GB2189953B - Agc circuit - Google Patents

Agc circuit

Info

Publication number
GB2189953B
GB2189953B GB8709626A GB8709626A GB2189953B GB 2189953 B GB2189953 B GB 2189953B GB 8709626 A GB8709626 A GB 8709626A GB 8709626 A GB8709626 A GB 8709626A GB 2189953 B GB2189953 B GB 2189953B
Authority
GB
United Kingdom
Prior art keywords
agc circuit
agc
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
GB8709626A
Other versions
GB2189953A (en
GB8709626D0 (en
Inventor
Gary Paul Hague
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.)
GEC TELECOMMUNICATIONS Ltd
General Electric Co PLC
Original Assignee
GEC TELECOMMUNICATIONS Ltd
General Electric Co PLC
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 GEC TELECOMMUNICATIONS Ltd, General Electric Co PLC filed Critical GEC TELECOMMUNICATIONS Ltd
Publication of GB8709626D0 publication Critical patent/GB8709626D0/en
Publication of GB2189953A publication Critical patent/GB2189953A/en
Application granted granted Critical
Publication of GB2189953B publication Critical patent/GB2189953B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
GB8709626A 1986-04-28 1987-04-23 Agc circuit Expired - Fee Related GB2189953B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868610347A GB8610347D0 (en) 1986-04-28 1986-04-28 Agc circuit

Publications (3)

Publication Number Publication Date
GB8709626D0 GB8709626D0 (en) 1987-05-28
GB2189953A GB2189953A (en) 1987-11-04
GB2189953B true GB2189953B (en) 1990-01-04

Family

ID=10596973

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868610347A Pending GB8610347D0 (en) 1986-04-28 1986-04-28 Agc circuit
GB8709626A Expired - Fee Related GB2189953B (en) 1986-04-28 1987-04-23 Agc circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868610347A Pending GB8610347D0 (en) 1986-04-28 1986-04-28 Agc circuit

Country Status (1)

Country Link
GB (2) GB8610347D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8701365D0 (en) * 1987-01-22 1987-02-25 Thomas L D Signal level control
US5371803A (en) * 1990-08-31 1994-12-06 Bellsouth Corporation Tone reduction circuit for headsets
US5369711A (en) * 1990-08-31 1994-11-29 Bellsouth Corporation Automatic gain control for a headset
FI97001C (en) * 1993-05-05 1996-09-25 Nokia Mobile Phones Ltd Switching to process a speech signal
US5701352A (en) * 1994-07-14 1997-12-23 Bellsouth Corporation Tone suppression automatic gain control for a headset
GB9811382D0 (en) * 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd A transmitter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578645A (en) * 1976-12-10 1980-11-05 Geosource Inc Instantaneous floating point amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578645A (en) * 1976-12-10 1980-11-05 Geosource Inc Instantaneous floating point amplifier

Also Published As

Publication number Publication date
GB2189953A (en) 1987-11-04
GB8610347D0 (en) 1986-06-04
GB8709626D0 (en) 1987-05-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee