JPS57155766A - Electronic reproducing device of voice recording - Google Patents

Electronic reproducing device of voice recording

Info

Publication number
JPS57155766A
JPS57155766A JP56041995A JP4199581A JPS57155766A JP S57155766 A JPS57155766 A JP S57155766A JP 56041995 A JP56041995 A JP 56041995A JP 4199581 A JP4199581 A JP 4199581A JP S57155766 A JPS57155766 A JP S57155766A
Authority
JP
Japan
Prior art keywords
voice
recording
reproduction
semiconductor chip
delta
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56041995A
Other languages
Japanese (ja)
Inventor
Yoshiaki Hashimoto
Takashi Takamizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIHON TEKISASU INSUTSURUMENTSU KK
Texas Instruments Japan Ltd
Original Assignee
NIHON TEKISASU INSUTSURUMENTSU KK
Texas Instruments Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIHON TEKISASU INSUTSURUMENTSU KK, Texas Instruments Japan Ltd filed Critical NIHON TEKISASU INSUTSURUMENTSU KK
Priority to JP56041995A priority Critical patent/JPS57155766A/en
Publication of JPS57155766A publication Critical patent/JPS57155766A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To obtain a light and compact size device with high recording density, by integrating a semiconductor memory and delta modulation circuit on a single semiconductor chip to dually use the delta modulation circuit for recording and reproducing modes. CONSTITUTION:A microphone 2 is connected to a mike-amplifier 3 with amplified voice signal inputted to the semiconductor chip 9 for the reproduction of voice recording. The inputted voice signal is converted to digital signal by the delta modulator 4, when judged as over the fixed level in a level detector. Next, the digitized voice data is stored in a random access memory 7 under the control of a control circuit 6. For reproduction, the voice data in the RAM7 is transmitted to the delta modulator 4 to convert to analog signal for output from a speaker 11 via an audio amplifier 10 after the elimination of sampling noise in a filter circuit 8.
JP56041995A 1981-03-23 1981-03-23 Electronic reproducing device of voice recording Pending JPS57155766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041995A JPS57155766A (en) 1981-03-23 1981-03-23 Electronic reproducing device of voice recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041995A JPS57155766A (en) 1981-03-23 1981-03-23 Electronic reproducing device of voice recording

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2291369A Division JPH03201299A (en) 1990-10-29 1990-10-29 Electronic sound recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS57155766A true JPS57155766A (en) 1982-09-25

Family

ID=12623776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041995A Pending JPS57155766A (en) 1981-03-23 1981-03-23 Electronic reproducing device of voice recording

Country Status (1)

Country Link
JP (1) JPS57155766A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047051U (en) * 1983-09-08 1985-04-02 東北エプソン株式会社 Card with voice memory function
JPS60169799U (en) * 1983-11-29 1985-11-11 株式会社十和田技研 message device
JPS6231899A (en) * 1985-06-04 1987-02-10 ウエル−メ−ド．トイ．マニユフアクチユアリング．コ−ポレ−シヨン Voice generator and voice activating echo generator utilizing nature thereof
JPS6331099A (en) * 1986-07-25 1988-02-09 Seikosha Co Ltd Sound recording device
JPS6345593U (en) * 1986-09-10 1988-03-28
JPS63155200U (en) * 1987-03-31 1988-10-12
JPH03201299A (en) * 1990-10-29 1991-09-03 Texas Instr Japan Ltd Electronic sound recording and reproducing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983427A (en) * 1972-12-13 1974-08-10
JPS5419138A (en) * 1977-07-13 1979-02-13 Toshiba Corp Enclosed switchboard

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983427A (en) * 1972-12-13 1974-08-10
JPS5419138A (en) * 1977-07-13 1979-02-13 Toshiba Corp Enclosed switchboard

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047051U (en) * 1983-09-08 1985-04-02 東北エプソン株式会社 Card with voice memory function
JPS60169799U (en) * 1983-11-29 1985-11-11 株式会社十和田技研 message device
JPS6231899A (en) * 1985-06-04 1987-02-10 ウエル−メ−ド．トイ．マニユフアクチユアリング．コ−ポレ−シヨン Voice generator and voice activating echo generator utilizing nature thereof
JPS6331099A (en) * 1986-07-25 1988-02-09 Seikosha Co Ltd Sound recording device
JPS6345593U (en) * 1986-09-10 1988-03-28
JPS63155200U (en) * 1987-03-31 1988-10-12
JPH03201299A (en) * 1990-10-29 1991-09-03 Texas Instr Japan Ltd Electronic sound recording and reproducing device
JPH0531240B2 (en) * 1990-10-29 1993-05-12 Nippon Tekisasu Insutsurumentsu Kk

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