CA1142239A - Variable frequency logic clock - Google Patents

Variable frequency logic clock

Info

Publication number
CA1142239A
CA1142239A CA000350922A CA350922A CA1142239A CA 1142239 A CA1142239 A CA 1142239A CA 000350922 A CA000350922 A CA 000350922A CA 350922 A CA350922 A CA 350922A CA 1142239 A CA1142239 A CA 1142239A
Authority
CA
Canada
Prior art keywords
clock signal
clock
cycle
tap
delay line
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
CA000350922A
Other languages
English (en)
French (fr)
Inventor
David G. Kaminski
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.)
Unisys Corp
Original Assignee
Sperry 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 Sperry Corp filed Critical Sperry Corp
Application granted granted Critical
Publication of CA1142239A publication Critical patent/CA1142239A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/64—Generators producing trains of pulses, i.e. finite sequences of pulses
    • H03K3/72—Generators producing trains of pulses, i.e. finite sequences of pulses with means for varying repetition rate of trains
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration
    • H03K5/06—Shaping pulses by increasing duration; by decreasing duration by the use of delay lines or other analogue delay elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Pulse Circuits (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Manipulation Of Pulses (AREA)
CA000350922A 1979-09-04 1980-04-30 Variable frequency logic clock Expired CA1142239A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71,810 1979-09-04
US06/071,810 US4316148A (en) 1979-09-04 1979-09-04 Variable frequency logic clock

Publications (1)

Publication Number Publication Date
CA1142239A true CA1142239A (en) 1983-03-01

Family

ID=22103742

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000350922A Expired CA1142239A (en) 1979-09-04 1980-04-30 Variable frequency logic clock

Country Status (4)

Country Link
US (1) US4316148A (esLanguage)
JP (2) JPS5667533U (esLanguage)
CA (1) CA1142239A (esLanguage)
DE (1) DE3032568C2 (esLanguage)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414637A (en) * 1981-01-13 1983-11-08 Honeywell Information Systems Inc. Adjustable clock system having a dynamically selectable clock period
US4684897A (en) * 1984-01-03 1987-08-04 Raytheon Company Frequency correction apparatus
US4587531A (en) * 1984-11-05 1986-05-06 Eastman Kodak Company Clock signal producing apparatus
US4868514A (en) * 1987-11-17 1989-09-19 International Business Machines Corporation Apparatus and method for digital compensation of oscillator drift
GB8818665D0 (en) * 1988-08-05 1988-09-07 Crosfield Electronics Ltd Methods & apparatus for synchronising clock signals
DE3843261A1 (de) * 1988-12-22 1990-06-28 Ant Nachrichtentech Schaltungsanordnung zur steuerung der phase eines taktsignals
GB2234371A (en) * 1989-07-07 1991-01-30 Inmos Ltd Clock generation
US5126592A (en) * 1989-10-05 1992-06-30 Nguyen Nam K Circuit having a delay line for use in a data processing system or logic system
EP0570158B1 (en) * 1992-05-08 2000-01-19 National Semiconductor Corporation Frequency multiplication circuit and method for generating a stable clock signal
US6064707A (en) 1995-12-22 2000-05-16 Zilog, Inc. Apparatus and method for data synchronizing and tracking
CN100422901C (zh) * 2004-03-04 2008-10-01 Nxp股份有限公司 可编程时钟生成
TWI257482B (en) * 2004-12-15 2006-07-01 Spirox Corp Method and apparatus for measuring jitter of signal
US10633730B2 (en) 2014-09-05 2020-04-28 Jfe Steel Corporation Material for cold-rolled stainless steel sheet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65949A (esLanguage) *
US3422423A (en) * 1965-01-04 1969-01-14 Sperry Rand Corp Digital-to-analog converter
US4165490A (en) * 1977-12-19 1979-08-21 International Business Machines Corporation Clock pulse generator with selective pulse delay and pulse width control

Also Published As

Publication number Publication date
DE3032568A1 (de) 1981-03-19
JPS6256529B2 (esLanguage) 1987-11-26
JPS62187920A (ja) 1987-08-17
US4316148A (en) 1982-02-16
DE3032568C2 (de) 1988-07-07
JPS5667533U (esLanguage) 1981-06-05

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