KR960038874A - Voice backup device using DMT FM as voice separator and its control method - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Voice storage and playback system

2. The technical problem to be solved by the invention

This study aims to solve the problem of speech division uncertainty and retrieval speed in retrieving voices backed up to magnetic tape through direct rewinding and rewinding and listening directly.

3. Summary of Solution to Invention

When backing up a voice on magnetic tape, record the user's voice by recording the unique numeric information associated with the user with DTMF tones for a certain time (hundreds of ms) before recording the voice. If you want to search the voice of a specific user backed up on the magnetic tape, you can search the DTMF tones that you recorded together when recording the voice of the user. Therefore, you do not have to listen to the voice directly.

4. Important uses of the invention

It is used to implement a voice backup device that has a clear division of speech and a rapid division of speech.

Description

Voice backup device using DMT FM as voice separator and its control method

As this is a public information case, the full text was not included.

FIG. 3 is a block diagram of the voice classification apparatus according to the present invention, FIG. 4 is a detailed block diagram of the DFM tone detector in FIG. 3, and FIG. 5 is a flowchart showing a search process of the DFM tone detector.

Claims (11)

A voice backup apparatus comprising a voice recording means, a voice reproducing means, and a tape control and driving means, comprising: input means for inputting a DFM tone number to be retrieved, and reproducing the voice according to the input DFM tone number; A search means for retrieving a DMT tone from the audio signal inputted from the unit, and outputting a search success signal, and controlling the respective means to perform recording, normal reproduction, and double speed reproducing operations. And control means for generating a TMP tone search command and for switching the playback speed of the tape control and driving means in response to the search success signal. 3. The apparatus as claimed in claim 2, wherein the input means comprises a keypad composed of a plurality of numeric keys, a display unit for confirming the numeric key input, and a register for storing the numeric key input. 2. The apparatus according to claim 1, wherein said searching means temporarily converts analog / digital converting means for converting an analog signal input from said voice reproducing means into a digital state, and the number of DFTs to be searched and the number of DFTs. A memory means for storing the data, and a buffer means for storing the DFTs to be searched, and are input from the stored DFTs and the analog / digital converting means in response to the search command signal. And a digital signal processor for comparing and analyzing the signals and searching for the DFM tone. 4. The apparatus of claim 3, wherein the digital signal processor outputs a search success signal to fraud control means when the digital signal processor completes the search for the DTMP. 2. The tape of claim 1, wherein the tape is composed of voice recording areas for recording a plurality of voices, respectively, and DTF fields for recording a DFT code between each of the voice recording areas. Characterized in that the device. 6. The apparatus of claim 5, wherein the plurality of voices are voices within 4,000 hertz. A DMP tone table having a DMP tone table and a DTP tone buffer, a voice recording area for recording a plurality of voices, and a DFT tone area for recording a DFT tone code between each voice recording area A method for detecting the DMFT code from a table comprising: a first step of inputting PCM-coded data read from the tape, and the number of digit FM signals to be retrieved from the DTMP buffer; And a third process of repeating the operation of searching for a DFM tone based on the DFM tone table from the PC code by the number of digits of the DFM tone to be retrieved. How to. The method of claim 7, further comprising displaying a message indicating that there is no DTP tone to be detected on the tape when the end of the tape is detected during the DTP tone code search. The method of any one of claims 7 to 8, further comprising generating a search success signal when the search for the DMT code is successful. In a voice backup device having a DTM F tone detection means and a search DTM F tone input means, a method of searching for and outputting a desired voice from a tape having a voice stored therein with a DTM tone code corresponds to a voice to be searched. A first process of inputting a DMT code, a second process of driving the tape at a predetermined speed, a third process of detecting a corresponding DMT code from the tape, and the detected DMT code A fourth step of comparing a code with the searched DMT code, and if the detected DMP code is equal to the input search DMP code, the detected DTP code after the detected DTP code And a fourth step of controlling to reproduce the voice data at a normal speed. The method of claim 10, further comprising displaying a message indicating that there is no corresponding DFT code if the corresponding DFT code is not detected on the tape. ※ Note: The disclosure is based on the initial application.