CH600413B5 - - Google Patents

Info

Publication number
CH600413B5
CH600413B5 CH637675A CH637675A CH600413B5 CH 600413 B5 CH600413 B5 CH 600413B5 CH 637675 A CH637675 A CH 637675A CH 637675 A CH637675 A CH 637675A CH 600413 B5 CH600413 B5 CH 600413B5
Authority
CH
Switzerland
Application number
CH637675A
Inventor
Roger Buehler
Christian Faivre
Original Assignee
Far Fab Assortiments Reunies
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 Far Fab Assortiments Reunies filed Critical Far Fab Assortiments Reunies
Priority to CH637675A priority Critical patent/CH600413B5/xx
Priority to CH637675D priority patent/CH637675A4/xx
Priority to DE2619888A priority patent/DE2619888B2/de
Priority to US05/686,524 priority patent/US4086521A/en
Priority to JP51055208A priority patent/JPS51141671A/ja
Publication of CH600413B5 publication Critical patent/CH600413B5/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/909—Monitoring means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/912—Pulse or frequency counter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
CH637675A 1975-05-16 1975-05-16 CH600413B5 (xx)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH637675A CH600413B5 (xx) 1975-05-16 1975-05-16
CH637675D CH637675A4 (xx) 1975-05-16 1975-05-16
DE2619888A DE2619888B2 (de) 1975-05-16 1976-05-05 Zeitmessgerät mit einem Motor
US05/686,524 US4086521A (en) 1975-05-16 1976-05-14 Digital system for stabilizing the speed of a clockwork motor
JP51055208A JPS51141671A (en) 1975-05-16 1976-05-14 Clock having electronically controlled motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH637675A CH600413B5 (xx) 1975-05-16 1975-05-16

Publications (1)

Publication Number Publication Date
CH600413B5 true CH600413B5 (xx) 1978-06-15

Family

ID=4308596

Family Applications (2)

Application Number Title Priority Date Filing Date
CH637675D CH637675A4 (xx) 1975-05-16 1975-05-16
CH637675A CH600413B5 (xx) 1975-05-16 1975-05-16

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH637675D CH637675A4 (xx) 1975-05-16 1975-05-16

Country Status (4)

Country Link
US (1) US4086521A (xx)
JP (1) JPS51141671A (xx)
CH (2) CH637675A4 (xx)
DE (1) DE2619888B2 (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616045B (fr) * 1978-06-20 Ebauches Sa Procede pour reduire la consommation d'une piece d'horlogerie electronique et piece d'horlogerie electronique mettant en oeuvre ce procede.
JPS5883292A (ja) * 1981-11-12 1983-05-19 Shiojiri Kogyo Kk 電子腕時計
JPS60241784A (ja) * 1984-05-15 1985-11-30 Sanyo Electric Co Ltd 直流サ−ボモ−タの制御装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110853A (en) * 1958-06-05 1963-11-12 Westinghouse Electric Corp Electrical control apparatus
US3206665A (en) * 1962-12-19 1965-09-14 Lear Siegler Inc Digital speed controller
US3564368A (en) * 1968-01-10 1971-02-16 Gen Electric Spindle speed control monitor
US3546553A (en) * 1968-09-06 1970-12-08 Nasa System for maintaining a motor at a predetermined speed utilizing digital feedback means
US3621354A (en) * 1970-01-07 1971-11-16 Gen Electric Dc motor current actuated digital control system
US3646417A (en) * 1971-03-25 1972-02-29 Ibm Digital speed servomechanism

Also Published As

Publication number Publication date
US4086521A (en) 1978-04-25
DE2619888B2 (de) 1979-09-13
JPS51141671A (en) 1976-12-06
CH637675A4 (xx) 1977-05-13
DE2619888A1 (de) 1976-11-18

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Legal Events

Date Code Title Description
PL Patent ceased