JPH028500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A number of devices are already known for automatically answering and recording telephone calls.

The present application relates to an automatic answer recording device for radio telephones that can be used while the device is left in place when the receiving party is absent in communication between simple radio telephone devices including transceivers.

The purpose of the present invention is to provide a voice synthesis circuit for responding to a call from the other party when one party leaves his/her seat with the power turned on between parties communicating using a simple wireless telephone including a transceiver. Alternatively, the response tape can be activated to respond, and when the other party presses a talk button or the like, the transmission state of the response tape can be changed to the recording state of the reception tape for recording the message. There is a particular thing.

Another object of the present invention is that while the receiving message tape is running, when the other party finishes the call and returns the talk button, the receiving tape automatically stops running, and the tape waits for the next call. It's about letting people know.

The structure and operation of the present application will be explained in detail below. In the figure, A is an automatic answering and recording device for wireless telephones installed at the base, in which _X1 is a transmitting and receiving antenna, and 2 is a high frequency amplification unit that amplifies the radio waves received via the antenna _X1 . , 3 is a detection unit that detects the amplified radio waves, and 4 is maintained in an operating state after cutting off the modulation radio waves from transmitter B.
A holding circuit that is reset when the output of speech synthesis, which will be described later, disappears; 5 is a low-frequency amplification unit that amplifies the audible signal output from the detection unit 3; 6 is a message that reads, for example, "PLEASE LEAVE YOUR MESSAGE"; This is a voice synthesis section that contains the message "please leave a message (please leave your message)" and a beep tone of about 0.5 seconds.When power is supplied to terminal V, the above message is output from the beginning via terminal OUT,
Following the transmission of this message, the above-mentioned beep tone is transmitted, and when the transmission of this beep tone is completed, the terminal BUSY is switched from L to H level. Further, 7 is a modulation unit that modulates the output of the voice synthesis, 8 is a high frequency power unit that amplifies the power of the modulated radio waves, 9 is a recorder for recording the message of the caller, and 10 is the above-mentioned This is a timer circuit of about 1 minute that regulates the maximum operating time of the recorder. The details will be described later, but if the caller disconnects the radio wave within the above one minute, the device can be immediately restored by gates IC-1, IC-2 and flip-flop IC-3. Also 11
is another timer circuit which, when the caller sends a radio wave after sending the above-mentioned response term, acts to prevent device A from being restored even if the sending of the radio wave is delayed. Also, TR1 and TR2 are transistors,
BAT is a battery, Y-1 is a relay and contact
Has y _1-1 . On the other hand, B is the calling party's device, and 10
0 is the main body of the transceiver, X2 is the antenna, 1
02 emits radio waves while the talk switch is pressed. Further, 103 is a power switch.

This device is constructed by combining the above-mentioned parts and has the functions described below. First, when you connect power supply BAT (or eliminator power supply) to device A, capacitor C
The flip-flop IC-3 is reset by the capacitor C2, and the holding circuit 4 is reset by the capacitor C2.
is reset. In this state, the transistor
No bias is applied to TR1 and TR2.
TR2 is off. Therefore, power is not supplied to the voice synthesis section 6, the modulation section 7, the high frequency power section 8, the recorder 9, the low frequency amplification section 5, and the relay Y-1, and the apparatus is in a standby state waiting to receive radio waves. In this state, the power switch 103 on the device B side is turned on, and when the talk switch 102 is pressed for 2 to 3 seconds, radio waves are emitted via the _antenna When the signal is received through the side, the signal is amplified in high frequency by the high frequency amplification section 2, detected by the detection section 3, and the DC component is applied to the set terminal S of the holding circuit 4. This holding circuit 4 is a time constant circuit, a monomulti,
It is composed of a flip-flop, and the time constant circuit is charged to the H level after 2 to 3 seconds using the above DC component. When the caller turns off the talk switch after this charging, that is, after 2 to 3 seconds, the above-mentioned time constant starts discharging, and when the charging voltage drops to the L level, a pulse is generated from the above-mentioned monomulti, This pulse sets the flip-flop in the holding circuit 4. As a result, the terminal of the holding circuit 4 is switched from H level to L level, so transistor TR1 is turned on via resistor R1, and voice synthesis unit 6 and relay Y are turned on.
-1, feeds power to the modulation section 7 and high frequency power section 8;
At this _point , the antenna
A voice-synthesized response message "Your MESSAGE" is transmitted to the calling party's device A via the modulation section 7, high-frequency power section 8, and antenna X1.
The caller can always hear the response message from the beginning. At this time, since the talk switch 102 on the device B side is turned off as described above, it is in a receiving state and can hear the above-mentioned message.
After this response message, a beep tone for about 0.5 seconds is heard, at which point the caller presses the talk switch 102 again and speaks the message. on the other hand,
On the device A side, when the transmission of this beep tone from the voice synthesis section 6 is completed, the terminal BUSY is switched from L level to H level and flip-flop IC-3 is set. Here, the above holding circuit 4 is connected via resistor _R4 .
and turns off the transistor TR1, so the voice synthesis section 6, relay Y-1, modulation section 7,
The power supply to the high frequency power section 8 is cut off. Contact point here
Since _y1-1 returns to the R side, the device returns to the receiving state again. At the same time, the transistor TR2 is turned on by the output () of the flip-flop IC-3 to supply power to the recorder 9 and timer 10. Therefore, the caller's message is sent to the input terminal IN of the recorder 9 via the antenna X1, the high frequency amplification section 2, and the detection section 3.
and is recorded on the recorder.

Now, when IC-3 above is set, timer 1
Connect the terminal of NAND gate IC-1 through approx.
It is designed to change to L after a second. But IC−
As long as the radio wave is received, the terminal of IC-1 remains high, so the terminal of IC-1 continues to be low and has no effect; however, when the caller finishes the business message and turns off the talk switch 102, Then, the emission of radio waves from the antenna X2 stops and the DC component of the detection section 3 disappears, so the terminal of the above IC-1 becomes L and that terminal becomes H, and the flip-flop IC-3 is reset via the terminal of the OR gate IC-2. Since transistor TR2 is turned off, recorder 9
The operation of device B is stopped and device B is restored to the standby state. The above-described operation is repeated for each incoming call, and messages from an unspecified number of callers are accumulated in the recorder 9. In the above explanation, the recorder 9 was driven after the beep tone, but if the diode D1 and resistor R5 are connected as shown by the dotted line, the recorder is driven even while the response message is being sent, and when the response message is heard later, the recorder 9 is driven. It is also possible to arrange for messages for business purposes to be recorded at intervals between messages for business matters. In addition, if the recording time of the above-mentioned business message exceeds 1 minute, the timer 10
It is also possible to forcefully restore the system.

As mentioned above, the present application uses a simple wireless telephone device or a transceiver when one of the parties to the communication is absent (or, due to the range of radio waves, etc., the device is left there and the person himself/herself uses it) (When you are expected to go out to a remote location, relieve your business, and come back again) By setting this device, you can respond to calls made by the other party using a voice synthesizer or response tape. In addition, when the other party sends a message, a receiving tape is run to receive the message, and when the other party turns off the talk button, the receiving tape is stopped and the device is ready for the next standby state. Although its range of use is considerably more limited than that of conventional wired automatic telephone answering and recording devices, its practical value is great.

[Brief explanation of drawings]

The figure is a diagram showing the operating principle of the present invention.

Claims (1)

[Scope of Claims] 1. In a device consisting of a pair of a transmitting wireless telephone and a receiving wireless telephone, in which the transmitting wireless telephone calls the receiving wireless telephone to perform communication, the device is configured to perform communication when there is no person on the receiving wireless telephone side. A voice response device that receives radio waves from the transmitter and operates when the radio waves are cut off, and a voice response device that operates when the radio waves are cut off. means for driving the recorder in a recording state; and means for restoring the receiving radio telephone by turning off the talk switch of the transmitting radio telephone and simultaneously stopping the receiving recorder. Features: Automatic answer recording device for wireless telephones.