FR2521758A1 - Dispositif de commande de gain - Google Patents

Dispositif de commande de gain Download PDF

Info

Publication number
FR2521758A1
FR2521758A1 FR8302668A FR8302668A FR2521758A1 FR 2521758 A1 FR2521758 A1 FR 2521758A1 FR 8302668 A FR8302668 A FR 8302668A FR 8302668 A FR8302668 A FR 8302668A FR 2521758 A1 FR2521758 A1 FR 2521758A1
Authority
FR
France
Prior art keywords
signal
digital
digital signal
gain control
control device
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
FR8302668A
Other languages
English (en)
French (fr)
Other versions
FR2521758B1 (OSRAM
Inventor
Tsuneo Furuya
Katsuaki Tsurushima
Hirohito Kawada
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2521758A1 publication Critical patent/FR2521758A1/fr
Application granted granted Critical
Publication of FR2521758B1 publication Critical patent/FR2521758B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • 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
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
FR8302668A 1982-02-18 1983-02-18 Dispositif de commande de gain Granted FR2521758A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57024830A JPS58142614A (ja) 1982-02-18 1982-02-18 利得制御装置

Publications (2)

Publication Number Publication Date
FR2521758A1 true FR2521758A1 (fr) 1983-08-19
FR2521758B1 FR2521758B1 (OSRAM) 1985-02-08

Family

ID=12149105

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8302668A Granted FR2521758A1 (fr) 1982-02-18 1983-02-18 Dispositif de commande de gain

Country Status (7)

Country Link
JP (1) JPS58142614A (OSRAM)
KR (1) KR910002980B1 (OSRAM)
CA (1) CA1214998A (OSRAM)
DE (1) DE3305662C2 (OSRAM)
FR (1) FR2521758A1 (OSRAM)
GB (1) GB2119189B (OSRAM)
NL (1) NL8300618A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366291A3 (en) * 1988-10-05 1992-05-06 Pioneer Electronic Corporation Disc player with manual search function

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
EP0911713B1 (en) * 1997-10-21 2004-09-22 Deutsche Thomson-Brandt Gmbh Corrected servo control signal in a servo control loop
EP0911712A1 (en) * 1997-10-21 1999-04-28 Deutsche Thomson-Brandt Gmbh Corrected servo control signal in a servo control loop
GB2378064A (en) * 2001-03-12 2003-01-29 Simoco Int Ltd A feed-forward signal level control arrangement with a delay in the signal path
EP2569771A1 (en) 2010-05-10 2013-03-20 Marvell World Trade Ltd. Method and apparatus for offset and gain correction
US8687471B2 (en) 2010-05-10 2014-04-01 Marvell World Trade Ltd. Method and apparatus for offset and gain correction
US9831843B1 (en) 2013-09-05 2017-11-28 Cirrus Logic, Inc. Opportunistic playback state changes for audio devices
US9774342B1 (en) 2014-03-05 2017-09-26 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9525940B1 (en) 2014-03-05 2016-12-20 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9306588B2 (en) 2014-04-14 2016-04-05 Cirrus Logic, Inc. Switchable secondary playback path
US10785568B2 (en) 2014-06-26 2020-09-22 Cirrus Logic, Inc. Reducing audio artifacts in a system for enhancing dynamic range of audio signal path
US9596537B2 (en) 2014-09-11 2017-03-14 Cirrus Logic, Inc. Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement
US9503027B2 (en) 2014-10-27 2016-11-22 Cirrus Logic, Inc. Systems and methods for dynamic range enhancement using an open-loop modulator in parallel with a closed-loop modulator
US9584911B2 (en) 2015-03-27 2017-02-28 Cirrus Logic, Inc. Multichip dynamic range enhancement (DRE) audio processing methods and apparatuses
US9959856B2 (en) 2015-06-15 2018-05-01 Cirrus Logic, Inc. Systems and methods for reducing artifacts and improving performance of a multi-path analog-to-digital converter
US9955254B2 (en) 2015-11-25 2018-04-24 Cirrus Logic, Inc. Systems and methods for preventing distortion due to supply-based modulation index changes in an audio playback system
US9543975B1 (en) 2015-12-29 2017-01-10 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system with low-pass filter between paths
US9880802B2 (en) 2016-01-21 2018-01-30 Cirrus Logic, Inc. Systems and methods for reducing audio artifacts from switching between paths of a multi-path signal processing system
US9998826B2 (en) 2016-06-28 2018-06-12 Cirrus Logic, Inc. Optimization of performance and power in audio system
US9813814B1 (en) 2016-08-23 2017-11-07 Cirrus Logic, Inc. Enhancing dynamic range based on spectral content of signal
US9762255B1 (en) 2016-09-19 2017-09-12 Cirrus Logic, Inc. Reconfiguring paths in a multiple path analog-to-digital converter
US9780800B1 (en) 2016-09-19 2017-10-03 Cirrus Logic, Inc. Matching paths in a multiple path analog-to-digital converter
US9929703B1 (en) 2016-09-27 2018-03-27 Cirrus Logic, Inc. Amplifier with configurable final output stage
US9967665B2 (en) 2016-10-05 2018-05-08 Cirrus Logic, Inc. Adaptation of dynamic range enhancement based on noise floor of signal
US10321230B2 (en) 2017-04-07 2019-06-11 Cirrus Logic, Inc. Switching in an audio system with multiple playback paths
US10008992B1 (en) 2017-04-14 2018-06-26 Cirrus Logic, Inc. Switching in amplifier with configurable final output stage
US9917557B1 (en) 2017-04-17 2018-03-13 Cirrus Logic, Inc. Calibration for amplifier with configurable final output stage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165495A (en) * 1977-07-20 1979-08-21 Sony Corporation Circuit system for reproducing a signal from a moving record carrier
US4233566A (en) * 1978-10-23 1980-11-11 Technical Audio Products Corporation Distortion free power limiting and clipping prevention circuit
JPS56111311A (en) * 1980-02-07 1981-09-03 Nec Corp Intermediate-frequency amplifying device with function of limiting input amplitude
GB1599401A (en) * 1978-04-18 1981-09-30 Nat Res Dev Input signal level control for communications channels

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887875A (en) * 1973-09-07 1975-06-03 Ncr Co Digital signal leveling device
AT347504B (de) * 1975-04-18 1978-12-27 Siemens Ag Oesterreich Einrichtung zur automatischen lautstaerke- regelung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165495A (en) * 1977-07-20 1979-08-21 Sony Corporation Circuit system for reproducing a signal from a moving record carrier
GB1599401A (en) * 1978-04-18 1981-09-30 Nat Res Dev Input signal level control for communications channels
US4233566A (en) * 1978-10-23 1980-11-11 Technical Audio Products Corporation Distortion free power limiting and clipping prevention circuit
JPS56111311A (en) * 1980-02-07 1981-09-03 Nec Corp Intermediate-frequency amplifying device with function of limiting input amplitude

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan vol. 5, no. 186, 25 November 1981 & JP-A-56-111311 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366291A3 (en) * 1988-10-05 1992-05-06 Pioneer Electronic Corporation Disc player with manual search function

Also Published As

Publication number Publication date
NL8300618A (nl) 1983-09-16
JPS58142614A (ja) 1983-08-24
GB2119189B (en) 1985-08-14
KR840003937A (ko) 1984-10-04
KR910002980B1 (ko) 1991-05-11
GB2119189A (en) 1983-11-09
GB8304397D0 (en) 1983-03-23
DE3305662C2 (de) 1995-05-24
DE3305662A1 (de) 1983-09-08
FR2521758B1 (OSRAM) 1985-02-08
CA1214998A (en) 1986-12-09

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