GB2078035B - Muting circuits - Google Patents

Muting circuits

Info

Publication number
GB2078035B
GB2078035B GB8117682A GB8117682A GB2078035B GB 2078035 B GB2078035 B GB 2078035B GB 8117682 A GB8117682 A GB 8117682A GB 8117682 A GB8117682 A GB 8117682A GB 2078035 B GB2078035 B GB 2078035B
Authority
GB
United Kingdom
Prior art keywords
muting circuits
muting
circuits
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
GB8117682A
Other languages
English (en)
Other versions
GB2078035A (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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of GB2078035A publication Critical patent/GB2078035A/en
Application granted granted Critical
Publication of GB2078035B publication Critical patent/GB2078035B/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
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H04N5/505—Invisible or silent tuning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
GB8117682A 1980-06-13 1981-06-09 Muting circuits Expired GB2078035B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8013176A FR2484752A1 (fr) 1980-06-13 1980-06-13 Dispositif d'arret du son pour televiseur, et televiseur comprenant un tel dispositif

Publications (2)

Publication Number Publication Date
GB2078035A GB2078035A (en) 1981-12-23
GB2078035B true GB2078035B (en) 1984-03-28

Family

ID=9243070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8117682A Expired GB2078035B (en) 1980-06-13 1981-06-09 Muting circuits

Country Status (4)

Country Link
DE (1) DE3123426A1 (enrdf_load_stackoverflow)
FR (1) FR2484752A1 (enrdf_load_stackoverflow)
GB (1) GB2078035B (enrdf_load_stackoverflow)
HK (1) HK61489A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144972U (ja) * 1983-03-18 1984-09-27 ソニー株式会社 テレビジヨン受像機
DE3508528C2 (de) * 1985-03-09 1993-10-07 Thomson Brandt Gmbh Empfangsgerät zum Empfang von mittels Kabel übertragenen Fernsehsendungen mit einer Torschaltung
DE3508527A1 (de) * 1985-03-09 1986-09-11 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Empfangsgeraet zum empfang von mittels kabel uebertragenen fernsehsendungen mit einer torschaltung
KR930005185B1 (ko) * 1986-07-18 1993-06-16 상요덴기 가부시기가이샤 동기 주파수 자동 조절장치
DE3718017A1 (de) * 1987-05-27 1988-12-15 Grundig Emv Einrichtung zur abstimmung eines videorecorders
US4903334A (en) * 1988-05-05 1990-02-20 Thomson Consumer Electronics, Inc. System for preventing crosstalk in a multi-input electronic device
DE4110293A1 (de) * 1991-03-28 1992-10-01 Loewe Opta Gmbh Fernsehempfangsgeraet
GB2307606A (en) * 1995-11-23 1997-05-28 Thomson Multimedia Sa Muting in a microprocessor-controlled audio apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632800A (en) * 1949-03-26 1953-03-24 Motorola Inc Noise squelch system for television receivers
US2850564A (en) * 1953-01-29 1958-09-02 Itt Television receiver
DE1220179B (de) * 1963-10-17 1966-06-30 Bosch Gmbh Robert Anordnung zur Grenzdrehzahlmessung einer Welle

Also Published As

Publication number Publication date
GB2078035A (en) 1981-12-23
DE3123426A1 (de) 1982-03-11
FR2484752A1 (fr) 1981-12-18
DE3123426C2 (enrdf_load_stackoverflow) 1991-10-24
HK61489A (en) 1989-08-11
FR2484752B1 (enrdf_load_stackoverflow) 1985-02-08

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19971104

PE20 Patent expired after termination of 20 years

Effective date: 20010608