JPS5481876A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5481876A
JPS5481876A JP14949077A JP14949077A JPS5481876A JP S5481876 A JPS5481876 A JP S5481876A JP 14949077 A JP14949077 A JP 14949077A JP 14949077 A JP14949077 A JP 14949077A JP S5481876 A JPS5481876 A JP S5481876A
Authority
JP
Japan
Prior art keywords
counter
circuit
time
output
thru
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
JP14949077A
Other languages
Japanese (ja)
Inventor
Takuro Fukuichi
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 JP14949077A priority Critical patent/JPS5481876A/en
Publication of JPS5481876A publication Critical patent/JPS5481876A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)

Abstract

PURPOSE: To let warning be produced when the preset time becomes zero by providing a means of beforehand storing the arbitrary time to be down-counted.
CONSTITUTION: The output of an oscillation circuit 2 which has a crystal vibrator 1 is divided down to the time counting signals with a frequency dividing circuit 3. These signals are then inputted to a gate 9 for down-counter and a time counter 4. The contents having been counted in the time counter 4 are inputted to one of a display changeover line 10. Three memory circuits 5a thru 5c are set at arbitrary times by the outputs, i.e., set signals 23a thru 23c, of a SW circuit 18 by the operation of SW 17. The contents of the counter of the memory circuits 5a thru 5c are transmitted via display changeover line 6 to a preset circuit 7 by the output from the SW circuit 18 and further are selected by the signal of the circuit 18. These are then subtracted at every 1 second when the gate 9 is ON. The output of the down-counter 8 is connected to the other input of the display changeover line 10 and the contents of the time counter 4 and down-counter 8 are displayed in a display body 12 via driver 11 by the output of the SW circuit 18. A detection 13 causes a speaker 16 to sound when the counter 8 becomes zero.
COPYRIGHT: (C)1979,JPO&Japio
JP14949077A 1977-12-12 1977-12-12 Electronic watch Pending JPS5481876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14949077A JPS5481876A (en) 1977-12-12 1977-12-12 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14949077A JPS5481876A (en) 1977-12-12 1977-12-12 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5481876A true JPS5481876A (en) 1979-06-29

Family

ID=15476281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14949077A Pending JPS5481876A (en) 1977-12-12 1977-12-12 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5481876A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990972A (en) * 1972-12-28 1974-08-30
JPS529852B2 (en) * 1971-10-26 1977-03-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529852B2 (en) * 1971-10-26 1977-03-18
JPS4990972A (en) * 1972-12-28 1974-08-30

Similar Documents

Publication Publication Date Title
GB1415342A (en) Speed measurement and indication apparatus
JPS5633587A (en) Electronic watch
JPS5481876A (en) Electronic watch
JPS5513806A (en) Multifunction electronic timepiece
HK52283A (en) Electronic timepiece
JPS553238A (en) Reception frequency display system
JPS5486377A (en) Electronic watch
JPS55132983A (en) Time announcement device of electronic watch
JPS5719689A (en) Electronic clock
JPS5362571A (en) Electronic watch with stop watch
JPS5338935A (en) Driving device for liquid crystal display unit
JPS57578A (en) Electronic timepiece
JPS5520475A (en) Electronic watch with stop watch
JPS5756780A (en) Electronic clock
JPS55101078A (en) Electronic watch
JPS5545291A (en) Pulse multiplying circuit
JPS54119276A (en) Regulation adjustment device of electronic watches
JPS54145579A (en) Alarm device of hand display type electronic watch
JPS5672388A (en) Electronic device with time-caster
JPS5481874A (en) Electronic watch
JPS54150169A (en) Multialarm watch
JPS57146183A (en) Electronic watch with chronograph
JPS5491277A (en) Electronic watch with signaling function
JPS55117973A (en) Period measuring unit
JPS54101373A (en) Electronic chronograph