US3777471A - Presettable frequency divider for electronic timepiece - Google Patents

Presettable frequency divider for electronic timepiece Download PDF

Info

Publication number
US3777471A
US3777471A US00175662A US3777471DA US3777471A US 3777471 A US3777471 A US 3777471A US 00175662 A US00175662 A US 00175662A US 3777471D A US3777471D A US 3777471DA US 3777471 A US3777471 A US 3777471A
Authority
US
United States
Prior art keywords
frequency
divider
pulses
stages
standard
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 - Lifetime
Application number
US00175662A
Other languages
English (en)
Inventor
D Koehler
J Zupfer
J Prak
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.)
Bulova Watch Co Inc
Original Assignee
Bulova Watch Co 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 Bulova Watch Co Inc filed Critical Bulova Watch Co Inc
Application granted granted Critical
Publication of US3777471A publication Critical patent/US3777471A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
US00175662A 1971-08-27 1971-08-27 Presettable frequency divider for electronic timepiece Expired - Lifetime US3777471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17566271A 1971-08-27 1971-08-27

Publications (1)

Publication Number Publication Date
US3777471A true US3777471A (en) 1973-12-11

Family

ID=22641133

Family Applications (1)

Application Number Title Priority Date Filing Date
US00175662A Expired - Lifetime US3777471A (en) 1971-08-27 1971-08-27 Presettable frequency divider for electronic timepiece

Country Status (8)

Country Link
US (1) US3777471A (ja)
JP (1) JPS5236429B2 (ja)
CA (1) CA972823A (ja)
CH (2) CH1210672A4 (ja)
FR (1) FR2150838B1 (ja)
GB (1) GB1398537A (ja)
HK (1) HK23976A (ja)
IT (1) IT962549B (ja)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910030A (en) * 1973-09-12 1975-10-07 Ise Electronics Corp Digital clocks
US3916612A (en) * 1972-10-02 1975-11-04 Citizen Watch Co Ltd Electronic timepiece
US3922844A (en) * 1973-04-25 1975-12-02 Suwa Seikosha Kk Electronic timepiece
US3931703A (en) * 1973-02-27 1976-01-13 Ebauches S.A. Correcting device for an electronic watch
US3945194A (en) * 1973-12-15 1976-03-23 Itt Industries, Inc. Electronic quartz clock with integrated circuits
US3948036A (en) * 1973-12-24 1976-04-06 Citizen Watch Co., Ltd. Electronic timepiece
US3962701A (en) * 1974-12-23 1976-06-08 Rockwell International Corporation Coded counting sequence and logic implementation thereof to drive a display pattern
US3967442A (en) * 1973-02-01 1976-07-06 Berney Jean Claude Electric watch having an electromechanical movement including a correction mechanism for small errors
US3975898A (en) * 1974-07-11 1976-08-24 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3978649A (en) * 1973-07-20 1976-09-07 Kabushiki Kaisha Suwa Seikosha Quartz crystal electronic timepiece
US4015208A (en) * 1974-09-16 1977-03-29 Centre Electronique Horloger S.A. Frequency generator compensated as a function of at least one physical parameter of the environment
US4015419A (en) * 1972-10-02 1977-04-05 Citizen Watch Co., Ltd. Electronic timepiece
US4020626A (en) * 1974-05-14 1977-05-03 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4028879A (en) * 1974-07-26 1977-06-14 Eurosil G.M.B.H. Switching arrangement for setting time-measuring apparatus
US4043109A (en) * 1973-01-11 1977-08-23 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US4051663A (en) * 1973-12-05 1977-10-04 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
USRE29423E (en) * 1970-12-17 1977-10-04 Kabushiki Kaisha Suwa Seikosha Time correction device for digital watches
US4055945A (en) * 1975-12-15 1977-11-01 Timex Corporation Frequency adjustment means for an electronic timepiece
US4062178A (en) * 1973-04-19 1977-12-13 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US4093873A (en) * 1976-10-28 1978-06-06 Intel Corporation Compensating digital counter for quartz crystal oscillator
US4098070A (en) * 1975-01-13 1978-07-04 Kabushiki Kaisha Suwa Seikosha Digital display electronic wristwatch
US4118922A (en) * 1975-12-27 1978-10-10 Canon Kabushiki Kaisha Electronic watch or clock and accessory devices therefor
US4155218A (en) * 1976-04-23 1979-05-22 Ebauches S.A. Electronic watch
US4162608A (en) * 1974-06-05 1979-07-31 Kabushiki Kaisha Suwa Seikosha Electronic timepiece frequency regulating circuit
US4165605A (en) * 1976-05-29 1979-08-28 Casio Computer Co. Ltd. Electronic timepiece
EP0069372A1 (fr) * 1981-07-06 1983-01-12 OMEGA Louis Brandt & Frère S.A. Procédé pour contrôler la marche d'une pièce d'horlogerie et pièce d'horlogerie adaptée à ce procédé
US4407019A (en) * 1977-07-21 1983-09-27 Kabushiki Kaisha Suwa Seikosha Electronic wristwatch
WO2000013067A1 (fr) * 1998-08-28 2000-03-09 Swatch Ag Piece d'horlogerie electronique comportant une indication horaire fondee sur un system decimal

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH554015A (ja) * 1971-10-15 1974-09-13
JPS4991276A (ja) * 1972-12-29 1974-08-31
JPS4994365A (ja) * 1973-01-09 1974-09-07
JPS4996769A (ja) * 1973-01-18 1974-09-12
JPS49130774A (ja) * 1973-04-19 1974-12-14
JPS5039977A (ja) * 1973-08-13 1975-04-12
JPS5756034B2 (ja) * 1973-09-10 1982-11-27
JPS5125441A (ja) * 1974-08-27 1976-03-02 Kobe Steel Ltd
JPS51146268A (en) * 1975-06-10 1976-12-15 Seiko Instr & Electronics Ltd Frequency divider for clock
JPS5191762A (ja) * 1975-10-15 1976-08-11
CH624536B (fr) * 1978-11-24 Ebauches Sa Piece d'horlogerie electronique a affichage analogique comportant un diviseur a taux de division ajustable.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530663A (en) * 1967-09-01 1970-09-29 Patek Philippe Sa Automatic and continuous time adjusting device for a clock
US3540207A (en) * 1968-09-20 1970-11-17 Timex Corp Electronic watch counting circuit
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
US3629582A (en) * 1969-04-24 1971-12-21 Dale R Koehler Timepiece with radioactive timekeeping standard
US3646751A (en) * 1969-12-05 1972-03-07 Detection Sciences Digital timing system
US3653204A (en) * 1969-08-20 1972-04-04 Seiko Instr & Electronics Digital display world clock
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530663A (en) * 1967-09-01 1970-09-29 Patek Philippe Sa Automatic and continuous time adjusting device for a clock
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
US3540207A (en) * 1968-09-20 1970-11-17 Timex Corp Electronic watch counting circuit
US3629582A (en) * 1969-04-24 1971-12-21 Dale R Koehler Timepiece with radioactive timekeeping standard
US3653204A (en) * 1969-08-20 1972-04-04 Seiko Instr & Electronics Digital display world clock
US3646751A (en) * 1969-12-05 1972-03-07 Detection Sciences Digital timing system
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29423E (en) * 1970-12-17 1977-10-04 Kabushiki Kaisha Suwa Seikosha Time correction device for digital watches
US4015419A (en) * 1972-10-02 1977-04-05 Citizen Watch Co., Ltd. Electronic timepiece
US3916612A (en) * 1972-10-02 1975-11-04 Citizen Watch Co Ltd Electronic timepiece
US4043109A (en) * 1973-01-11 1977-08-23 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3967442A (en) * 1973-02-01 1976-07-06 Berney Jean Claude Electric watch having an electromechanical movement including a correction mechanism for small errors
US3931703A (en) * 1973-02-27 1976-01-13 Ebauches S.A. Correcting device for an electronic watch
US4062178A (en) * 1973-04-19 1977-12-13 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3922844A (en) * 1973-04-25 1975-12-02 Suwa Seikosha Kk Electronic timepiece
US3978649A (en) * 1973-07-20 1976-09-07 Kabushiki Kaisha Suwa Seikosha Quartz crystal electronic timepiece
US3910030A (en) * 1973-09-12 1975-10-07 Ise Electronics Corp Digital clocks
US4051663A (en) * 1973-12-05 1977-10-04 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3945194A (en) * 1973-12-15 1976-03-23 Itt Industries, Inc. Electronic quartz clock with integrated circuits
US3948036A (en) * 1973-12-24 1976-04-06 Citizen Watch Co., Ltd. Electronic timepiece
US4020626A (en) * 1974-05-14 1977-05-03 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4162608A (en) * 1974-06-05 1979-07-31 Kabushiki Kaisha Suwa Seikosha Electronic timepiece frequency regulating circuit
US3975898A (en) * 1974-07-11 1976-08-24 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US4028879A (en) * 1974-07-26 1977-06-14 Eurosil G.M.B.H. Switching arrangement for setting time-measuring apparatus
US4015208A (en) * 1974-09-16 1977-03-29 Centre Electronique Horloger S.A. Frequency generator compensated as a function of at least one physical parameter of the environment
US3962701A (en) * 1974-12-23 1976-06-08 Rockwell International Corporation Coded counting sequence and logic implementation thereof to drive a display pattern
US4098070A (en) * 1975-01-13 1978-07-04 Kabushiki Kaisha Suwa Seikosha Digital display electronic wristwatch
US4055945A (en) * 1975-12-15 1977-11-01 Timex Corporation Frequency adjustment means for an electronic timepiece
US4118922A (en) * 1975-12-27 1978-10-10 Canon Kabushiki Kaisha Electronic watch or clock and accessory devices therefor
US4155218A (en) * 1976-04-23 1979-05-22 Ebauches S.A. Electronic watch
US4165605A (en) * 1976-05-29 1979-08-28 Casio Computer Co. Ltd. Electronic timepiece
US4093873A (en) * 1976-10-28 1978-06-06 Intel Corporation Compensating digital counter for quartz crystal oscillator
US4407019A (en) * 1977-07-21 1983-09-27 Kabushiki Kaisha Suwa Seikosha Electronic wristwatch
EP0069372A1 (fr) * 1981-07-06 1983-01-12 OMEGA Louis Brandt & Frère S.A. Procédé pour contrôler la marche d'une pièce d'horlogerie et pièce d'horlogerie adaptée à ce procédé
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
WO2000013067A1 (fr) * 1998-08-28 2000-03-09 Swatch Ag Piece d'horlogerie electronique comportant une indication horaire fondee sur un system decimal
US6809993B1 (en) 1998-08-28 2004-10-26 Swatch Ag Electronic timepiece including a time related data item based on a decimal system

Also Published As

Publication number Publication date
JPS5236429B2 (ja) 1977-09-16
CA972823A (en) 1975-08-12
CH558559A (ja) 1975-01-31
GB1398537A (en) 1975-06-25
DE2241514A1 (de) 1973-03-01
HK23976A (en) 1976-04-30
JPS4833859A (ja) 1973-05-14
CH1210672A4 (ja) 1974-08-15
IT962549B (it) 1973-12-31
DE2241514B2 (de) 1976-02-19
FR2150838A1 (ja) 1973-04-13
FR2150838B1 (ja) 1977-03-18

Similar Documents

Publication Publication Date Title
US3777471A (en) Presettable frequency divider for electronic timepiece
US3928959A (en) Electronic timepiece
US3540207A (en) Electronic watch counting circuit
US3895486A (en) Timekeeper
US3643418A (en) Time-setting device for an electronic watch
US3823551A (en) Solid state electronic timepiece
US3754152A (en) Incrementally adjustable capacitor unit for tuning a crystal-controlled oscillator
US3707071A (en) Solid state timepiece
US3812669A (en) Electronic timepiece
FR2404250A1 (fr) Piece d'horlogerie electronique
US3714867A (en) Solid state watch incorporating largescale integrated circuits
US3757509A (en) Chronograph timepiece using digital display
US4159622A (en) Electronic timepiece having a main oscillator circuitry and secondary oscillator circuitry
GB2126383A (en) Analog electronic timepiece
US3800233A (en) Adjustable frequency pulse generator
GB1426532A (en) Device for regulating the running of an electronic watch
US3914931A (en) Electronic timepiece
US3889459A (en) Electronic timepiece and method of making the same
US3922844A (en) Electronic timepiece
KR20010072963A (ko) 십진법에 바탕한 시간 관련 데이터 아이템을 포함하는전자식 시계
US3748845A (en) Electronic system module for crystal-controlled watch
US4043109A (en) Electronic timepiece
US4068462A (en) Frequency adjustment circuit
US4089159A (en) Electronic timepiece
US3795098A (en) Time correction device for digital indication electronic watch