JPS6374365A - Telephone set with voice memory function - Google Patents

Abstract

PURPOSE:To contrive the recording of only an important conversion judged for the desire of recording during talking carefully by giving a prescribed delay time to a sound signal by a storage means and storing the content of the storage means into a voice memory when a recording switch is depressed. CONSTITUTION:At the talking in telephone set circuit 1, after a talking signal is converted into a signal of digital form, the result is stored in a buffer memory 3. When an important content desired to be recorded exists, the user of the telephone set depresses a recording switch 7. Thus, a readout command signal is outputted from a control circuit 5 to the buffer memory 3 and the sound data is stored in the voice memory 4 sequentially from the data by several tens of seconds before from the present point of time stored in the buffer memory 3. While the recording switch 7 is turned on, the sound signal of the telephone set circuit 1 is retarded via the buffer memory 3 and stored in the memory 4.

Description

[Detailed Description of the Invention] [Summary] By turning on the recording switch, it is possible to record only the necessary parts of the conversation, and at that time, the recording can be performed from a predetermined time earlier than when the playback switch is turned on. A telephone with a voice memo function that allows you to record the contents of calls.

[Industrial application field]

The present invention relates to a telephone having a voice memo function during a call.

As ICs and other circuit components become smaller and more sophisticated, various service functions are added to telephones, resulting in higher performance. Most of these functions execute call processing services and call processing services, and generally there is little processing related to services during a call. An example of this service during a call is a voice memo function.

The voice memo function is useful because if you use a writing utensil to take notes on the content of the call during a phone call, it may take time to write down the call, resulting in longer call times, omission of important information, or recording errors. , a function that automatically records the contents of a call in voice to memory so that the call can proceed smoothly and keep an accurate record.

[Conventional technology]

Conventionally, telephones using a tape recorder or a digital recorder have been known to have a voice memo function.

The method using a tape recorder involves attaching a leakage strong magnetic flux detection coil to the telephone body to pick-amplify the voice of the call and record it on a tape recorder. On the other hand, the method using a digital recorder includes a voice memory inside the phone, converts the call voice from an analog signal to a digital signal, and records the voice in the voice memory while the recording switch is pressed. be.

[Problem that the invention seeks to solve]

The method using a tape recorder usually records the entire conversation, but due to the limitations of the mechanical structure, it is difficult to accurately and intermittently record only the key points of the conversation.

This digital recording method, which replaces the tape recorder, allows you to easily and intermittently record telephone calls while the recording switch is pressed using a control signal that is output by operating the recording switch. , serviceability can be improved. However, in an actual conversation, it is often not possible to judge the importance of the content, that is, to decide whether to leave it as a memo or not, until after the conversation has progressed to a certain extent.

Therefore, if this judgment cannot be made, the entire conversation ends up being recorded, and the features of the digital recording function cannot be fully utilized.

[Means for solving problems]

FIG. 1 is a block diagram of the principle according to the present invention.

In FIG. 1, a telephone equipped with a voice memo function according to the present invention includes a telephone circuit 101 that transmits and receives voice signals via a telephone line, and a telephone circuit 101 that transmits voice signals from the telephone circuit 101 from the present time to a predetermined time. A storage means 102 that sequentially stores audio signals, an audio memory 103 that can store audio signals in the form of digital signals, a recording switch 104, a playback switch 105, and an audio signal stored in the storage means in response to turning on the recording switch 104. When the recording control means 106 causes the memory 103 to store data and the playback switch 105 is turned on, the audio memory 10
3 and reads out the audio signal stored in the telephone circuit 101.
A playback control means 107 is provided for playing back audio.

[For production]

A predetermined delay time is given to the audio signal from the telephone circuit 101 by accumulating it in the accumulating means 102, and when the recording switch 104 is pressed, the recording control means 1
By storing the contents of the storage means 102 in the voice memory 105 under the control of 06, the contents of the call from a predetermined time before the recording switch 104 is pressed can be recorded. While the recording switch 104 is pressed, the contents of the call continue to be recorded in the voice memory 103, and when the recording switch 104 is turned off, recording in the voice memory 103 is finished.

To reproduce the contents of the call, press the reproduction switch 105 and use the reproduction control means 107 to reproduce the contents of the voice memo January 3 on the telephone circuit 1.
This is done by reading 01.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing a telephone equipped with a voice memo function as an embodiment of the present invention. In the figure, 1 is a telephone circuit, 2 is a digital recording circuit, 3 is a buffer memory, and 4 is a telephone circuit.
5 is an audio memory, 5 is a control circuit, 6 is a digital playback circuit, 7 is a recording switch, 8 is a playback switch, and 15 is a telephone line.

A detailed configuration of the telephone circuit 1 is shown in FIG.

In the figure, 10+ to 103 are interlocking hook switches, 11 is a rectifier circuit, 12 is an incoming call control circuit, 13 is an outgoing control circuit,
14 is a call control circuit; 15. , 15□ is a telephone line.

Hook switch 10. - 103 is the 0 call control circuit 14 located at the position shown by the solid line in the diagram in the waiting state (on-hook state) and at the position shown by the broken line in the talking state (off-footer state).
are respectively connected to the digital recording circuit 2 and the digital playback circuit 6 in FIG.

A schematic block configuration of the digital recording circuit 2 is shown in FIG. In FIG. 4, 21 is an input amplifier, 22
is an A/D converter, and 23 is an arithmetic circuit.

The arithmetic circuit 23 is a circuit that performs data compression, etc., and is not necessarily necessary.

A schematic block configuration of the digital reproduction circuit 6 is shown in FIG. 61 is an inverse arithmetic circuit which restores the signal data compressed by the arithmetic circuit 23, 62 is a D/A converter, and 63 is an output amplifier.

The buffer memory 3 is a buffer memory that temporarily stores audio data, and is capable of storing audio over a period of, for example, several tens of seconds, and serves as a so-called delay circuit for audio signals.

The stored data is then output to the audio memory 4 in response to a command from the control circuit 5.

The audio memory 4 is a memory that stores digitized audio data.

The control circuit 5 records only necessary parts of the audio signal from the telephone circuit 1 in the audio memory and reads the audio signal from the audio memory 4 to the telephone circuit 1 in accordance with the operation of the recording switch 7 and the playback switch 8. This is a circuit that controls the following.

The operation of the embodiment device shown in FIG. 2 will be explained below.

First, the recording operation will be explained with reference to the flow chart of FIG. When a telephone call is made by the telephone circuit 1 (step S1), an analog voice signal is transmitted and received via the telephone line 15 and is also input to the digital recording circuit 2. After this audio signal is converted into a digital signal format by the digital recording circuit 2, it is stored in the buffer memory 3 (step S2). The length is set to an appropriate length. The buffer memory 3 is configured not to output its stored data unless it receives a read command signal from the control circuit 5.

If there is important content that the telephone user wants to record as a result of the call, he or she turns on the recording switch 7 (step S3). Then, a read command signal is output from the control circuit 5 to the buffer memory 3, and as a result, the audio data of several tens of excerpts from the current time stored in the buffer memory 3 starts to be sequentially stored in the audio memory 4 (step S4).

While the recording switch 7 is on, the audio signal from the telephone circuit 1 continues to be delayed and stored in the audio memory 4 via the buffer memory 3 (step S5).

When the telephone user considers that it is unnecessary to record the contents of the call, he turns off the recording switch 7 at that point and cancels the recording instruction (step S6). As a result, the read command signal to the buffer memory 3 is released, data output from the buffer memory 3 is cut off, the operation of storing audio data in the audio memory 4 is stopped, and recording is stopped (step S7).
.

In this case, a certain amount of audio will not be recorded for a certain period of time after the recording is canceled, that is, before the delay time in the buffer memory 3, but this period is generally the time when it is determined that the content of the call does not need to be recorded. Because there is, voice memory 4
The parts of the call that require recording will be recorded. By repeating the above operations, only the important details of the call can be stored in the voice memory 4.

Furthermore, under the control of the control circuit 5, all the data stored in the buffer memory 3 at the time of canceling recording are transferred to the audio memory 4.
You can also configure it to stop recording after storing it in
In that case, the audio up to the point at which recording is canceled will be recorded.

Next, the operation for reproducing the audio recorded in the audio memory 4 will be explained using the flowchart shown in FIG. After the end of the conversation, turn on the playback switch 8 (step 5ll).

As a result, a read command signal is issued from the control circuit 5 to the audio memory 4, and the audio data from the audio memory 4 is converted into an analog audio signal by the digital playback circuit 6 and then input to the telephone circuit 1 (step 512), and the audio data is input to the telephone circuit 1 (step 512). circuit l
The user can listen to the content on the speaker or handset (step 513).

Note that during this reproduction, the hook switch of the telephone circuit 1 is configured to be kept in an on-hook state.

Various modifications are possible in carrying out the invention. For example, in the above embodiment, the panzer memory is used for the purpose of delaying the audio signal, but the invention is not limited thereto. Otherwise, it will continue to import audio data of a certain length before the current time, but it will not save it and will always continue to rewrite it to new audio data, even if you make it memorize and save that audio data for the first time when a recording command is issued. good.

〔Effect of the invention〕

According to the present invention, it is possible to carefully examine and record only the important parts of the conversation that are determined to be recorded during a call, and it is possible to take efficient and accurate voice memos.

[Brief explanation of the drawing]

FIG. 1 is a basic block diagram of the present invention, FIG. 2 is a block diagram of a telephone as an embodiment of the present invention, FIG. 3 is a detailed diagram of the telephone circuit in FIG. 2, and FIG. 2 is a schematic block diagram of the digital recording circuit, FIG. 5 is a schematic block diagram of the digital playback circuit in FIG. 2, and FIGS.
The figures are flowcharts for explaining the recording and playback operations of the apparatus shown in FIG. 2, respectively. 1-Telephone circuit 2--Digital recording circuit 3-
- Buffer memory 4 - Audio memory 5 - Control circuit 6 - Digital playback circuit 7 - Recording switch 8 - Playback switch Principle block diagram according to the present invention Fig. 1 Embodiment device of the present invention 2 Figure Example of configuration of telephone circuit: $3 Figure Example of configuration of dinotal recording circuit Figures 4 and 6 Example of configuration of dinotal playback circuit Figure 5 Figure 6

Claims (1)

[Claims] A telephone circuit (1) that transmits and receives voice signals via a telephone line.
01), storage means (102) for sequentially storing audio signals from the telephone circuit from the current time to a point before a predetermined time;
, an audio memory (103) capable of storing the audio signal in a digital signal format; a recording switch (104); a playback switch (105); Recording control means (106) for storing and storing in the voice memory, and reproduction control means (107) for reading the voice signal stored in the voice memory and reproducing the voice by the telephone circuit when the playback switch is turned on. , a telephone with a voice memo function.