JPS6322117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image recording apparatus, and more particularly to an image recording apparatus that uses a recording medium and is capable of recording an image signal for each recording track.

For example, an image recording apparatus has already been proposed that uses a recording medium such as a magnetic disk or a magnetic drum to magnetically record a still image signal for each set track.

This type of recording device is intended for still images, so its basic function is to record one image each time the camera is released. If you think about the uses of this type of device, if you can only record one image with one release like this, the function is not necessarily satisfactory and it imposes restrictions on the use. It is something that becomes.

On the other hand, with this type of device, for example, if the recording track is set to record continuously as long as the camera release is connected, it will be difficult to decompose a moving object. It is very convenient to be able to make photographic recordings and so-called frame-by-frame recordings, and it is also very useful when trying to analyze golf swings, batting, pitching motions, etc. By improving its functionality, it can be used for a variety of purposes.

The present invention has been made in view of the above-mentioned circumstances, and has been developed as an image recording device of this type, which is intended exclusively for recording still images, but which is also capable of recording moving objects, especially in terms of its functionality. The purpose of this device is to enable it to be used for multiple purposes.The main feature of this device is that the device can be operated in two modes: a first mode in which recording is performed on only one recording track, and a first mode in which recording is performed on multiple tracks. The present invention is provided with mode switching means capable of switching between the second mode in which recording is performed continuously.

According to a preferred embodiment of the present invention described below, a configuration is also provided in which the recording speed can be switched between at least two different speeds, especially in the second mode. Suggested. Furthermore, according to the embodiment, a configuration is also proposed in which video recording at video speed can be performed by using the above-mentioned mode switching means and further by combining it with a video recording device. . This can further improve the functionality of this type of device.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiment shown here is a case in which the present invention is applied to a handy camera. First, referring to FIGS. 1 to 3, the camera is indicated by CA in the figures. TL is a photographic lens, 1 is a focusing ring, and 2 is a zooming control rod. Reference numeral 3 denotes a half mirror for extracting the viewfinder light, which is arranged behind the photographic lens L in the camera body. Reference numeral 4 denotes a half mirror for taking out the photometric light, which is placed in the reflected optical path from the mirror 3, and a photometric element 5 is placed so as to receive the reflected light from the mirror 4.
Reference numeral 6 denotes a total reflection mirror, and behind the mirror 6, a finder optical system having a known configuration is arranged. 7 is an eye cup for the finder. Reference numeral 8 denotes a photographic diaphragm, which is placed behind the mirror 3, and is constructed so that it is possible to cut the diaphragm. 9 is a CCD image as a solid-state image sensor.
As a sensor, a well-known frame transfer type two-dimensional imaging CCD is used here. As will be described later, a lenticular lens and a color stripe filter are arranged in front of the imaging section of the CCD 9 as is well known. Reference numeral 10 denotes a cartridge loading chamber of the camera CA, into which, as shown, a magnetic recording cartridge 12 rotatably housing a magnetic recording disk 11 is loaded. As shown in FIG. 2, the cartridge 12 has a shaft 12a.
The disk 11 is rotatably supported by the
A central opening 12b for receiving the disk drive spindle 14 on the camera CA side and a slot 12c for receiving the magnetic head 15 also provided on the camera CA side are formed in a part of the housing. . As shown in FIG. 1, the disk 11 has a center hole 11a, and is rotatably supported by the shaft 12a in the center hole 11a.
The cartridge 12 has an arcuate slot 11b concentric with the cartridge 12, and is biased toward the center opening 12b by a leaf spring 13 provided inside the cartridge 12. Here, as shown in FIG. 2, the loading chamber 10 has a depressed depth, and when loading the cartridge 12, the cartridge loading chamber lid 16 is depressed.
In the opened state, it is inserted diagonally as shown by the imaginary line in Fig. 2, and at this time, its center opening 1
The spindle 14 is inserted into the slot 12b, and the magnetic head 15 is inserted into the slot 12c in the normal position by being tilted in the direction of the arrow in the figure. The leading end abuts against the magnetic recording section 11c of the disk 11. A plurality of recording tracks, for example 40, can be set in this recording section 11c, separated from each other, and magnetic signals for one frame of a still image are recorded on each track, as will be described later. Further, the disk 11 itself has flexibility, and the head pressure of the head 15 can be obtained by its elasticity. Incidentally, when the loading chamber cover 16 is closed, the cartridge 12 is positioned by leaf springs 17 and 18 (shown in the second figure) attached thereto.
The disk drive spindle 14 has a drive pin 14a that can be engaged with the arcuate slot 11b of the disk 11, and is connected to the shaft 1 of the flywheel 19.
9a, the flywheel shaft 1
9a is the boss part 21 of the camera frame, which prevents rotational play and thrust due to the bearing metal member 20.
It is mounted on a shaft so that there is no play. It should be noted that special attention must be paid to the problem of rattling of the shaft 19a since it has a very large effect on recording performance.

M ₀ is a motor for rotationally driving the flywheel 19, and a rubber belt 23 is stretched between the output pulley 22 and the flywheel 19. Reference numeral 25 denotes a head holding member that holds the head 15 at a bent arm portion 25a at its tip, and is a support that is attached to a part of the camera frame along the slot 12c of the cartridge 12. It is slidably supported by a rod 24 along the rod 24, is biased by a spring 26 in the direction of the arrow in FIG. It has ratchet teeth 25b formed to define the spacing between magnetic tracks in the recording section 11c of the disk 11. Note that the head holding member 25
When the magnetic head 15 is displaced by the spring 26 to the final position in the direction of the arrow in FIG. Designed. In this case, the number of teeth of the ratchet teeth 25b is, for example, 40 in accordance with the set number of tracks on the disk 11. Therefore, head 1
The total number of setting positions of 5 is 41. 27 is a ratchet feed pawl for engaging with the ratchet teeth 25b and shifting the holding member 25 one tooth at a time;
It is biased by a spring 28 in the direction of engagement with the ratchet teeth 25b, and is link-coupled to the movable armature Am of the plunger Pl. The plunger Pl has an armature depending on its energization.
Am is designed to protrude against the spring 29 by a stroke that allows the holding member 25 to be shifted by exactly one tooth. Reference numeral 30 denotes a locking claw for holding the holding member 25 in the forwarded position, which is rotatably supported by a shaft 31 installed in a part of the camera frame. It is biased by a spring 32 in the direction of engagement with the ratchet teeth 25b. 33 is a reset member for automatically returning the holding member 25 to the initial position where the head 15 is in contact with the outermost track of the disk 11 when the loading chamber cover 16 is opened; The tail end 3 of the locking pawl 30 has a hook portion cut out.
It is attached to a part of the lid 16 in such a way that the hook portion can be engaged with the lid 16. Therefore, when the lid 16 is opened, the locking claw 3 is opened by the reset member 33.
0 is rotated against the spring 32, and at the same time, the feed pawl 27 is also rotated against the spring 28 by the protrusion 27a at the tip being pushed by the head 30a at the tip of the locking pawl 30. It is rotated about the link connection point with the armature Am as a fulcrum, and the engagement with the ratchet teeth 25b is released, whereby the holding member 25 is automatically returned to the above-mentioned initial position. In addition, this reset member 3
3 has some flexibility, and when the lid 16 is opened beyond a certain angle, the engagement with the locking pawl 30 is released, and when the lid 16 is closed, its head is released from the locking claw 30. By colliding with and overcoming the tail end 30b of the pawl 30, the hook portion is set at a position where it can engage with the tail end 30b. Therefore, it would be a good idea to make the edge portion of the tail end 30b of the locking pawl 30 rounded as shown in FIG. In FIGS. 1 and 3, 34 is a release button, which is of a so-called two-stage release type. Reference numeral 35 denotes a grip section, in which a power source battery E is accommodated. Also, in Figure 1, the EU
is an electric circuit unit, the details of which will be described later. Further, in FIG. 3, 36 is a dial for mode selection, which can be switched to indicators "S", "C ₁ ", "C ₂ ", and "MV". Here, these indicators mean that "S" means one image shot, "C ₁ " means continuous image shot at a rate of, for example, 7.5 images per second, and "C ₂ " means, for example, one image shot per second.
``MV'' refers to a continuous image shot at a rate of about 3.75 images per second, and ``MV'' refers to a moving image shot at a rate of 30 images per second, which is the standard video recording speed. be). 37 is a slide for selecting the shift of the head 15 relative to the recording track between automatic and manual when shooting one image, and can be switched between index "A" and "M";"M" indicates automatic shift, and "M" indicates manual shift. 38 is a push button for shifting the head 15 when manual shift mode "M" is selected;
It is capable of operating the plunger Pl.
It should be noted that it is clearly unreasonable to manually shift the head 15 in the modes "C ₁ ", "C ₂ " and "MV", so here, for example, as shown in FIG. , in modes "C ₁ ", "C ₂ " and "MV", the switching from "A" to "M" of the slide 37 is prohibited, and this switching is allowed only in the case of mode "S"; If the mode is switched to "C ₁ ", "C ₂ " or "MV" while the slide 37 is in the "M" position, the slide 37 will be automatically reset to the "A" position. A cam 39 is provided in interlocking relation with the dial 36 so that the cam 39 faces a follower portion 40a of a pin-slot engagement plate 40 on which the slider 37 is provided. Note that 41 is a click stop spring. Furthermore, the mode symbols shown in parentheses for the cam 39 indicate the cam area corresponding to each mode.

Returning to Figure 3 again, 42 is an external output jack for video signals (NTSC signals), to which a general VTR device can be connected, and this is especially true when the mode is set to "MV". used. That is, the number of image frames that can be recorded on the disk 11 is only 40 at most according to the above example, so even if you try to record a moving image on this disk 11 at video recording speed, it will end up being around 1 second. Also, even if you increase the number of tracks on a disk, there is a limit to how many tracks there are, so it is unreasonable to use a disk to shoot video shots, but here we will introduce this jack for the MV mode. 42, it becomes possible to shoot long moving pictures in combination with a VTR device, further expanding the camera's functionality. 43 is a remote control jack, to which a remote controller is connected.

The above is the configuration of the main parts of this camera CA that are particularly relevant to the present invention.Next, the details of the circuit configuration of the electric circuit unit EU will be explained.

First, FIG. 5 shows the configuration of an imaging-video signal (NTSC signal) generation-magnetic recording system, where 44 is an oscillation circuit that generates a relatively low frequency clock pulse on the order of KHz, and 45 is the oscillation circuit. 46 is a synchronous control circuit that generates various synchronous control signals necessary for synchronously controlling the circuit system shown here based on clock pulses from 44;
An oscillation circuit 47 generates a relatively high frequency clock pulse on the order of Hz, and an oscillation circuit 47 generates a clock pulse from the oscillation circuit 46 and a synchronization control circuit 45.
Based on the CCD synchronous drive control signal (this is basically a vertical synchronous signal, for example),
This is a sink driver that outputs various signals necessary to synchronously drive the CCD9. Furthermore, here
As schematically shown in FIG. 6, the CCD 9 includes an imaging section (photosensitive section) 9a consisting of a large number of photosensor elements arranged in a matrix, and each element accumulated in the imaging section 9a. A storage section 9b that takes in the charges corresponding to the respective elements and stores them in correspondence with the addresses of each element, and an analog shift block that transfers the charges stored in the storage section 9b in time series. As is well known, all of the registers except the imaging section 9a are shielded from light, and a fifth resistor is provided in front of the imaging section 9a.
As shown in the figure, a color stripe filter 48 and a lenticular lens 49 are arranged. From the sink driver 47 to the CCD
9 includes a signal for controlling the accumulation of charges in the imaging section 9a, and a signal for controlling the accumulation of charges in the imaging section 9a. a clock pulse for transferring the data to the storage section 9b in a very short time;
Then, the electric charges taken into the storage section 9b are all chronologically transferred through the shift register 9c during, for example, 1/60 seconds (this corresponds to the time of 1V-1 vertical scan on a television). It includes clock pulses, etc. for outputting (that is, reading out stored charges), and the timing of these signals and pulses is controlled by a synchronous control circuit 45.
It is defined based on control signals from. still,
Although not shown in FIG. 6, the shift register 9
It goes without saying that the charge transferred by c is ultimately converted into voltage, current, etc. and output. In addition, this type of frame transfer type
Since CCD is already well known, further detailed explanation will be omitted.

Now, returning to Figure 5 and continuing the explanation, 5
0 and 51 are sample and hold circuits for removing noise components in the output of the CCD 9, and these circuits are controlled by a control signal (sampling signal) from the synchronization control circuit 45. 52 is a video signal (NTSC signal) generation circuit; a luminance signal output circuit 53 outputs a luminance signal Y according to the output from the sample and hold circuit 50; and a color signal R-Y according to the output from the sample and hold circuit 51. and B
A color signal output circuit 54 that outputs -Y, and signals Y, R-Y, B-Y from these circuits 53 and 54.
An encoder 55 that outputs an NTSC signal based on
As is well known, a color signal output circuit 5
4 and the encoder 55 include the synchronous control circuit 45.
A synchronization control signal is given from. Incidentally, since this type of video signal generating circuit is already well known, only the display based on the functional blocks will be given here. 56 is a magnetic recording circuit for video signals;
Filter 57, pre-emphasis circuit 58, FM
Modulation circuit 59, high pass filter 60, band pass filter 61, frequency conversion circuit 62,
A well-known configuration of a so-called color subcarrier low-pass conversion multiplex recording system consisting of a low pass filter 63, a mixing circuit 64, and a recording amplifier 65 is adopted. still,
Although the operational functions of a circuit adopting this method are already well known, to briefly mention them here, first, the NTSC signal from the video signal generation circuit 52,
That is, when a composite color video signal is input, a luminance signal Y is obtained from this video signal by a low pass filter 57 and a band pass filter 61, respectively.
and a 3.58MHz color subcarrier signal _fc .
The separated luminance signal Y is sent to the pre-emphasis circuit 58.
Apply pre-emphasis depending on the FM modulation circuit 5.
After FM according to 9, high pass filter 60
It is applied to the mixing circuit 64 as an FM luminance signal excluding a part of the lower sideband, and on the other hand, the color subcarrier signal f _c
is balanced modulated in the frequency conversion circuit 62 by the signal f _u of a predetermined frequency from the synchronization control circuit 45, and then
The low-pass filter 63 takes out the difference signal, that is, the low-frequency conversion color subcarrier signal f _s =f _u −f _c and supplies it to the mixing circuit 64 . A mixed signal (that is, a VTR signal) of the color signal carried on the color subcarrier _fs and the FM luminance signal excluding a part of the lower side band is obtained, and this signal is sent to the head 15 through the amplifier 65. The data is recorded on the track of the disk 11 depending on the data.

Next, a first specific example of the sequence control system according to the present invention applied to the configuration described above will be explained with reference to FIG. In the first example shown here, the magnetic head 15 described above is
For example, as shown in FIG. 8, the magnetic track on the disk 11 on which an image signal is to be recorded (hereinafter referred to as recording) is a track that has already been recorded. A composite magnetic head consisting of a head 15A and a recording head 15B is used, and when the disk 11 rotates in the direction of the arrow in FIG. 1, the detection head 15A precedes the recording head 15B. If the track is a track that has already been recorded,
This system is designed to prevent double recording on already recorded tracks while properly recording on unrecorded tracks at all times.

In FIG. 7, SW ₁ is a switch linked to the dial 36, and is configured to be in a closed state in all modes other than the "MV" mode. Tr ₁ is a switching transistor, and SWR ₁ is a first stage camera switch that is turned on at the first stage of the release button 34.
The release switch is connected to the base of the transistor _Tr1 . PMC is a photometric circuit that determines an appropriate aperture value based on the output of the photometric element 5 and the charge accumulation time of the imaging section 9a in the CCD 9. In this embodiment, this accumulation time is uniquely defined by the time factor in the control signal given to the sink driver 47 from the synchronization control circuit 45 shown in FIG. According to the above, the time will be fixed at about 1/60 seconds, and therefore,
In this case, fixed information regarding this time is given in advance to the photometric circuit PMC. By the way, this time corresponds to the exposure time of the film in a camera that uses general silver halide film, so this photometering circuit PMC can be used as is in the configuration of the photometering circuit in well-known film cameras. It is. Reference numeral 66 denotes an aperture drive means such as a meter or a motor that adjusts the aperture 8 to a proper aperture value in response to the output of the photometric circuit PMC, and its output shaft is connected to the aperture 8. As mentioned above, the aperture 8 in this case has a so-called aperture-cut configuration (this is due to the so-called "burn-in" of the CCD 9).
(The purpose of this is to prevent When the coil is not energized, the diaphragm 8 should be held in a fully closed state, and if a motor is used, a power storage means such as a capacitor should be connected to it. The diaphragm 8 may be forcibly driven to close by being supplied with the holding power of this electricity storage means when the output from the photometric circuit PMC is cut off. Will.

Reference numeral 67 denotes a scale member for displaying the aperture value, which is driven together with the aperture 8 by the aperture driving means 66, and is, for example, a scale member with an aperture value scale marked on a transparent film, and is placed at a visible position within the camera viewfinder. The aperture value at which the diaphragm 8 has been adjusted is displayed depending on the coincidence of the scale with the fixed index 63. La ₁ is the scale member 67
It is a lamp for illuminating from behind, and is connected to the output stage of transistor Tr ₁ , and is powered and lit when transistor Tr ₁ becomes conductive.
Therefore, in addition to illuminating the scale member 67, it also functions to display that the release button 34 has been pressed down to the first stage. MCC is a motor control circuit for controlling the constant speed rotation of the motor _M0 , _SW2 is a switch that is connected to the dial 36 and is turned on only in modes " _C1 " and " _C2 ", and OSP is a This is a one-shot pulse circuit that outputs a momentary high pulse when powered by the conduction of transistor Tr ₁ , and this pulse resets flip-flop FF ₁ via OR gate OG ₁ . OR gate to input R
It is applied via OG ₂ to the set input S of flip-flop FF ₂ and via the OR gate OG ₃ to the reset input R of flip-flop FF ₃ . SWR ₂ is a release switch that is turned on at the second stage of the release button 34, and its ON-
The OFF signal is applied to the set input S of the flip-flop _FF1 via the differentiating circuit DFC and the inverter _IV2 . Note that flip-flop FF ₁ is set only after switch SWR ₂ is turned on and its output becomes low, and this output is applied to the base of transistor Tr ₁ , so the release button 34 is pushed down to the second stage, the holding of transistor Tr ₁ becomes stiff,
Even if the press of the release button 34 is immediately released, the transistor Tr ₁ does not become non-conductive, and as will be described later, the switch SWR ₂ is turned off and the detection head 15A detects a recorded track. When this occurs, this holding is released and the circuit becomes non-conductive.

DLC is a delay circuit having a delay time corresponding to the time (50 to 100 msec) required for the motor _M0 to start up, and its output is applied to the AND gate _AG1 .

CNT ₁ inputs the vertical synchronizing signal (FIG. 10a) from the synchronization control circuit shown in FIG. , c and d are output.

AG ₅ is an AND gate that takes the AND of the above A output and B output, and its output is as shown in Figure 10e, and AG ₆ is an AND gate that takes the AND of the above A, B, and C outputs. The output is as shown in FIG. 10f. Now, if the synchronization of the input shown in Fig. 10a is 1/30 sec, the period of the A output will be 1/15 sec, and the AND gate AG ₅ ,
The high level time of AG ₆ output and A output is 1/
Since it is 30 seconds, each output is set to mode "S",
It can be used as a recording control signal in “C ₁ ” and “C ₂ ”, and these outputs A and the outputs of AND gates AG ₅ and AG ₆ depend on the switch SW ₃ linked to the dial 36. , respectively mode "S",
It is designed to be selected by "C ₁ " and "C ₂ ".
In addition, the counter selected by this switch SW ₃
The output of the CNT ₁ is provided between the output stage of the imaging/video signal generation/magnetic recording system circuit 69 configured as shown in FIG. 5 (i.e., the amplifier circuit 65 shown in FIG. 5) and the recording head 15B. analog recording control
It is attached to the switch ASW, and recording is controlled by this. Further, the clear terminal CL of the counter _CNT1 is provided with the Q output of the flip-flop _FF2 , and counting is possible only when this Q output is low.

La ₂ depends on the transistor Tr ₂ which receives the Q output of the flip-flop FF ₂ at its base.
This lamp lights up when the output is low, that is, when the counter CNT ₁ is counting, to indicate that recording is being performed.

AP is an amplifier that amplifies the output of the detection head 15A, HIC is a signal integration circuit that integrates the signal output from the amplifier AP, and COM is a comparator.
The output of the comparator COM is high for a recorded track and low for an unrecorded track, which is connected to the AND gate AG ₃ and the OR gate.
Assigned to gates OG ₁ , OG ₂ and OG ₃ . Further, the inverted signal of the output of the comparator COM is applied to AND gates _AG1 and _AG2 .

CNT ₂ is a counter that receives the clock pulse from the 5th oscillation circuit 44 shown in the figure and divides the frequency thereof, and by giving two appropriate outputs thereof to AND gate AG ₄ , drives the plunger Pl. I am trying to obtain a pulse with a duty that is sufficient for this purpose. The output of the AND gate _AG4 is applied to an AND gate _AG3 , and the output of the AND gate _AG3 is applied to the base of the transistor _Tr3 .

La ₃ is a lamp that lights momentarily to indicate this when a track has already been recorded in mode "S-M", that is, 1 image shot - manual head shift mode. 37
It is connected to the collector side of the transistor Tr 3 in mode "M" by the switch SWM ₁ interlocked with the transistor Tr ₃ . In addition, in mode "A", the switch SWM ₁ connects the plunger Pl to the transistor Tr ₃ .
Connect to the collector of SWP is a push switch turned on by the push button 38, and SWM ₂ is linked to the slide 37,
This is a switch that connects the switch SWP to the plunger Pl in mode "M".

In addition, the jack 42 for external output of the above NTSC signal
is connected to the circuit 69, ie, more specifically, to the output stage of the video signal generation circuit 52 in FIG. Further, the remote jack 43 is connected to switches SWR 1 and SWR ₁ through diodes D ₁ and D ₂ as shown in the figure.
Connected in parallel with SWR ₂ .

SWE is a normally closed end switch that is opened when all tracks on the disk 11 have finished recording, and is connected in series with the transistor _Tr1 . Incidentally, it would be reasonable to use the configuration shown in FIG. 9, for example, as a configuration for activating this end switch SWE. That is, in the illustrated configuration, the tail end is attached to a part of the camera frame as the axis 70.
A track count member 72 is pivotally attached to the head holding member 25, and a pin 71 set on the head holding member 25 is engaged with a slot 72a in the middle thereof, thereby swinging in response to the feeding of the holding member 25. established,
A pointer 73 attached to the tip of the counting member 72
This allows the number of recorded tracks to be displayed on the track number scale plate 75 disposed in the window 74, and furthermore, the holding member 25 is moved to the left in the figure by the total number of its ratchet teeth 25b. At the point when the counting member 7 is shifted inward, that is, when the recording portion 11c of the disk 11 has left the track of the innermost circumference and is further shifted inward by one tooth, the counting member 7
The end switch SWE can be opened by a switch opening protrusion 76 at the tip of the end switch SWE.
In addition, the power supply to the circuit system shown in Figure 5 is from the photometry circuit.
Like the PMC, it is controlled by the transistor _Tr1 .

Now, next, the operation of the camera having the above electrical system configuration will be explained. As mentioned above, this camera has two modes: "S-A" (single image shot - automatic head shift) and "S-M".
(1 image shot - manual head shift), "C ₁ "
There are five modes: (continuous shots at 7.5 images/second), "C ₂ " (continuous shots at 3.75 images/second), and "MV" (video shots depending on the VTR speed using a VTR device). However, in order to facilitate understanding, the case of mode "SA" will first be explained with reference to the timing chart of FIG.

First, the camera CA is loaded with a cartridge 12 in which all tracks on the disk 11 are unrecorded (at this time, the head 15 is set at its initial position as described above, and therefore end switch SWE is also on), and the dial 36 is in the "S" mode position, switch SW ₁ is in the closed state, SW ₂ is in the open state, and switch SW ₃ is in the counter state.
Connected to the A output terminal of CNT ₁ . Further, when the slide 37 is set to the "A" mode position in this state, the switch SWM ₁ is connected to the plunger Pl side, the switch SWM ₂ is opened, and the camera CA becomes the "S-A" mode.

In this state, while looking through the viewfinder, the camera CA
Aim the camera at the desired object and press the release button 34 to the first step to release the release switch.
Since SWR ₁ is turned on, transistor Tr ₁ becomes conductive, and therefore, the photometric circuit PMC is activated and the aperture 8 is turned on.
When the aperture value is adjusted from the fully aperture state to the appropriate aperture value, the lamp La ₁ is turned on to illuminate the scale plate 67, and the motor M ₀ is started to rotate the disk 11. This situation is the first
1 a, b, d-f. Furthermore, when the transistor _Tr1 becomes conductive, the one-shot pulse circuit OSP outputs a pulse as shown in _FIG .
Flops FF ₁ and FF ₂ are reset and set respectively and their outputs and Q outputs are shown in FIG. 11h and i.
It becomes high as shown in .

On the other hand, when the transistor Tr ₁ becomes conductive, power is supplied to the circuit system shown in FIG. 5 to start driving the CCD 9.
Imaging - video signal generation - VTR signal output starts. At this time, the synchronous control circuit 45
Since then, a vertical synchronizing pulse as shown in FIG. 11k is applied to the counter CNT ₁ .
Since the Q output of flip-flop FF ₂ is low, CNT ₁ is locked in a clear state, that is, in a non-countable state, and does not count any of the pulses, so its A output is as shown in FIG. As shown, it is low and the analog switch ASW remains off. Also, at this time, the counter
A clock pulse is now applied to CNT ₂ from the oscillation circuit 44. Furthermore, when the time required for the motor _M0 to rise to a steady speed has elapsed after the conduction of the transistor _Tr1 , the output of the delay circuit DLC becomes high, as shown in FIG. AT AND GATE AG ₁ of 1
Input goes high.

Also, at this time, since the disk 11 is completely unrecorded, no signal appears in the output of the detection head 15A, so the output of the comparator COM is low as shown in Figure 11n. . Therefore, the plunger Pl is not energized and the head 15
A, 15B are initial positions, that is, disk 1
It is held at a position in contact with the outermost track in the recording section 11c of No. 1. Also, inverter IV ₁
One input of AND gate AG ₁ becomes high depending on the output of .

Now, when the release button 34 is pressed down to the second stage in this state (as shown in FIG. 11a), the release switch SWR ₂ is turned on as shown in FIG. 11c, and the inverter
The output of IV ₂ is inverted from low to high, so flip-flop FF ₁ is set, and at this time the output of AND gate AG ₂ is high, so flip-flop FF ₃ sets input S to that AND gate.
The output of AG ₂ is applied to the flip-flop
FF ₃ is set and its Q output goes high as shown in Figure 11m. According to this and gate
Since all three inputs of AG ₁ are high, its output is high at this point, and therefore the Q output of flip-flop FF ₂ is inverted low as shown in Figure 11i, so that the counter CNT ₁ is cleared and starts counting input pulses.

Incidentally, when the output of the inverter _IV2 is reversed from low to high, the flip-flop _FF1 is set and its output becomes low as shown in Fig. 11h.
Therefore, since the transistor Tr ₁ is kept conductive, even if the release button 34 is released at this point, the power supply to the circuit system is not cut off and the following operation continues.

Now, when the counter CNT ₁ starts counting its input pulses and its A output goes high as shown in Figure 11l, this causes the analog switch to
When the ASW is turned on, the output of the fifth amplifier circuit 65 shown in the figure is applied to the recording head 15B, so that a signal for one frame of the target image is magnetically recorded on the outermost track of the disk 11. . Here, the A output at this time is the 10th output in this embodiment.
As explained with reference to the figure, the frequency of the vertical synchronization signal (FIG. 10a) from the synchronization control circuit 45 is divided by 2, and the high level time is one period of this vertical synchronization signal, that is, 1 /30 seconds, and on the other hand, as is well known in the circuit system shown in Figure 5, during this 1/30 second
Since the readout of the nCCD output is repeated twice successively, signals of 2 fields - 1 frame are magnetically recorded on the track of the disk 11 after all. Also, for this reason, the motor control circuit is designed here to control the motor M ₀ at a constant speed of 1800 rpm.

In this way, when 1/30 second elapses after the A output of the counter CNT ₁ becomes high, the A output becomes low again and the analog switch ASW turns off.
During this time, one frame worth of signals is recorded on the track of the disk 11 using the two-field method, but as described above, the detection head 15
Since the detection head 15A is provided in advance of the recording head 15B, when one frame of recording is completed, the detection head 15A picks up the magnetic signal recorded by the recording head 15B, and therefore detects the magnetic signal recorded by the recording head 15B. Since the signal component begins to appear in the output, at this point the output of the comparator COM becomes high as shown in Figure 11n, and as a result, the output of the inverter IV ₁ becomes low, so that the output of the AND gate AG ₁ becomes high. Output goes low. Also, the comparator COM at this time
The high output of flip-flop _FF2 sets its Q output to high as shown in FIG. 11i. As a result, the counter CNT ₁ is cleared and is restricted to a non-counting state, so its A output remains low after the recording end point, as shown in Figure 11l, and the analog switch ASW
remains off. Also, comparator COM
When the output of becomes high, the output pulse from the AND gate AG ₄ is applied to the base of the transistor Tr ₃ through the AND gate AG ₃ , so that the transistor Tr ₃ becomes conductive and the plunger Pl becomes conductive. Since the head holding member 25 is moved by one tooth of its ratchet teeth 25b by the second shown feeding pawl 27, the heads 15A, 15B are shifted to the second track of the disk 11, and here. Now, since disk 11 is completely unrecorded, heads 15A and 15B
When the shift to the second track is performed, the output from the detection head 15A loses its signal, so the output of the comparator COM becomes the first track.
As shown in FIG. 1n, at this point it becomes inverted to low.

Furthermore, when the output of comparator COM becomes high,
Flip-flop _FF3 is reset. or,
When the output of the comparator COM goes high, the flip-flop _FF1 is reset and its output goes high as shown in FIG. 11h, so that the conductivity of the transistor _Tr1 is released. Therefore, at this point, the release button 34 has been released and the release switch SWR ₁ ,
If SWR ₂ is off, transistor Tr ₁ becomes non-conductive and power supply to the entire circuit system is cut off. Also, regarding the timing to release the press of the release button 34, for example, as shown in FIG. 11a, after pressing the release button 34 to the second step,
That is, once the switch SWR ₂ is turned on, the conduction of the transistor Tr ₁ is maintained by the action of the flip-flop FF ₁ as described above.
The camera automatically performs the above operations to
5A and 15B, it stops when it finishes shifting to the second track.
As shown in the figure, if the first stage is pressed but the second stage is not pressed before the release is released, this transistor Tr ₁ is not maintained conductive, so the camera is activated when the release button 34 is released. It will stop.

Although the explanation may be confusing, while the Q output of flip-flop FF ₂ is low, that is,
During recording, the transistor Tr ₂ becomes conductive, causing the lamp La ₂ to light up, thus displaying the fact that recording is in progress. Furthermore, this lamp La ₂
It would be convenient to arrange the lights so that they can be seen in the viewfinder.

In this mode “S-A”, the camera is 1
After the recording of frames is completed, the heads 15A, 15
B is stopped or on standby with an automatic shift to the next track being performed, and therefore, the above-mentioned operation is repeated every time the release button 34 is pressed down to the second stage. Hey, disk 11
An image signal for one frame is sequentially recorded on each track.

The number of recorded tracks at this time is sequentially indicated on the track number scale plate 75 by a pointer 73 attached to the tip of the counting member 72 shown in the ninth figure. Further, when the recording on the innermost track of the disk 11 is completed and the heads 15A, 15B are automatically shifted, the end switch SWE is opened by the protrusion 76 at the tip of the count member 72.
The power supply to the entire circuit system will be temporarily cut off.

Now, the above is a case in which no recording has been made on the disk 11 at all, but if, for example, a cartridge in which recording has already been done up to the middle track is loaded, the situation will be as follows. That is, first, if the first track of disk 11 is already recorded, the switch SWR ₁
Since the output of the comparator COM becomes high when the motor _M0 is turned on and the motor M0 starts, recording is prohibited as described above, and the plunger
Pl is energized and the heads 15A, 15B are shifted to the next track. Also, at this time, the output of inverter IV ₁ becomes low, so even if flip-flop FF ₁ is set at this time, that is, even if switch SWR ₂ is closed, its output remains low. Therefore, flip-flop _FF3 is not set. On the other hand, head 15
If the new track is unrecorded when A and 15B are shifted, the comparator
Since the output of COM becomes low, recording prohibition is canceled, and the output of AND gate AG ₂ becomes high and flip-flop FF ₃ is set, so one frame is recorded as described above. signal is recorded on this new track, but if this new track is also a previously recorded signal, the comparator
Since the output of COM remains high, the heads 15A and 15B are further shifted to the next track while recording is prohibited.

Therefore, if a cartridge is used in which some of the tracks have already been recorded, recording will be prohibited for the already recorded tracks, and heads 15A and 15B will be automatically shifted without double recording. Then, when an unrecorded track is detected, recording is started on the unrecorded track.

Now, the above was for the case where the mode is "S-A", but next, in the case of the mode "S-M", that is, one image shot - manual head shift, the slide 37 is moved to the "M" position. Switch by switching
Since SWM ₁ is switched from the plunger Pl side to the lamp La ₃ side and the push switch SWP is connected to the plunger Pl via the switch SWM ₂ , the tracks that the heads 15A and 15B are in contact with have already been recorded. Even if this is detected, the heads 15A, 15B are not automatically shifted to the next track, but instead, the lamp La ₃ lights up momentarily to indicate that the adjacent track of the heads 15A, 15B has already been recorded. A warning will be displayed. In this case, by pressing the push button 38 and turning on the switch SWP, the head 15A,
15B can be shifted to the next track.

Therefore, in this mode "S-M", if the contact tracks of the heads 15A and 15B are not recorded from the beginning, recording is performed in the same manner as described above by the camera release. Also, even if the output of the comparator COM becomes high at the end of this recording, the lamp La ₃ will only turn on momentarily and the heads 15A and 15B will not be shifted to the next track. This shift is performed by putting in the push switch SWP. On the other hand, heads 15A and 15B
If the corresponding track has already been recorded from the beginning, the lamp La ₃ will light up momentarily, so switch it now.
When the SWP is turned on, heads 15A and 15B are shifted to the next track, and if this track is unrecorded, recording is performed on this unrecorded track.
Of course, if this track has already been recorded, the lamp _{La 3} will turn on again for a moment to warn you, so the warning will be repeated until the heads 15A and 15B reach the unrecorded track, and the push button will stop.・Head 1 is set by repeatedly pressing the button 38.
It is not until 5A and 15B reach the unrecorded track that recording is started on the unrecorded track.

Next, in the case of mode "C ₁ " or "C ₂ ", that is, in the case of continuous image shots, the switches SW 1 to _{SW 3 are} switched by switching the dial 36 to the mode "C ₁ " or "C ₂ " position. In either case, the mode is switched to the "C ₁ " or "C ₂ " terminal.

Therefore, the differentiator circuit DFC is short-circuited by the switch SW ₂ , and while the switch SWR ₂ is on, the flip-flop FF ₁ remains set, and therefore the release button 34 remains set.
While pressing up to the second step, the heads 15A, 15
As long as the adjacent track of B is an unrecorded track, recording is not prohibited and recording continues and continuous image shots are performed. Of course, in this case, as can be understood from the operation in mode "S-A" mentioned above, if there is a recorded track on the way,
As soon as this recorded track is detected, the output of the comparator COM goes high, so flip-flop FF ₂ is set and the counter
When CNT ₂ is cleared (that is, recording is prohibited), the plunger Pl is energized and the heads 15A, 15
B is automatically shifted to the next track, and if this track is unrecorded, recording will begin on that track. This operation continues as long as the release button 34 is pressed down to the second position. In addition, transistor Tr ₁
The conduction is maintained in the same way as in the above case.
Also, in the case of mode "C ₁ ", the AND gate
The output of AG ₅ and, in the case of mode "C ₂ ", the output of AND gate AG ₆ are selected by switch SW ₃ , respectively, as explained with reference to FIG. In the case of mode "C ₁ ", continuous shots are made at 7.5 images/second, and in the case of mode "C ₂ ", continuous shots are made at 3.75 images/second.

By the way, this camera has an external output jack of 42.
When a general VTR device is connected to the , and dial 36 is set to mode "MV", the normal VTR speed,
That is, it is possible to shoot moving pictures at a speed of 2 fields - 30 frames/second. That is, dial 36
When set to mode "MV", switch SW ₁
~ SW ₃ are all switched to their mode “MV” terminals, so in this case, release button 3
Follow 4 to the first step and press the switch.
Simply turning on SWR ₁ activates the circuit 69 and outputs an NTSC signal from the jack 42, which causes magnetic recording in the VTR device in a well-known manner.

Next, a second specific example of the sequence control system according to the present invention will be described with reference to FIG. In the second example shown in FIG. 12, one magnetic head is used both for detecting unrecorded and recorded tracks and for recording, and its operation mode is switched as appropriate using the output of the counter _CNT1 . In particular, it is designed to function in exactly the same way as the control system shown in FIG.
In the figure, elements designated by the same reference numerals as in FIG. 7 are completely the same as those described above, and therefore, only the parts that are different from the configuration shown in FIG. 7 will be explained here. In the figure, 15' is a magnetic head for detection and recording, and is connected to the analog switch described above.
An analog signal provided at the input stage of the ASW and the unrecorded track detection circuit (i.e., amplifier AP, signal integration circuit HIC, and comparator COM).
The analog switch ASW' is connected to the analog switch ASW', and the analog switch ASW' has an inverter of the signal to be applied to the analog switch ASW.
An inverted output according to IV ₄ is provided. Therefore, according to this circuit configuration, when the output of counter CNT ₁ is low, analog switch ASW' is turned on and head 15' is turned on.
is used to detect a previously recorded track, and when an unrecorded track is detected at this time and the output of counter CNT ₁ becomes high, analog switch ASW is turned on and the head 1 is detected.
5' is used for recording on the unrecorded track. The other details of the operation are exactly the same as those of the circuit system shown in FIG. 7, so a description thereof will be omitted.

Now, in all of the embodiments shown above, the heads are mechanically shifted with respect to the tracks of the disk 11, but finally, the magnetic heads are shifted to a multi-channel system corresponding to the number of tracks on the disk 11.・The 13th embodiment concerns a case where this is fixedly provided as a head, and by sequentially switching channels, it is possible to determine whether each track is unrecorded or recorded, and to record on unrecorded tracks. This will be explained with reference to FIG.
Note that Figures 13 and 14 only show the configuration of the main parts to obtain the above functions, and other necessary parts are shown in Figures 7 and 1.
This will be explained with reference to the configuration shown in FIG.

First, the example shown in Fig. 13 is for the configuration shown in Fig. 7, and in the figure, CNT ₃ is the channel
This counter has a built-in decoder for shifting, and its clear terminal CL is connected to the one-shot pulse circuit mentioned above.
It is designed so that the output of OSP is given. IV ₅
is an inverter for obtaining an inverted signal of the output of the one-shot pulse circuit OSP, OC is a one-shot circuit triggered by the rising edge of the output of the inverter _IV5 , and _OG4 is the one-shot circuit OC. The output of and the Q of AND gate AG ₃
The output of the OR gate _OG4 is applied to the clock input terminal CK of the counter _CNT3 as a count-up clock. .

_15A1 to _15Ao are fixedly provided holes corresponding to each track of the disk 11, respectively.
Recorded track detection head, 15B ₁ ~ 15B _o
Similarly, a recording head is fixedly provided in correspondence with each track, and these are configured as a so-called multi-channel head, and are different from the case of the head 15 shown in FIG. Similarly, when the disk 11 rotates, the detection head 15A ₁
.about.15A _o are arranged integrally so as to always precede the recording heads 15B ₁ -15B _o . ASW′ ₁ ~ASW′ _o is each head 15A ₁ ~
15A _o , both of which are connected to the input stage of the unrecorded track detection circuit, that is, the amplifier AP. ASW ₁ ～
ASW _o is an analog switch connected to each head 15B ₁ to 15B _o , and each of them is an analog switch connected to each head 15B 1 to 15B o.
It is connected to the output stage of the video signal generation/magnetic recording system circuit 69. AND ₁ to AND _o are the ANDs of the A output of the counter CNT ₁ selected by the switch SW ₃ or the output of the AND gate AG ₅ or AG ₆ , and each of the outputs 1 to n of the counter CNT ₃ , respectively. is an AND gate that takes , the output of each of which is
are assigned to analog gates ASW ₁ to ASW _o , respectively. Note that outputs 1 to n of the counter CNT ₃ are applied to the analog switches ASW' ₁ to ASW' _o , respectively.

According to the above configuration, first, in the first stage of the release, the one-shot pulse circuit OSP
When a one-shot pulse is output as shown in FIG. 1g, the counter CNT ₃ is powered up and cleared, and its outputs 1 to n all become low. Next, the one-shot circuit OC is triggered by the rise of the output of the inverter IV ₅ at this time and outputs a one-shot pulse, which causes the counter CNT ₃ to count up by one and first count up. Output 1 goes high. Therefore, if the mode is set to "C ₁ " or "C ₂ " and the output of counter CNT ₁ is low, only analog switch ASW' ₁ is turned on and the detection head is turned on. The output of _15A1 is now given to the amplifier AP. And head 1
If the first track where 5A ₁ and 15B ₁ are in contact with each other is unrecorded, as described above, the output of the counter CNT ₁ becomes high, so the output of the AND gate AND ₁ becomes high, and therefore, , recording head 15B ₁
Accordingly, recording is performed on the first track. After this recording is finished, the detection head 15
When it is detected that A ₁ has already been recorded, the output of AND gate AG ₃ goes high in the same way as described above, so counter CNT ₃ counts up by one and output 2 goes high this time. Therefore, since the analog switch ASW' ₂ is turned on, the detection head 15A ₂ detects whether or not the second track is unrecorded. If it is unrecorded, the above-mentioned process is performed. Similarly, when the output of the counter _CNT1 becomes high, the recording head _15B2 starts recording the second track. or,
If it has already been recorded, the output of AND gate AG ₃ will go high, so counter CNT ₃ will count up by one and its output 3 will go high,
Therefore, the above-mentioned detection is performed for the third track, and if the mode is "C ₁ " or "C ₂ ", the release button 34 is pressed as in the above embodiment. Recording to unrecorded tracks will be repeated for as long as possible.

In addition, when the mode is "S", after recording to the unrecorded track is finished, the Q output of AND gate AG ₃ becomes high, and the counter CNT ₃ is incremented by one, and the flip is started.・Flop
The camera stops operating due to the action of FF ₃ , and when the release button 34 is released and then pressed again, the detection heads start from detection head _15A1 until an unrecorded track is detected. When channels 15A ₁ to 15A _o are switched and an unrecorded track is detected, recording is performed using the recording head corresponding to this track.

The example shown in FIG. 14 is for the configuration shown in FIG. 12, and the head 1 in the configuration shown in FIG.
5A ₁ to 15A _o and 15B ₁ to 15B _o are shown as 1 in the figure.
As shown by 5' ₁ to 15' _o , analog switches ASW' ₁ and ASW ₁ , ASW' ₂ and ASW ₂ . . . ,
Connect to ASW′ _o and ASW _o to create a multi-channel head for both detection and recording.
Each counter is selected by switch SW ₃ .
Invert signal and counter of A output of CNT ₁ or output of AG ₅ or AG ₆ by inverter IV ₆
AND with each output 1 to n of CNT ₃
Gates AND′ ₁ to AND′ _o are provided, and each output of the AND gates AND′ ₁ to AND′ _o is connected to an analog signal.
The switches ASW′ ₁ to ASW′ _o are added to the switches ASW′ 1 to ASW′ o.

Note that the operation when the configuration shown in FIG. 14 is used can be easily understood from the explanation of the circuit configuration shown in FIGS. 12 and 13, so a description thereof will be omitted.

According to the structure shown in FIGS. 13 and 14, no mechanical structure for head shifting as shown in FIG. 2 is required. In addition, when adopting this configuration, it is inconvenient to provide a configuration for switching between "A" and "M", that is, a slide 37, a push button 38, and switches SWM ₁ , SW ₂ , and SWP. Will. Incidentally, in this case, if the lamp La ₃ is connected to the collector of the transistor Tr ₃ , the count up of the counter CNT ₁ , that is,
The state of channel switching of the heads 15A ₁ to 15A _o and 15B ₁ to 15B _o is displayed.

In order to display the number of recorded tracks when the configuration shown in Figs. 13 and 14 is adopted, for example, as shown in each figure, a display unit DU consisting of a decoder, a driver, and a seven-segment LED for display is used. It may be possible to provide a digital display by providing the outputs 1 to n of the counter _CNT3 to the decoder in the display unit DU, or alternatively, a It would be better to display the number of dots using an LED dot array display. Particularly in this case, it is convenient to display the image within the camera viewfinder.

Further, as a configuration for controlling the end switch SWE, for example, the counter CNT ₃
A transistor Tr _{4 is connected to the n+1st output terminal of the transistor Tr 4} with an electromagnet Mg connected to its collector side as shown in the figure.
It would be better to connect the base of , and when this n+1 output goes high, the electromagnet Mg is energized, thereby opening the end switch SWE. In the embodiment of the present invention, the image signal recording means for recording by switching the recording device on the recording medium is the head 15B or 15'.
The drive means for rotationally driving the recording medium relative to the recording means is a motor _M0 , and the supply means for supplying image signals to the recording means is shown in FIG.
The analog switch ASW in Fig. 12 is used, and there are two modes: a first mode in which image signals for only one screen are recorded even if the recording trigger continues, and an image signal continuously sent to the recording medium as long as the recording trigger continues. The switching means for switching the second mode for recording is the switch 36 shown in FIG. When switching to the second mode, as long as the recording trigger continues, one screen worth of image signals from the supply means is recorded on the recording means at predetermined intervals, and the driving means is constantly rotated. The control means for controlling the drive is the switch shown in FIGS. 7 and 12.
SW3 and counter CNT ₁ , gates AG5, AG6
It was composed of

As detailed above, according to the present invention, with a relatively simple logical configuration, it is possible to record not only one image but also continuous recording to multiple tracks, especially for moving objects. By making it possible to record images in a disassembled photographic manner, you can enjoy unique and interesting image playback, and by improving the functionality of the recording device, it will become possible to use it for a variety of purposes. be. Furthermore, according to the present invention, when the recording trigger is maintained and continuous recording is performed at predetermined intervals, the recording body and the recording medium are always rotated relative to each other, so the configuration is simple. Not only is this possible, but it is also possible to perform stable continuous recording.

Further, as shown in the embodiment, if the recording speed can be switched between at least two speeds during continuous recording, even more unexpected recording effects can be obtained. Furthermore, if it can be combined with a general VTR deck, it will be possible to record moving objects at VTR speed without relying on a recording medium with a limited number of tracks, which will be even more convenient. .

In the embodiments, the imaging-video signal generation-magnetic recording system circuit includes, in particular, the imaging element.
Although a configuration using a CCD image sensor has been shown, it goes without saying that there is no problem in using a conventional image tube such as a videocon as the image sensor.
Also, as for the recording medium, although a magnetic disk is shown in the embodiment, other recording bodies such as a magnetic drum can be easily used by slightly modifying the mechanical part of the camera CA.

[Brief explanation of the drawing]

FIG. 1 is a transparent perspective view of the main parts of a camera incorporating an embodiment of the device of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a cross-sectional view of FIG. 1. −
4 is a plan view of essential parts showing the related structure of the mode select dial and mode select slide shown in FIG. 3, and FIG. 5 is an imaging-video signal applicable to the device of the present invention. A block circuit diagram showing the basic configuration of an example of a generation/magnetic recording system circuit, FIG. 6 is a schematic diagram of a CCD image sensor as a solid-state image sensor employed in the circuit shown in FIG. FIG. 8 is an enlarged perspective view of the main parts showing details of the configuration of a magnetic head suitable for the circuit shown in FIG. 7, and FIG. suitable for the circuit shown,
FIG. 10 is a transparent perspective view of the main part showing the configuration for displaying the number of recorded tracks; FIG. 10 shows the relationship of the output signal to the input signal of the counter for outputting the recording control signal in the circuit shown in FIG. 7; 11 is a timing chart showing the output relationship of the main circuit sections of the circuit shown in FIG. 7 in mode "S" (one image shot);
The figure shows the second configuration of the electric circuit system in the device of the present invention.
FIG. 13 is a circuit diagram showing a specific example of the circuit shown in FIG. 12, and FIG. 14 is a circuit diagram showing a modified example of the circuit shown in FIG. FIG. 3 is a circuit diagram showing the configuration of main parts related to the change. 11... Recording body (magnetic disk), 11c...
Recording section where recording tracks are set, 36, SW ₁ ~
SW ₃ ...Mode switching means (mode select
(dial and interlocking switch), 43... NTSC signal external output jack, 52... NTSC signal generation circuit, 15A; 15A ₁ to 15A _o ... detection head, 15B; 15B ₁ to 15B _o ... recording head,
15';15' ₁ to 15' _o ...Detection-recording head.

Claims (1)

[Scope of Claims] 1. A recording device for recording an image signal that performs recording by switching recording positions on a recording medium, a driving device that rotationally drives the recording medium relative to the recording device, and a device for transmitting image signals to the recording device. A first mode in which image signals for only one screen are recorded even if the recording trigger continues, and a first mode in which image signals are continuously recorded on the recording medium as long as the recording trigger continues. a switching means for switching between two modes; when switching the switching means to the first mode, the recording means records only one screen worth of image signals from the supplying means; when switching the second mode, the switching means and a control means for causing the recording means to record one screen worth of image signals from the supply means at predetermined intervals as long as the recording trigger continues, and for controlling the driving means to always rotate. An image recording device characterized by: