CH625671B - ELECTRONIC FREQUENCY CONVERTER AND WATCHMAKING PART EQUIPPED WITH THIS CONVERTER. - Google Patents

ELECTRONIC FREQUENCY CONVERTER AND WATCHMAKING PART EQUIPPED WITH THIS CONVERTER.

Info

Publication number
CH625671B
CH625671B CH398876A CH398876A CH625671B CH 625671 B CH625671 B CH 625671B CH 398876 A CH398876 A CH 398876A CH 398876 A CH398876 A CH 398876A CH 625671 B CH625671 B CH 625671B
Authority
CH
Switzerland
Prior art keywords
converter
group
binary registers
cascaded
part equipped
Prior art date
Application number
CH398876A
Other languages
French (fr)
Other versions
CH625671GA3 (en
Inventor
Michel Burdet
Original Assignee
Suisse Horlogerie
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 of CH625671B publication Critical patent/CH625671B/en
Application filed by Suisse Horlogerie filed Critical Suisse Horlogerie
Publication of CH625671GA3 publication Critical patent/CH625671GA3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • 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
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The electronic converter comprises a first group of cascaded binary registers, a plurality of cascaded logic gates which are connected to the binary registers in order to divide the frequency of the signals which it receives by a fractional number and a second group of cascaded binary registers whose input is connected to the output of the last gate in order to produce at the output of the second group an approximately decimal fraction of the frequency at the input of the first group of binary registers. The converter is used in a timepiece with single time base which, besides the displaying of time in hours, minutes and seconds, has a chronograph function with indication of tenths or hundredths of a second. <IMAGE>
CH398876A 1975-04-23 1976-03-31 Electronic frequency converter and timepiece equipped with this converter CH625671GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16825/75A GB1513941A (en) 1975-04-23 1975-04-23 Electronic timepiece for time of day and chronograph functions

Publications (2)

Publication Number Publication Date
CH625671B true CH625671B (en)
CH625671GA3 CH625671GA3 (en) 1981-10-15

Family

ID=10084366

Family Applications (1)

Application Number Title Priority Date Filing Date
CH398876A CH625671GA3 (en) 1975-04-23 1976-03-31 Electronic frequency converter and timepiece equipped with this converter

Country Status (4)

Country Link
JP (2) JPS51130266A (en)
CH (1) CH625671GA3 (en)
FR (1) FR2308971A1 (en)
GB (1) GB1513941A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804041C3 (en) * 1978-01-31 1983-11-17 Gebrüder Junghans GmbH, 7230 Schramberg Electronic clock
DE2821619C3 (en) * 1978-05-18 1981-05-21 Gebrüder Junghans GmbH, 7230 Schramberg Electronic clock with analog display and hands and liquid crystal display unit
JPS5578979U (en) * 1978-11-24 1980-05-30
JP6853093B2 (en) * 2017-03-30 2021-03-31 シチズン時計株式会社 Counter circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941153B2 (en) * 1972-09-22 1984-10-04 シチズン時計株式会社 Quartz watch with competition timekeeping device
JPS5028367A (en) * 1973-07-11 1975-03-22

Also Published As

Publication number Publication date
FR2308971B1 (en) 1981-06-19
CH625671GA3 (en) 1981-10-15
JPS5255669A (en) 1977-05-07
JPS51130266A (en) 1976-11-12
FR2308971A1 (en) 1976-11-19
GB1513941A (en) 1978-06-14

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