KR830002168B1 - Automatic control method of transmission or recording and transmission - Google Patents

Abstract

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Description

Automatic control method of transmission or recording and transmission

1 is a block diagram showing the principle of the automatic control method of transmission or recording according to the present invention.

2 and 3 are likewise block diagrams representing different principles.

4 and 5 are block diagrams showing two examples of an automatic control method of transmission and reception according to the present invention.

6 is a partial sectional perspective view showing an example of a specific configuration of an automatic control method of transmission according to the present invention.

7 and 8 are a perspective view of one part and a perspective view showing three examples of the specific configuration of the automatic control method of transmission and reception according to the present invention.

9 is a cross-sectional view of the ear microphone used in FIG.

FIG. 11 is a partial cross-sectional perspective view of the earring case connection type ear microphone used in FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic control method of transmission or recording and transmission / reception in which an apparatus for transmitting or listening to a vibration pick-up type ear microphone and a transmission / reception apparatus for controlling switching of transmission or recording and transmission / reception.

More specifically, the present invention relates to an automatic control method such as a transmission such that the shock vibration other than the bone motorized voice signal is used as a control signal and the switching control of transmission or recording and transmission and reception without malfunction is performed.

Vibration pick-up microphones that pick up bone conduction speech signals (vibrations, hereinafter) that are transmitted to the ear canal wall, the mammary gland projections, the forehead, and the throat. By inputting into a normal transmission or recording processing device, transmission by wireless or wired or recording processing can be performed. In addition, a transmission and reception device for transmitting and receiving by wireless or wired by combining the vibration pickup microphone and speaker with a conventional transceiver is also known.

The transmission device using the vibration pick-up microphone and the like is most suitable for use under high noise because the microphone has a characteristic that vibration sound is well captured, but airway sound is difficult to be captured. In addition, the microphone is mounted on the ear canal, so it can transmit while continuing to work with both hands.

A technology that connects a vibration pick-up microphone having such characteristics to a speaker and connects it to a wireless transceiver such as bullfighting, way radio, etc. Voice start control system that automatically switches between transmission and reception by means of automatic (automatic control system that switches to transmission by voice signal of speech sound using voice control transmitter, etc., and when there is no voice signal) ^. Etc. are known.

In addition, the following technology is known as an improvement method of the audio start control method. That is, a control system such as an improved voice system which adopts a voice frequency division method for the output of the speaker and the output of the microphone, and then inputs the microphone output to the voice start controller and performs automatic switching of transmission and reception by speech.

However, these conventional techniques have seen the following drawbacks, respectively. First of all, since the press torque method is a handover switching technique by a manual switch, it is necessary to use at least one hand every time the conversion operation, and thus it is impossible to engage in two-hand operation while transmitting and receiving.

Next, since the voice start control method is a technology for automatically controlling transmission and reception by a voice signal of speech, it is possible to engage in two-handed operations while transmitting and receiving.

(1) If a speaker for sign language is arranged in close proximity to a microphone, this speaker output is input to the microphone, causing a malfunction in which the transmitting circuit converts into dogs even when there is no talker's voice.

(2) When used under high noise), for example, under 95dB of noise, this extraneous noise may enter the microphone and cause a malfunction such that the transmission is opened.

(3) In this technology, the voice of the microphone holder (transmitter and receiver) is controlled by the voice start controller, and when there is no control signal output by this voice, the transmission is automatically stopped and switched to the reception state. If the sender breathes in the middle of the transmission, or devises to select the next word, the speech will disappear. Therefore, there is a fear that the sender will stop the transmission and cause a misunderstanding that the recipient has stopped the transmission.

(4) The phenomenon that the first word of the first word of the speech comes out because it is converted into transmission by the speech, that is, the first of the speech. If the sound starts with a consonant called "car", for example, only a vowel called "ah" may be transmitted, resulting in opaque transmission.

(5) Even when the sender speaks with the neighboring third party and not with the receiver, there is a drawback that the automatic controller operates to switch to the transmission and the contents are heard by the receiver because there is a speech.

Therefore, the microphone's wearer (sender) needs to remove the microphone when talking to a third party who is not the receiver.

The above (1)-(5) were faults or inconveniences of the conventional voice start control system.

Next, the improved voice start control method is a technique in which the shortcomings of (1) can be solved by adopting a frequency division method between the speaker output and the microphone output. In other words, this improved technology uses a high-pass filter to pass the received signal input to the loudspeaker in the band of 300-5000 Hz in the method of operating the voice start controller by the bone conduction voice signal of the speech sound. Therefore, through the low pass filter which removes a received signal below a specific frequency (300 Hz) and removes a component above the specific frequency (300 Hz) from the microphone output (output of a bone conduction audio signal). Since the voice start controller is operated by the output of, the defect of the above (1) can be eliminated. However, even with this improvement technique, the drawbacks of (2)-(5) are not eliminated at all.

That is, since this technique also uses a voice signal as a fracture signal of a microphone wearer, the voice signal is used as a control signal for handover, it is evident that there are disadvantages or inconveniences in (2) to (5) above.

On the other hand, the technique of controlling transmission-transmission stop in the apparatus for transmitting the output of the vibration pick-up microphone has the same drawbacks as in the case of the press-torque method, and also in the case of the voice start control method and the improved method. The shortcomings of (2)-(5) can be seen.

(In this case, switching between sending and receiving stops instead of switching between sending and receiving.)

In addition, in the apparatus for recording the output of the vibration pick-up microphone, the shortcomings of (2) to (5) can be seen also in the technique of controlling the recording-recording stop as in the above-described switching switching technique. Transmit-to-receive conversion, not switching between transmission and transmission stop, but switching between recording and recording stop.)

Thus, the first object of the present invention is to clarify a novel automatic transmission and reception method that can solve all the drawbacks and inconveniences of (1)-(5).

A second object of the present invention is to clarify a novel automatic control method of transmission or recording that can solve all the disadvantages and inconveniences of (2)-(5).

Other objects of the present invention will become apparent by the following description of the specification.

EMBODIMENT OF THE INVENTION Hereinafter, this invention which achieves the said objective is demonstrated.

First, the transmission or recording control method of the present invention will be described. FIG. 1, which is a principle diagram, shows a case of opening and closing a main circuit for transmission or recording by a control signal, and FIG. 2 shows a case where an input of an audio signal to the main circuit is turned on or off by a control signal. It indicates a case.

At an angle (1), the vibration pickup type microphone picks up a bone conduction voice signal transmitted to the external ear canal wall, the mammary projection, the front forehead or the throat, and converts it into an electrical signal for output. (2) the main circuit for amplifying the output of the microphone 1 by the amplifier 3 and transmitting or recording the signal; (2) the on / off opening and closing the main circuit 4 in accordance with the input of the control signal; The off switching circuit is displayed.

The main circuit 2, the amplifier 3, and the switching circuit 4 are all included when using a transmission or recording apparatus, which is called a conventional radio transmitter or wired transmitter such as FM radio or a recorder.) In Fig. 2 showing another principle diagram, reference numeral 4A denotes a switching circuit (switch) for turning on and off the input of the audio signal from the microphone 1 to the main circuit 2, When this switch 4A is on, the main circuit 2 is opened. When this switch 4A is off, the main circuit 2 is closed.

In the present invention, the shock vibration other than the voice signal generated by the wearer himself of the microphone 1 as a control signal for opening and closing the main circuit 2 and transferred to the microphone 1 via his bone tissue. Using is one of its features. One of the other features of the present invention is to switch between transmission-transmission stop or recording-recording stop alternately according to the input order of the microphone 1 of this control signal.

Therefore, in the present invention, the output of the microphone 1 is, for example, 200 Hz or less (preferably a low pass filter through a frequency of 130 Hz or less, or, for example, within a range of 50-200 Hz (preferably 80-130 Hz). After passing through a low pass or band pass filter 5, such as a band pass filter through a particular frequency band, this output is inputted to an automatic switching controller 6 for switching the switching circuit 4 or 4A to operate. To enter.

In order to operate the automatic switching controller 6 by only the control signal used in the present invention, a specific low pass or band pass filter 5 is used as described above, and as shown in FIG. Another control vibration pickup type microphone 1A for picking up a frequency band (200 Hz or less, or a specific frequency band within a range of 50-200 Hz) to be a signal may be provided, and this output may be input to the automatic switching controller 6.

That is, one of the other features of the present invention is to use the vibration pickup type microphone 1 or 1A as a pickup means for the control signal.

The impact vibration as a control signal used in the present invention is generated by, for example, impacting the teeth of the upper and lower jaws while the wearer of the microphone 1 attaches the jaw.

The shock vibration generated in this way is about 20 dB difference in the frequency band below 200 Hz, compared to the bone conduction voice signal by the voice of the docphone wearer. Therefore, the bone conduction voice signal by the speech sound is automatically switched as a control signal. There is no fear of operating the controller 6, and since the vibration caused by extraterrestrial noise is also lower than the shock vibration, the vibration of the wall or the like, in addition to the extraneous noise, is automatically controlled as the control signal. There is no fear to operate. That is, in the present invention, such an effect can be obtained by the characteristics of the filter 5

The specific structure of the automatic control system of transmission which concerns on this invention with the said structure is as shown in FIG. 6, for example.

The embodiment shown in FIG. 6 uses the ear-microphone that picks up the bone conduction voice signal from the ear canal wall as the microphone 1 as the transmitter main body P ₁ , and uses a portable radio transmitter such as a conventional FM radio. In this case, the output terminal of the microphone ₁ is connected to the microphone input terminal of the transmitter main body P ₁ , and the output terminal of the automatic switching controller 6 belongs to the switch input terminal of the main body P ₁ . The specific structure of the principle diagram shown in the said FIG. 1 is shown.

In detail with respect to this embodiment, the ear-microphone 1 is inserted into and fixed in the ear canal, and the microphone main body 1a (for example, metal or hard plastic material such as aluminum) that contacts the ear canal wall and transmits bone conduction voice signals. And a vibrating pick-up element 1b such as a piezoelectric element that vibrates acceleratingly upon receipt of the vibration of the microphone main body 1 and converts a bone conduction voice signal into an electrical signal. ), A peak cut member 1c 'of an audio signal composed of a damper member such as rubber, a support member 1c for supporting the pick-up element, and a positive electrode plate 1d and a negative electrode plate of the pick-up element 1b ( 1e) and lead wire 1f. On the other hand, the portable transmitter (p ₁ ) has an amplifier (3), a transmission main circuit (2), a switching circuit (4), a battery power supply (11), etc., and also includes an antenna (12), a power switch (13), a volume ( 14) and a control unit c including a filter 5 and a controller 6 are connected.

The operation of the automatic control method of transmission according to the present invention having the above configuration is as follows.

When the power switch 13 is turned on, and the caller (microphone wearer) first shocks this and then shocks it and generates shock vibration (hereinafter referred to as a first control signal) as a control signal, the first control signal Is picked up by the microphone 1 and input to the low pass or band pass filter 5 through the amplifier 3 and the controller 6 is operated by the selected output by the filter 5, (4) is turned on, and the transmission main circuit 2 is opened. Thus, when the microphone speaker makes a speech, the speech is picked up by the microphone 1 as a bone conduction speech signal, converted into an electrical signal, outputted, amplified by the amplifier 3, and then transmitted to the transmission main circuit 2. Will be sent to the outside.

Next, when the microphone holder wants to stop the transmission, it shocks again and generates a shock vibration (hereinafter referred to as a second control signal). In other words, the second word signal is the same as the first control signal, and operates the controller 6 to automatically switch the switching circuit 4 to the off state. It is in a state.

In this state, the operator speaks to the third party. Moreover, even if the external noise is severe, the transmission main circuit 2 does not become open. In other words, the controller 6 does not operate unless the first or second control signal is input, and the transmission main circuit 2 is provided from the first control signal input until the second control signal is input. Will remain open. When the wearer wants to transmit again, it makes a shock with this. It is sufficient to generate the first control signal. In contrast to the above, the circuit is always set to the transmission state, and switching to the transmission stop state by the input of the first control signal is also possible.

Although the automatic control method of transmission according to the present invention has been described above, the same specific embodiment as in the case of the automatic control method of recording according to the present invention can be implemented. In this case, the main circuit 2 for recording the output of the microphone 1 and the switching circuit 4 for opening and closing the main circuit 2 are replaced by changing the transmitter main body P ₁ in the above embodiment. You can use the usual recorder with. In this case as well, the recording-recording stop is automatically controlled in the same manner as in the above embodiment by the first and second control signals due to the shock and vibration of the present invention.

Next, an automatic control method of transmission and reception according to the present invention will be described.

In FIGS. 4 and 5. A denotes a transmission system, and numerals 1 through 5 denote the same members as those of the automatic control system for transmission or recording described above with reference to FIGS. The automatic switching controller indicated by the symbol 6 'performs almost the same operation as the automatic switching controller indicated by the symbol (6), but in this case, it is not automatic switching of transmission-transmission stop or melted-recording stop. In this case, automatic switching of transmission and reception is performed.

4 and 5, (B) shows a receiving system combined with a transmitting system A to constitute a transceiver P ₂ , and (7) receives receiving external transmission signals. A circuit (8) shows an amplifier for amplifying its electrical signal output, (9) shows a hand-transmitting circuit, and (10) an airway-type speaker (sound pressure) for converting a received electric signal into sound waves. It includes type earphone.) Or bone conduction type speaker which converts received electric signal into mechanical vibration and conducts bone conduction.

In the present invention, as shown in FIG. 5, the switching circuit 9A turns on and off the inputs to the transmission main circuit 2 of the audio signal from the microphone 1 by the automatic switching controller 6 '. And a switching circuit 9B for turning on and off the reception signal output to the speaker 10 of the reception main circuit 7 so that switching control can be performed so that the other side is turned off when either is on. (Corresponds to the principle diagram shown in FIG. 2 above)

In the present invention, as shown in the principle diagram shown in FIG. 3, the reception system A may be replaced with the use of the filter 5 by using the control vibration pick-up microphone 1A.

Representative examples of the specific composition of the transmission system A and the reception system B in the present invention are as follows.

[a] As shown in FIG. 7, a microphone 1 of a transmission system is inserted into the ear canal and mounted therein, and a vibration pick-up type ear-microphone picks up a bone conduction voice signal through the ear canal wall (hereafter simply an ear-arm). The transceiver of the structure in which the airway type speaker 10 is provided in an a microphone.

[b] The airway-type speaker is held in the head of a headphone, a helmet such as a helmet (indicated by reference numeral 18 in FIG. 7), the string portion of the glasses, and the outer ear of the back of the angled light. It is attached to or built-in the earring case (members of reference numeral 15 shown in FIGS. 10 and 11), and it is transmitted / received in a configuration that listens to a receiving voice from the same ear or the other ear with the ear microphone attached thereto. Device.

[c] As shown in FIG. 10 and FIG. 11, the speaker described in [b] is a sound pressure speaker 10, and the output of the sound pressure speaker 10 is the sound pipe (16). (Transmitting / receiving device having a configuration introduced into the microphone 1 by means of an elastic tube such as rubber or synthetic resin).

[d] A structure in which the outer ear with the ear microphone 1 is covered with an ear muff, the air muff or bone conduction speaker 10 is embedded in the ear muff, and the ear microphone 1 is connected to the ear muff. Transceiver.

[e] Ear microphones fitted with u-shaped bands or ear muffs used in the head to attach a microphone (1) to one ear and an airway or bone conduction speaker (10) to the other ear (1) And a speaker with the speaker 10 attached thereto.

[f] As shown in Figs. 8 and 9, an airway type speaker 10 is incorporated in a portable radio transceiver, and the output sound of the speaker 10 is produced. Transmitting and receiving device configured to listen to a received voice by connecting the incense to the ear microphone by the sound pipe (16).

[g] The microphone of the transmission system is a vibration pick-up microphone other than the ear microphone, and is used by being fixed to the guiding protrusion, the front forehead, or the rear end by a band or the like, and a sound pressure type earphone in which the speaker is mounted on the outer ear. Transceiver.

In Figs. 9 and 11, reference numeral 17 denotes a sound hole.

Application of the automatic control method of transmission and reception according to the present invention having the above configuration is as follows.

The transceiver (operator of the ear microphone 1) first. When this is caused to shock and shock shock (first control signal) is generated, the first control signal is picked up by the microphone (1) and its output is amplified by the amplifier (3) and the toe pass or band Since it is selected by the packet filter 5 and inputs to the controller 6 and activates it, the water transmission / reception circuit 9 is automatically switched to the reception-transmission state.

There, when the transceiver speaks for transmission, the microphone 1 picks up the bone conduction voice signal by the speech and transmits it to the outside via the amplifier 3 from the transmission main circuit 2 wirelessly or by wire. At this time, since the receiving main circuit 7 is in a closed state, the speaker 10 does not output it.

Next time the transceiver tries to receive it again, it is "윽" again and when it is shocked, the shock vibration (the second control signal is generated. In other words, the second control signal is input to the microphone 1 similarly to the first control signal. Since the output is inputted to the filter 5 through the amplifier 3, and the output is inputted to the controller 6 ', the transmission and reception state is transmitted and received by the output of this controller 6'. The circuit 9 is automatically switched.In this state, even if the transceiver talks with a third party, the extraneous noise is severe and the handover switching circuit 9 is switched.

In addition, the transmission switching circuit 9 or 9A, 9B used in the present invention includes a transistor switching circuit, a mechanical relay switch, a semiconductor relay switch circuit using a combination of transistors, and the like. And the receiving main circuit 7 does not enter the open state or the closed state at the same time.

In the present invention, the circuit is always set to the transmission state and can be designed to be switched to the reception state by the first control signal.

In addition, the automatic switching controllers 6 and 6 'used in the present invention are known for use in radio, audio and television circuits, and are made of semiconductors (for example, manufactured by National Semiconductor, Inc., LM 170. LM270, LM370). Type) and flip-flop circuits (flip, flop path).

In the present invention, the microphone wearer sees the movement of the miters indicating the sensitivity of the transmission, recording or reception, which is attached to the normal transmitter recorder or the transceiver, so as to determine whether transmission, transmission stop, recording, recording stop, Alternatively, the status of transmission or reception can be known, but a lamp or the like which displays these statuses may be provided separately from this.

Since the automatic control method of transmission or recording according to the present invention has the above configuration and operation, it is possible to eliminate the disadvantages of the conventional voice start control method of (2)-(5), especially in an environment with a high noise level of 95 dB or more. Even when used under the conditions, the transmission or recording main circuit is not automatically switched to either opening or closing unless the control signal made by the shock vibration is inputted, and the malfunction can be effectively prevented. The effect as an automatic control method of transmission or recording used under high noise is remarkable.

In addition, since the automatic control method of transmission and reception according to the present invention has the above configuration and operation, it is possible to eliminate all the disadvantages of the conventional voice start control method of (1)-(5), and in particular, the transmission or recording automatic control method. As described above, the effect as an automatic control method of transmission and reception used under high noise while engaged in two-hand operation is remarkable.

Claims (1)

In a transmission and reception device which picks up and transmits a bone conduction voice signal by vibrating pick-up type mypyrophone 1 and listens to a reception sound by the speaker 10, the microphone 1 wearer himself / herself Is generated and is transmitted to the microphone 1 or other control vibration pick-up microphone 1A via its own bone tissue as a shock signal other than an audio signal to be picked up, and according to the order of input of this control signal. An automatic control method of transmission and reception, characterized by alternately switching transmission and reception.

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