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FR2382037A1 - Electric alarm clock with analogue display - has clock face combined with membrane of electroacoustic transducer - Google Patents

Electric alarm clock with analogue display - has clock face combined with membrane of electroacoustic transducer

Info

Publication number
FR2382037A1
FR2382037A1 FR7801910A FR7801910A FR2382037A1 FR 2382037 A1 FR2382037 A1 FR 2382037A1 FR 7801910 A FR7801910 A FR 7801910A FR 7801910 A FR7801910 A FR 7801910A FR 2382037 A1 FR2382037 A1 FR 2382037A1
Authority
FR
France
Prior art keywords
clock
membrane
electroacoustic transducer
electric alarm
analogue display
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.)
Granted
Application number
FR7801910A
Other languages
French (fr)
Other versions
FR2382037B3 (en
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.)
Quarz Zeit AG
Original Assignee
Quarz Zeit AG
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 Quarz Zeit AG filed Critical Quarz Zeit AG
Publication of FR2382037A1 publication Critical patent/FR2382037A1/en
Application granted granted Critical
Publication of FR2382037B3 publication Critical patent/FR2382037B3/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The electric alarm clock has a quartz oscillator, an analogue time display and an electroacoustic transducer (5) for providing an audible alarm signal. The electroacoustic transducer (5) comprises a control stage (6) and a membrane (4), the latter combined with the clock face (3). Pref. a transparent front cover (12) is secured to a frame (11) to which the periphery of the membrane (4) is attached on the opposite side, this frame (11) pref. formed as a shoulder integral with the clock case.
FR7801910A 1977-02-26 1978-01-24 Electric alarm clock with analogue display - has clock face combined with membrane of electroacoustic transducer Granted FR2382037A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772708482 DE2708482A1 (en) 1977-02-26 1977-02-26 ELECTRIC ALARM CLOCK

Publications (2)

Publication Number Publication Date
FR2382037A1 true FR2382037A1 (en) 1978-09-22
FR2382037B3 FR2382037B3 (en) 1980-10-10

Family

ID=6002293

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801910A Granted FR2382037A1 (en) 1977-02-26 1978-01-24 Electric alarm clock with analogue display - has clock face combined with membrane of electroacoustic transducer

Country Status (3)

Country Link
JP (1) JPS53106175A (en)
DE (1) DE2708482A1 (en)
FR (1) FR2382037A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3457219A1 (en) * 2017-09-14 2019-03-20 The Swatch Group Research and Development Ltd Acoustic radiation membrane, and chiming watch provided with the acoustic membrane

Also Published As

Publication number Publication date
DE2708482A1 (en) 1978-08-31
FR2382037B3 (en) 1980-10-10
JPS53106175A (en) 1978-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse