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GB2279192B - Muting circuit - Google Patents

Muting circuit

Info

Publication number
GB2279192B
GB2279192B GB9416014A GB9416014A GB2279192B GB 2279192 B GB2279192 B GB 2279192B GB 9416014 A GB9416014 A GB 9416014A GB 9416014 A GB9416014 A GB 9416014A GB 2279192 B GB2279192 B GB 2279192B
Authority
GB
United Kingdom
Prior art keywords
muting circuit
muting
circuit
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 - Fee Related
Application number
GB9416014A
Other versions
GB2279192A (en
GB9416014D0 (en
Inventor
Lui Tze Yong
Goh Seok Tiam
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.)
Vantiva SA
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics SA
Thomson Consumer Electronics 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
Priority claimed from US07/594,777 external-priority patent/US5255094A/en
Application filed by Thomson Consumer Electronics SA, Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics SA
Publication of GB9416014D0 publication Critical patent/GB9416014D0/en
Publication of GB2279192A publication Critical patent/GB2279192A/en
Application granted granted Critical
Publication of GB2279192B publication Critical patent/GB2279192B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply
    • 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
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB9416014A 1990-10-10 1991-10-09 Muting circuit Expired - Fee Related GB2279192B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/594,777 US5255094A (en) 1990-10-10 1990-10-10 Muting circuit for eliminating transient signals generated due to power supply turn-on and turn-off
GB9121414A GB2251350B (en) 1990-10-10 1991-10-09 Muting circuit

Publications (3)

Publication Number Publication Date
GB9416014D0 GB9416014D0 (en) 1994-09-28
GB2279192A GB2279192A (en) 1994-12-21
GB2279192B true GB2279192B (en) 1995-05-03

Family

ID=26299660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9416014A Expired - Fee Related GB2279192B (en) 1990-10-10 1991-10-09 Muting circuit

Country Status (1)

Country Link
GB (1) GB2279192B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69917767T2 (en) 1999-07-20 2005-06-02 Stmicroelectronics S.R.L., Agrate Brianza Receiver part of a telephone

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409983A (en) * 1972-11-20 1975-10-15 Sony Corp Muting circuits
GB1435323A (en) * 1972-05-10 1976-05-12 Hitachi Ltd Audio amplifiers
GB2084825A (en) * 1980-09-17 1982-04-15 Hitachi Ltd A muting circuit and an fm radio receiver incorporating the muting circuit
EP0106953A1 (en) * 1982-09-24 1984-05-02 Hitachi, Ltd. Amplifier
GB2172458A (en) * 1985-03-13 1986-09-17 Sgs Microelettronica Spa Apparatus and method for muting an output signal in a switching amplifier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435323A (en) * 1972-05-10 1976-05-12 Hitachi Ltd Audio amplifiers
GB1409983A (en) * 1972-11-20 1975-10-15 Sony Corp Muting circuits
GB2084825A (en) * 1980-09-17 1982-04-15 Hitachi Ltd A muting circuit and an fm radio receiver incorporating the muting circuit
EP0106953A1 (en) * 1982-09-24 1984-05-02 Hitachi, Ltd. Amplifier
GB2172458A (en) * 1985-03-13 1986-09-17 Sgs Microelettronica Spa Apparatus and method for muting an output signal in a switching amplifier

Also Published As

Publication number Publication date
GB2279192A (en) 1994-12-21
GB9416014D0 (en) 1994-09-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20101009