JP3001032U - Silence detection answering machine - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Eliminating silent telephone calls and improving the efficiency of semiconductor memory used for message messages from callers. [Structure] A memory unit 2 for sequentially storing a silence state in which a caller does not enter a message for a predetermined time.
2 and the memory section, based on the silence signal detected by the silence detection circuit 23 and this silence detection circuit 23 when the caller does not put a message to the silence occurs for a predetermined time A control unit 40 is provided for outputting a control signal and determining / controlling the semiconductor memory 19 so as not to record a silent signal. By determining the presence or absence of the calling party's message, and controlling the semiconductor memory accordingly, the message is not recorded when there is no message.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an answering machine, and more particularly, to a silence detecting answering machine that prevents a silence from being recorded in a semiconductor memory when a caller cannot enter a message.

[0002]

[Prior art]

 Conventionally, there is an answering machine that can record a caller's message, play back the recorded content later, and listen to the caller's message. An answering machine is currently equipped with a recording method that records a caller's message in a semiconductor memory after sending out a response message recorded in advance on a response tape when a caller receives a call. , The most popular. The main reason for this is that semiconductor memory has the advantages of easier random access of messages and faster access time than tape type. For example, an answering machine as shown in FIG. 3 is generally used for transmitting a message message stored in a semiconductor memory. Reference numeral 10 shown in FIG. 3 is a connection terminal for connecting the answering machine to the office line, and 11 is a line interface between the office line and the telephone device. The line interface 11 includes a hybrid circuit that separates a transmitted voice and a received voice, and a hook circuit that operates on-hook and off-hook of the transmitter / receiver. Reference numeral 12 is a line monitoring unit that constantly monitors the signal sent from the central office switch and sends the signal to the control unit 14 when the information at the time of the arrival is detected. Reference numeral 20 in the figure denotes a microphone for inputting voice when recording a response message (OGM), which is connected to the recording circuit unit 15. The recording circuit section 15 is adapted to switch the received voice of the line interface 11 and the output of the microphone 20. Reference numeral 16 is a reproducing circuit section for amplifying the signal reproduced by the recording / reproducing section 30 and for switching the amplified output to either the speaker or the telephone line. The recording / reproducing unit 30 includes two semiconductor memories, that is, an OGM (response message) 17, an ICM (message of interest) 19 and a tape recording / reproducing device 18. These two memories 17 and 19 are composed of DRAM and A / D and D / A conversion circuits, and recording and reproduction are performed under the control of the control unit 14. The tape device 18 uses a micro cassette or a compact cassette and can record for a long time.

[0003]

[Problems to be solved by the device]

 When using the above-mentioned answering machine, the caller may not send out a message. In this case, silence is recorded in the semiconductor memory. Therefore, when played back, there is no sound and it does not feel good, and the semiconductor memory is also wasted. The present invention has been made to eliminate this inconvenience, and the purpose thereof is to determine whether or not a caller's message is present, and control the semiconductor memory accordingly to control the message. It provides a silence answering machine that can prevent silent calls when there is no voice, eliminate silent calls, and improve the efficiency of semiconductor memory.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and the silence detection answering machine according to claim 1 has a semiconductor memory and a tape recording / reproducing device as a recording medium, and a response message from the semiconductor memory. In addition to transmitting the message, the message from the caller is recorded on the tape, the message is recorded again from the recorded tape to the semiconductor memory, and the message is reproduced from the semiconductor memory. In the above answering machine, a memory section is separately provided for sequentially storing the silence state in which the caller does not enter a message in the semiconductor memory for a predetermined time, and the caller for the memory section. If there is a silent state in which the message does not contain a message for a predetermined time, a silence detection circuit for detecting it and this silence detection circuit A control unit that outputs a control signal based on the silent signal detected by the device and determines / controls the semiconductor memory so that the silent signal is not recorded is provided.

[0005]

[Action]

 According to the silence detection answering machine described in "Claim 1", the caller sends a message to the memory section and the memory section for sequentially storing the silence state in which the caller does not enter a message for a predetermined time. When a silent state occurs in which the caller does not enter a message for a certain period of time, a silence detection circuit for detecting it and a control signal based on the silence signal detected by this silence detection circuit are output to the semiconductor memory. Since a control unit for determining and controlling so that no silent signal is recorded is provided, it is possible to control the semiconductor memory by determining the presence or absence of the message of the caller's message, and controlling it accordingly. When there is no message, it will not be recorded, silent telephones can be eliminated, and the efficiency of semiconductor memory can be improved.

[0006]

【Example】

 An embodiment of a silence detection answering machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a circuit block diagram showing an overall outline of a silence detection answering machine according to the present invention, and FIG. 2 is an explanatory diagram for explaining a signal detection state. The same members and parts as those described in the conventional example are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 1, the silence detection answering machine A is provided with a recording circuit device 31. The recording circuit device 31 includes a recording circuit unit 15, a memory unit 22 including a semiconductor memory, and a silence detecting circuit unit 23. The recording circuit section 15 is adapted to switch between the voice received by the line interface 11 and the output of the microphone 20.

Therefore, when the received voice is switched to, the output is input to the memory unit 22 which is a semiconductor memory. This is to temporarily store the received voice (message message) output in order to determine whether or not there is a caller's message message within a certain time. By this, it is possible to determine whether there is no message or the silent part of the message. The signal stored in the memory for a certain time is sent to the silence detection circuit unit 23. The silence detection circuit section 23 includes an amplifier and a silence detection circuit. The output from the memory section 22 enters the amplifier, and part of it enters the silence detection circuit 23. That is, the silence detection circuit 23 rectifies the received voice (message of interest) and compares the voltages as shown in FIG.

For example, V1 is used when there is a received voice and V0 is used when there is no received voice. This voltage controls the control unit 40 to send a recording command to the ICM 19, which is a semiconductor memory. That is, the recording instruction is sent when the voltage is V1 and the recording instruction is not sent when the voltage is V0.

According to the silence detection answering machine A of this embodiment, the memory section 22 and the memory section 22 for sequentially storing the silence state in which the caller does not enter a message for a predetermined time period. When a silent state in which the caller does not enter a message occurs for a predetermined time, a silent signal detecting circuit 23 for detecting it and a silent signal detected by the silent signal detecting circuit 23 are used as control signals. Is provided and the semiconductor memory ICM19 is provided with a control unit 40 for discriminating and controlling so as not to record a silent signal. Therefore, the presence or absence of a message from the calling party is determined, and the semiconductor By controlling the memory ICM19, it is configured so that it will not be recorded when there is no message required. Therefore, silent telephones are eliminated and the semiconductor Memory efficiency can be improved.

[0010]

[Effect of the present invention]

 As is apparent from the configuration described above, according to the silence detection answering machine A described in "Claim 1", the silence state in which the caller does not enter a message is sequentially stored for a predetermined time. If there is a silent state in which the caller does not put a message to the memory section for a certain period of time, the silence detection circuit for detecting it and the silence signal detected by this silence detection circuit Based on the above, a control unit is provided to determine and control the semiconductor memory so that no silent signal is recorded in the semiconductor memory. By controlling the semiconductor memory with this, it is possible to prevent the message from being recorded when there is no message, eliminate silent telephone calls, and improve the efficiency of the semiconductor memory. The effect of such kill.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing an overall outline of a silence detection answering machine according to the present invention.

FIG. 2 is an explanatory diagram for explaining a signal detection state.

FIG. 3 is a circuit block diagram showing an overall outline of a conventional answering machine.

[Explanation of symbols]

 A ... Silent detection answering machine 10 ... Connection terminal 11 ... Line interface 15 ... Recording circuit section 19 ... Semiconductor memory ICM 20 ... Microphone 21 ... Speaker 22 ... Memory 23: silence detection circuit 31: recording circuit device 40: control unit

Claims (1)

[Scope of utility model registration request] 1. A semiconductor memory and a tape recording / reproducing device are provided on a recording medium, a response message is transmitted from the semiconductor memory, a message from a calling party is recorded on the tape, and the semiconductor memory is recorded from the recorded tape. In the answering machine in which the message message is recorded again and the message message is reproduced from the semiconductor memory, the silent state in which the caller does not enter the message message in the semiconductor memory is sequentially stored for a predetermined time. In order to maintain the above, a memory section provided separately, and a silence detection circuit for detecting a silent state in which a caller does not enter a message to the memory section for a predetermined time, The control signal is output based on the silence signal detected by the silence detection circuit, and the silence signal is not recorded in the semiconductor memory. Silence detector telephone answering device, characterized by comprising a control unit for Uni identification and control.