FR2312886B3 - - Google Patents

Info

Publication number
FR2312886B3
FR2312886B3 FR7615914A FR7615914A FR2312886B3 FR 2312886 B3 FR2312886 B3 FR 2312886B3 FR 7615914 A FR7615914 A FR 7615914A FR 7615914 A FR7615914 A FR 7615914A FR 2312886 B3 FR2312886 B3 FR 2312886B3
Authority
FR
France
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
FR7615914A
Other languages
French (fr)
Other versions
FR2312886A1 (fr
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2312886A1 publication Critical patent/FR2312886A1/fr
Application granted granted Critical
Publication of FR2312886B3 publication Critical patent/FR2312886B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/664—Non-linear conversion not otherwise provided for in subgroups of H03M1/66
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/86—Digital/analogue converters with intermediate conversion to frequency of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Software Systems (AREA)
  • Nonlinear Science (AREA)
  • Analogue/Digital Conversion (AREA)
FR7615914A 1975-05-29 1976-05-26 Convertisseur frequence-tension logarithmique Granted FR2312886A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/582,016 US3991301A (en) 1975-05-29 1975-05-29 Logarithmic frequency to voltage converter

Publications (2)

Publication Number Publication Date
FR2312886A1 FR2312886A1 (fr) 1976-12-24
FR2312886B3 true FR2312886B3 (Direct) 1979-02-16

Family

ID=24327500

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7615914A Granted FR2312886A1 (fr) 1975-05-29 1976-05-26 Convertisseur frequence-tension logarithmique

Country Status (3)

Country Link
US (1) US3991301A (Direct)
CA (1) CA1060109A (Direct)
FR (1) FR2312886A1 (Direct)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101903A (en) * 1976-08-02 1978-07-18 Rockwell International Corporation Method and apparatus for monitoring bcd continuously varying data
US4089060A (en) * 1976-10-15 1978-05-09 Mitchell Donald K Digital logarithmic apparatus
GB2005500B (en) * 1977-09-26 1982-07-14 Burroughs Corp Video synthesizer for digital video display system employiing a plurality of gray-scale levels
DE2900192A1 (de) * 1979-01-04 1980-07-24 Bosch Gmbh Robert Frequenz-spannungs-wandler und spannungs-frequenz-wandler sowie ihre verwendung
DE3115497C2 (de) * 1981-04-16 1985-01-10 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Frequenz-Spannungswandler für ein Digital-Tachometer
US4484295A (en) * 1981-05-26 1984-11-20 General Electric Company Control circuit and method for varying the output of a waveform generator to gradually or rapidly vary a control signal from an initial value to a desired value
DE68912363T2 (de) * 1988-02-29 1994-07-28 Philips Nv Logarithmischer Verstärker.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426184A (en) * 1966-04-04 1969-02-04 Orion Research Logarithmic circuit
US3579127A (en) * 1967-05-31 1971-05-18 Gulf Energy & Environ Systems Apparatus for monitoring pulses
US3698631A (en) * 1970-11-19 1972-10-17 Bell Telephone Labor Inc Apparatus for generating a logarithmically related series of digitally coded signal quantities
JPS526586B2 (Direct) * 1972-02-02 1977-02-23
US3866024A (en) * 1973-10-23 1975-02-11 Scope Inc Digital log-time generator

Also Published As

Publication number Publication date
US3991301A (en) 1976-11-09
CA1060109A (en) 1979-08-07
FR2312886A1 (fr) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse