CH617818GA3 - Watch, provided with a device generating an alarm signal whose acoustic intensity varies gradually - Google Patents

Watch, provided with a device generating an alarm signal whose acoustic intensity varies gradually Download PDF

Info

Publication number
CH617818GA3
CH617818GA3 CH1201076A CH1201076A CH617818GA3 CH 617818G A3 CH617818G A3 CH 617818GA3 CH 1201076 A CH1201076 A CH 1201076A CH 1201076 A CH1201076 A CH 1201076A CH 617818G A3 CH617818G A3 CH 617818GA3
Authority
CH
Switzerland
Prior art keywords
frequency
watch
intensity varies
alarm signal
signal whose
Prior art date
Application number
CH1201076A
Other languages
English (en)
Other versions
CH617818B (fr
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
Publication of CH617818B publication Critical patent/CH617818B/fr
Application filed filed Critical
Publication of CH617818GA3 publication Critical patent/CH617818GA3/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
CH1201076A 1975-09-22 1976-09-22 Watch, provided with a device generating an alarm signal whose acoustic intensity varies gradually CH617818GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50114543A JPS5238259A (en) 1975-09-22 1975-09-22 Alarm sound producing device

Publications (2)

Publication Number Publication Date
CH617818B CH617818B (fr)
CH617818GA3 true CH617818GA3 (en) 1980-06-30

Family

ID=14640393

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1201076A CH617818GA3 (en) 1975-09-22 1976-09-22 Watch, provided with a device generating an alarm signal whose acoustic intensity varies gradually

Country Status (4)

Country Link
JP (1) JPS5238259A (fr)
CH (1) CH617818GA3 (fr)
DE (1) DE2641149A1 (fr)
GB (1) GB1525818A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378921B2 (en) * 2018-07-02 2022-07-05 The Swatch Group Research And Development Ltd Thermoelectric watch testable in production or after-sales service

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54670A (en) * 1977-05-26 1979-01-06 Seiko Instr & Electronics Ltd Alarm wrista watch
JPH01148991A (ja) * 1987-12-07 1989-06-12 Matsushita Electric Ind Co Ltd アラーム音発生装置
JP6017499B2 (ja) * 2014-06-26 2016-11-02 京セラドキュメントソリューションズ株式会社 電子機器および報知音出力プログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378921B2 (en) * 2018-07-02 2022-07-05 The Swatch Group Research And Development Ltd Thermoelectric watch testable in production or after-sales service

Also Published As

Publication number Publication date
JPS5238259A (en) 1977-03-24
CH617818B (fr)
DE2641149A1 (de) 1977-03-31
GB1525818A (en) 1978-09-20

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Legal Events

Date Code Title Description
PL Patent ceased