US3668859A - Time setting device for an electronic clock - Google Patents

Time setting device for an electronic clock Download PDF

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Publication number
US3668859A
US3668859A US43821A US3668859DA US3668859A US 3668859 A US3668859 A US 3668859A US 43821 A US43821 A US 43821A US 3668859D A US3668859D A US 3668859DA US 3668859 A US3668859 A US 3668859A
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US
United States
Prior art keywords
counter
capacitor
minutes
time setting
watch
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Expired - Lifetime
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US43821A
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English (en)
Inventor
Herbert S Polin
Gustavo Kuhn
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Individual
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Individual
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Publication of US3668859A publication Critical patent/US3668859A/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/04—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/04—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently
    • G04G5/043—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently using commutating devices for selecting the value, e.g. hours, minutes, seconds, to be corrected

Definitions

  • the invention relates to a time setting device for an electronic watch comprising an oscillator, a frequency divider and counting and display devices for the minutes and for the hours connected in series.
  • This device comprises further at least one commutator to switch the input of the counter of the watch onto a capacitor, a resistor charging said capacitor, the forward or backward stepping of this counter of one unit being controlled by the discharge of said capacitor.
  • the present invention has for its object a time setting device for an electronic time indicator and more particularly for an electronic watch.
  • the known electronic clocks or table clocks comprise time setting circuits of two different types. The ones are used to reset once for every 24 hours the time indicator in a well determined position for example at 12 o'clock. Thus once a day at 12 oclock the time setting is automatically made what enables to cancel the working errors from one day on the other.
  • These time setting devices are however not adapted for the portable electronic watches which have to be able to be set at any time of the day and if possible at one or several time setting speeds.
  • time setting circuit of which comprises two control switches and causing, when they are actuated, the feeding either of the hours counter, or of the minutes counter with a signal of a frequency higher than the one corresponding to the normal working of the watch. It is thus possible to advance the time indicator at two different speeds, both greater than the normal working speed by injection of a frequency for example of one cps at the input of the minutes counter or at the input of the hours counter.
  • the time setting device of an electronic watch comprises at least one commutator enabling to switch the input of the counter of the watch on a capacitor, which is charged through a resistor, the discharge of which causes the forward or rearward counting of one unit of this counter.
  • the attached drawing shows schematically and by way of example two embodiments of the device according to the invention.
  • F IG. 1 is a first embodiment thereof.
  • FIG. 2 is a second embodiment thereof.
  • the electronic watch shown very schematically at FIG. 1 comprises a main oscillator l feeding a frequency divider 2 controlling a counting and display device for the minutes 3, which feeds in its turn a counting and display device of the hours 4.
  • the time setting device comprises two push button switches 5 and 6 which are normally maintained in the position shown by a spring, and the electronic watch is working normally.
  • the pulse is produced each time, and the minutes indication goes forward step by step, enabling thus the setting at any wanted value of the display of the minutes.
  • a second contact 5b of the commutator 5 interrupts the normal connection between the minutes counter 3 and the hours counter 4 during the production of the pulse which makes the minutes counter 3 to go forward step by step. This is done in order to avoid that during the setting of the minutes, the indication of the hours be changed.
  • two commutators 5 and 6 could be replaced by a deviator or throw-over-switch.
  • This time setting system may be modified by the introduction of four push buttons or two throw-over-switches.
  • time setting device has to be noted which does not necessitate any auxiliary oscillator. Furthermore the user may effect the time setting at a speed he wants through successive pushes on the commutators.
  • a time setting device for an electronic watch comprising an oscillator, a frequency divider and counting and display devices for the minutes and for the hours connected in series and which comprises further at least one commutator to switch the input of the counter of the watch onto a capacitor, a resistor charging said capacitor, the stepping of this counter of one unit being controlled by the discharge of said capacitor.
  • a device which comprises two commutators, the one for the setting of the minutes and the other for the setting of the hours.
  • a device wherein said commutators, each associated with one of the counters of the watch, cause by the discharge of a capacitor, the forward stepping of one unit of the considered counter; and which comprises further two other commutators, each associated with one of the counters of the watch, causing by the discharge of a capacitor, the backward stepping of one unit of the considered counter.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
US43821A 1969-07-03 1970-06-05 Time setting device for an electronic clock Expired - Lifetime US3668859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1016469A CH510911A (fr) 1969-07-03 1969-07-03 Dispositif de remise à l'heure d'une montre électronique

Publications (1)

Publication Number Publication Date
US3668859A true US3668859A (en) 1972-06-13

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ID=4360076

Family Applications (1)

Application Number Title Priority Date Filing Date
US43821A Expired - Lifetime US3668859A (en) 1969-07-03 1970-06-05 Time setting device for an electronic clock

Country Status (10)

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US (1) US3668859A (en))
JP (1) JPS4832751B1 (en))
AT (1) AT309341B (en))
BE (1) BE752846A (en))
CH (2) CH510911A (en))
DE (1) DE2029801A1 (en))
FR (1) FR2050460A1 (en))
GB (1) GB1287488A (en))
NL (1) NL7006763A (en))
SE (1) SE356145B (en))

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754391A (en) * 1970-12-26 1973-08-28 Suwa Seikosha Kk Driving arrangement for quartz vibrator timepieces
US3786625A (en) * 1971-12-16 1974-01-22 Suisse Pour Ind Horlogere Mana Arrangement for correcting of seconds indication of a timepiece
US3795098A (en) * 1970-12-03 1974-03-05 K Fujita Time correction device for digital indication electronic watch
US3817023A (en) * 1972-04-13 1974-06-18 Casio Computer Co Ltd Clock devices
US3823551A (en) * 1971-05-03 1974-07-16 Riehl Electronics Corp Solid state electronic timepiece
US3916612A (en) * 1972-10-02 1975-11-04 Citizen Watch Co Ltd Electronic timepiece
US3931703A (en) * 1973-02-27 1976-01-13 Ebauches S.A. Correcting device for an electronic watch
US3939641A (en) * 1973-07-31 1976-02-24 Kabushiki Kaisha Suwa Seikosha Electronic circuit for individually correcting each digit of time displayed
US3942318A (en) * 1970-12-03 1976-03-09 Kabushiki Kaisha Suwa Seikosha Time correction device for digital indication electronic watch
US3998046A (en) * 1972-06-12 1976-12-21 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
USRE29423E (en) * 1970-12-17 1977-10-04 Kabushiki Kaisha Suwa Seikosha Time correction device for digital watches
US4086755A (en) * 1974-11-14 1978-05-02 Kabushiki Kaisha Daini Seikosha Apparatus for correcting second hand of electronic timepiece
US4129981A (en) * 1976-02-06 1978-12-19 Citizen Watch Company Limited Electronic timepiece
US4175376A (en) * 1976-09-10 1979-11-27 Copal Company Limited Device for correcting time indication and the like in an electronic clock
US4306302A (en) * 1978-03-31 1981-12-15 Citizen Watch Company Limited Electronic timepiece
US4308608A (en) * 1979-07-31 1981-12-29 Toyota Jidosha Kogyo Kabushiki Kaisha Digital electronic timepieces

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50114672U (en)) * 1974-02-28 1975-09-18
CH589886B5 (en)) * 1974-10-14 1977-07-29 Centre Electron Horloger
JPS5563025U (en)) * 1978-10-26 1980-04-30
JPH025235U (en)) * 1988-06-22 1990-01-12

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194003A (en) * 1963-11-13 1965-07-13 Vogel And Company P Solid state electronic timepiece
US3276200A (en) * 1964-08-27 1966-10-04 Gen Time Corp Electronic clock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194003A (en) * 1963-11-13 1965-07-13 Vogel And Company P Solid state electronic timepiece
US3276200A (en) * 1964-08-27 1966-10-04 Gen Time Corp Electronic clock

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795098A (en) * 1970-12-03 1974-03-05 K Fujita Time correction device for digital indication electronic watch
US3942318A (en) * 1970-12-03 1976-03-09 Kabushiki Kaisha Suwa Seikosha Time correction device for digital indication electronic watch
USRE29423E (en) * 1970-12-17 1977-10-04 Kabushiki Kaisha Suwa Seikosha Time correction device for digital watches
US3754391A (en) * 1970-12-26 1973-08-28 Suwa Seikosha Kk Driving arrangement for quartz vibrator timepieces
US3823551A (en) * 1971-05-03 1974-07-16 Riehl Electronics Corp Solid state electronic timepiece
US3786625A (en) * 1971-12-16 1974-01-22 Suisse Pour Ind Horlogere Mana Arrangement for correcting of seconds indication of a timepiece
US3817023A (en) * 1972-04-13 1974-06-18 Casio Computer Co Ltd Clock devices
US3998046A (en) * 1972-06-12 1976-12-21 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3916612A (en) * 1972-10-02 1975-11-04 Citizen Watch Co Ltd Electronic timepiece
US3931703A (en) * 1973-02-27 1976-01-13 Ebauches S.A. Correcting device for an electronic watch
US3939641A (en) * 1973-07-31 1976-02-24 Kabushiki Kaisha Suwa Seikosha Electronic circuit for individually correcting each digit of time displayed
US4086755A (en) * 1974-11-14 1978-05-02 Kabushiki Kaisha Daini Seikosha Apparatus for correcting second hand of electronic timepiece
US4129981A (en) * 1976-02-06 1978-12-19 Citizen Watch Company Limited Electronic timepiece
US4175376A (en) * 1976-09-10 1979-11-27 Copal Company Limited Device for correcting time indication and the like in an electronic clock
US4306302A (en) * 1978-03-31 1981-12-15 Citizen Watch Company Limited Electronic timepiece
US4308608A (en) * 1979-07-31 1981-12-29 Toyota Jidosha Kogyo Kabushiki Kaisha Digital electronic timepieces

Also Published As

Publication number Publication date
GB1287488A (en) 1972-08-31
DE2029801A1 (de) 1971-01-21
FR2050460A1 (en)) 1971-04-02
CH510911A (fr) 1971-01-29
SE356145B (en)) 1973-05-14
JPS4832751B1 (en)) 1973-10-08
BE752846A (fr) 1971-01-04
NL7006763A (en)) 1971-01-05
AT309341B (de) 1973-08-10
CH1016469A4 (en)) 1971-01-29

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