JPH0133066B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an answering machine having a remote control function, in which a digitized remote controller is sent from a remote location to the answering machine via a central office line in order to know the contents of a message recorded while the user is away. The present invention relates to a telephone device having a function of receiving signals (hereinafter referred to as remote control signals).

Possible timings for receiving the remote control signal as described above include when sending a response message and when reproducing a message using the remote control. There was a drawback that the reception level of the answering machine differed greatly from the remote control signal, and the remote control signal was canceled by the message, and the answering machine could not enter the remote control state even if a remote control signal was received.

The present invention aims to eliminate such conventional drawbacks, and when a remote control signal arrives while there is sound being played back from a tape, the gate of the recording/playback amplifier is turned on after receiving one cycle of the remote control signal. The present invention aims to provide an answering machine which is configured to close the telephone, stop the playback sound from the tape, and easily receive a remote control signal, thereby putting the remote control device into a remote control state.

Hereinafter, drawings showing embodiments of the present application will be described.

Fig. 1 is a block diagram showing a transmission/reception system including an answering machine, in which 1 is a remote control signal oscillator, 2 is a telephone at the destination, 3 is a telephone line, 4 is a telephone office, 5 is an answering machine, and 6 is the telephone. be.

Figure 2 is a block diagram of an answering machine, where 7 is a central line terminal, 8 indicated by a dotted line is a hybrid circuit with specific frequency characteristics, 8-1 is a resistor, 8-2 is a DC blocking capacitor, 8-3 is a hybrid transformer, 8-4, 8-5, 8-6 are resistors, 8-7 is a capacitor, 9 is a contact of Y1 relay 24 which will be described later, 10 is a central line transformer, 11 and 14 are Y2 relay 25 which will be described later. 12 is a recording and reproducing amplifier for the response message tape 16 and the business message tape 19, which will be described later; 13 and 17 are contacts for the Y3 relay 26, which will be described later; 15 is a response for recording and reproducing the response message tape 16, which will be described later. 16 is a response message tape; 18 is a message head for recording and reproducing a message tape 19 to be described later; 19 is a message message tape; 20 is connected to the recording/reproducing amplifier 12, and the signal path of the amplifier The gate circuit is composed of transistors and the like that open and close the circuit, and closes the signal path of the amplifier 12 in response to a gate signal from a gate control means, which will be described later. Reference numeral 21 denotes a remote control signal amplification circuit 22 that amplifies the remote control signal from the hybrid circuit 8 mentioned above.
is a waveform shaping circuit that shapes the waveform of the remote control signal amplified by the remote control signal amplification circuit 21 described above;
Reference numeral 23 denotes a bell signal receiving circuit that receives the bell signal coming from the above-mentioned office line terminal 7, 24 indicates a Y1 relay that operates when the above-mentioned bell signal receiving circuit 23 is activated by the bell signal from the above-mentioned office line terminal 7, and 25 26 is a Y2 relay that switches when recording a message from the above-mentioned office line terminal 7, and 26 is a remote control signal amplification circuit 21 and a waveform shaping circuit 22 that are switched by the remote control signal from the above-mentioned office line terminal 7. 27 is a message tape drive circuit that drives and controls the message tape 19 described above; 28 is a response tape drive circuit that drives and controls the response message tape 16;
29 inputs and outputs the various signals mentioned above, and will be described later.
This is a buffer circuit that transfers data to and from the CPU 30. 30 is a central processing unit (microprocessor,
Based on pre-stored program data, the CPU (hereinafter referred to as CPU) blocks the station line when receiving a bell signal,
Performs control processing for sending response messages and recording message messages. In addition, the CPU 30 compares the code of the remote control signal sent from the remote control signal receiving means consisting of the hybrid transformer 8-3, the remote control signal amplifier circuit 21, and the waveform shaping circuit 22 with a pre-stored code, and determines the specific remote control signal. When the specific remote control signal is confirmed, a gate signal is output to the gate circuit 20 to close the gate, thereby serving as remote control signal confirmation means and gate control means. 31 is a program memory that stores the operating order (hereinafter referred to as ROM); 32 is a remote control signal determination program storage circuit that determines whether the signal is a remote control signal; and 33 is a temporary storage for the results of the arithmetic processing performed by the CPU 30 described above. 33-1 is a digit capture area for capturing each digit of the remote control signal, and 33-2 is a digit comparison area for comparing with each digit in the digit capture area 33-1.

The operation of the present invention configured as above will be explained.

When a bell signal arrives from the office line terminal 7, the signal is received by the bell signal receiving circuit 23 and input to the buffer circuit 29. The signal input to the buffer circuit 29 is processed by the CPU 30 to operate the Y1 relay 24. Due to the operation of the Y1 relay 24, the contact 9 is switched as shown, and the office line terminal 7 is closed to the office line transformer 10 side. When the central office line terminal 7 is blocked, the CPU 30 operates the response tape drive circuit 28 via the buffer circuit 29 to run the response message tape 16, so that the response message recorded in advance is played back from the response head 15. After being amplified by the recording and reproducing amplifier 12, it is sent to the office line terminal 7 through the office line transformer 10. When the response message ends, CPU30
recognizes this and operates the Y2 relay 25 via the buffer circuit 29. Furthermore, the CPU 30 operates the business tape drive circuit 27 to run the business message tape 19, automatically entering the recording state, and the caller speaks the business according to the instructions of the response message, and the content is recorded as the business message. Recorded on tape 19.

Next, in the hybrid circuit 8 configured so that matching can be achieved at a specific frequency when there is an output to the recording/reproducing amplifier 12 while the response message is being sent or when the business message is being reproduced,
In the hybrid transformer 8-3 in the circuit,
The sound from the recording/playback amplifier 12 is suppressed by the hybrid effect. Here, when a remote control signal arrives from the office line terminal 7, the remote control signal is transmitted to the remote control signal amplification circuit 21 via the hybrid transformer 8-3 because the sound from the recording/reproducing amplifier 12 is suppressed as described above. The signal is inputted into the buffer circuit 29, subjected to waveform shaping by the waveform shaping circuit 22, and inputted to the buffer circuit 29.

The CPU 30 stores each digit of the remote control signal in the digit capture area 33-1 in the RAM 33 under the control of the remote control signal determination program storage circuit 32. After the CPU 30 has captured one cycle of this remote control signal, the RAM 3
3, the control terminal of the gate circuit 20 is controlled via the buffer circuit 29. As a result, the gate circuit 20 is closed, the output from the recording/reproducing amplifier 12 is stopped, and the remote control signal from the second cycle can be reliably received.

Next, when the second period of the remote control signal arrives, 1
Similarly to the cycle, the CPU 30 stores each digit of the remote control signal in the digit comparison area 33-2 in the RAM 33 under the control of the remote control signal determination program storage circuit 32.

When the CPU 30 finishes capturing two cycles of the remote control signal, the CPU 30 compares the codes in the digit capture area 33-1 and the digit comparison area 33-2 in the RAM 33 where the previously captured digit signal is stored, and compares the codes in the digit comparison area 33-2. determine whether the

Additionally, if you receive this remote control signal multiple times,
If the CPU 30 repeats the above-described determination and determines that the codes are the same, it restores the Y2 relay 25 and operates the Y3 relay 26 via the buffer circuit 29. Y2 relay 25 is restored, Y3 relay 26
When the message tape 19 is operated, the message tape 19 is put into a playback state.

As is clear from the above explanation, in the present invention, when a remote control signal arrives while the recording/reproducing amplifier is outputting, such as when a response message is being sent or a message is being played back, the remote control signal confirmation means detects a specific remote control signal. When one period of code is confirmed, the gate circuit is closed, thereby
Since the contents of the response message or business message are not sent to the office line terminal via the office line transformer, the remote control signal is not canceled by the message signal and the remote control signal can be reliably received. is big.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a block diagram showing a transmission/reception system including an answering machine, and FIG. 2 is a block diagram of the answering machine. DESCRIPTION OF SYMBOLS 1... Remote control signal oscillator, 2... Telephone at the destination, 3... Office line, 4... Telephone office, 5... Answering machine, 6... Telephone, 7... Office line terminal, 8...
Hybrid circuit, 9...y1 contact, 10...office line transformer, 11...y2 contact, 12...recording/playback amplifier, 13...y3 contact, 14...y2 contact,
15...Response head, 16...Response message tape, 17...Y3 contact, 18...Message head,
19...Tape for business message, 20...Gate circuit, 21...Remote control signal amplification circuit, 22...
... Waveform shaping circuit, 23 ... Bell signal receiving circuit, 2
4...Y1 relay, 25...Y2 relay, 26...
Y3 relay, 27...Tape drive circuit, 28
... Response tape drive circuit, 29 ... Buffer circuit, 30 ... CPU, 31 ... ROM, 32 ... Remote control signal judgment program storage circuit, 33 ...
RAM.

Claims (1)

[Scope of Claims] 1. A function of transmitting a pre-prepared response message to the office line upon receiving a bell signal from the office line, and recording a business message from the caller after the response message is completed; An answering machine having remote control signal receiving means for receiving a plurality of cycles of remote control signals sent from a remote location through a central office line, and when the remote control signal receiving means receives a remote control signal, the answering machine reproduces the business message and sends it to the central office line. In the telephone device, the remote control signal confirmation means compares the code of the remote control signal received by the remote control signal receiving means with a code stored in advance to confirm a specific remote control signal; and the remote control signal confirmation means for reproducing the response message and the business message. a gate circuit that is connected to a regenerative amplifier and opens and closes a signal path of the amplifier; and when the remote control signal confirmation means confirms a code for one cycle of a specific remote control signal, a gate signal is provided to close the gate circuit. An answering machine comprising gate control means for sending data to a gate circuit.