FR2344033A1 - Ensemble de traitement de donnees sismiques - Google Patents

Ensemble de traitement de donnees sismiques

Info

Publication number
FR2344033A1
FR2344033A1 FR7711091A FR7711091A FR2344033A1 FR 2344033 A1 FR2344033 A1 FR 2344033A1 FR 7711091 A FR7711091 A FR 7711091A FR 7711091 A FR7711091 A FR 7711091A FR 2344033 A1 FR2344033 A1 FR 2344033A1
Authority
FR
France
Prior art keywords
detectors
seismic waves
cables
sequentially transmitted
reflected seismic
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.)
Granted
Application number
FR7711091A
Other languages
English (en)
French (fr)
Other versions
FR2344033B1 (enExample
Inventor
Lee E Siems
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.)
Western Geophysical Company of America
Original Assignee
Western Geophysical Company of America
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
Priority claimed from US05/664,614 external-priority patent/US4031506A/en
Priority claimed from US05/664,615 external-priority patent/US4005273A/en
Application filed by Western Geophysical Company of America filed Critical Western Geophysical Company of America
Publication of FR2344033A1 publication Critical patent/FR2344033A1/fr
Application granted granted Critical
Publication of FR2344033B1 publication Critical patent/FR2344033B1/fr
Granted 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
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/22—Transmitting seismic signals to recording or processing apparatus
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/002—N-path filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/008—Networks using time-varying elements, e.g. N-path filters with variable switch closing time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/10—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Oceanography (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Geophysics And Detection Of Objects (AREA)
FR7711091A 1976-03-08 1977-04-13 Ensemble de traitement de donnees sismiques Granted FR2344033A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/664,614 US4031506A (en) 1976-03-08 1976-03-08 Multiplexer commutated high pass filter
US05/664,615 US4005273A (en) 1976-03-08 1976-03-08 Multiplexer offset removal circuit

Publications (2)

Publication Number Publication Date
FR2344033A1 true FR2344033A1 (fr) 1977-10-07
FR2344033B1 FR2344033B1 (enExample) 1982-12-17

Family

ID=27099015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7711091A Granted FR2344033A1 (fr) 1976-03-08 1977-04-13 Ensemble de traitement de donnees sismiques

Country Status (1)

Country Link
FR (1) FR2344033A1 (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773982A (en) * 1952-06-10 1956-12-11 Gen Dynamics Corp Quasi-regenerative pulse gating circuit
US3604950A (en) * 1969-05-07 1971-09-14 Gen Electric Switching circuit
US3659054A (en) * 1965-04-22 1972-04-25 Theodor Koch Switching arrangement for time multiplex systems having means for eliminating scanning errors due to carrier residual voltages at the scanning switches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773982A (en) * 1952-06-10 1956-12-11 Gen Dynamics Corp Quasi-regenerative pulse gating circuit
US3659054A (en) * 1965-04-22 1972-04-25 Theodor Koch Switching arrangement for time multiplex systems having means for eliminating scanning errors due to carrier residual voltages at the scanning switches
US3604950A (en) * 1969-05-07 1971-09-14 Gen Electric Switching circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *

Also Published As

Publication number Publication date
FR2344033B1 (enExample) 1982-12-17

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse