JPS5642179A - Digital electronic time piece - Google Patents

Digital electronic time piece

Info

Publication number
JPS5642179A
JPS5642179A JP11757779A JP11757779A JPS5642179A JP S5642179 A JPS5642179 A JP S5642179A JP 11757779 A JP11757779 A JP 11757779A JP 11757779 A JP11757779 A JP 11757779A JP S5642179 A JPS5642179 A JP S5642179A
Authority
JP
Japan
Prior art keywords
time
address
ram7
circuit
displayed
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
JP11757779A
Other languages
Japanese (ja)
Inventor
Yosuke Yoshida
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 JP11757779A priority Critical patent/JPS5642179A/en
Publication of JPS5642179A publication Critical patent/JPS5642179A/en
Pending legal-status Critical Current

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  • Electric Clocks (AREA)

Abstract

PURPOSE: To enable to display the relation between the plural number of times to make alarm and the present time by a method wherein the plural times are sequentially read out from RAM by means of the stepping address and the residual times counted from the comparator is displayed.
CONSTITUTION: When a switch 11 is operated, 0 address of the RAM7 is addressed and a comparison circuit 8 counts the difference between the present time through a time counting counter 3 and the memory time read out of the RAM7. When this result is negative, the address is advanced via a memory address specification circuit 9. When it is positive, the residual time counted in the circuit 8 is output through a change-over circuit 4 which is switched by a specified cycle via a control circuit 10 and it is displayed in a display unit 6 as well as the present time and the alarm memory time through the counter 3 and the RAM7. The same display is performed for the plural number of times stored in the RAM7 by means of the address advance through the sequential operation of the switch 11, thus, the relation between the alarm time and the present time can be displayed.
COPYRIGHT: (C)1981,JPO&Japio
JP11757779A 1979-09-13 1979-09-13 Digital electronic time piece Pending JPS5642179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11757779A JPS5642179A (en) 1979-09-13 1979-09-13 Digital electronic time piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11757779A JPS5642179A (en) 1979-09-13 1979-09-13 Digital electronic time piece

Publications (1)

Publication Number Publication Date
JPS5642179A true JPS5642179A (en) 1981-04-20

Family

ID=14715256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11757779A Pending JPS5642179A (en) 1979-09-13 1979-09-13 Digital electronic time piece

Country Status (1)

Country Link
JP (1) JPS5642179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193389A (en) * 1983-04-19 1984-11-01 Seiko Epson Corp Electronic time piece with sound memory function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193389A (en) * 1983-04-19 1984-11-01 Seiko Epson Corp Electronic time piece with sound memory function

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