MX2007001950A - Filtro digital recursivo configurable que procesa senales de audio de television. - Google Patents

Filtro digital recursivo configurable que procesa senales de audio de television.

Info

Publication number
MX2007001950A
MX2007001950A MX2007001950A MX2007001950A MX2007001950A MX 2007001950 A MX2007001950 A MX 2007001950A MX 2007001950 A MX2007001950 A MX 2007001950A MX 2007001950 A MX2007001950 A MX 2007001950A MX 2007001950 A MX2007001950 A MX 2007001950A
Authority
MX
Mexico
Prior art keywords
audio signals
configurable
digital filter
difference signal
television audio
Prior art date
Application number
MX2007001950A
Other languages
English (en)
Inventor
Matthew Barnhill
Original Assignee
That 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 That Corp filed Critical That Corp
Publication of MX2007001950A publication Critical patent/MX2007001950A/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Systems (AREA)
  • Amplifiers (AREA)
  • Stereophonic System (AREA)

Abstract

Un codificador de senal de audio de television incluye un dispositivo que suma una senal de audio de canal izquierdo y una senal de audio de canal derecho para producir una senal de suma. El dispositivo tambien sustrae una de las senales de audio izquierda y derecha a partir de la otra para producir una senal de diferencia. El codificador tambien incluye un filtro digital de respuesta de impulsos infinitos susceptible de ser configurado, el cual utiliza, de manera selectiva, uno o mas conjuntos de coeficiente de filtro para filtrar la senal de diferencia. El conjunto de coeficientes de filtro es aplicado en la senal de diferencia a traves de un multiplicador unico en un modo recursivo a efecto de preparar la senal de diferencia para su transmision.
MX2007001950A 2004-08-17 2005-08-16 Filtro digital recursivo configurable que procesa senales de audio de television. MX2007001950A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60216904P 2004-08-17 2004-08-17
PCT/US2005/029108 WO2006023490A2 (en) 2004-08-17 2005-08-16 Configurable recursive digital filter for processing television audio signals

Publications (1)

Publication Number Publication Date
MX2007001950A true MX2007001950A (es) 2007-07-11

Family

ID=35968107

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007001950A MX2007001950A (es) 2004-08-17 2005-08-16 Filtro digital recursivo configurable que procesa senales de audio de television.

Country Status (10)

Country Link
US (2) US7822210B2 (es)
EP (1) EP1787409A4 (es)
JP (1) JP4970259B2 (es)
KR (1) KR101335359B1 (es)
CN (1) CN101088237B (es)
CA (1) CA2577395C (es)
MX (1) MX2007001950A (es)
SG (1) SG155221A1 (es)
TW (1) TWI433555B (es)
WO (1) WO2006023490A2 (es)

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US8111791B2 (en) * 2005-12-20 2012-02-07 Sirf Technology, Inc. Differential evolution design of polyphase IIR decimation filters
JP5059508B2 (ja) * 2007-07-26 2012-10-24 ルネサスエレクトロニクス株式会社 マイクロプロセッサ
US8073150B2 (en) * 2009-04-28 2011-12-06 Bose Corporation Dynamically configurable ANR signal processing topology
US8165313B2 (en) * 2009-04-28 2012-04-24 Bose Corporation ANR settings triple-buffering
US8073151B2 (en) * 2009-04-28 2011-12-06 Bose Corporation Dynamically configurable ANR filter block topology
US8184822B2 (en) * 2009-04-28 2012-05-22 Bose Corporation ANR signal processing topology
US8090114B2 (en) 2009-04-28 2012-01-03 Bose Corporation Convertible filter
US9131313B1 (en) * 2012-02-07 2015-09-08 Star Co. System and method for audio reproduction
KR101920719B1 (ko) 2012-11-19 2019-02-13 삼성전자주식회사 논리 장치, 논리 장치를 포함하는 디지털 필터 및 논리 장치를 제어하는 방법
US10074417B2 (en) * 2014-11-20 2018-09-11 Rambus Inc. Memory systems and methods for improved power management
CN110139193B (zh) * 2018-02-02 2021-10-08 深圳市三诺数字科技有限公司 音箱系统及空间声的生成方法
US10755721B1 (en) * 2019-04-30 2020-08-25 Synaptics Incorporated Multichannel, multirate, lattice wave filter systems and methods
CN116860124B (zh) * 2023-09-04 2024-05-03 深圳市坤巨实业有限公司 一种触摸屏的噪声控制方法及系统

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US4983959A (en) * 1986-10-01 1991-01-08 Texas Instruments Incorporated Logic output macrocell
JPS6394715A (ja) * 1986-10-01 1988-04-25 テキサス　インスツルメンツ　インコーポレイテッド 論理出力マクロセル
US4747140A (en) * 1986-12-24 1988-05-24 Rca Corporation Low distortion filters for separating frequency or phase modulated signals from composite signals
DE3784946D1 (de) * 1987-11-06 1993-04-22 Itt Ind Gmbh Deutsche Tonkanalschaltung fuer digitale fernsehempfaenger.
US5377272A (en) * 1992-08-28 1994-12-27 Thomson Consumer Electronics, Inc. Switched signal processing circuit
JPH0793550B2 (ja) * 1993-05-27 1995-10-09 カシオ計算機株式会社 デジタルフィルタ
US5796842A (en) 1996-06-07 1998-08-18 That Corporation BTSC encoder
US5886735A (en) * 1997-01-14 1999-03-23 Bullister; Edward T Video telephone headset
US6037993A (en) * 1997-03-17 2000-03-14 Antec Corporation Digital BTSC compander system
JPH114461A (ja) * 1997-06-11 1999-01-06 Fujitsu General Ltd 赤外線画像伝送システム
US6259482B1 (en) * 1998-03-11 2001-07-10 Matthew F. Easley Digital BTSC compander system
JP2000138547A (ja) * 1998-11-02 2000-05-16 Matsushita Electric Ind Co Ltd 機能可変型音声調整装置および機能可変音声調整手順を記録した記録媒体
US6588867B1 (en) * 1999-02-18 2003-07-08 Arris International, Inc. Reciprocal index lookup for BTSC compatible coefficients
US20030054774A1 (en) * 2001-03-22 2003-03-20 Quicksilver Technology, Inc. Method and system for managing hardware resources to implement system acquisition using an adaptive computing architecture
EP1296455A1 (en) * 2001-09-25 2003-03-26 Sony International (Europe) GmbH Memory-efficient realization of a digital filter
US7079657B2 (en) * 2002-02-26 2006-07-18 Broadcom Corporation System and method of performing digital multi-channel audio signal decoding
WO2004047074A2 (en) * 2002-11-19 2004-06-03 Cable Electronics, Inc. Digitally decoding an mts signal
US7532728B2 (en) * 2003-08-14 2009-05-12 Broadcom Corporation Mechanism for using the allpass decomposition architecture for the cauer low pass filter used in a BTSC
US7277860B2 (en) * 2003-08-14 2007-10-02 Broadcom Corporation Mechanism for using clamping and offset techniques to adjust the spectral and wideband gains in the feedback loops of a BTSC encoder
EP1743505A4 (en) * 2004-03-24 2010-10-20 That Corp CONFIGURABLE FILTER USED FOR PROCESSING TELEVISION AUDIO SIGNALS

Also Published As

Publication number Publication date
US7822210B2 (en) 2010-10-26
TW200628000A (en) 2006-08-01
JP4970259B2 (ja) 2012-07-04
US20110026719A1 (en) 2011-02-03
EP1787409A4 (en) 2010-10-20
WO2006023490A3 (en) 2007-03-01
CA2577395A1 (en) 2006-03-02
CN101088237B (zh) 2013-02-06
KR101335359B1 (ko) 2013-12-03
WO2006023490A2 (en) 2006-03-02
CN101088237A (zh) 2007-12-12
CA2577395C (en) 2013-12-10
JP2008510435A (ja) 2008-04-03
KR20070058506A (ko) 2007-06-08
EP1787409A2 (en) 2007-05-23
US20060056640A1 (en) 2006-03-16
SG155221A1 (en) 2009-09-30
TWI433555B (zh) 2014-04-01
US8582780B2 (en) 2013-11-12

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