JPS52150658A - Electronic wristwatch with calculator - Google Patents

Electronic wristwatch with calculator

Info

Publication number
JPS52150658A
JPS52150658A JP6644976A JP6644976A JPS52150658A JP S52150658 A JPS52150658 A JP S52150658A JP 6644976 A JP6644976 A JP 6644976A JP 6644976 A JP6644976 A JP 6644976A JP S52150658 A JPS52150658 A JP S52150658A
Authority
JP
Japan
Prior art keywords
calculator
electronic wristwatch
function display
calculator function
circuit
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.)
Granted
Application number
JP6644976A
Other languages
Japanese (ja)
Other versions
JPS5919316B2 (en
Inventor
Tadahiko Nakagiri
Kunihiro Daigo
Toshiaki Oguchi
Toshikazu Hatsuse
Shunichi Shimazaki
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP51066449A priority Critical patent/JPS5919316B2/en
Priority to US05/800,251 priority patent/US4173862A/en
Priority to DE2724739A priority patent/DE2724739C3/en
Priority to GB23098/77A priority patent/GB1573371A/en
Publication of JPS52150658A publication Critical patent/JPS52150658A/en
Publication of JPS5919316B2 publication Critical patent/JPS5919316B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Calculators And Similar Devices (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

PURPOSE:To achieve the reduction in size of a watch by causing the power supply of a calculator function display driving matrix circuit to be generated by a boosing circuit thereby providing only two sets of batteries for time display and calculator function display.
JP51066449A 1976-06-01 1976-06-09 Electronic wristwatch with calculator Expired JPS5919316B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP51066449A JPS5919316B2 (en) 1976-06-09 1976-06-09 Electronic wristwatch with calculator
US05/800,251 US4173862A (en) 1976-06-01 1977-05-25 Booster circuit for electronic timepiece
DE2724739A DE2724739C3 (en) 1976-06-01 1977-06-01 Cockcroft booster circuit for an electronic watch
GB23098/77A GB1573371A (en) 1976-06-01 1977-06-01 Voltage booster circuit for electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51066449A JPS5919316B2 (en) 1976-06-09 1976-06-09 Electronic wristwatch with calculator

Publications (2)

Publication Number Publication Date
JPS52150658A true JPS52150658A (en) 1977-12-14
JPS5919316B2 JPS5919316B2 (en) 1984-05-04

Family

ID=13316081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51066449A Expired JPS5919316B2 (en) 1976-06-01 1976-06-09 Electronic wristwatch with calculator

Country Status (1)

Country Link
JP (1) JPS5919316B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004334197A (en) * 2003-05-01 2004-11-25 Samsung Oled Co Ltd Drive unit of display panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004334197A (en) * 2003-05-01 2004-11-25 Samsung Oled Co Ltd Drive unit of display panel
JP4647235B2 (en) * 2003-05-01 2011-03-09 三星モバイルディスプレイ株式會社 Display panel drive device

Also Published As

Publication number Publication date
JPS5919316B2 (en) 1984-05-04

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