CA2186069A1 - Sound generator in particular for a timepiece - Google Patents

Sound generator in particular for a timepiece

Info

Publication number
CA2186069A1
CA2186069A1 CA002186069A CA2186069A CA2186069A1 CA 2186069 A1 CA2186069 A1 CA 2186069A1 CA 002186069 A CA002186069 A CA 002186069A CA 2186069 A CA2186069 A CA 2186069A CA 2186069 A1 CA2186069 A1 CA 2186069A1
Authority
CA
Canada
Prior art keywords
sound generator
capacitor
generator according
current mirror
control
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.)
Abandoned
Application number
CA002186069A
Other languages
English (en)
French (fr)
Inventor
Rudolf Bugmann
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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 Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of CA2186069A1 publication Critical patent/CA2186069A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/057—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Control Of Electrical Variables (AREA)
CA002186069A 1995-09-21 1996-09-20 Sound generator in particular for a timepiece Abandoned CA2186069A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02669/95-2 1995-09-21
CH02669/95A CH689243B5 (fr) 1995-09-21 1995-09-21 Générateur sonore, notamment pour pièce d'horlogerie.

Publications (1)

Publication Number Publication Date
CA2186069A1 true CA2186069A1 (en) 1997-03-22

Family

ID=4238914

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186069A Abandoned CA2186069A1 (en) 1995-09-21 1996-09-20 Sound generator in particular for a timepiece

Country Status (8)

Country Link
US (1) US5668783A (enExample)
EP (1) EP0764895B1 (enExample)
JP (1) JP4037930B2 (enExample)
CA (1) CA2186069A1 (enExample)
CH (1) CH689243B5 (enExample)
DE (1) DE69602146T2 (enExample)
SG (1) SG63663A1 (enExample)
TW (1) TW317630B (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236437A (en) * 1979-03-26 1980-12-02 Kimball International, Inc. Organ brass pulse keyer
JPS57211087A (en) * 1981-06-22 1982-12-24 Seiko Instr & Electronics Ltd Boosting circuit of electronic timepiece element
JPS5946691A (ja) * 1982-09-09 1984-03-16 セイコーエプソン株式会社 音響発生回路
US4796503A (en) * 1987-06-15 1989-01-10 Industrial Technology Research Institute Amplification circuit for electronic tone generator
US5493543A (en) * 1994-11-07 1996-02-20 Timex Corporation Capacitive charge pump driver circuit for piezoelectric alarm

Also Published As

Publication number Publication date
US5668783A (en) 1997-09-16
HK1013691A1 (en) 1999-09-03
DE69602146D1 (de) 1999-05-27
JPH09127269A (ja) 1997-05-16
DE69602146T2 (de) 1999-11-18
JP4037930B2 (ja) 2008-01-23
CH689243B5 (fr) 1999-07-15
CH689243GA3 (fr) 1999-01-15
EP0764895A1 (fr) 1997-03-26
EP0764895B1 (fr) 1999-04-21
TW317630B (enExample) 1997-10-11
SG63663A1 (en) 1999-03-30

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20040920