Recording/reproducing apparatus

• US 4,698,776 A
• Filed: 05/23/1984
• Issued: 10/06/1987
• Est. Priority Date: 05/30/1983
• Status: Expired due to Term

• Current Assignee: TRIO Kabushiki Kaisha
• Original Assignee: Kabushiki Kaisha Kenwood (JVC Kenwood Corporation)
• Inventors: Shibata, Izumi
• Primary Examiner(s): Kemeny, E. S. Matt
• Application Number:
  US06/613,173
• Time in Patent Office: 1,231 Days
• Field of Search: 364/513.5, 381/32, 381/46, 381/36, 365/45
• US Class Current: 704/201
• CPC Class Codes: G09B 19/06 Foreign languages with audible presentation of material to be studied G09B5/04
• CPC Class Codes: G10L 19/00 Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis in musical instruments G10H

Abstract

There is provided an apparatus which automatically records and reproduces. The digital signal based on the acoustic signal is stored in memory means due to the operation of write control means in response to the recording instruction. When the recording is not instructed, the digital signal stored is read out due to the operation of readout control means, and the acoustic signal is reproduced from this digital signal.

Claims

1. Speech recording/reproducing apparatus comprising:

A/D converter means for converting an input analog speech signal into a digital signal;

a read/write semiconductor digital memory for storing the digital signal from said A/D converter means;

D/A converter means for converting digital signal read out from said memory to reproduce the speech signal;

detection means for detecting that the input analog speech signal exists; and

control means in response to the output of said detection means for writing the digital signal into said memory while the input analog speech signal exists until the store capacity of said memory is filled up, and for starting read-out of the digital signal from said memory with detection of the termination of the input analog speech signal.