CH645503GA3 - Battery-operated electronic clock with voice synthesising - Google Patents

Battery-operated electronic clock with voice synthesising Download PDF

Info

Publication number
CH645503GA3
CH645503GA3 CH130581A CH130581A CH645503GA3 CH 645503G A3 CH645503G A3 CH 645503GA3 CH 130581 A CH130581 A CH 130581A CH 130581 A CH130581 A CH 130581A CH 645503G A3 CH645503G A3 CH 645503GA3
Authority
CH
Switzerland
Prior art keywords
pulse
converter
battery
voice
values
Prior art date
Application number
CH130581A
Other languages
German (de)
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
Priority claimed from JP2298180A external-priority patent/JPS56119883A/en
Priority claimed from JP4524180A external-priority patent/JPS56141587A/en
Application filed filed Critical
Publication of CH645503GA3 publication Critical patent/CH645503GA3/en

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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Analogue/Digital Conversion (AREA)
  • Electric Clocks (AREA)

Abstract

The D/A converter (106) operates with a pulse-width modulation circuit (108), in order to generate a pulse train as a function of sequential digital signals which determine the amplitude values and polarity values for the purpose of voice synthesis. The pulse width is determined in this case from the values of the digital signals. By filtering out the undesired radio-frequency components of this pulse train by means of a low-pulse filter (112), the voice signals can be synthesised by an audio converter (28). Such a D/A converter functions perfectly at very low supply voltages, and has a very small power input. <IMAGE>
CH130581A 1980-02-26 1981-02-26 Battery-operated electronic clock with voice synthesising CH645503GA3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2298180A JPS56119883A (en) 1980-02-26 1980-02-26 Sound timepiece
JP4524180A JPS56141587A (en) 1980-04-08 1980-04-08 Voice watch

Publications (1)

Publication Number Publication Date
CH645503GA3 true CH645503GA3 (en) 1984-10-15

Family

ID=26360274

Family Applications (1)

Application Number Title Priority Date Filing Date
CH130581A CH645503GA3 (en) 1980-02-26 1981-02-26 Battery-operated electronic clock with voice synthesising

Country Status (4)

Country Link
US (1) US4397562A (en)
CH (1) CH645503GA3 (en)
DE (1) DE3107298A1 (en)
GB (1) GB2073456B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6141262A (en) * 1984-07-31 1986-02-27 Omron Tateisi Electronics Co Voice recordable card
FR2576727A1 (en) * 1985-01-29 1986-08-01 Lepretre Pierre Device for direct generation of signals which can be applied to a sound transducer, from a digitised audiofrequency source
JPH09252252A (en) * 1996-03-14 1997-09-22 Sanyo Electric Co Ltd Digital/analog converter
US6559758B2 (en) * 2001-07-05 2003-05-06 Charles Rey Multi-tone warning sounder
JP4637554B2 (en) * 2004-11-30 2011-02-23 シチズンホールディングス株式会社 Material gripping device, material guiding device and automatic lathe
CN101727897B (en) * 2008-10-17 2012-09-19 深圳迈瑞生物医疗电子股份有限公司 Speech synthesis device, method and monitor applied thereby
US8634278B1 (en) * 2010-02-04 2014-01-21 Trinh A. H. Nguyen Talking watch device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127360A (en) * 1978-03-25 1979-10-03 Sharp Corp Voice watch
US4357489A (en) * 1980-02-04 1982-11-02 Texas Instruments Incorporated Low voltage speech synthesis system with pulse width digital-to-analog converter

Also Published As

Publication number Publication date
GB2073456A (en) 1981-10-14
GB2073456B (en) 1984-05-10
DE3107298A1 (en) 1982-01-07
US4397562A (en) 1983-08-09

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