GB1266709A - - Google Patents

Info

Publication number
GB1266709A
GB1266709A GB1266709DA GB1266709A GB 1266709 A GB1266709 A GB 1266709A GB 1266709D A GB1266709D A GB 1266709DA GB 1266709 A GB1266709 A GB 1266709A
Authority
GB
United Kingdom
Prior art keywords
signal
gain
amplifiers
amplifier
output
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
Other languages
English (en)
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 filed Critical
Publication of GB1266709A publication Critical patent/GB1266709A/en
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)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Amplifiers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Control Of Amplification And Gain Control (AREA)
GB1266709D 1968-12-24 1969-12-11 Expired GB1266709A (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78656968A 1968-12-24 1968-12-24

Publications (1)

Publication Number Publication Date
GB1266709A true GB1266709A (https=) 1972-03-15

Family

ID=25138960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266709D Expired GB1266709A (https=) 1968-12-24 1969-12-11

Country Status (7)

Country Link
US (1) US3562744A (https=)
JP (1) JPS49374B1 (https=)
BR (1) BR6915409D0 (https=)
CH (1) CH512159A (https=)
FR (1) FR2027062B1 (https=)
GB (1) GB1266709A (https=)
NL (1) NL163077C (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110758A5 (https=) * 1970-10-29 1972-06-02 Sercel Rech Const Elect
US3919657A (en) * 1973-11-12 1975-11-11 Texaco Inc Wide dynamic range amplifier system with slew rate control
CA1042097A (en) * 1974-10-21 1978-11-07 Nippon Telegraph And Telephone Public Corporation Interframe coding system with automatic control of magnitude of interframe difference signal
US4064480A (en) * 1975-11-10 1977-12-20 Texaco Inc. Means and method for recording seismic signals
US4158819A (en) * 1976-12-10 1979-06-19 Geosource Inc. Instantaneous floating point amplifier
US4357577A (en) * 1976-12-10 1982-11-02 Geosource Inc. Instantaneous floating point amplifier
JPS6256811U (https=) * 1985-09-30 1987-04-08
DE102010040723B4 (de) * 2010-09-14 2016-01-21 Siemens Aktiengesellschaft Bereitstellung eines Wechselsignals

Also Published As

Publication number Publication date
JPS49374B1 (https=) 1974-01-07
NL6919344A (https=) 1970-06-26
NL163077C (nl) 1980-07-15
BR6915409D0 (pt) 1973-01-04
FR2027062B1 (https=) 1973-08-10
NL163077B (nl) 1980-02-15
CH512159A (de) 1971-08-31
DE1964138A1 (de) 1970-07-02
FR2027062A1 (https=) 1970-09-25
US3562744A (en) 1971-02-09
DE1964138B2 (de) 1975-08-28

Similar Documents

Publication Publication Date Title
GB1042442A (en) Circuit arrangements for standardising groups of analogue signals
GB1289770A (https=)
GB1266709A (https=)
GB1284160A (en) Amplifier system
GB1534199A (en) Electrical filters
GB1177019A (en) Analogue-Digital Converters
GB1458137A (en) Wide dynamic range amplifier system with slew rate control
US3603972A (en) Amplifier system
US2889409A (en) Volume compression and expansion in pulse code transmission
GB808247A (en) Device for effecting synchronisation of serial pulse groups in plural channel information systems
GB896129A (en) Data storage device
GB867997A (en) Directional data transfer apparatus
JPS5513506A (en) Information signal transmission system
GB1261836A (en) Improvements in and relating to seismic prospecting
GB1036647A (en) Seismic amplifier
GB978171A (https=)
GB913038A (en) Improvements in and relating to telephone systems
GB990303A (en) Counting system
US3022007A (en) Serial binary adder
IT1077815B (it) Amplificatore elettrico
JPS5750047A (en) Analog input device
SU822196A1 (ru) Устройство дл решени дифференциальныхуРАВНЕНий B чАСТНыХ пРОизВОдНыХ
GB1168458A (en) Signal sequence discriminator
GB1075375A (en) Signal source direction detecting system
GB1195237A (en) Improvements in or relating to Binary Adders

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee