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JPS574576A - Electronic watch with stopwatch and timer - Google Patents

Electronic watch with stopwatch and timer

Info

Publication number
JPS574576A
JPS574576A JP7801880A JP7801880A JPS574576A JP S574576 A JPS574576 A JP S574576A JP 7801880 A JP7801880 A JP 7801880A JP 7801880 A JP7801880 A JP 7801880A JP S574576 A JPS574576 A JP S574576A
Authority
JP
Japan
Prior art keywords
stopwatch
time
data
timer
counter
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
JP7801880A
Other languages
Japanese (ja)
Inventor
Yukio Yokozawa
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7801880A priority Critical patent/JPS574576A/en
Publication of JPS574576A publication Critical patent/JPS574576A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

PURPOSE: To decrease the number of counters and to realize the low powder consumption by computing the difference between the start time data stored in a data memory circuit and the time in a basic counter.
CONSTITUTION: At the time of the start of the stopwatch, the watch data from a second, minute, hour control circuit 7 of a basic watch is stored in a stopwatch timer data region 8. At the same time, since the counted value of a 1/100sec counter is given to the region 8, the start time data of the stopwatch is stored in the region 8. When the stopwatch is stopped, the value of the stopwatch can be obtained by subtracting the start time data from the time of the basic watch in an operation control circuit 9. At this time, only the 1/100sec counter 10 is operated. In the case of the timer, the same procedure is applied. Thus the low power consumption can be realized.
COPYRIGHT: (C)1982,JPO&Japio
JP7801880A 1980-06-10 1980-06-10 Electronic watch with stopwatch and timer Pending JPS574576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7801880A JPS574576A (en) 1980-06-10 1980-06-10 Electronic watch with stopwatch and timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7801880A JPS574576A (en) 1980-06-10 1980-06-10 Electronic watch with stopwatch and timer

Publications (1)

Publication Number Publication Date
JPS574576A true JPS574576A (en) 1982-01-11

Family

ID=13650048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7801880A Pending JPS574576A (en) 1980-06-10 1980-06-10 Electronic watch with stopwatch and timer

Country Status (1)

Country Link
JP (1) JPS574576A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502982A (en) * 1973-05-09 1975-01-13
JPS5229259A (en) * 1975-08-29 1977-03-04 Toshiba Corp Electronic clock
JPS5232376A (en) * 1975-09-05 1977-03-11 Toshiba Corp Time calculation apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502982A (en) * 1973-05-09 1975-01-13
JPS5229259A (en) * 1975-08-29 1977-03-04 Toshiba Corp Electronic clock
JPS5232376A (en) * 1975-09-05 1977-03-11 Toshiba Corp Time calculation apparatus

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