CH637675A4 - - Google Patents

Info

Publication number
CH637675A4
CH637675A4 CH637675D CH637675D CH637675A4 CH 637675 A4 CH637675 A4 CH 637675A4 CH 637675 D CH637675 D CH 637675D CH 637675 D CH637675 D CH 637675D CH 637675 A4 CH637675 A4 CH 637675A4
Authority
CH
Switzerland
Application number
CH637675D
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 filed Critical
Publication of CH637675A4 publication Critical patent/CH637675A4/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)
CH637675D 1975-05-16 1975-05-16 CH637675A4 (ja)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH637675A4 true CH637675A4 (ja) 1977-05-13

Family

ID=4308596

Family Applications (2)

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

Family Applications Before (1)

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

Country Status (4)

Country Link
US (1) US4086521A (ja)
JP (1) JPS51141671A (ja)
CH (2) CH600413B5 (ja)
DE (1) DE2619888B2 (ja)

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
JPS51141671A (en) 1976-12-06
US4086521A (en) 1978-04-25
DE2619888A1 (de) 1976-11-18
DE2619888B2 (de) 1979-09-13
CH600413B5 (ja) 1978-06-15

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