JPS57192894A - Electronic clock - Google Patents

Electronic clock

Info

Publication number
JPS57192894A
JPS57192894A JP56078955A JP7895581A JPS57192894A JP S57192894 A JPS57192894 A JP S57192894A JP 56078955 A JP56078955 A JP 56078955A JP 7895581 A JP7895581 A JP 7895581A JP S57192894 A JPS57192894 A JP S57192894A
Authority
JP
Japan
Prior art keywords
signal
cycle
correction
time counting
electronic clock
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
JP56078955A
Other languages
Japanese (ja)
Inventor
Hiromoto Yamane
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56078955A priority Critical patent/JPS57192894A/en
Publication of JPS57192894A publication Critical patent/JPS57192894A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses

Abstract

PURPOSE:To obtain an electronic clock enabling reduction of frequency of correction of an indicated time by determining the directions of gaining and losing and thereby correcting a cycle of a time counting signal step by step. CONSTITUTION:When a correction signal is given from an indication correcting input part 15, a correction signal controlling part 18 impresses a decision signal of gaining and losing of a clock on a time counting signal generating part 11. By this impression, a time counting cycle is shifted by one step and thereby the cycle of a second pulse impressed on a second counter part 12 delivering a minute signal is adjusted. By the repetition of the same operation, the cycle of a time counting signal is corrected gradually in the prescribed direction step by step, and thus an electronic clock enabling reduction of the frequency of the correction of indication is obtained.
JP56078955A 1981-05-25 1981-05-25 Electronic clock Pending JPS57192894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56078955A JPS57192894A (en) 1981-05-25 1981-05-25 Electronic clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56078955A JPS57192894A (en) 1981-05-25 1981-05-25 Electronic clock

Publications (1)

Publication Number Publication Date
JPS57192894A true JPS57192894A (en) 1982-11-27

Family

ID=13676304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56078955A Pending JPS57192894A (en) 1981-05-25 1981-05-25 Electronic clock

Country Status (1)

Country Link
JP (1) JPS57192894A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516578A (en) * 1974-07-04 1976-01-20 Citizen Watch Co Ltd Denshidokeino kiseisochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516578A (en) * 1974-07-04 1976-01-20 Citizen Watch Co Ltd Denshidokeino kiseisochi

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