JPS55132981A - Digital watch - Google Patents

Digital watch

Info

Publication number
JPS55132981A
JPS55132981A JP3982179A JP3982179A JPS55132981A JP S55132981 A JPS55132981 A JP S55132981A JP 3982179 A JP3982179 A JP 3982179A JP 3982179 A JP3982179 A JP 3982179A JP S55132981 A JPS55132981 A JP S55132981A
Authority
JP
Japan
Prior art keywords
time
display part
minute
signal
digit display
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
JP3982179A
Other languages
Japanese (ja)
Inventor
Naohiko Koizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3982179A priority Critical patent/JPS55132981A/en
Publication of JPS55132981A publication Critical patent/JPS55132981A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)

Abstract

PURPOSE: To make possible the accurate detection with a simple circuit constitution by generating the time announcement signal at every just time based on the signal driving the specified segments of the time display part.
CONSTITUTION: The 1-minute digit display part 27, 10-minute digit display part 26, 1-hour digit display part 24 and 10-hour digit display part 23 arrayed with plural segments in the specified patterns are provided and the displays of the respective display parts are subsequently changed over based on the watch signal from an IC1, whereby the displaying of the time, minute by minute, is accomplished. In this case, the signal driving the segment (g) of the 10-minute digit display part 26 is led into a time announcement signal circuit 4, by which the time announcement signal is generated at every just time, and the time announcing sound is produced by this time announcement signal.
COPYRIGHT: (C)1980,JPO&Japio
JP3982179A 1979-04-04 1979-04-04 Digital watch Pending JPS55132981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3982179A JPS55132981A (en) 1979-04-04 1979-04-04 Digital watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3982179A JPS55132981A (en) 1979-04-04 1979-04-04 Digital watch

Publications (1)

Publication Number Publication Date
JPS55132981A true JPS55132981A (en) 1980-10-16

Family

ID=12563631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3982179A Pending JPS55132981A (en) 1979-04-04 1979-04-04 Digital watch

Country Status (1)

Country Link
JP (1) JPS55132981A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113254A (en) * 1976-03-19 1977-09-22 Matsushita Electric Ind Co Ltd Digital clock for time signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113254A (en) * 1976-03-19 1977-09-22 Matsushita Electric Ind Co Ltd Digital clock for time signal

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