DK200983A - A/d-omsaetningssystem - Google Patents

A/d-omsaetningssystem Download PDF

Info

Publication number
DK200983A
DK200983A DK200983A DK200983A DK200983A DK 200983 A DK200983 A DK 200983A DK 200983 A DK200983 A DK 200983A DK 200983 A DK200983 A DK 200983A DK 200983 A DK200983 A DK 200983A
Authority
DK
Denmark
Prior art keywords
conversion system
conversion
compromise
help
reproduction
Prior art date
Application number
DK200983A
Other languages
English (en)
Other versions
DK200983D0 (da
DK162911B (da
Inventor
Kenneth James Gundry
Original Assignee
Dolby Lab Licensing 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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of DK200983D0 publication Critical patent/DK200983D0/da
Publication of DK200983A publication Critical patent/DK200983A/da
Publication of DK162911B publication Critical patent/DK162911B/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Description

til behandling af et signal, inden det tilføres til omsætterorganet, hvilke variable gengiveorganer har en form svarende til gengivekarakteristikken, der varierer i afhængighed af styresignalet. Derved bliver behovet for et kompromis reduceret, samtidigt med at der tilvejebringes et digitalt ind-kodnings/dekodningssystem med forøget dynamikområde, og som kan realiseres ved hjælp af enkelt og billigt apparatur.
Figure DK200983AD00031
DK200983A 1982-05-05 1983-05-05 Adaptivt stoejreduktionssystem med a/d- og d/a-pulsomsaettere DK162911B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37503782 1982-05-05
US06/375,037 US4493091A (en) 1982-05-05 1982-05-05 Analog and digital signal apparatus

Publications (3)

Publication Number Publication Date
DK200983D0 DK200983D0 (da) 1983-05-05
DK200983A true DK200983A (da) 1983-11-06
DK162911B DK162911B (da) 1991-12-23

Family

ID=23479245

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200983A DK162911B (da) 1982-05-05 1983-05-05 Adaptivt stoejreduktionssystem med a/d- og d/a-pulsomsaettere

Country Status (13)

Country Link
US (1) US4493091A (da)
JP (1) JPS58218245A (da)
KR (1) KR840004991A (da)
BE (1) BE896674A (da)
BR (1) BR8302311A (da)
CA (1) CA1218157A (da)
CH (1) CH666585A5 (da)
DE (1) DE3315519A1 (da)
DK (1) DK162911B (da)
ES (1) ES8500530A1 (da)
FR (1) FR2526608B1 (da)
GB (1) GB2121253B (da)
NL (1) NL8301572A (da)

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US5867537A (en) * 1992-10-27 1999-02-02 Ericsson Inc. Balanced tranversal I,Q filters for quadrature modulators
US5530722A (en) * 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
US5614903A (en) * 1995-08-29 1997-03-25 Trw Inc. Distortion suppressor for digital-to-analog converter
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US7027982B2 (en) * 2001-12-14 2006-04-11 Microsoft Corporation Quality and rate control strategy for digital audio
US6980695B2 (en) * 2002-06-28 2005-12-27 Microsoft Corporation Rate allocation for mixed content video
US7383180B2 (en) * 2003-07-18 2008-06-03 Microsoft Corporation Constant bitrate media encoding techniques
US7343291B2 (en) 2003-07-18 2008-03-11 Microsoft Corporation Multi-pass variable bitrate media encoding
US8254455B2 (en) * 2007-06-30 2012-08-28 Microsoft Corporation Computing collocated macroblock information for direct mode macroblocks
US8325800B2 (en) 2008-05-07 2012-12-04 Microsoft Corporation Encoding streaming media as a high bit rate layer, a low bit rate layer, and one or more intermediate bit rate layers
US8379851B2 (en) 2008-05-12 2013-02-19 Microsoft Corporation Optimized client side rate control and indexed file layout for streaming media
US7860996B2 (en) * 2008-05-30 2010-12-28 Microsoft Corporation Media streaming with seamless ad insertion
US8265140B2 (en) * 2008-09-30 2012-09-11 Microsoft Corporation Fine-grained client-side control of scalable media delivery
US8189666B2 (en) * 2009-02-02 2012-05-29 Microsoft Corporation Local picture identifier and computation of co-located information
US9172960B1 (en) * 2010-09-23 2015-10-27 Qualcomm Technologies, Inc. Quantization based on statistics and threshold of luminanceand chrominance
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
US10284217B1 (en) 2014-03-05 2019-05-07 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
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
US10545561B2 (en) 2016-08-10 2020-01-28 Cirrus Logic, Inc. Multi-path digitation based on input signal fidelity and output requirements
US10263630B2 (en) 2016-08-11 2019-04-16 Cirrus Logic, Inc. Multi-path analog front end with adaptive path
US9813814B1 (en) 2016-08-23 2017-11-07 Cirrus Logic, Inc. Enhancing dynamic range based on spectral content of signal
US9780800B1 (en) 2016-09-19 2017-10-03 Cirrus Logic, Inc. Matching paths in a multiple path analog-to-digital converter
US9762255B1 (en) 2016-09-19 2017-09-12 Cirrus Logic, Inc. Reconfiguring 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
US10755722B2 (en) * 2018-08-29 2020-08-25 Guoguang Electric Company Limited Multiband audio signal dynamic range compression with overshoot suppression

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JPS5752239A (en) * 1980-09-09 1982-03-27 Sony Corp Noise reducing circuit

Also Published As

Publication number Publication date
CH666585A5 (de) 1988-07-29
BR8302311A (pt) 1984-01-03
ES522078A0 (es) 1984-10-01
GB8312217D0 (en) 1983-06-08
DK200983D0 (da) 1983-05-05
NL8301572A (nl) 1983-12-01
DE3315519C2 (da) 1991-11-07
JPS58218245A (ja) 1983-12-19
FR2526608A1 (fr) 1983-11-10
KR840004991A (ko) 1984-10-31
FR2526608B1 (fr) 1989-01-13
DK162911B (da) 1991-12-23
US4493091A (en) 1985-01-08
CA1218157A (en) 1987-02-17
GB2121253B (en) 1986-02-12
GB2121253A (en) 1983-12-14
BE896674A (fr) 1983-09-01
DE3315519A1 (de) 1983-11-10
ES8500530A1 (es) 1984-10-01

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