JPS5644881A - Time generating device - Google Patents

Time generating device

Info

Publication number
JPS5644881A
JPS5644881A JP12137079A JP12137079A JPS5644881A JP S5644881 A JPS5644881 A JP S5644881A JP 12137079 A JP12137079 A JP 12137079A JP 12137079 A JP12137079 A JP 12137079A JP S5644881 A JPS5644881 A JP S5644881A
Authority
JP
Japan
Prior art keywords
time information
circuit
register
clock circuit
generating device
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
JP12137079A
Other languages
Japanese (ja)
Inventor
Kiyotaka Ono
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 JP12137079A priority Critical patent/JPS5644881A/en
Publication of JPS5644881A publication Critical patent/JPS5644881A/en
Pending 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 obtain information for searching an obstacle by storing a normal time information of the system when an abnormal condition is detected in one clock circuit of the doubled clock circuit. CONSTITUTION:When an abnormality of a time information 100 in a clock circuit 10 is detected by a check circuit 20, error signal lines 104 and 105 becomes ''1'' and ''0'', and a control circuit 40 prepares a selection signal line 108 so that a selection circuit 60 may select a time information. Further, the control circuit 40 transmits a register setting display signal 109 to a register 70 since the signal line 104 becomes ''1'', thereby setting a normal time information 101 in register 70. When a clock circuit 11 is abnormal, the time information 100 is selected and set in the register 70.
JP12137079A 1979-09-20 1979-09-20 Time generating device Pending JPS5644881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12137079A JPS5644881A (en) 1979-09-20 1979-09-20 Time generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12137079A JPS5644881A (en) 1979-09-20 1979-09-20 Time generating device

Publications (1)

Publication Number Publication Date
JPS5644881A true JPS5644881A (en) 1981-04-24

Family

ID=14809550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12137079A Pending JPS5644881A (en) 1979-09-20 1979-09-20 Time generating device

Country Status (1)

Country Link
JP (1) JPS5644881A (en)

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