JPS5567858A - Miniature electronic apparatus - Google Patents

Miniature electronic apparatus

Info

Publication number
JPS5567858A
JPS5567858A JP13978878A JP13978878A JPS5567858A JP S5567858 A JPS5567858 A JP S5567858A JP 13978878 A JP13978878 A JP 13978878A JP 13978878 A JP13978878 A JP 13978878A JP S5567858 A JPS5567858 A JP S5567858A
Authority
JP
Japan
Prior art keywords
sub
minutes
keys
key
add
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
JP13978878A
Other languages
Japanese (ja)
Inventor
Ichiro Sado
Shigeharu Kishimoto
Masayuki Sasaki
Mitsuo Cho
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP13978878A priority Critical patent/JPS5567858A/en
Publication of JPS5567858A publication Critical patent/JPS5567858A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To decrease the number of the keys by decreasing the number of the timer time setting keys with a combined use of these keys and also securing the multi- frequency hitting of the same key.
CONSTITUTION: Keys K1, K5, K10 and K60 are provided for use in 1 minute, 5 minutes, 10 minutes and 60 minutes each. With a push of K5, the key signal is delivered from key signal short-time generator OS2, and thus the code signal is applied to adder ADD from code signal generator CG2 to be supplied to subtractor SUB after addition with the contents (0 presently) of memory unit R1. The output of SUB is supplied to zero detector circuit ZD and R1 to be displayed at display unit DIS. The information circulates R1, ADD and SUB. Time signal generator CLK operates simultaneously with the key setting to give the signals to SUB every minute for execution of the subtraction. The output of SUB is detected by ZD when it becomes zero, and thus alarm means ALM is driven. For setting of 37 minutes, K10, K5 and K1 are operated three times, once and twice respectively, and then an addition is carried out through R1 and ADD.
COPYRIGHT: (C)1980,JPO&Japio
JP13978878A 1978-11-15 1978-11-15 Miniature electronic apparatus Pending JPS5567858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13978878A JPS5567858A (en) 1978-11-15 1978-11-15 Miniature electronic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13978878A JPS5567858A (en) 1978-11-15 1978-11-15 Miniature electronic apparatus

Publications (1)

Publication Number Publication Date
JPS5567858A true JPS5567858A (en) 1980-05-22

Family

ID=15253433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13978878A Pending JPS5567858A (en) 1978-11-15 1978-11-15 Miniature electronic apparatus

Country Status (1)

Country Link
JP (1) JPS5567858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151083A (en) * 1983-02-17 1984-08-29 Seiko Epson Corp Wrist watch with timer function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151083A (en) * 1983-02-17 1984-08-29 Seiko Epson Corp Wrist watch with timer function

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