BRPI0500673A - Sistema de codec de áudio e método de codificação de sinal de áudio usando o mesmo - Google Patents

Sistema de codec de áudio e método de codificação de sinal de áudio usando o mesmo

Info

Publication number
BRPI0500673A
BRPI0500673A BR0500673-2A BRPI0500673A BRPI0500673A BR PI0500673 A BRPI0500673 A BR PI0500673A BR PI0500673 A BRPI0500673 A BR PI0500673A BR PI0500673 A BRPI0500673 A BR PI0500673A
Authority
BR
Brazil
Prior art keywords
same
codec system
audio
encoding
signal coding
Prior art date
Application number
BR0500673-2A
Other languages
English (en)
Inventor
Yong Chul Park
Jung Min Song
Jae Hyuck Lee
Jun Yup Lee
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of BRPI0500673A publication Critical patent/BRPI0500673A/pt

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
    • G10L19/04—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 using predictive techniques
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
    • H05B41/2325—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes

Landscapes

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

Abstract

"SISTEMA DE CODEC DE áUDIO E MéTODO DE CODIFICAçãO DE SINAL DE áUDIO USANDO O MESMO". Descreve-se um sistema de codec de áudio e um método de codificação usando o mesmo. De acordo com o método, os processos de codificação e decodificação são executados repetidamente de modo a determinar parâmetros de codificação otimizados quando sinais de áudio analógicos são codificados. Os processos de codificar e decodificar sinais de áudio analógicos usando parâmetros de codificação iniciais, e computar novos parâmetros usando um diferencial computado durante o processo de codificação, são repetidamente executados.
BR0500673-2A 2004-02-26 2005-02-25 Sistema de codec de áudio e método de codificação de sinal de áudio usando o mesmo BRPI0500673A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040013130A KR100629997B1 (ko) 2004-02-26 2004-02-26 오디오 신호의 인코딩 방법

Publications (1)

Publication Number Publication Date
BRPI0500673A true BRPI0500673A (pt) 2005-10-18

Family

ID=34747955

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0500673-2A BRPI0500673A (pt) 2004-02-26 2005-02-25 Sistema de codec de áudio e método de codificação de sinal de áudio usando o mesmo

Country Status (5)

Country Link
US (1) US7801732B2 (pt)
EP (1) EP1569204A1 (pt)
KR (1) KR100629997B1 (pt)
CN (1) CN100521549C (pt)
BR (1) BRPI0500673A (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7461106B2 (en) 2006-09-12 2008-12-02 Motorola, Inc. Apparatus and method for low complexity combinatorial coding of signals
JP4325657B2 (ja) * 2006-10-02 2009-09-02 ソニー株式会社 光ディスク再生装置、信号処理方法、およびプログラム
US8576096B2 (en) * 2007-10-11 2013-11-05 Motorola Mobility Llc Apparatus and method for low complexity combinatorial coding of signals
US8639519B2 (en) * 2008-04-09 2014-01-28 Motorola Mobility Llc Method and apparatus for selective signal coding based on core encoder performance
US9883312B2 (en) 2013-05-29 2018-01-30 Qualcomm Incorporated Transformed higher order ambisonics audio data
US10770087B2 (en) * 2014-05-16 2020-09-08 Qualcomm Incorporated Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
CN105895106B (zh) * 2016-03-18 2020-01-24 南京青衿信息科技有限公司 一种全景声编码方法
JP6852478B2 (ja) * 2017-03-14 2021-03-31 株式会社リコー 通信端末、通信プログラム及び通信方法
CN117409794B (zh) * 2023-12-13 2024-03-15 深圳市声菲特科技技术有限公司 音频信号处理方法、系统、计算机设备及存储介质
CN117854514B (zh) * 2024-03-06 2024-05-31 深圳市增长点科技有限公司 一种音质保真的无线耳机通信解码优化方法及系统

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631520A (en) * 1968-08-19 1971-12-28 Bell Telephone Labor Inc Predictive coding of speech signals
US4748620A (en) * 1986-02-28 1988-05-31 American Telephone And Telegraph Company, At&T Bell Laboratories Time stamp and packet virtual sequence numbering for reconstructing information signals from packets
US5182773A (en) * 1991-03-22 1993-01-26 International Business Machines Corporation Speaker-independent label coding apparatus
EP1763020A3 (en) * 1991-06-11 2010-09-29 Qualcomm Incorporated Variable rate vocoder
JP3013876B2 (ja) 1995-01-31 2000-02-28 日本ビクター株式会社 変換符号化装置
IT1281001B1 (it) * 1995-10-27 1998-02-11 Cselt Centro Studi Lab Telecom Procedimento e apparecchiatura per codificare, manipolare e decodificare segnali audio.
KR100261254B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치
KR100261253B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 부호화/복호화 방법및 장치
DE19742201C1 (de) * 1997-09-24 1999-02-04 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Codieren von Audiosignalen
KR100335609B1 (ko) * 1997-11-20 2002-10-04 삼성전자 주식회사 비트율조절이가능한오디오부호화/복호화방법및장치
US6115689A (en) * 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
US6456964B2 (en) * 1998-12-21 2002-09-24 Qualcomm, Incorporated Encoding of periodic speech using prototype waveforms
US6549147B1 (en) * 1999-05-21 2003-04-15 Nippon Telegraph And Telephone Corporation Methods, apparatuses and recorded medium for reversible encoding and decoding
JP2002014697A (ja) * 2000-06-30 2002-01-18 Hitachi Ltd ディジタルオーディオ装置
GB2364843A (en) 2000-07-14 2002-02-06 Sony Uk Ltd Data encoding based on data quantity and data quality
US6678651B2 (en) * 2000-09-15 2004-01-13 Mindspeed Technologies, Inc. Short-term enhancement in CELP speech coding
US7653646B2 (en) * 2001-05-14 2010-01-26 Ramot At Tel Aviv University Ltd. Method and apparatus for quantum clustering
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
AU2003213149A1 (en) * 2002-02-21 2003-09-09 The Regents Of The University Of California Scalable compression of audio and other signals
DE60214599T2 (de) * 2002-03-12 2007-09-13 Nokia Corp. Skalierbare audiokodierung
KR100552680B1 (ko) 2003-02-17 2006-02-20 삼성전자주식회사 다중 안테나 ｏｆｄｍ 통신 시스템에서의 ｐａｐｒ 저감방법 및 이를 사용하는 다중 안테나 ｏｆｄｍ 통신 시스템
US8588326B2 (en) 2004-07-07 2013-11-19 Apple Inc. System and method for mapping symbols for MIMO transmission
US8032359B2 (en) * 2007-02-14 2011-10-04 Mindspeed Technologies, Inc. Embedded silence and background noise compression

Also Published As

Publication number Publication date
KR20050087366A (ko) 2005-08-31
EP1569204A1 (en) 2005-08-31
US20050192796A1 (en) 2005-09-01
CN1661924A (zh) 2005-08-31
KR100629997B1 (ko) 2006-09-27
CN100521549C (zh) 2009-07-29
US7801732B2 (en) 2010-09-21

Similar Documents

Publication Publication Date Title
BRPI0500673A (pt) Sistema de codec de áudio e método de codificação de sinal de áudio usando o mesmo
AU2002215138A1 (en) Method and system for speech frame error concealment in speech decoding
BRPI0410856A (pt) métodos de codificar e de decodificar sinais polifÈnicos, aparelho de codificador, e, sistema de áudio
BRPI0511158A (pt) método para suportar uma codificação de um sinal de áudio, módulo para codificar seções consecutivas de um sinal de áudio, dispositivo eletrÈnico, sistema de codificação de áudio, e, produto de programa de software
BRPI0610909A2 (pt) codificador/decodificador de voz em sub-bandas com dicionÁrios de càdigos multiestÁgios e codificaÇço redundante
BRPI0406980A (pt) Modos de comutação controlada pelo usuário de difusão em estágios de modo robusto
DE59602898D1 (de) Verfahren und vorrichtung zur skalierbaren codierung von audiosignalen
BRPI0520729A2 (pt) método para codificar sinais de áudio; codificador para codificar sinais de áudio; decodificador para decodificar sinais de áudio; sistema para compressão digital de áudio; produto programa de computador para codificar sinais de áudio; produto programa de computador; e produto programa de computador para decodificar fluxo contìnuo de bits
WO2007007263A3 (en) Audio encoding and decoding
EP2094031A3 (de) Vorrichtung und Verfahren zum Erzeugen eines codierten Stereo-Signals eines Audiostücks oder Audiodatenstroms
MY183707A (en) Selective post filter
BR0305434A (pt) Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem
ATE511690T1 (de) Akustisches kommunikationssystem
DE60135826D1 (de) Verfahren und gerät zur unterstützung von adaptiver mehrraten-datenübertragung in einem cdma nachrichtenübertragungssystem
BRPI0516309A (pt) sistema de compressão de uma corrente de dados de vìdeo, método de compressão de uma corrente de dados de vìdeo e método de formação de uma corrente de dados codificada
BRPI0509110A (pt) método e dispositivo para processar um sinal estéreo, aparelhos codificador e decodificador, e, sistema de áudio
ATE343126T1 (de) Analytische instrumente und biosensoren sowie verfahren zur erhöhung ihrer genauigkeit und einsatzdauer
TWI365610B (en) Systems and methods for scalably encoding and decoding data
MX2010003897A (es) Aparato y metodo para codificacion combinatoria de baja complejidad de señales.
BR9606800B1 (pt) método e aparelho para detecção e desvio de sintetização de voz tipo "tandem".
WO2007004828A3 (en) Apparatus for encoding and decoding audio signal and method thereof
HK1127664A1 (en) Apparatus for encoding and decoding audio signal and method thereof
ATE281712T1 (de) Verfahren zur kodierung oder dekodierung und vorrichtung zum kodieren oder dekodieren
ATE205041T1 (de) Verfahren und vorrichtung zum codieren eines zeitdiskreten stereosignals
DE602008002254D1 (de) Verfahren und vorrichtung zum verarbeiten codierter audiodaten

Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 12A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]