JPS5644880A - Time generating device - Google Patents

Time generating device

Info

Publication number
JPS5644880A
JPS5644880A JP12136979A JP12136979A JPS5644880A JP S5644880 A JPS5644880 A JP S5644880A JP 12136979 A JP12136979 A JP 12136979A JP 12136979 A JP12136979 A JP 12136979A JP S5644880 A JPS5644880 A JP S5644880A
Authority
JP
Japan
Prior art keywords
time information
circuit
register
detected
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.)
Granted
Application number
JP12136979A
Other languages
Japanese (ja)
Other versions
JPS6365914B2 (en
Inventor
Kenichi Tsukioka
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 JP12136979A priority Critical patent/JPS5644880A/en
Publication of JPS5644880A publication Critical patent/JPS5644880A/en
Publication of JPS6365914B2 publication Critical patent/JPS6365914B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To provide an information for searching an obstacle to a customer engineers by stopping a renewal of a memory circuit storages a time information therein when an abnormal condition is detected in one clock circuit of doubled clock circuits. CONSTITUTION:When an abnormality of a time information 100 in a clock circuit 100 is detected by a check circuit 20, error signals 104 and 105 become ''1'' and ''0'' respectively, and a control circuit 40 prepares a selection signal 108 so that a selection circuit 60 may select a time information 101. Further, the control circuit 40 is adapted so that a register setting display signal 109 of the register 70 may be ''0'' after setting the time information 101 selected by the selection signal 108 and a set of the time information to the register 70 hereafter may not be performed since the error signal becomes 1.
JP12136979A 1979-09-20 1979-09-20 Time generating device Granted JPS5644880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12136979A JPS5644880A (en) 1979-09-20 1979-09-20 Time generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12136979A JPS5644880A (en) 1979-09-20 1979-09-20 Time generating device

Publications (2)

Publication Number Publication Date
JPS5644880A true JPS5644880A (en) 1981-04-24
JPS6365914B2 JPS6365914B2 (en) 1988-12-19

Family

ID=14809526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12136979A Granted JPS5644880A (en) 1979-09-20 1979-09-20 Time generating device

Country Status (1)

Country Link
JP (1) JPS5644880A (en)

Also Published As

Publication number Publication date
JPS6365914B2 (en) 1988-12-19

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