DE59608560D1 - Process for accelerated tracking of a time after an undervoltage - Google Patents

Process for accelerated tracking of a time after an undervoltage

Info

Publication number
DE59608560D1
DE59608560D1 DE59608560T DE59608560T DE59608560D1 DE 59608560 D1 DE59608560 D1 DE 59608560D1 DE 59608560 T DE59608560 T DE 59608560T DE 59608560 T DE59608560 T DE 59608560T DE 59608560 D1 DE59608560 D1 DE 59608560D1
Authority
DE
Germany
Prior art keywords
time
accelerated
undervoltage
restored
operating voltage
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.)
Expired - Fee Related
Application number
DE59608560T
Other languages
German (de)
Inventor
Stefan Jack
Thomas Weiss
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.)
Siemens Building Technologies AG
Original Assignee
Siemens Building Technologies AG
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 Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Application granted granted Critical
Publication of DE59608560D1 publication Critical patent/DE59608560D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/02—Conversion or regulation of current or voltage
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/10—Arrangements for supplying back-up power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)
  • Debugging And Monitoring (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The time correction method has a microcomputer (11) which stores the measured time interval of an interruption in the normal operating voltage, allowing accelerated correction of the time after the normal operating voltage is restored by multiplying the frequency of the indexing pulses for the clock by a given factor. The stored interruption time interval held in the microprocessor is indexed backwards during the accelerated time correction, with the normal indexing frequency restored when the zero value is reached.
DE59608560T 1996-05-21 1996-05-21 Process for accelerated tracking of a time after an undervoltage Expired - Fee Related DE59608560D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96108051A EP0809161B1 (en) 1996-05-21 1996-05-21 Means for the accelerated correction of the time after a low supply voltage

Publications (1)

Publication Number Publication Date
DE59608560D1 true DE59608560D1 (en) 2002-02-14

Family

ID=8222801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59608560T Expired - Fee Related DE59608560D1 (en) 1996-05-21 1996-05-21 Process for accelerated tracking of a time after an undervoltage

Country Status (4)

Country Link
EP (1) EP0809161B1 (en)
AT (1) ATE211832T1 (en)
CZ (1) CZ153897A3 (en)
DE (1) DE59608560D1 (en)

Family Cites Families (4)

* 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
US4751521A (en) * 1985-09-24 1988-06-14 Seikosha Co., Ltd. Time recorder with automatic correction for momentary discontinuation of power supply
JP2562371B2 (en) * 1990-01-16 1996-12-11 セイコー電子工業株式会社 Analog multifunction electronic clock
JPH087269B2 (en) * 1990-06-07 1996-01-29 セイコー電子工業株式会社 Electronic clock

Also Published As

Publication number Publication date
EP0809161B1 (en) 2002-01-09
EP0809161A1 (en) 1997-11-26
CZ153897A3 (en) 1997-12-17
ATE211832T1 (en) 2002-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee