GB201815351D0 - Dynamic gain controller - Google Patents

Dynamic gain controller

Info

Publication number
GB201815351D0
GB201815351D0 GBGB1815351.0A GB201815351A GB201815351D0 GB 201815351 D0 GB201815351 D0 GB 201815351D0 GB 201815351 A GB201815351 A GB 201815351A GB 201815351 D0 GB201815351 D0 GB 201815351D0
Authority
GB
United Kingdom
Prior art keywords
gain controller
dynamic gain
dynamic
controller
gain
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.)
Granted
Application number
GBGB1815351.0A
Other versions
GB2566164B (en
GB2566164A (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.)
Imagination Technologies Ltd
Original Assignee
Imagination Technologies Ltd
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 Imagination Technologies Ltd filed Critical Imagination Technologies Ltd
Priority to GB2000016.2A priority Critical patent/GB2577839B/en
Priority to GB1815351.0A priority patent/GB2566164B/en
Priority claimed from GB1602915.9A external-priority patent/GB2547459B/en
Publication of GB201815351D0 publication Critical patent/GB201815351D0/en
Publication of GB2566164A publication Critical patent/GB2566164A/en
Application granted granted Critical
Publication of GB2566164B publication Critical patent/GB2566164B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • 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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • 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
    • H03G3/3089—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB1815351.0A 2016-02-19 2016-02-19 Dynamic gain controller Active GB2566164B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2000016.2A GB2577839B (en) 2016-02-19 2016-02-19 Dynamic gain controller
GB1815351.0A GB2566164B (en) 2016-02-19 2016-02-19 Dynamic gain controller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1815351.0A GB2566164B (en) 2016-02-19 2016-02-19 Dynamic gain controller
GB1602915.9A GB2547459B (en) 2016-02-19 2016-02-19 Dynamic gain controller

Publications (3)

Publication Number Publication Date
GB201815351D0 true GB201815351D0 (en) 2018-11-07
GB2566164A GB2566164A (en) 2019-03-06
GB2566164B GB2566164B (en) 2020-02-19

Family

ID=64024168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1815351.0A Active GB2566164B (en) 2016-02-19 2016-02-19 Dynamic gain controller

Country Status (1)

Country Link
GB (1) GB2566164B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114582365B (en) * 2022-05-05 2022-09-06 阿里巴巴（中国）有限公司 Audio processing method and device, storage medium and electronic equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233554B1 (en) * 1997-12-12 2001-05-15 Qualcomm Incorporated Audio CODEC with AGC controlled by a VOCODER
WO2011141772A1 (en) * 2010-05-12 2011-11-17 Nokia Corporation Method and apparatus for processing an audio signal based on an estimated loudness
KR101726738B1 (en) * 2010-12-01 2017-04-13 삼성전자주식회사 Sound processing apparatus and sound processing method

Also Published As

Publication number Publication date
GB2566164B (en) 2020-02-19
GB2566164A (en) 2019-03-06

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