JPH0724432B2 - Pocket bell additional notification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an additional notification device for a pocket bell, which is attached to a sounding bell and can be used by switching between sound and vibration.

<Prior Art> Generally, a pocket bell has a structure in which a signal of a specific frequency is transmitted from a transmission station of the pocket bell, and when the transmission signal is received, a sound is generated to notify the user, In some cases, it may be better not to notify by sound, such as during an important conversation.

<Problems to be solved by the invention> Therefore, conventionally, a pocket bell that notifies by vibration instead of sound is manufactured, but when the user puts the pocket bell in a bag or the like, no sound is produced. There is a problem that the user cannot recognize the notification.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides an additional notification device for a pocket bell, which is attached to a pocket bell for notifying by sound and allows a user to arbitrarily switch between sound and vibration. , Is configured as follows.

<Means for Solving Problems> That is, the pocket bell's additional notification device of the present invention is used by being inserted into the battery space of the pocket bell which performs sound notification when receiving a calling signal and connected to the battery terminal. An additional alarm device for a pocket bell, a small battery that is connected to the battery terminal of the pocket bell via a power circuit and a cutoff circuit, a current detection circuit that detects current changes in ringing sound in the power circuit, and vibration is generated. And a control circuit that cuts off the cutoff circuit and drives and controls the vibration generator when a detection signal at the time of current change from the current detection circuit is input.

<Action> If you want to receive a call by vibration instead of sound, set the additional alarm device to change the current flowing in the current circuit of the pocket bell when the call signal is received, and the current detection circuit changes this current. To detect. This detection signal is sent to the control circuit, and the control circuit shuts off the shutoff circuit to stop the ringing by the sound of the pocket bell and drives the vibration generator to generate vibration.

<Example> Hereinafter, an example of the present invention is described based on a drawing.

FIG. 1 shows a block diagram of a pocket bell additional alarm device. Reference numeral 1 is a well-known pocket bell circuit for notifying by sound, which is configured to operate the speaker 2 to emit a sound when receiving a radio signal of a specific frequency transmitted from the transmitting station, and stop sound for stopping the notifying sound. A switch 3 is provided.

A pocket bell having such a pocket bell circuit 1 is housed in a case 4 as shown in FIGS. 2 and 3, and generally operates by using an AA type dry battery as a power source, but is added to a space for housing this battery. A notification device is inserted,
It is connected to the battery terminal 21 so that power is supplied to the pocket bell circuit 1 from a small battery (for example, a button battery) of the device.

The additional notification device receives a current detection circuit 11 that detects a current flowing in a power supply circuit 20 for supplying power to the pocket bell 1, a cutoff circuit 12 that shuts off the power supply circuit 20, and a detection signal output from the current detection circuit 11. Further, it comprises a control circuit 15 for controlling the operation of the cutoff circuit 12 and the vibration generator 16, a small battery 13, a vibration stop switch 14, and a timer 22.

The current detection circuit 11 detects an increase in current flowing in the power supply circuit 20 when the pocket bell circuit 1 receives a transmission signal and operates the speaker 2, and for example, a well-known current detection circuit using an operational amplifier is used. It can be used and amplifies a slight change in current and outputs it as a voltage signal. The cutoff circuit 12 is a circuit that is connected to the power supply circuit 20 and cuts off the power supply circuit 20 in response to a command signal from the control circuit 15, and is configured by a transistor switching circuit or the like.

The control circuit 15 includes a vibration stop switch 14 for the circuit of the small battery 13.
When a detection signal of a current increased by a certain amount or more is input from the current detection circuit 11, the cutoff circuit 12 is cut off, and a driving current is supplied to the vibration generator 16 to operate the same. . The timer 22 is connected to the control circuit and counts the time when the vibration generator 16 operates, and the maximum operation time of the vibration generator 16 is set.

The vibration generator 16 is a small motor as shown in FIG. 2 and FIG.
A disc 18 with an eccentric weight, which is composed of a small motor 17, a disc 18 eccentrically attached to the rotary shaft of the small motor and provided with an eccentric weight, and a rubber vibration transmission portion 19 surrounding the small motor 17 and the rotary shaft and the disc 18. By rotating 18, the whole including the small motor 17 is vibrated, and the vibration is transmitted to the vibration transmission unit 19. The rubber vibration transmission portion 19 is mostly housed in the case 4, but one side portion thereof protrudes out of the case 4 so as to contact the user and transmit the vibration.

The additional alarm device configured as described above is inserted into the battery space provided in the case 4 of the pocket bell and attached, and the battery terminal 21 provided on the pocket bell main body side.
The terminals of this device are connected to each other as shown in FIG.

Next, the operation of the additional notification device will be described. First, when calling, when it is desired to notify by vibration, the switch 14 is turned on. When a calling signal is transmitted at a specific frequency from the pocket bell transmitting station, the calling signal is received by the pocket bell circuit 1, and the circuit 1 operates so as to operate the speaker 2. Then the power circuit
The current flowing through 20 increases due to the operation of the speaker 2, this current is detected by the current detection circuit 11, and a high level voltage signal is output to the control circuit 15.

When the control signal 15 is input, it outputs a cutoff signal to the cutoff circuit 12 to cut off the power supply circuit 20, and the power of the pocket bell circuit 1 is turned off. Therefore, the speaker 2 does not ring. At the same time, the control circuit 15 drives the small motor 17 of the vibration generator 16, and the small motor 17 rotationally drives the disk 18 with the eccentric weight to generate vibration, and this vibration is generated by the rubber vibration transmission portion 19. It is transmitted to the user via. At this time, the timer 22 starts counting.

When the user recognizes the call by the vibration of the vibration generator 16, if the vibration stop switch 14 is turned off, the vibration generator 16 is stopped and the sound stop switch 3 is turned off at the same time. On the other hand, when the vibration is generated and the vibration is not stopped even after a lapse of a certain time, the timer 22 performs a timed operation, the control circuit 15 stops the operation of the vibration generator 16 and returns the cutoff circuit 12 to the ON state. To work. As a result, the pocket bell circuit 1 is activated again, the speaker 2 is sounded, and the notification is switched to sound, and the user can recognize the call by switching to the sound even if the user cannot recognize it by the vibration.

In this way, when the pocket bell receives a call signal, the call is first known to the user by vibrating, so that even if a visitor or the like is in the middle of an important conversation,
You won't be disturbed by the ringing tone. When a pocket bell is put in a bag, etc. and the call is not notified to the user due to vibration, it automatically switches to the speaker and makes a call by sound, so the user can recognize the call. .

In addition, when calling by sound is stopped by turning off the sound stop switch 3, calling by vibration is stopped by turning off the vibration stop switch 14, and when you want to receive a call by sound Keep the vibration stop switch 14 off.

<Effects of the Invention> As described above, according to the additional notification device of the pocket bell of the present invention, the pocket bell can be easily installed and used in the battery space of the ready-made pocket bell that is called by sound, and the ready-made pocket bell can be used. The ringing function by vibration can be added to the pocket bell without changing the circuit of. Therefore, if there is an important conversation and it is better not to be called by sound, use it by switching so that it is called by vibration, and if it is better to be called by sound, use one pocket bell like that. It can be switched and used.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a block diagram of an additional informing device, FIG. 2 is a front view including a partial cross section of a pocket bell, and FIG. 3 is a side view of the same. 11 …… current detection circuit, 12 …… break circuit, 13 …… small battery, 15 …… control circuit, 16 …… vibration generator, 20 …… power supply circuit.

Claims (1)

[Claims] 1. An additional alarm device for a pocket bell, which is inserted into a battery space of a pocket bell for making a sound notification when a call signal is received and is used by connecting to a battery terminal. A small battery connected through a power supply circuit and a cutoff circuit, a current detection circuit that detects a change in current when the power supply circuit is activated, a vibration generator that generates vibration, and a current from the current detection circuit. An additional notification device for a pocket bell, comprising: a control circuit that shuts off the shutoff circuit and drives and controls the vibration generator when a change detection signal is input.