HK34980A - Improvements in or relating to timepieces having time standards constituted by biezo-electric crystal oscillators - Google Patents

Improvements in or relating to timepieces having time standards constituted by biezo-electric crystal oscillators

Info

Publication number
HK34980A
HK34980A HK349/80A HK34980A HK34980A HK 34980 A HK34980 A HK 34980A HK 349/80 A HK349/80 A HK 349/80A HK 34980 A HK34980 A HK 34980A HK 34980 A HK34980 A HK 34980A
Authority
HK
Hong Kong
Prior art keywords
biezo
timepieces
relating
constituted
electric crystal
Prior art date
Application number
HK349/80A
Other languages
English (en)
Original Assignee
Suwa Seikosha Kk
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 Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Publication of HK34980A publication Critical patent/HK34980A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • H03K23/662—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by adding or suppressing pulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se

Landscapes

  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
HK349/80A 1973-12-05 1980-06-26 Improvements in or relating to timepieces having time standards constituted by biezo-electric crystal oscillators HK34980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48135301A JPS587190B2 (ja) 1973-12-05 1973-12-05 スイシヨウドケイ

Publications (1)

Publication Number Publication Date
HK34980A true HK34980A (en) 1980-07-01

Family

ID=15148493

Family Applications (1)

Application Number Title Priority Date Filing Date
HK349/80A HK34980A (en) 1973-12-05 1980-06-26 Improvements in or relating to timepieces having time standards constituted by biezo-electric crystal oscillators

Country Status (5)

Country Link
US (1) US4051663A (de)
JP (1) JPS587190B2 (de)
GB (1) GB1487955A (de)
HK (1) HK34980A (de)
MY (1) MY8100133A (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911878B2 (ja) * 1975-12-24 1984-03-19 シチズン時計株式会社 デジタル電子時計
US4188775A (en) * 1976-11-16 1980-02-19 Citizen Watch Company Limited Frequency adjustment means for electric timepiece
US4232512A (en) * 1976-12-27 1980-11-11 Citizen Watch Co., Ltd. Solid state watch module construction
CH618315GA3 (de) * 1977-02-21 1980-07-31
US4234958A (en) * 1977-06-16 1980-11-18 Lathem Time Recorder Co., Inc. Radio synchronized time-keeping apparatus and method
US4142360A (en) * 1977-07-07 1979-03-06 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
JPS5422865A (en) * 1977-07-21 1979-02-21 Seiko Epson Corp Miniature electronic watch
US4211065A (en) * 1977-08-26 1980-07-08 Hughes Aircraft Company Automatic system for setting digital watches
US4204398A (en) * 1977-09-16 1980-05-27 Lemelson Jerome H Method and means for automatically setting timepieces in a time zone
JPS5950950B2 (ja) * 1979-04-13 1984-12-11 セイコーインスツルメンツ株式会社 ラジオ付電子時計
US4290130A (en) * 1979-12-21 1981-09-15 Timex Corporation Digital frequency trimmed electronic timepiece
US4282595A (en) * 1979-12-21 1981-08-04 Timex Corporation Method for digital frequency trimming an oscillator in an electronic timepiece
US4407589A (en) * 1981-02-13 1983-10-04 Davidson John R Error correction method and apparatus for electronic timepieces
US4400093A (en) * 1981-07-06 1983-08-23 Omega Louis Brandt & Frere S.A. Method for inspecting the running of a timepiece and timepiece adapted for such method
GB2111269B (en) * 1981-11-25 1986-04-09 Plessey Co Plc Adjustable ratio divider
CH664868GA3 (de) * 1986-07-10 1988-04-15
DE69312697T2 (de) 1993-01-08 1997-12-04 Citizen Watch Co Ltd Datenübertragungsempfangsystem für elektronische Uhr
US6623157B1 (en) * 1999-03-30 2003-09-23 Seiko Epson Corporation Electronic timepiece and method for transmitting data for electronic timepiece
CN1311312C (zh) * 1999-03-30 2007-04-18 精工爱普生株式会社 电子装置、电子装置的外部调整装置、电子装置的调整方法
JP2004226165A (ja) 2003-01-21 2004-08-12 Denso Corp 車両用電子制御装置及び車両乗員検知装置
JP2010256240A (ja) * 2009-04-27 2010-11-11 Denso Corp 車両用時計および車両用時計の製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786972A (en) * 1956-04-27 1957-03-26 Gen Electric Commercial power frequency cordless synchronous clock
CH1229067A4 (de) * 1967-09-01 1970-05-29
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
US3777471A (en) * 1971-08-27 1973-12-11 Bulova Watch Co Inc Presettable frequency divider for electronic timepiece
JPS5319944B2 (de) * 1971-09-25 1978-06-23
CH554015A (de) * 1971-10-15 1974-09-13
IT957184B (it) * 1972-04-12 1973-10-10 Mischiatti S Apparecchiatura elettronica per il comando e la sincronizzazione locale o universale di orologi
GB1450071A (en) * 1972-10-02 1976-09-22 Citizen Watch Co Lgd Electronic timepiece
JPS49114858A (de) * 1973-02-28 1974-11-01
JPS6120817B2 (de) * 1973-12-24 1986-05-23 Citizen Watch Co Ltd
US3914931A (en) * 1974-10-01 1975-10-28 Suwa Seikosha Kk Electronic timepiece

Also Published As

Publication number Publication date
JPS5087366A (de) 1975-07-14
GB1487955A (en) 1977-10-05
US4051663A (en) 1977-10-04
JPS587190B2 (ja) 1983-02-08
MY8100133A (en) 1981-12-31

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