FR2027061B1 - - Google Patents

Info

Publication number
FR2027061B1
FR2027061B1 FR696944881A FR6944881A FR2027061B1 FR 2027061 B1 FR2027061 B1 FR 2027061B1 FR 696944881 A FR696944881 A FR 696944881A FR 6944881 A FR6944881 A FR 6944881A FR 2027061 B1 FR2027061 B1 FR 2027061B1
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
FR696944881A
Other versions
FR2027061A1 (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.)
Texaco Development Corp
Original Assignee
Texaco Development 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 Texaco Development Corp filed Critical Texaco Development Corp
Publication of FR2027061A1 publication Critical patent/FR2027061A1/fr
Application granted granted Critical
Publication of FR2027061B1 publication Critical patent/FR2027061B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/24—Recording seismic data
    • G01V1/245—Amplitude control for seismic recording
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Amplifiers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR696944881A 1968-12-24 1969-12-24 Expired FR2027061B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78670668A 1968-12-24 1968-12-24

Publications (2)

Publication Number Publication Date
FR2027061A1 FR2027061A1 (fr) 1970-09-25
FR2027061B1 true FR2027061B1 (fr) 1973-08-10

Family

ID=25139370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR696944881A Expired FR2027061B1 (fr) 1968-12-24 1969-12-24

Country Status (7)

Country Link
US (1) US3603972A (fr)
JP (1) JPS5129391B1 (fr)
BR (1) BR6915408D0 (fr)
CH (1) CH510359A (fr)
FR (1) FR2027061B1 (fr)
GB (1) GB1266710A (fr)
NL (1) NL162265C (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110758A5 (fr) * 1970-10-29 1972-06-02 Sercel Rech Const Elect
US3813609A (en) * 1972-11-27 1974-05-28 Petty Ray Geophysical Inc Multiple stage sample normalizing amplifier with automatic gain prediction
US3852533A (en) * 1973-01-05 1974-12-03 Vidar Corp Sampling and analog-to-digital converter apparatus for use in a telephone message metering system
US3919657A (en) * 1973-11-12 1975-11-11 Texaco Inc Wide dynamic range amplifier system with slew rate control
US3919685A (en) * 1973-11-26 1975-11-11 Geo Space Corp Seismic data acquisition system and method
US4238784A (en) * 1975-01-23 1980-12-09 Colt Industries Operating Corp. Electronic measuring system with pulsed power supply and stability sensing
US4357577A (en) * 1976-12-10 1982-11-02 Geosource Inc. Instantaneous floating point amplifier
US4158819A (en) * 1976-12-10 1979-06-19 Geosource Inc. Instantaneous floating point amplifier
US4725950A (en) * 1985-06-19 1988-02-16 Syntrak, Inc. Marine seismic signal processor with D.C. offset compensation method
JPH0666692B2 (ja) * 1986-02-13 1994-08-24 クラリオン株式会社 アナログ−デイジタル変換装置
US4823129A (en) * 1987-02-24 1989-04-18 Bison Instruments, Inc. Analog-to-digital converter
FR2626423A1 (fr) * 1988-01-21 1989-07-28 Inst Francais Du Petrole Dispositif d'acquisition pour la numerisation de signaux a grande dynamique
US4824707A (en) * 1988-06-27 1989-04-25 Donald Spector Decorative air freshener unit
DE59508874D1 (de) * 1994-07-08 2001-01-04 Infineon Technologies Ag Verstärkeranordnung und Empfängerschaltung, die die Verstärkeranordnung enthält
US7760089B2 (en) 2007-09-26 2010-07-20 Honeywell International Inc. Microwave direction of travel detector by parallel sampling
JP4470995B2 (ja) * 2007-12-19 2010-06-02 セイコーエプソン株式会社 Ａ／ｄ変換回路及び電子機器
GB201915110D0 (en) * 2019-10-18 2019-12-04 Bp Exploration Operating Co Ltd Seismic sensor gain

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425051A (en) * 1965-03-10 1969-01-28 Us Air Force Analog-to-digital converter

Also Published As

Publication number Publication date
CH510359A (de) 1971-07-15
NL162265C (nl) 1980-04-15
US3603972A (en) 1971-09-07
FR2027061A1 (fr) 1970-09-25
NL6919459A (fr) 1970-06-26
DE1964202A1 (de) 1970-07-09
NL162265B (nl) 1979-11-15
GB1266710A (fr) 1972-03-15
BR6915408D0 (pt) 1973-02-22
DE1964202B2 (de) 1975-06-19
JPS5129391B1 (fr) 1976-08-25

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Legal Events

Date Code Title Description
JD Different final judgements