JPS5786923A - Intersubsystem time coincidence system - Google Patents

Intersubsystem time coincidence system

Info

Publication number
JPS5786923A
JPS5786923A JP55163042A JP16304280A JPS5786923A JP S5786923 A JPS5786923 A JP S5786923A JP 55163042 A JP55163042 A JP 55163042A JP 16304280 A JP16304280 A JP 16304280A JP S5786923 A JPS5786923 A JP S5786923A
Authority
JP
Japan
Prior art keywords
time
internal
timer
subsystem
function
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
JP55163042A
Other languages
Japanese (ja)
Inventor
Morihiko Mizukami
Takaharu Kobayashi
Takashi Sugiura
Masao Kumanishi
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.)
Fujitsu Ltd
KDDI Corp
Original Assignee
Fujitsu Ltd
Kokusai Denshin Denwa KK
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 Fujitsu Ltd, Kokusai Denshin Denwa KK filed Critical Fujitsu Ltd
Priority to JP55163042A priority Critical patent/JPS5786923A/en
Publication of JPS5786923A publication Critical patent/JPS5786923A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To achieve time coincidence with reference time can not be supplied from an external timer by transferring the measured time of the internal timer of a specific subsystem to another subsystem, and by making the measured time of the internal timer of each subsystem coincident by the transferred measured time. CONSTITUTION:Subsystems S0', S1' and S2' have internal timers T0, T1 and T2, respectively. When the subsystems S1' and S2' are started a time enquiring function ENQ is started and a time enquiry signal is sent to the S0' through a communicating function CU. The S0' starts a time casiting machine ANS to return a time signal which includes the time t0 of the internal timer read through a time updating function CTL. The S1' and S2' set the received time to times t1' and t2 of the internal timers. Thus, the time in this system is unified without the intervention of an external timer.
JP55163042A 1980-11-19 1980-11-19 Intersubsystem time coincidence system Pending JPS5786923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55163042A JPS5786923A (en) 1980-11-19 1980-11-19 Intersubsystem time coincidence system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55163042A JPS5786923A (en) 1980-11-19 1980-11-19 Intersubsystem time coincidence system

Publications (1)

Publication Number Publication Date
JPS5786923A true JPS5786923A (en) 1982-05-31

Family

ID=15766073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55163042A Pending JPS5786923A (en) 1980-11-19 1980-11-19 Intersubsystem time coincidence system

Country Status (1)

Country Link
JP (1) JPS5786923A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066538A (en) * 1983-08-31 1985-04-16 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of synchronizing clock
JPS60239819A (en) * 1984-05-15 1985-11-28 Fuji Xerox Co Ltd Time correcting device for information processor
JPH0321178A (en) * 1989-06-16 1991-01-29 Sanyo Electric Co Ltd Method for controlling synchronous reproduction of static image and sound

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152407A (en) * 1974-05-31 1975-12-08
JPS5397348A (en) * 1977-02-04 1978-08-25 Nec Corp Correctable timing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50152407A (en) * 1974-05-31 1975-12-08
JPS5397348A (en) * 1977-02-04 1978-08-25 Nec Corp Correctable timing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066538A (en) * 1983-08-31 1985-04-16 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of synchronizing clock
JPS60239819A (en) * 1984-05-15 1985-11-28 Fuji Xerox Co Ltd Time correcting device for information processor
JPH0321178A (en) * 1989-06-16 1991-01-29 Sanyo Electric Co Ltd Method for controlling synchronous reproduction of static image and sound

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