JPS552927A - Automatic time correction device - Google Patents
Automatic time correction deviceInfo
- Publication number
- JPS552927A JPS552927A JP7565978A JP7565978A JPS552927A JP S552927 A JPS552927 A JP S552927A JP 7565978 A JP7565978 A JP 7565978A JP 7565978 A JP7565978 A JP 7565978A JP S552927 A JPS552927 A JP S552927A
- Authority
- JP
- Japan
- Prior art keywords
- clock
- signal
- time
- time information
- circuit
- 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)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To eliminate manual time correction work, by comparing a standard signal, such as the Telephone No.117 Time Information signal, with a time being compared, and correcting it is accordance with the result of comparison.
CONSTITUTION: A 117 Time Information Service signal is input to telephone connection terminal 1. Error detection circuit 8 compares the time signal from clock 12 and the 117 Time Information Service signal and determines whether the clock is fast or slow, and sends the time difference between them to arithmetic circuit 9. Signal control circuit 11 controls the reference clock of clock 12 and the output clock of phse shift circuit 10 in accordance with the signal from arithmetic circuit 9 and gives an output to counter 4 of the clock, and thereby the speed of the clock is controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7565978A JPS552927A (en) | 1978-06-21 | 1978-06-21 | Automatic time correction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7565978A JPS552927A (en) | 1978-06-21 | 1978-06-21 | Automatic time correction device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS552927A true JPS552927A (en) | 1980-01-10 |
Family
ID=13582571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7565978A Pending JPS552927A (en) | 1978-06-21 | 1978-06-21 | Automatic time correction device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS552927A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735780A (en) * | 1980-06-19 | 1982-02-26 | Shiyurutsu Ueruneru | Method of automatically adjusting radio-built-in watch by time signal |
US4394539A (en) * | 1981-03-24 | 1983-07-19 | Chu Tsan Chen | Timepiece with automatic time setting system thru dial telephone line and automatic speed adjusting system |
JP4773021B2 (en) * | 1999-12-16 | 2011-09-14 | フレニ・ブレンボ エス・ピー・エー | Retainer clip for brake pad support pin |
-
1978
- 1978-06-21 JP JP7565978A patent/JPS552927A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5735780A (en) * | 1980-06-19 | 1982-02-26 | Shiyurutsu Ueruneru | Method of automatically adjusting radio-built-in watch by time signal |
US4394539A (en) * | 1981-03-24 | 1983-07-19 | Chu Tsan Chen | Timepiece with automatic time setting system thru dial telephone line and automatic speed adjusting system |
JP4773021B2 (en) * | 1999-12-16 | 2011-09-14 | フレニ・ブレンボ エス・ピー・エー | Retainer clip for brake pad support pin |
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