CA1153472A - Time of day clock control - Google Patents

Time of day clock control

Info

Publication number
CA1153472A
CA1153472A CA000363546A CA363546A CA1153472A CA 1153472 A CA1153472 A CA 1153472A CA 000363546 A CA000363546 A CA 000363546A CA 363546 A CA363546 A CA 363546A CA 1153472 A CA1153472 A CA 1153472A
Authority
CA
Canada
Prior art keywords
time
clock
day
binary
register
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
Application number
CA000363546A
Other languages
English (en)
French (fr)
Inventor
David C. Chang
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1153472A publication Critical patent/CA1153472A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4825—Interrupt from clock, e.g. time of day
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass
    • G04G99/006—Electronic time-pieces using a microcomputer, e.g. for multi-function clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Clocks (AREA)
CA000363546A 1979-12-28 1980-10-29 Time of day clock control Expired CA1153472A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US107,811 1979-12-28
US06/107,811 US4349890A (en) 1979-12-28 1979-12-28 Time of day clock control

Publications (1)

Publication Number Publication Date
CA1153472A true CA1153472A (en) 1983-09-06

Family

ID=22318609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000363546A Expired CA1153472A (en) 1979-12-28 1980-10-29 Time of day clock control

Country Status (5)

Country Link
US (1) US4349890A (en, 2012)
EP (1) EP0031403B1 (en, 2012)
JP (1) JPS56103392A (en, 2012)
CA (1) CA1153472A (en, 2012)
DE (1) DE3065472D1 (en, 2012)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388688A (en) * 1981-11-10 1983-06-14 International Business Machines Corp. Shared TOD clock modification bit
US5809540A (en) * 1995-12-04 1998-09-15 Unisys Corporation Processor command for prompting a storage controller to write a day clock value to specified memory location
US5617375A (en) * 1995-12-04 1997-04-01 Unisys Corporation Dayclock carry and compare tree
US7689207B2 (en) * 2005-10-17 2010-03-30 Harris Corporation Time of day synchronization and distribution within a multiprocessor embedded system and related methods
US8498629B2 (en) * 2005-10-18 2013-07-30 Harris Corporation Extensible human machine interface (HMI) plugin architecture for radio software system and related method
US7809410B2 (en) 2005-11-15 2010-10-05 Harris Corporation Power management system for SCA based software defined radio and related method
US7499724B2 (en) * 2006-01-30 2009-03-03 Harris Corporation Event sequencer used for controlling the sequence and timing of events in software defined radio
US7937076B2 (en) * 2007-03-07 2011-05-03 Harris Corporation Software defined radio for loading waveform components at runtime in a software communications architecture (SCA) framework

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248707A (en) * 1961-11-14 1966-04-26 Ibm Semi-asynchronous clock system
CH554015A (en, 2012) * 1971-10-15 1974-09-13
US4093997A (en) * 1976-09-17 1978-06-06 General Electric Company Portable programmer for time-of-day metering register system and method of using same

Also Published As

Publication number Publication date
EP0031403A3 (en) 1981-07-15
JPS6260673B2 (en, 2012) 1987-12-17
EP0031403B1 (en) 1983-11-02
JPS56103392A (en) 1981-08-18
EP0031403A2 (en) 1981-07-08
DE3065472D1 (en) 1983-12-08
US4349890A (en) 1982-09-14

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Legal Events

Date Code Title Description
MKEX Expiry