JPS643590A - Time signal generator - Google Patents

Time signal generator

Info

Publication number
JPS643590A
JPS643590A JP62158348A JP15834887A JPS643590A JP S643590 A JPS643590 A JP S643590A JP 62158348 A JP62158348 A JP 62158348A JP 15834887 A JP15834887 A JP 15834887A JP S643590 A JPS643590 A JP S643590A
Authority
JP
Japan
Prior art keywords
time
time signal
memory
signal generating
generating means
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.)
Granted
Application number
JP62158348A
Other languages
Japanese (ja)
Other versions
JP2576125B2 (en
Inventor
Shinichi Fujita
Michio Mita
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP62158348A priority Critical patent/JP2576125B2/en
Publication of JPS643590A publication Critical patent/JPS643590A/en
Application granted granted Critical
Publication of JP2576125B2 publication Critical patent/JP2576125B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To reduce electric power consumption by providing a count means which counts low-frequency signals while the drop of a source voltage is detected, time signal generating means which generates time signals and memory means. CONSTITUTION:A time signal generator is so constituted that current flows transiently for a prescribed period to the time signal generating means 4 in a backup state 9. The count value read out of the frame counter 3 is time- converted and is then added to the time data saved in the memory 5 through a data bus Bg during a prescribed period. The circuits which operate during the operation stop of the time signal generating means 4 in this case are only the min. circuits including the frame counter 3, the memory 5, a source voltage detecting circuit 6, etc., and the operation time is extremely short as shown in 10, 10a and, therefore, the electric power consumed by a capacitor for backup is extremely small.
JP62158348A 1987-06-25 1987-06-25 Time signal generator Expired - Lifetime JP2576125B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62158348A JP2576125B2 (en) 1987-06-25 1987-06-25 Time signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62158348A JP2576125B2 (en) 1987-06-25 1987-06-25 Time signal generator

Publications (2)

Publication Number Publication Date
JPS643590A true JPS643590A (en) 1989-01-09
JP2576125B2 JP2576125B2 (en) 1997-01-29

Family

ID=15669682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62158348A Expired - Lifetime JP2576125B2 (en) 1987-06-25 1987-06-25 Time signal generator

Country Status (1)

Country Link
JP (1) JP2576125B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03110059A (en) * 1989-09-22 1991-05-10 Kawasaki Steel Corp Method and apparatus for removing impurity in molten metal
JP2008502884A (en) * 2004-06-15 2008-01-31 ユングハンス、ウーレン、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング Method and apparatus for setting date display after battery replacement in a watch, particularly a radio-controlled watch
JP2016225706A (en) * 2015-05-27 2016-12-28 キヤノン株式会社 Video recorder, control method therefor, and program, and storge medium
DE102021109587A1 (en) 2020-06-04 2021-12-09 Mitsubishi Electric Corporation Semiconductor device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569086A (en) * 1978-11-17 1980-05-24 Matsushita Electric Ind Co Ltd Timer circuit
JPS58113889A (en) * 1981-12-28 1983-07-06 Matsushita Electric Ind Co Ltd Timer device
JPS6154291U (en) * 1984-09-14 1986-04-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569086A (en) * 1978-11-17 1980-05-24 Matsushita Electric Ind Co Ltd Timer circuit
JPS58113889A (en) * 1981-12-28 1983-07-06 Matsushita Electric Ind Co Ltd Timer device
JPS6154291U (en) * 1984-09-14 1986-04-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03110059A (en) * 1989-09-22 1991-05-10 Kawasaki Steel Corp Method and apparatus for removing impurity in molten metal
JP2008502884A (en) * 2004-06-15 2008-01-31 ユングハンス、ウーレン、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング Method and apparatus for setting date display after battery replacement in a watch, particularly a radio-controlled watch
JP2016225706A (en) * 2015-05-27 2016-12-28 キヤノン株式会社 Video recorder, control method therefor, and program, and storge medium
DE102021109587A1 (en) 2020-06-04 2021-12-09 Mitsubishi Electric Corporation Semiconductor device

Also Published As

Publication number Publication date
JP2576125B2 (en) 1997-01-29

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