GB1355153A - Electronic digital clock apparatus - Google Patents

Electronic digital clock apparatus

Info

Publication number
GB1355153A
GB1355153A GB2912572A GB2912572A GB1355153A GB 1355153 A GB1355153 A GB 1355153A GB 2912572 A GB2912572 A GB 2912572A GB 2912572 A GB2912572 A GB 2912572A GB 1355153 A GB1355153 A GB 1355153A
Authority
GB
United Kingdom
Prior art keywords
digit
shift
adder
pulses
time information
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
Application number
GB2912572A
Other languages
English (en)
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1355153A publication Critical patent/GB1355153A/en
Expired legal-status Critical Current

Links

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
    • G04G3/025—Circuits for deriving low frequency timing pulses from pulses of higher frequency by storing time-date which are periodically investigated and modified accordingly, e.g. by using cyclic shift-registers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/082—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
GB2912572A 1971-06-23 1972-06-21 Electronic digital clock apparatus Expired GB1355153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46044779 1971-06-23

Publications (1)

Publication Number Publication Date
GB1355153A true GB1355153A (en) 1974-06-05

Family

ID=12700882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2912572A Expired GB1355153A (en) 1971-06-23 1972-06-21 Electronic digital clock apparatus

Country Status (7)

Country Link
US (1) US3788058A (enrdf_load_stackoverflow)
CA (1) CA970859A (enrdf_load_stackoverflow)
CH (2) CH550428A (enrdf_load_stackoverflow)
DE (1) DE2230733C3 (enrdf_load_stackoverflow)
FR (1) FR2143303B1 (enrdf_load_stackoverflow)
GB (1) GB1355153A (enrdf_load_stackoverflow)
IT (1) IT956800B (enrdf_load_stackoverflow)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986333A (en) * 1971-03-22 1976-10-19 Sharp Kabushiki Kaisha Electronic digital clock
US4035627A (en) * 1973-05-29 1977-07-12 Hewlett-Packard Company Scientific calculator
US3988886A (en) * 1973-08-14 1976-11-02 Casio Computer Co., Ltd. Time setting device for an electronic watch
JPS5234918B2 (enrdf_load_stackoverflow) * 1974-05-31 1977-09-06
US3938317A (en) * 1974-08-10 1976-02-17 Spano John D Serial time read out apparatus
US3925777A (en) * 1974-09-23 1975-12-09 Pressman D R Electronic clock employing repeating sequential single digit display
JPH0310916B2 (enrdf_load_stackoverflow) * 1974-10-31 1991-02-14 Citizen Watch Co Ltd
JPS5613276B2 (enrdf_load_stackoverflow) * 1974-11-21 1981-03-27
CH593509B5 (enrdf_load_stackoverflow) * 1974-12-11 1977-12-15 Ebauches Sa
US4184320A (en) * 1975-05-30 1980-01-22 Casio Computer Co., Ltd. Electronic stop watches
US4025774A (en) * 1975-06-16 1977-05-24 American Hospital Supply Corporation Timing apparatus including electronic calculator circuits
JPS6030914B2 (ja) * 1975-11-04 1985-07-19 セイコーインスツルメンツ株式会社 電子時計
US4206458A (en) * 1976-01-28 1980-06-03 Canon Kabushiki Kaisha Numerical display system for electronic instrument
US4058714A (en) * 1976-06-10 1977-11-15 Mostow Arthur L Selectively operated, clock-controlled repetitive calculator
US4240150A (en) * 1977-03-15 1980-12-16 Citizen Watch Co., Ltd. Portable timepiece calculator with power savings feature
US4181963A (en) * 1977-04-19 1980-01-01 Casio Computer Co., Ltd. Electronic calculator with time counting function
JPS5424558A (en) * 1977-07-26 1979-02-23 Citizen Watch Co Ltd Portable electronic unit with clock function
JPS6019471B2 (ja) * 1978-02-17 1985-05-16 シチズン時計株式会社 電子時計
US4267587A (en) * 1978-02-17 1981-05-12 Casio Computer Co., Ltd. Electronic timepiece circuit
JPS54122944A (en) * 1978-03-16 1979-09-22 Toshiba Corp Logic circuit
US10191128B2 (en) 2014-02-12 2019-01-29 Life Services, LLC Device and method for loops-over-loops MRI coils

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108228A (en) * 1961-12-18 1963-10-22 Ibm Delay compensation by distributed synchronous pulses
US3258906A (en) * 1964-03-04 1966-07-05 Gen Time Corp Solid state clock
US3516242A (en) * 1968-02-23 1970-06-23 Sprague Electric Co Visual display of time variable electric information
US3505804A (en) * 1968-04-23 1970-04-14 Rca Corp Solid state clock
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Also Published As

Publication number Publication date
FR2143303A1 (enrdf_load_stackoverflow) 1973-02-02
CA970859A (en) 1975-07-08
US3788058A (en) 1974-01-29
CH945372A4 (enrdf_load_stackoverflow) 1973-12-14
FR2143303B1 (enrdf_load_stackoverflow) 1977-12-23
CH550428A (enrdf_load_stackoverflow) 1974-06-14
DE2230733A1 (de) 1973-01-25
DE2230733B2 (de) 1980-12-04
DE2230733C3 (de) 1981-10-08
IT956800B (it) 1973-10-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PE20 Patent expired after termination of 20 years