DE2629950C3 - Elektronische Uhr - Google Patents

Elektronische Uhr

Info

Publication number
DE2629950C3
DE2629950C3 DE2629950A DE2629950A DE2629950C3 DE 2629950 C3 DE2629950 C3 DE 2629950C3 DE 2629950 A DE2629950 A DE 2629950A DE 2629950 A DE2629950 A DE 2629950A DE 2629950 C3 DE2629950 C3 DE 2629950C3
Authority
DE
Germany
Prior art keywords
circuit
time data
pulse
address
memory
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
DE2629950A
Other languages
German (de)
English (en)
Other versions
DE2629950B2 (de
DE2629950A1 (de
Inventor
Tsuneo Yokohama Takase (Japan)
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 DE2629950A1 publication Critical patent/DE2629950A1/de
Publication of DE2629950B2 publication Critical patent/DE2629950B2/de
Application granted granted Critical
Publication of DE2629950C3 publication Critical patent/DE2629950C3/de
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Read Only Memory (AREA)
DE2629950A 1975-07-02 1976-07-02 Elektronische Uhr Expired DE2629950C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50080984A JPS525565A (en) 1975-07-02 1975-07-02 Electric clock circuit

Publications (3)

Publication Number Publication Date
DE2629950A1 DE2629950A1 (de) 1977-01-13
DE2629950B2 DE2629950B2 (de) 1979-04-19
DE2629950C3 true DE2629950C3 (de) 1979-12-06

Family

ID=13733753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2629950A Expired DE2629950C3 (de) 1975-07-02 1976-07-02 Elektronische Uhr

Country Status (6)

Country Link
US (1) US4092819A (https=)
JP (1) JPS525565A (https=)
CH (1) CH616294B (https=)
DE (1) DE2629950C3 (https=)
FR (1) FR2316646A1 (https=)
GB (1) GB1504107A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330840A (en) 1979-01-17 1982-05-18 Hitachi, Ltd. Multi-function electronic digital watch

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598794B2 (ja) * 1975-12-25 1984-02-27 三菱電機株式会社 デンシトケイカイロ
US4063409A (en) * 1976-01-05 1977-12-20 Intel Corporation Custom watch
JPS53143265A (en) * 1977-04-27 1978-12-13 Seiko Epson Corp Electronic watch
JPS5428175A (en) * 1977-08-04 1979-03-02 Seiko Instr & Electronics Ltd Electronic watch
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
JPS54163639A (en) * 1978-06-15 1979-12-26 Tokyo Shibaura Electric Co Carry logical circuit
US4849924A (en) * 1985-06-13 1989-07-18 Tektronix, Inc. Event counting prescaler
JPS6324190A (ja) * 1987-06-26 1988-02-01 Casio Comput Co Ltd 時計装置
JPH02193098A (ja) * 1989-11-27 1990-07-30 Seiko Epson Corp 電子時計
JP2509126B2 (ja) * 1992-02-21 1996-06-19 財団法人半導体研究振興会 半導体メモリ
US6958953B2 (en) * 2003-05-13 2005-10-25 International Business Machines Corporation Real time clock circuit having an internal clock generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327630B1 (https=) * 1971-03-20 1978-08-09
US3986333A (en) * 1971-03-22 1976-10-19 Sharp Kabushiki Kaisha Electronic digital clock
US3719932A (en) * 1972-04-27 1973-03-06 Sperry Rand Corp Bit organized integrated mnos memory circuit with dynamic decoding and store-restore circuitry
CA1028427A (en) * 1973-05-29 1978-03-21 Peter D. Dickinson Scientific calculator
US3988886A (en) * 1973-08-14 1976-11-02 Casio Computer Co., Ltd. Time setting device for an electronic watch
US3934233A (en) * 1973-09-24 1976-01-20 Texas Instruments Incorporated Read-only-memory for electronic calculator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330840A (en) 1979-01-17 1982-05-18 Hitachi, Ltd. Multi-function electronic digital watch

Also Published As

Publication number Publication date
FR2316646A1 (fr) 1977-01-28
CH616294B (de)
JPS5736559B2 (https=) 1982-08-04
GB1504107A (en) 1978-03-15
CH616294GA3 (https=) 1980-03-31
JPS525565A (en) 1977-01-17
US4092819A (en) 1978-06-06
DE2629950B2 (de) 1979-04-19
FR2316646B1 (https=) 1978-09-01
DE2629950A1 (de) 1977-01-13

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Free format text: HENKEL, G., DR.PHIL. FEILER, L., DR.RER.NAT. HAENZEL, W., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN

8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP