DE2813857C2 - - Google Patents

Info

Publication number
DE2813857C2
DE2813857C2 DE2813857A DE2813857A DE2813857C2 DE 2813857 C2 DE2813857 C2 DE 2813857C2 DE 2813857 A DE2813857 A DE 2813857A DE 2813857 A DE2813857 A DE 2813857A DE 2813857 C2 DE2813857 C2 DE 2813857C2
Authority
DE
Germany
Prior art keywords
signal
circuit
signals
alarm
frequency
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.)
Expired
Application number
DE2813857A
Other languages
German (de)
English (en)
Other versions
DE2813857A1 (de
Inventor
Fumikazu Murakami
Takuro Tokio/Tokyo Jp Fukuichi
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of DE2813857A1 publication Critical patent/DE2813857A1/de
Application granted granted Critical
Publication of DE2813857C2 publication Critical patent/DE2813857C2/de
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
    • G04G13/023—Adjusting the duration or amplitude of signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
DE19782813857 1977-05-23 1978-03-31 Elektronische uhr mit alarmeinrichtung Granted DE2813857A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52060108A JPS6026988B2 (ja) 1977-05-23 1977-05-23 アラ−ム付電子時計

Publications (2)

Publication Number Publication Date
DE2813857A1 DE2813857A1 (de) 1978-11-30
DE2813857C2 true DE2813857C2 (US07608600-20091027-C00054.png) 1989-05-18

Family

ID=13132573

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782813857 Granted DE2813857A1 (de) 1977-05-23 1978-03-31 Elektronische uhr mit alarmeinrichtung

Country Status (8)

Country Link
US (1) US4205517A (US07608600-20091027-C00054.png)
JP (1) JPS6026988B2 (US07608600-20091027-C00054.png)
CH (1) CH630503B (US07608600-20091027-C00054.png)
DE (1) DE2813857A1 (US07608600-20091027-C00054.png)
FR (1) FR2392434A1 (US07608600-20091027-C00054.png)
GB (1) GB1570162A (US07608600-20091027-C00054.png)
HK (1) HK50982A (US07608600-20091027-C00054.png)
SG (1) SG44182G (US07608600-20091027-C00054.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819907C3 (de) * 1978-05-06 1986-04-17 Gebrüder Junghans GmbH, 7230 Schramberg Elektrische Weckeruhr
JPS5615168U (US07608600-20091027-C00054.png) * 1979-07-10 1981-02-09
JPS5719798A (en) * 1980-07-10 1982-02-02 Seikosha Kk Acoustic signal generating circuit
US4382251A (en) * 1980-09-23 1983-05-03 Casio Computer Co., Ltd. Envelope control device for piezoelectric buzzer
JPS5816294A (ja) * 1981-07-23 1983-01-29 セイコーインスツルメンツ株式会社 圧電ブザー付電子機器
JPS60108567A (ja) * 1983-11-16 1985-06-14 Nippon Denso Co Ltd 内燃機関用点火制御装置
US6310833B1 (en) * 1999-11-30 2001-10-30 Salton, Inc. Interactive voice recognition digital clock
EP1666166A1 (fr) * 2004-12-01 2006-06-07 Asulab S.A. Procede de generation d'un son polyphonique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1366794A (en) * 1971-12-02 1974-09-11 Seiko Instr & Electronics Electronic timepiece
JPS584316B2 (ja) * 1972-03-21 1983-01-25 セイコーインスツルメンツ株式会社 デンシメトロノ−ム
US3861263A (en) * 1972-06-21 1975-01-21 Nippon Musical Instruments Mfg Variable time constant circuit for use in an electronic musical instrument
FR2195806B3 (US07608600-20091027-C00054.png) * 1972-08-09 1975-10-03 Bayard Reveils A
JPS522563A (en) * 1975-06-24 1977-01-10 Seiko Instr & Electronics Ltd Electronic clock with alarm
US4098071A (en) * 1975-10-09 1978-07-04 Matsushita Electric Industrial Co., Ltd. Time signal clock
US4055843A (en) * 1976-02-23 1977-10-25 Whitaker Ranald O Annunciator for use with electronic digital clock
JPS52123223A (en) * 1976-04-08 1977-10-17 Toshiba Corp Electronic circuit for music box
US4073133A (en) * 1976-04-13 1978-02-14 General Time Corporation Electronic chime and strike system
JPS5848877B2 (ja) * 1976-04-30 1983-10-31 株式会社精工舎 目覚し音発生装置

Also Published As

Publication number Publication date
JPS54669A (en) 1979-01-06
SG44182G (en) 1983-02-25
CH630503B (fr)
FR2392434B1 (US07608600-20091027-C00054.png) 1984-06-29
CH630503GA3 (US07608600-20091027-C00054.png) 1982-06-30
JPS6026988B2 (ja) 1985-06-26
HK50982A (en) 1982-12-03
DE2813857A1 (de) 1978-11-30
US4205517A (en) 1980-06-03
FR2392434A1 (fr) 1978-12-22
GB1570162A (en) 1980-06-25

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: SEIKO INSTRUMENTS AND ELECTRONICS LTD., TOKIO, JP

D2 Grant after examination
8364 No opposition during term of opposition