JPS54110875A - Electric alarm clock - Google Patents

Electric alarm clock

Info

Publication number
JPS54110875A
JPS54110875A JP344879A JP344879A JPS54110875A JP S54110875 A JPS54110875 A JP S54110875A JP 344879 A JP344879 A JP 344879A JP 344879 A JP344879 A JP 344879A JP S54110875 A JPS54110875 A JP S54110875A
Authority
JP
Japan
Prior art keywords
alarm clock
electric alarm
electric
clock
alarm
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
JP344879A
Other languages
Japanese (ja)
Inventor
Ooruhoizaa Hansu
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 JPS54110875A publication Critical patent/JPS54110875A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/04—Indicating the time of the day
    • G04C21/12—Indicating the time of the day by electro-acoustic means
    • 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
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electromechanical Clocks (AREA)
JP344879A 1978-01-21 1979-01-18 Electric alarm clock Pending JPS54110875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782802694 DE2802694A1 (en) 1978-01-21 1978-01-21 Electroacoustic signal generator for quartz alarm clock - has thin metal disc between membrane and attached piezoelectric resonator

Publications (1)

Publication Number Publication Date
JPS54110875A true JPS54110875A (en) 1979-08-30

Family

ID=6030107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP344879A Pending JPS54110875A (en) 1978-01-21 1979-01-18 Electric alarm clock

Country Status (2)

Country Link
JP (1) JPS54110875A (en)
DE (1) DE2802694A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680598U (en) * 1979-11-28 1981-06-30

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672386A5 (en) * 1986-11-03 1989-11-15 Olten Ag Elektro Apparatebau
FR2643154B1 (en) * 1989-02-14 1991-05-31 Mourgues Eric APPARATUS FOR DETECTION AND SIGNALING OF FALLS OF BODIES INTO WATER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680598U (en) * 1979-11-28 1981-06-30
JPS6128480Y2 (en) * 1979-11-28 1986-08-23

Also Published As

Publication number Publication date
DE2802694A1 (en) 1979-07-26

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