HK1062348A1 - Apparatus and method for enhanced conversion of wideband signals to narrowband signals - Google Patents

Apparatus and method for enhanced conversion of wideband signals to narrowband signals

Info

Publication number
HK1062348A1
HK1062348A1 HK04105225A HK04105225A HK1062348A1 HK 1062348 A1 HK1062348 A1 HK 1062348A1 HK 04105225 A HK04105225 A HK 04105225A HK 04105225 A HK04105225 A HK 04105225A HK 1062348 A1 HK1062348 A1 HK 1062348A1
Authority
HK
Hong Kong
Prior art keywords
signals
enhanced conversion
narrowband
wideband
wideband signals
Prior art date
Application number
HK04105225A
Other languages
English (en)
Inventor
Khaled H El-Maleh
Arasanipala Ananthapadmanabhan
Andrew P Dejaco
Original Assignee
Qualcomm 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25092052&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1062348(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of HK1062348A1 publication Critical patent/HK1062348A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • 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
    • G10L19/26—Pre-filtering or post-filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Telephonic Communication Services (AREA)
HK04105225A 2001-01-24 2004-07-16 Apparatus and method for enhanced conversion of wideband signals to narrowband signals HK1062348A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/771,508 US7113522B2 (en) 2001-01-24 2001-01-24 Enhanced conversion of wideband signals to narrowband signals
PCT/US2002/001901 WO2002060075A2 (en) 2001-01-24 2002-01-23 Enhanced conversion of wideband signals to narrowband signals

Publications (1)

Publication Number Publication Date
HK1062348A1 true HK1062348A1 (en) 2004-10-29

Family

ID=25092052

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04105225A HK1062348A1 (en) 2001-01-24 2004-07-16 Apparatus and method for enhanced conversion of wideband signals to narrowband signals

Country Status (11)

Country Link
US (3) US7113522B2 (xx)
EP (1) EP1354416B1 (xx)
JP (3) JP4330879B2 (xx)
KR (1) KR100856684B1 (xx)
CN (1) CN1292401C (xx)
AU (1) AU2002240028A1 (xx)
BR (2) BR0206664A (xx)
ES (1) ES2408220T3 (xx)
HK (1) HK1062348A1 (xx)
TW (1) TW527790B (xx)
WO (1) WO2002060075A2 (xx)

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US8086451B2 (en) * 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
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US9947340B2 (en) * 2008-12-10 2018-04-17 Skype Regeneration of wideband speech
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CN101964189B (zh) * 2010-04-28 2012-08-08 华为技术有限公司 语音频信号切换方法及装置
CN105469805B (zh) 2012-03-01 2018-01-12 华为技术有限公司 一种语音频信号处理方法和装置
US10043535B2 (en) 2013-01-15 2018-08-07 Staton Techiya, Llc Method and device for spectral expansion for an audio signal
JP6201043B2 (ja) 2013-06-21 2017-09-20 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． エラー封じ込め中の切替音声符号化システムについての向上した信号フェードアウトのための装置及び方法
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Also Published As

Publication number Publication date
JP4330879B2 (ja) 2009-09-16
JP5199147B2 (ja) 2013-05-15
TW527790B (en) 2003-04-11
CN1292401C (zh) 2006-12-27
JP5129201B2 (ja) 2013-01-30
KR100856684B1 (ko) 2008-09-04
WO2002060075A3 (en) 2002-10-31
US7577563B2 (en) 2009-08-18
US20090281796A1 (en) 2009-11-12
AU2002240028A1 (en) 2002-08-06
EP1354416B1 (en) 2013-04-24
JP2010016828A (ja) 2010-01-21
US8358617B2 (en) 2013-01-22
ES2408220T3 (es) 2013-06-19
JP2004524560A (ja) 2004-08-12
CN1488137A (zh) 2004-04-07
BR0206664A (pt) 2004-12-28
BRPI0206664B1 (pt) 2018-09-25
US7113522B2 (en) 2006-09-26
KR20030072603A (ko) 2003-09-15
JP2009187012A (ja) 2009-08-20
US20030012221A1 (en) 2003-01-16
WO2002060075A2 (en) 2002-08-01
US20070162279A1 (en) 2007-07-12
EP1354416A2 (en) 2003-10-22

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110123