GB662594A - Improvements in automatic-gain-control circuits for television receivers - Google Patents

Improvements in automatic-gain-control circuits for television receivers

Info

Publication number
GB662594A
GB662594A GB21729/49A GB2172949A GB662594A GB 662594 A GB662594 A GB 662594A GB 21729/49 A GB21729/49 A GB 21729/49A GB 2172949 A GB2172949 A GB 2172949A GB 662594 A GB662594 A GB 662594A
Authority
GB
United Kingdom
Prior art keywords
grid
signals
signal
gain
amplifier
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
GB21729/49A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB662594A publication Critical patent/GB662594A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/18—Preparation by oxidation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Details Of Television Scanning (AREA)
GB21729/49A 1948-08-25 1949-08-22 Improvements in automatic-gain-control circuits for television receivers Expired GB662594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL276000X 1948-08-25

Publications (1)

Publication Number Publication Date
GB662594A true GB662594A (en) 1951-12-05

Family

ID=19782124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21729/49A Expired GB662594A (en) 1948-08-25 1949-08-22 Improvements in automatic-gain-control circuits for television receivers

Country Status (6)

Country Link
BE (1) BE490791A (enrdf_load_stackoverflow)
CH (1) CH276000A (enrdf_load_stackoverflow)
DE (1) DE814460C (enrdf_load_stackoverflow)
FR (1) FR993703A (enrdf_load_stackoverflow)
GB (1) GB662594A (enrdf_load_stackoverflow)
NL (1) NL76307C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR993703A (fr) 1951-11-06
NL76307C (enrdf_load_stackoverflow)
BE490791A (enrdf_load_stackoverflow)
CH276000A (de) 1951-06-15
DE814460C (de) 1951-09-24

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