JPS55128183A - Controlling device for electronic stop watch - Google Patents

Controlling device for electronic stop watch

Info

Publication number
JPS55128183A
JPS55128183A JP3594179A JP3594179A JPS55128183A JP S55128183 A JPS55128183 A JP S55128183A JP 3594179 A JP3594179 A JP 3594179A JP 3594179 A JP3594179 A JP 3594179A JP S55128183 A JPS55128183 A JP S55128183A
Authority
JP
Japan
Prior art keywords
circuit
depressed
level
output
button
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.)
Pending
Application number
JP3594179A
Other languages
Japanese (ja)
Inventor
Moriyoshi Kurosawa
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP3594179A priority Critical patent/JPS55128183A/en
Publication of JPS55128183A publication Critical patent/JPS55128183A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Unknown Time Intervals (AREA)
  • Push-Button Switches (AREA)

Abstract

PURPOSE: To make possible accurate time indication preventing the uneasiness of control and mishandling by dividing the lap time and the goal time with treatment of the logic circuit.
CONSTITUTION: The stop watch 1 is provided with a display 2, a start-reset-combined control button 4 and control bottons 5 and 6 arranged in terms of the fixed potional relationship. In addition, a logic circuit is arranged inside. Only when the botton 5 is depressed, the switch 7 alone is closed and the output of the NOR circuit 12 goes to the L level. On the other hand, only when the button 6 is depressed, the switch 8 alone is closed and the output of the AND circuit 11 reaches the L level. When both the buttons are depressed simultanelusly, the output of the circuit 11 goes to the H level. Therefore, with the depressing of the button 6, the lap time can be detected while with the simultaneous depressing of the buttons 5 and 6, the goal time can be done.
COPYRIGHT: (C)1980,JPO&Japio
JP3594179A 1979-03-27 1979-03-27 Controlling device for electronic stop watch Pending JPS55128183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3594179A JPS55128183A (en) 1979-03-27 1979-03-27 Controlling device for electronic stop watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3594179A JPS55128183A (en) 1979-03-27 1979-03-27 Controlling device for electronic stop watch

Publications (1)

Publication Number Publication Date
JPS55128183A true JPS55128183A (en) 1980-10-03

Family

ID=12456030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3594179A Pending JPS55128183A (en) 1979-03-27 1979-03-27 Controlling device for electronic stop watch

Country Status (1)

Country Link
JP (1) JPS55128183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11921470B2 (en) 2018-03-23 2024-03-05 Casio Computer Co., Ltd. Device with buttons and electronic timepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11921470B2 (en) 2018-03-23 2024-03-05 Casio Computer Co., Ltd. Device with buttons and electronic timepiece

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