GB8418210D0 - Seismometers analog-to-digital converters - Google Patents

Seismometers analog-to-digital converters

Info

Publication number
GB8418210D0
GB8418210D0 GB848418210A GB8418210A GB8418210D0 GB 8418210 D0 GB8418210 D0 GB 8418210D0 GB 848418210 A GB848418210 A GB 848418210A GB 8418210 A GB8418210 A GB 8418210A GB 8418210 D0 GB8418210 D0 GB 8418210D0
Authority
GB
United Kingdom
Prior art keywords
seismometers
analog
digital converters
converters
digital
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
GB848418210A
Other versions
GB2144287B (en
GB2144287A (en
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.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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 GB838319811A external-priority patent/GB8319811D0/en
Application filed by National Research Development Corp UK, National Research Development Corp of India filed Critical National Research Development Corp UK
Priority to GB08418210A priority Critical patent/GB2144287B/en
Publication of GB8418210D0 publication Critical patent/GB8418210D0/en
Publication of GB2144287A publication Critical patent/GB2144287A/en
Application granted granted Critical
Publication of GB2144287B publication Critical patent/GB2144287B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01V1/247—Digital recording of seismic data, e.g. in acquisition units or nodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/56—Input signal compared with linear ramp
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/32—Analogue/digital converters pattern-reading type using cathode-ray tubes or analoguous two-dimensional deflection systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Theoretical Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB08418210A 1983-07-22 1984-07-17 Analog-to-digital converters for seismometers Expired GB2144287B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08418210A GB2144287B (en) 1983-07-22 1984-07-17 Analog-to-digital converters for seismometers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838319811A GB8319811D0 (en) 1983-07-22 1983-07-22 Seismometer
GB08418210A GB2144287B (en) 1983-07-22 1984-07-17 Analog-to-digital converters for seismometers

Publications (3)

Publication Number Publication Date
GB8418210D0 true GB8418210D0 (en) 1984-08-22
GB2144287A GB2144287A (en) 1985-02-27
GB2144287B GB2144287B (en) 1986-10-15

Family

ID=26286672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08418210A Expired GB2144287B (en) 1983-07-22 1984-07-17 Analog-to-digital converters for seismometers

Country Status (1)

Country Link
GB (1) GB2144287B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616711A1 (en) * 1986-05-20 1987-11-26 Siemens Ag SIGNALER
GB2221990B (en) * 1988-08-17 1992-04-08 Shorrock Ltd Intrusion detection system
US8525709B2 (en) * 2011-09-21 2013-09-03 Qualcomm Incorporated Systems and methods for designing ADC based on probabilistic switching of memories

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436756A (en) * 1965-12-30 1969-04-01 Monsanto Co Voltage to time-interval converter
FR1507195A (en) * 1966-08-30 1967-12-29 Labo Cent Telecommunicat Coding device for wideband signals
US3665305A (en) * 1970-02-24 1972-05-23 United Systems Corp Analog to digital converter with automatic calibration
GB1301251A (en) * 1971-01-15 1972-12-29
GB1397288A (en) * 1972-12-05 1975-06-11 Comark Data Group Analogue to digital converters
US4077030A (en) * 1976-02-19 1978-02-28 The Bendix Corporation Sensor data input by means of analog to pulse width-to digital converter

Also Published As

Publication number Publication date
GB2144287B (en) 1986-10-15
GB2144287A (en) 1985-02-27

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000717