JPH01252054A - Code number receiving system for automatic answering telephone set - Google Patents

Abstract

PURPOSE:To relieve a code number not to be received with being diffused by a message, which is sent to a trunk line, by executing the reception of the code number even during the sending of a response message and the recording of a verbal message. CONSTITUTION:When a dial key 13 is pushed while a code number registering key is pushed, a PB signal is inputted from a PB signal generator 14 to a hybrid circuit 2 and a side tone component is inputted from a terminal (b) through a PB signal receiver 11 to a CPU15 and stored as the code number. When there is incoming from a trunk line 1, responding message data are read from a memory 12 by the CPU15 and converted to a sound and the responding message is sent through an amplifier 10, a transformer 8 and the circuit 2 to a calling person. Even during such operation, the PB signal is received. On the other hand, when the verbal message is sent from a external telephone by the calling person, the message is stored in the memory 12 by the CPU15. During this operation, the PB signal, which is sent to the trunk line 1 by the calling person, is read through the receiver 11 to the CPU.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a dial signal set by a combination of two alternating current signals with mutually different PB double signal frequencies necessary for remote control of an answering machine from a central office line. Regarding the method of receiving a PIN number.

[Conventional technology]

It is possible to call an answering machine from an external telephone and send a PB double signal by dialing from the telephone to set or reset the answering machine's automatic answering mode for incoming calls, record, play or delete messages, etc. Answering machines with a remote control function are known, and when such an answering machine is to be remotely controlled, a password is first sent from the telephone by dialing.

Previously, the period during which the above-mentioned PIN number was received by the answering machine was limited to the time period after an incoming call from the central office line was automatically answered and a response message was sent from the answering machine to the central office line (caller). .

(Problems to be Solved by the Invention) In the conventional PIN number reception method described above, at least the first digit of the PIN number is sent to the central office line on which the response message is superimposed, so the PB signal receiver cannot receive the PIN number. If the PB damage signal dialed by the caller and the response message described above are input together, and the level of the response message is large enough to affect the PB damage signal reception operation,
The above PIN code is not received correctly or cannot be received at all. In order to solve this problem, conventional methods have been to set the sending level of response messages to a low level, or to set the distance to an external telephone that can be remotely controlled by 1f! ft.
This was dealt with by limiting the distance (that is, the distance of the central office line) to a certain length or less.

However, according to the above-mentioned conventional reception method, the sound of the response message is lower than the normal voice, making it difficult for the caller to hear the response message, and remote control from a distance becomes impossible. There is a problem.

The present invention aims to solve the above problems.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention enables the reception of a PIN number using a PB defect signal from the central office line while sending/receiving a response message to the central office line and while recording a message message from the central office line. (at least for a certain period of time after the start of the recording).

[For production]

When a caller to an answering machine dials a PIN while listening to an answering message, and the PIN is not accepted by the answering machine.If the PIN is not accepted, the answering message does not stop. It can be recognized by ), the caller can perform remote control by dialing the PIN number again when the answering message ends and recording of the message message starts. That is, if the caller performs a dial operation while recording a message, only the PB defect signal is transmitted to the central office line, so that the password is reliably received by the answering machine. Also, at this time, a PB scratch signal representing the above-mentioned PIN number is recorded in the message memory, but by clearing the contents of the message memory upon reception of the PIN code, the PB scratch signal is recorded in the message memory area. is prevented.

〔Example〕

- FIG. 1 is a block diagram showing the main part (portion related to answering machine function) of an actual hN example of the present invention, and FIG. 2 is a flowchart showing the operation of the example.

As shown in FIG. 1, the answering machine function section of the telephone according to the embodiment of the present invention is referred to hereinafter as voice and PB signal transmitted to and from the central office line 1. ) transmission line 2 wire-4
A hybrid circuit 2 that performs line conversion, a buffer operational amplifier 4 inserted into the transmission line 3 that receives audio, etc. for the office line 1, and a transformer 5 for relaying audio, etc., and a voice, etc., for the office line 1. A buffer operational amplifier 7 and a relay transformer 8 for audio, etc., inserted into the transmission line 6 serving as the sending side of a PB signal receiver 11 that receives the PB signal transmitted through the network, a message memory 12 that records preset response messages and messages from the central office line 1 (caller's message), and A PB signal generator 1 connected to the transmission line 6 and generating a PB flaw signal corresponding to the pressed key of the dial key 13
4. A path line that interconnects the microcomputer (so-called CPU) 15 that collectively controls the entire system including the audio analog/digital conversion function, the PB signal receiver 11, the message memory 12, and the CPU 13. 16. In order to monitor the messages recorded in the message memory 12, the device is constructed of an amplifier 17, a speaker 18, etc. connected to the transmission line 3 on the side.

The operation of the answering machine according to the embodiment will be explained below according to the control flow shown in FIG.

When operating the answering machine, the answering machine is set to an answering mode and a password is set by operating the dial key 13. That is, when a dial button of the dial key 13 is pressed while pressing the PIN number registration key (not shown), a PB flaw signal corresponding to the pressed dial button is sent from the PB signal generator 14, and this is sent to the hybrid via the transmission path 6. Manual power is applied to terminal C of circuit 2. The PB flaw signal input to the terminal C of the hybrid circuit 2 and its sidetone component are output to the terminal of the hybrid circuit 2, and are received by the PB signal receiver 11 via the transmission line 3 (the operational amplifier 4 and the transformer 5). and C
The PU 15 reads the code corresponding to the received PB flaw signal from the PB signal receiver 11 via the pass line 16 and stores it as a password. In the manner described above, for example, a three-digit password is set.

When an incoming call is received from the central office line 1 (step ■), the incoming call is detected by an incoming call detection unit (not shown), and the CPU 15 reads the incoming call and takes a timing of, for example, 9 seconds in step (2), and the incoming call continues even after 9 seconds. If so, the CPU 15 controls an automatic response section (not shown) to automatically respond to the central office line 1 in step (3). The above control from incoming call to automatic answering is the same as that performed by conventional answering machines.

After automatically responding to the central office line 1, the CPU 15 accesses the message memory 12, reads the response message data (digital signal) from the response message storage section of the message memory 12 via the pass line 16, and outputs the response message voice (analog signal). and convert it to the output terminal (A
-OUT) to send a response message (
Step ■). The response message is rcPUl 5 (A
-OUT) -7 amplifier 10 - transformer 8 - operational amplifier 7 -
The caller is reached via the route "hybrid circuit 2 (c-a) - central office line 1".

While the response message is being sent, the CPU 15 monitors whether or not a PB defect signal is received from the central office line 1 by repeating steps ① and ②.

P from office line 1 during monitoring of office line 1 in steps ■ and ■.
When the B defect signal is sent, the PB signal is received by the PB signal receiver 11 through the path of "station line 1 - hybrid circuit 2 (a-b) - operational amplifier 4 - transformer 5 - PB signal receiver 11". , the CPU 15 receives the received P'B from the PB signal receiver 11 via the path line 16.
The signal is read, and in step (2), it is determined whether or not the first digit of the preset personal identification number matches the PB flaw signal. If both of the above match in this judgment, the CPU 15 sends the message memory 12 to the message memory 12 in step (■).
The system stops reading the reception message data from the caller and stops sending the reception message to the caller. After that, C
The PU 15 performs a password reception process to receive the second and subsequent digits of the password sent from the central office line 1 (step
), if all the digits of the received PB flaw signal match the preset password, then the remote control specified by the caller's dial operation is performed. Regarding the designation of remote control, a description thereof will be omitted since it is not directly related to the present invention.

If the first digit of the PB flaw signal password sent from the office line 1 does not match as determined in step (2) above, the control returns to monitoring the office line 1 in steps (2) and (3). If the PB damage signal is received multiple times, the above control is repeated, and if none of the signals match the first digit of the PIN, remote control is performed by, for example, opening station line 1 using a control not shown. make it impossible to do so. Also,
For example, if the second PB scratch signal matches the first digit of the PIN number, the control will proceed to step ■ and onward, but remote control is only possible on station line 1.
All digits of the PB scratch signal sent from the caller must match the PIN number, so even if any of the numbers dialed by the caller matches the first digit of the PIN number, as described above, Confidentiality will not be compromised as a result.

In steps (2) and (2), if the PB signal is not received from the central office line 1 by the end of sending the response message, the CPU 15 determines whether the PIN code can be received during the period (for this period) after the start of recording the message. (Explained later.) Set a timer, for example, a 10 second timer, in step [phase], and in step 0, output the recording start sound to the output terminal (A-OUT) and make a call. Start recording a message from the person (Step @)
. The above-mentioned recording start sound is sent to the central office line 1 via the path of "amplifier 10-1 - lance 8 - operational amplifier 7 - hybrid circuit 2 (ca) J," and the caller listens to the recording start sound and goes to answering machine. When the caller learns that recording has started on the telephone and sends a message from the external telephone, the message will be "Public Line 1 - Hybrid Circuit 2 (a-b)".
) - operational amplifier 4 - transformer 5 - amplifier 9 - CPU 15
(A-IN) is input to the CPU 15 via the J path,
The CPU 15 converts the message into digital data and stores it in the message storage section of the message memory 12 via the pass line 16. The recorded message is thus recorded.

Even after the recording starts in the above step @, the 10 second timer specified in the above step [phase]
During the second period, the CPU 15 monitors whether or not a PB flaw signal is received from the central office line 1 at steps @ and [phase]. This one
When the PB flaw signal is not received for 0 seconds, the CPU
Step 15 monitors whether or not a predetermined recording time has elapsed in step [phase], and when the recording time has elapsed, outputs a recording end sound to the output terminal (A-OUT) in step ■ and performs a series of controls. finish. The above recording end sound is from the step ■
The sound reaches the caller through the same route as the recording start sound was sent, and the caller knows that the recording operation of the message on the answering machine has ended.

If the calling party dials a PIN number on an external telephone in an attempt to perform remote control, and this PIN number is not received by the answering machine during the monitoring in steps ① and ②, the calling party learned that the above-mentioned password was not accepted because the response message did not stop (the control did not move to step ■), and after listening to the recording start sound sent in step 0, Dial the PIN again within 10 seconds.

When the answering machine starts recording the message, the signal that disturbs the PB signal is not transmitted on the central office line 1 like the answering message, so the caller's PIN number dialing operation causes the caller to record the message on the central office line 1. The transmitted PB damage signal is reliably received by the PB signal receiver 11, and the cp
Loaded into u15.

PB damage signal reception after starting recording of message is CP
When the PB flaw signal is detected in U15 by cycling through step @ and step [phase] and the PB flaw signal from central line 1 is received, the control moves from step 0 to step 0, and in step 0, the PB flaw signal is received. It is determined whether or not it matches the first digit of the PB scratch signal password. If the two do not match, monitor the station line 1 by cycling through step [phase], step 0, and step ■ in the same way as the control in steps ■ and ■ above ii! ! Continue.

In the judgment in step ① above, P
B If the first digit of the scratch signal PIN number matches, step O
At this point, the CPU 15 clears the recorded contents up to that point. That is, when the control of the CPU 15 shifts to recording, the input terminal (A-IN) of the CPU 15 is in an active state, so that the PB double signal sent from the central office line 1 is received by the PB signal receiver 11. At the same time, it is also received at the input terminal (A-IN) via the amplifier 9, and is stored in the message storage section of the PB damage signal message memory 12 by the recording operation described above. This PB double signal recording is unnecessary, and if you leave this PB double signal recording as it is, the number of times other messages will be recorded will be reduced, so when the PB double signal is received after starting recording as described above, step I am trying to control this.

P recorded in the message memory 12 as described above.
When the B-times signal is erased, the control of the CPU 15 goes to step ■
Then, all digits of the personal identification number sent to the central office line 1 are received.

In the above embodiment, the PB double signal receivable period after the start of recording is limited to 10 seconds by setting a 10 second timer in the CPU 15, but the length of this receivable period can be set freely. Alternatively, the timer may not be set so that the PB double signal can be received for the entire period during the message recording operation. however,
For example, if a general caller accidentally presses the dial button on the telephone while recording a message, and the pressed dial button happens to match the first digit of the PIN number, the message will be deleted. Because of this,
In order to reduce the chance of encountering such an inconvenience, it is significant to set a timer in the above step.

〔Effect of the invention〕

As explained above, the present invention makes it possible to receive a PIN number not only while sending out a response message but also while recording a message, so that the PIN number can be received when disturbed by the response message being sent to the central office line. This invention relieves the problem of not being able to receive messages, and there is no need to set the level of response messages lower than normal, and since remote control is also possible from a distance, there is no need to limit the area where remote control is possible. has a very remarkable effect. ,

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention, and FIG.
The figure is a flowchart showing the control of this embodiment. [Main symbols] 11...PB signal receiver 12...Message memory 14...PB signal generator 15...CPU

Claims (1)

[Scope of Claims] 1. A system comprising a means for automatically answering incoming calls from a central office line and sending a prerecorded message, a means for receiving a PB signal from the central office line, and a means for storing and verifying a personal identification number; An answering machine that can set or reset the automatic answering mode for incoming calls from the central office line and record, play, or delete messages using the PB signal from the central telephone line, automatically answers incoming calls from the central office line and pre-records them. By making it possible to receive a PIN code using a PB signal from the central office line both when sending a message and when recording a message from the central office line, the period during which messages from the central office line can be recorded is extended. A password receiving system for an answering machine, characterized in that when the password is received, the contents recorded up to that point are erased. 2. Receiving a PIN number for an answering machine according to claim 1, wherein reception of the PIN number during the recordable period for messages from the central office line is limited to a certain period of time from the start of the recordable period. method.