JPS5569082A - Time detecting method - Google Patents
Time detecting methodInfo
- Publication number
- JPS5569082A JPS5569082A JP14230078A JP14230078A JPS5569082A JP S5569082 A JPS5569082 A JP S5569082A JP 14230078 A JP14230078 A JP 14230078A JP 14230078 A JP14230078 A JP 14230078A JP S5569082 A JPS5569082 A JP S5569082A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- time
- interval
- time signal
- transient distortion
- 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
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To attain accurate time detection by measuring the length of the continuation of a time signal and its interval by a reference signal and also by removing a transient distortion component by providing a blind interval near the fall of the time signal.
CONSTITUTION: A sound signal including a time signal is inputted to input terminal IN and a circuit formed of flip-flops 1 and 2, counter 5, and gates 6W8 discriminates whether its continuation is equivalent to fixed length or not. Further, a circuit consisting of counter 9, flip-flops 10W12, and gates 13 and 14 measure the interval of signals and a blind interval where a generated transient distortion signal is insensitive is provided near the fall of the time signal so as to make a decision on a time signal pattern. Therefore, the transient distortion signal exerting an influence upon the decision on the time pattern is eliminated and digital desitions are made possible, so that accurate time detection can be achieved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14230078A JPS5569082A (en) | 1978-11-20 | 1978-11-20 | Time detecting method |
US06/094,631 US4358836A (en) | 1978-11-20 | 1979-11-15 | Electronic watch with an automatic time indication modifier |
FR7928488A FR2441876A1 (en) | 1978-11-20 | 1979-11-19 | ELECTRONIC WATCH WITH DEVICE FOR AUTOMATIC MODIFICATION OF THE TIME INDICATION |
DE19792946865 DE2946865A1 (en) | 1978-11-20 | 1979-11-20 | ELECTRONIC CLOCK |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14230078A JPS5569082A (en) | 1978-11-20 | 1978-11-20 | Time detecting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569082A true JPS5569082A (en) | 1980-05-24 |
Family
ID=15312161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14230078A Pending JPS5569082A (en) | 1978-11-20 | 1978-11-20 | Time detecting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569082A (en) |
-
1978
- 1978-11-20 JP JP14230078A patent/JPS5569082A/en active Pending
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