CA942387A - Variable frequency system - Google Patents

Variable frequency system

Info

Publication number
CA942387A
CA942387A CA111,027A CA111027A CA942387A CA 942387 A CA942387 A CA 942387A CA 111027 A CA111027 A CA 111027A CA 942387 A CA942387 A CA 942387A
Authority
CA
Canada
Prior art keywords
variable frequency
frequency system
variable
frequency
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
CA111,027A
Other versions
CA111027S (en
Inventor
Robert S. Jamieson
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.)
Lorain Products Corp
Original Assignee
Lorain Products 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 Lorain Products Corp filed Critical Lorain Products Corp
Application granted granted Critical
Publication of CA942387A publication Critical patent/CA942387A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CA111,027A 1970-04-30 1971-04-22 Variable frequency system Expired CA942387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3334370A 1970-04-30 1970-04-30

Publications (1)

Publication Number Publication Date
CA942387A true CA942387A (en) 1974-02-19

Family

ID=21869860

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111,027A Expired CA942387A (en) 1970-04-30 1971-04-22 Variable frequency system

Country Status (2)

Country Link
US (1) US3651414A (en)
CA (1) CA942387A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786488A (en) * 1971-12-30 1974-01-15 Woodward Governor Co Algebraic summing digital-to-analog converter
DE2220878C3 (en) * 1972-04-28 1982-04-22 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for digital frequency measurement
US3909791A (en) * 1972-06-28 1975-09-30 Ibm Selectively settable frequency divider
JPS5549458B2 (en) * 1972-08-10 1980-12-12
FR2241930B1 (en) * 1973-08-23 1976-06-18 Alsthom Cgee
JPS56169432A (en) * 1980-05-31 1981-12-26 Toshiba Corp Frequency dividing ratio setting circuit for programmable counter
US4573175A (en) * 1983-09-12 1986-02-25 Case Communications Inc. Variable digital frequency generator with value storage
US4862096A (en) * 1987-05-13 1989-08-29 Tektronix, Inc. Programmable multiphase sequence controller
US5657069A (en) * 1991-12-13 1997-08-12 Eastman Kodak Company Method and apparatus for grey level printing
US5493322A (en) * 1993-04-01 1996-02-20 Eastman Kodak Company Electrophotographic image forming apparatus with non-uniformity correction of recording elements
US6587528B1 (en) * 1998-10-12 2003-07-01 Ericsson Inc. Systems and methods for extracting and digitizing phase and frequency information from an analog signal
US8154321B2 (en) 2007-12-21 2012-04-10 Power Integrations, Inc. Method and apparatus for time-differential comparison of an analog signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044065A (en) * 1957-08-05 1962-07-10 Sperry Rand Corp Electronic programming means for synchronizing a plurality of remotely located similar means
US2998190A (en) * 1958-05-09 1961-08-29 Gen Dynamics Corp Accumulator
US3096483A (en) * 1961-04-06 1963-07-02 Bendix Corp Frequency divider system with preset means to select countdown cycle
US3378776A (en) * 1964-10-09 1968-04-16 Stanford Research Inst Data shifting logic system with data and control signals advancing through the system in opposite directions

Also Published As

Publication number Publication date
US3651414A (en) 1972-03-21

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