DE3676500D1 - Verfahren und vorrichtung zur codierung und decodierung von analogsignalen. - Google Patents

Verfahren und vorrichtung zur codierung und decodierung von analogsignalen.

Info

Publication number
DE3676500D1
DE3676500D1 DE8686906663T DE3676500T DE3676500D1 DE 3676500 D1 DE3676500 D1 DE 3676500D1 DE 8686906663 T DE8686906663 T DE 8686906663T DE 3676500 T DE3676500 T DE 3676500T DE 3676500 D1 DE3676500 D1 DE 3676500D1
Authority
DE
Germany
Prior art keywords
signal
clipped
digitized
reconstruction
decoder
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.)
Expired - Lifetime
Application number
DE8686906663T
Other languages
English (en)
Inventor
Khaled Jibbe
Allan Demoss
August Hoyer
Edward Furry
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.)
SK Hynix Inc
NCR International Inc
Original Assignee
NCR 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 NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of DE3676500D1 publication Critical patent/DE3676500D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE8686906663T 1985-11-14 1986-10-24 Verfahren und vorrichtung zur codierung und decodierung von analogsignalen. Expired - Lifetime DE3676500D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/798,057 US5136652A (en) 1985-11-14 1985-11-14 Amplitude enhanced sampled clipped speech encoder and decoder
PCT/US1986/002244 WO1987003128A1 (en) 1985-11-14 1986-10-24 Analog signal encoding and decoding apparatus and methods

Publications (1)

Publication Number Publication Date
DE3676500D1 true DE3676500D1 (de) 1991-02-07

Family

ID=25172428

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686906663T Expired - Lifetime DE3676500D1 (de) 1985-11-14 1986-10-24 Verfahren und vorrichtung zur codierung und decodierung von analogsignalen.

Country Status (6)

Country Link
US (1) US5136652A (de)
EP (1) EP0245363B1 (de)
JP (1) JPH07123243B2 (de)
CA (1) CA1295421C (de)
DE (1) DE3676500D1 (de)
WO (1) WO1987003128A1 (de)

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US5230038A (en) * 1989-01-27 1993-07-20 Fielder Louis D Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
GB8910981D0 (en) * 1989-05-12 1989-06-28 Hi Med Instr Limited Digital waveform encoder and generator
GB9008162D0 (en) * 1990-04-10 1990-06-06 British Telecomm Signal distribution
US5278944A (en) * 1992-07-15 1994-01-11 Kokusai Electric Co., Ltd. Speech coding circuit
US6377862B1 (en) * 1997-02-19 2002-04-23 Victor Company Of Japan, Ltd. Method for processing and reproducing audio signal
US6091687A (en) * 1997-12-19 2000-07-18 Philips Electronics N.A. Corporation Method and apparatus for maximum likelihood detection
US6014093A (en) * 1998-02-27 2000-01-11 Hayes; Adam T. Pulse coding system
US8235286B2 (en) * 2005-12-19 2012-08-07 International Frontier Technology Laboratory, Inc. Card capable of authentication
CN101496387B (zh) 2006-03-06 2012-09-05 思科技术公司 用于移动无线网络中的接入认证的系统和方法
US7679639B2 (en) * 2006-04-20 2010-03-16 Cisco Technology, Inc. System and method for enhancing eye gaze in a telepresence system
US7692680B2 (en) * 2006-04-20 2010-04-06 Cisco Technology, Inc. System and method for providing location specific sound in a telepresence system
ITPR20060054A1 (it) * 2006-06-13 2007-12-14 Techimp S R L Strumento e procedimento di rilevazione di scariche elettriche parziali in un sistema elettrico
USD610105S1 (en) 2006-07-10 2010-02-16 Cisco Technology, Inc. Telepresence system
US8570373B2 (en) * 2007-06-08 2013-10-29 Cisco Technology, Inc. Tracking an object utilizing location information associated with a wireless device
US8797377B2 (en) 2008-02-14 2014-08-05 Cisco Technology, Inc. Method and system for videoconference configuration
US8355041B2 (en) 2008-02-14 2013-01-15 Cisco Technology, Inc. Telepresence system for 360 degree video conferencing
US8319819B2 (en) 2008-03-26 2012-11-27 Cisco Technology, Inc. Virtual round-table videoconference
US8390667B2 (en) 2008-04-15 2013-03-05 Cisco Technology, Inc. Pop-up PIP for people not in picture
US8694658B2 (en) 2008-09-19 2014-04-08 Cisco Technology, Inc. System and method for enabling communication sessions in a network environment
US8477175B2 (en) 2009-03-09 2013-07-02 Cisco Technology, Inc. System and method for providing three dimensional imaging in a network environment
US8659637B2 (en) 2009-03-09 2014-02-25 Cisco Technology, Inc. System and method for providing three dimensional video conferencing in a network environment
US8659639B2 (en) 2009-05-29 2014-02-25 Cisco Technology, Inc. System and method for extending communications between participants in a conferencing environment
US9082297B2 (en) 2009-08-11 2015-07-14 Cisco Technology, Inc. System and method for verifying parameters in an audiovisual environment
US9225916B2 (en) 2010-03-18 2015-12-29 Cisco Technology, Inc. System and method for enhancing video images in a conferencing environment
USD626102S1 (en) 2010-03-21 2010-10-26 Cisco Tech Inc Video unit with integrated features
USD626103S1 (en) 2010-03-21 2010-10-26 Cisco Technology, Inc. Video unit with integrated features
US9313452B2 (en) 2010-05-17 2016-04-12 Cisco Technology, Inc. System and method for providing retracting optics in a video conferencing environment
US8896655B2 (en) 2010-08-31 2014-11-25 Cisco Technology, Inc. System and method for providing depth adaptive video conferencing
US8599934B2 (en) 2010-09-08 2013-12-03 Cisco Technology, Inc. System and method for skip coding during video conferencing in a network environment
US8599865B2 (en) 2010-10-26 2013-12-03 Cisco Technology, Inc. System and method for provisioning flows in a mobile network environment
US8699457B2 (en) 2010-11-03 2014-04-15 Cisco Technology, Inc. System and method for managing flows in a mobile network environment
US9338394B2 (en) 2010-11-15 2016-05-10 Cisco Technology, Inc. System and method for providing enhanced audio in a video environment
US8902244B2 (en) 2010-11-15 2014-12-02 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US9143725B2 (en) 2010-11-15 2015-09-22 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US8730297B2 (en) 2010-11-15 2014-05-20 Cisco Technology, Inc. System and method for providing camera functions in a video environment
US8542264B2 (en) 2010-11-18 2013-09-24 Cisco Technology, Inc. System and method for managing optics in a video environment
US8723914B2 (en) 2010-11-19 2014-05-13 Cisco Technology, Inc. System and method for providing enhanced video processing in a network environment
US9111138B2 (en) 2010-11-30 2015-08-18 Cisco Technology, Inc. System and method for gesture interface control
USD678894S1 (en) 2010-12-16 2013-03-26 Cisco Technology, Inc. Display screen with graphical user interface
USD682293S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
USD682864S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen with graphical user interface
USD682854S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen for graphical user interface
USD678320S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD678307S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD682294S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
USD678308S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
US8692862B2 (en) 2011-02-28 2014-04-08 Cisco Technology, Inc. System and method for selection of video data in a video conference environment
US8670019B2 (en) 2011-04-28 2014-03-11 Cisco Technology, Inc. System and method for providing enhanced eye gaze in a video conferencing environment
US8786631B1 (en) 2011-04-30 2014-07-22 Cisco Technology, Inc. System and method for transferring transparency information in a video environment
US8934026B2 (en) 2011-05-12 2015-01-13 Cisco Technology, Inc. System and method for video coding in a dynamic environment
US8947493B2 (en) 2011-11-16 2015-02-03 Cisco Technology, Inc. System and method for alerting a participant in a video conference
US8682087B2 (en) 2011-12-19 2014-03-25 Cisco Technology, Inc. System and method for depth-guided image filtering in a video conference environment
US9681154B2 (en) 2012-12-06 2017-06-13 Patent Capital Group System and method for depth-guided filtering in a video conference environment
US9843621B2 (en) 2013-05-17 2017-12-12 Cisco Technology, Inc. Calendaring activities based on communication processing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953644A (en) * 1956-10-04 1960-09-20 Bell Telephone Labor Inc Wave transmission system
US4070550A (en) * 1961-06-28 1978-01-24 The United States Of America As Represented By The Secretary Of The Navy Quantized pulse modulated nonsynchronous clipped speech multi-channel coded communication system
NL7410763A (nl) * 1974-08-12 1976-02-16 Philips Nv Digitaal transmissiestelsel voor het met een lage pulsfrequentie(bit-rate)overdragen van gespreks- signalen en een zender voor toepassing in zulk een stelsel.
US3974336A (en) * 1975-05-27 1976-08-10 Iowa State University Research Foundation, Inc. Speech processing system
US4015088A (en) * 1975-10-31 1977-03-29 Bell Telephone Laboratories, Incorporated Real-time speech analyzer
US4271332A (en) * 1979-06-04 1981-06-02 Anderson James C Speech signal A/D converter using an instantaneously-variable bandwidth filter
US4477925A (en) * 1981-12-11 1984-10-16 Ncr Corporation Clipped speech-linear predictive coding speech processor

Also Published As

Publication number Publication date
EP0245363B1 (de) 1991-01-02
CA1295421C (en) 1992-02-04
JPH07123243B2 (ja) 1995-12-25
JPS63501328A (ja) 1988-05-19
WO1987003128A1 (en) 1987-05-21
US5136652A (en) 1992-08-04
EP0245363A1 (de) 1987-11-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL INC., DAYTON, OHIO, US

8328 Change in the person/name/address of the agent

Free format text: KAHLER, K., DIPL.-ING., 8948 MINDELHEIM KAECK, J., DIPL.-ING. DIPL.-WIRTSCH.-ING., 8910 LANDSBERG FIENER, J., PAT.-ANWAELTE, 8948 MINDELHEIM

8327 Change in the person/name/address of the patent owner

Owner name: AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL IN

8327 Change in the person/name/address of the patent owner

Owner name: AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL IN

8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DELAWAR

8327 Change in the person/name/address of the patent owner

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DELAWAR

8328 Change in the person/name/address of the agent

Free format text: V. BEZOLD & SOZIEN, 80799 MUENCHEN

8339 Ceased/non-payment of the annual fee
8327 Change in the person/name/address of the patent owner

Owner name: HYNIX SEMICONDUCTOR INC., ICHON, KYONGGI, KR

Owner name: NCR INTERNATIONAL, INC. (N.D.GES.D.STAATES DEL, US