GB693761A - Improvements in or relating to clamping circuits for electrical signal transmission systems - Google Patents

Improvements in or relating to clamping circuits for electrical signal transmission systems

Info

Publication number
GB693761A
GB693761A GB13841/50A GB1384150A GB693761A GB 693761 A GB693761 A GB 693761A GB 13841/50 A GB13841/50 A GB 13841/50A GB 1384150 A GB1384150 A GB 1384150A GB 693761 A GB693761 A GB 693761A
Authority
GB
United Kingdom
Prior art keywords
clamping
amplifier
clamp
signals
input
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
GB13841/50A
Other languages
English (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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB693761A publication Critical patent/GB693761A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Amplifiers (AREA)
GB13841/50A 1949-06-04 1950-06-02 Improvements in or relating to clamping circuits for electrical signal transmission systems Expired GB693761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US97170A US2564017A (en) 1949-06-04 1949-06-04 Clamp circuit

Publications (1)

Publication Number Publication Date
GB693761A true GB693761A (en) 1953-07-08

Family

ID=22261722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13841/50A Expired GB693761A (en) 1949-06-04 1950-06-02 Improvements in or relating to clamping circuits for electrical signal transmission systems

Country Status (4)

Country Link
US (1) US2564017A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1017876A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB693761A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL82308C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB697966A (en) * 1950-07-11 1953-10-07 Pye Ltd Improvements in and relating to television apparatus
US2717931A (en) * 1950-07-29 1955-09-13 Rca Corp Circuit for varying amplifier gain and frequency response with signal amplitude
NL174245B (nl) * 1951-12-05 Saint Gobain Inrichting voor het harden van vooraf gebogen glasplaten.
NL182800A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1952-11-14
US2868969A (en) * 1953-04-22 1959-01-13 Clarence F Inniss Diode shunt gating circuit
US2896078A (en) * 1953-04-29 1959-07-21 Philco Corp Amplitude measuring circuit
US2817015A (en) * 1953-05-18 1957-12-17 Hughes Aircraft Co Shunt gating circuit
US2863943A (en) * 1954-11-30 1958-12-09 Rca Corp Feedback clamping circuit arrangements
US2965891A (en) * 1955-06-21 1960-12-20 Schlumberger Well Surv Corp Signal converting systems
US2929928A (en) * 1955-07-01 1960-03-22 Hughes Aircraft Co Signal conversion system
NL212905A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1956-01-11
US3008007A (en) * 1956-09-27 1961-11-07 Philips Corp Receiver for use in frequency shift telegraphy
NL223074A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1956-12-15
US3819859A (en) * 1972-12-26 1974-06-25 Bell Telephone Labor Inc Horizontal sync detector and video clamp circuit
US3832486A (en) * 1973-03-16 1974-08-27 Warwick Electronics Inc Modulator clamp circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB521744A (en) * 1938-10-19 1940-05-30 John Collard Improvements in or relating to electric signal transmission systems
BE475115A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1940-11-27
US2445040A (en) * 1943-05-13 1948-07-13 Rca Corp Dark spot corrector
US2462294A (en) * 1946-05-22 1949-02-22 Rca Corp Automatic frequency control
US2474580A (en) * 1946-05-23 1949-06-28 Gen Electric Voltage regulating system

Also Published As

Publication number Publication date
NL82308C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2564017A (en) 1951-08-14
FR1017876A (fr) 1952-12-19

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