JPS55101075A - Electronic watch with reset-to-zero unit - Google Patents
Electronic watch with reset-to-zero unitInfo
- Publication number
- JPS55101075A JPS55101075A JP903679A JP903679A JPS55101075A JP S55101075 A JPS55101075 A JP S55101075A JP 903679 A JP903679 A JP 903679A JP 903679 A JP903679 A JP 903679A JP S55101075 A JPS55101075 A JP S55101075A
- Authority
- JP
- Japan
- Prior art keywords
- time
- reset
- seconds
- zero
- minute 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
Links
Landscapes
- Electric Clocks (AREA)
Abstract
PURPOSE: To make accurate time corrections of an electronic watch with a 30-second distributing reset-to-zero unit, by making it possible to correct a minute counter by unit time only during a constant period of time even when reset-to-zero operation would be done in a state of an error of more than 30 seconds.
CONSTITUTION: In case of a difference of -30W+29 seconds from a correct time, closing reset-to-zero switch SW resets divider circuit 2 and second counter 3 and when the time is late, carry pulse PC is applied to minute counter 3. At the time of an advance within a range of 30W59 seconds, operating the reset-to-zero twice disallows carry pulse PC after one minute to pass through AND1 by output Q3 of shift register 8 and minute counter 3 continues its current state for two minutes and is initialized by reset pulse pr after the operation time of timer 11. At the time of delay of 31W59 seconds, operating switch SW three times differentiate output Q4 of shift register 8 to apply it to minute counter 5 as a carry signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP903679A JPS55101075A (en) | 1979-01-29 | 1979-01-29 | Electronic watch with reset-to-zero unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP903679A JPS55101075A (en) | 1979-01-29 | 1979-01-29 | Electronic watch with reset-to-zero unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55101075A true JPS55101075A (en) | 1980-08-01 |
Family
ID=11709416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP903679A Pending JPS55101075A (en) | 1979-01-29 | 1979-01-29 | Electronic watch with reset-to-zero unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55101075A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01107993U (en) * | 1988-01-13 | 1989-07-20 |
-
1979
- 1979-01-29 JP JP903679A patent/JPS55101075A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01107993U (en) * | 1988-01-13 | 1989-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5452578A (en) | Stopwatch | |
JPS5515053A (en) | Electronic watch | |
JPS5354063A (en) | Electronic clock | |
JPS55101075A (en) | Electronic watch with reset-to-zero unit | |
JPS55123239A (en) | Programmable divider | |
JPS5270446A (en) | Display circuit for digital timer for electronic oven | |
JPS5498655A (en) | Functioned electronic watch | |
JPS5421880A (en) | Electronic alarm watch | |
JPS5378725A (en) | Process circuit for color video signal | |
JPS5651690A (en) | Electronic watch | |
JPS5590883A (en) | Clock | |
JPS5515036A (en) | Digital chronograph | |
JPS5619479A (en) | Electronic timer | |
JPS5593084A (en) | Electronic watch | |
JPS5666786A (en) | Electronic wrist watch attached stopwatch | |
JPS5547477A (en) | Count-back watch | |
JPS5540952A (en) | Temperature measurement unit | |
JPS5424065A (en) | Analog type electronic watch with alarm function | |
JPS55676A (en) | Pulse delay circuit | |
JPS5467464A (en) | Electronic digital watch | |
JPS53104277A (en) | Electronic watch | |
JPS55166085A (en) | Counting information correcting system for electronic watch | |
JPS5487273A (en) | Electronic watch | |
JPS52141671A (en) | Digital display electronic watch with stop watch | |
JPS55160893A (en) | Electronic watch |