DE69209367D1 - System zur Auslöschung des Echos - Google Patents

System zur Auslöschung des Echos

Info

Publication number
DE69209367D1
DE69209367D1 DE69209367T DE69209367T DE69209367D1 DE 69209367 D1 DE69209367 D1 DE 69209367D1 DE 69209367 T DE69209367 T DE 69209367T DE 69209367 T DE69209367 T DE 69209367T DE 69209367 D1 DE69209367 D1 DE 69209367D1
Authority
DE
Germany
Prior art keywords
echo cancellation
cancellation system
echo
cancellation
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 - Fee Related
Application number
DE69209367T
Other languages
English (en)
Other versions
DE69209367T2 (de
Inventor
Craig Bradley Greenberg
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of DE69209367D1 publication Critical patent/DE69209367D1/de
Application granted granted Critical
Publication of DE69209367T2 publication Critical patent/DE69209367T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0286—Combinations of filter structures
    • H03H17/0288—Recursive, non-recursive, ladder, lattice structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DE69209367T 1991-05-28 1992-05-19 System zur Auslöschung des Echos Expired - Fee Related DE69209367T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/705,823 US5278872A (en) 1991-05-28 1991-05-28 System and circuit architecture for echo cancellation and a television receiver comprising same

Publications (2)

Publication Number Publication Date
DE69209367D1 true DE69209367D1 (de) 1996-05-02
DE69209367T2 DE69209367T2 (de) 1996-10-02

Family

ID=24835098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69209367T Expired - Fee Related DE69209367T2 (de) 1991-05-28 1992-05-19 System zur Auslöschung des Echos

Country Status (5)

Country Link
US (2) US5278872A (de)
EP (1) EP0516216B1 (de)
JP (1) JPH05183474A (de)
KR (1) KR100274282B1 (de)
DE (1) DE69209367T2 (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179444A (en) * 1990-10-09 1993-01-12 North American Philips Corporation System for echo cancellation comprising an improved ghost cancellation reference signal
DE4124834A1 (de) * 1991-07-26 1993-01-28 Telefunken Systemtechnik Verfahren zur signalverarbeitung
DE4236272A1 (de) * 1992-10-27 1994-04-28 Siemens Ag Echokompensationsvorrichtung und 4/2-Drahtschnittstelle mit einer solchen Echokompensationsvorrichtung
US5331416A (en) * 1992-12-02 1994-07-19 Samsung Electronics Co., Ltd. Methods for operating ghost-cancelation circuitry for TV receiver or video recorder
US5345273A (en) * 1993-03-19 1994-09-06 Industrial Technology Research Institute Ghost canceller with variable delay selector
US5375146A (en) * 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
US5321512A (en) * 1993-05-07 1994-06-14 Zoran Corporation Ghost signal cancellation system using feedforward and feedback filters for television signals
US5386243A (en) * 1993-07-22 1995-01-31 Zoran Corporation Ghost signal cancellation system for television signals
KR960012019B1 (ko) * 1993-11-18 1996-09-09 엘지전자 주식회사 에이치디티브이(hdtv)의 채널등화기
JPH07192398A (ja) * 1993-12-27 1995-07-28 Sharp Corp 再生波形等化回路
US5521946A (en) * 1994-01-07 1996-05-28 The 3Do Company Multi-phase filter/DAC
DE4430189A1 (de) * 1994-08-25 1996-02-29 Sel Alcatel Ag Verfahren zur adaptiven Echokompensation
US5495473A (en) * 1994-12-28 1996-02-27 Intel Corporation Method and apparatus for implementing hardware independent echo cancellation in a full-duplex audio stream in a computer system
US5838382A (en) * 1996-06-26 1998-11-17 Intel Corporation Method and apparatus for optimizing starting point for run-in clock recovery
US5953065A (en) * 1996-06-26 1999-09-14 Intel Corporation Method and apparatus for common vertical blanking interval scan line decoding
US5926491A (en) * 1996-06-26 1999-07-20 Intel Corporation Noise tolerant run-in clock recovery method and apparatus
US6268888B1 (en) * 1996-06-26 2001-07-31 Intel Corporation Mechanism for adaptive selection of anti-ghosting filtering
US6377308B1 (en) 1996-06-26 2002-04-23 Intel Corporation Method and apparatus for line-specific decoding of VBI scan lines
US5812217A (en) * 1996-06-26 1998-09-22 Intel Corporation Automatically adjusting anti-ghosting filter coefficients when the coefficients exceed particular values
US5953411A (en) * 1996-12-18 1999-09-14 Intel Corporation Method and apparatus for maintaining audio sample correlation
US5812207A (en) * 1996-12-20 1998-09-22 Intel Corporation Method and apparatus for supporting variable oversampling ratios when decoding vertical blanking interval data
US5933797A (en) * 1997-02-28 1999-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive dual filter echo cancellation
US6377619B1 (en) * 1997-09-26 2002-04-23 Agere Systems Guardian Corp. Filter structure and method
US6480534B1 (en) * 1997-10-08 2002-11-12 Texas Instruments Incorporated Apparatus and method for a reduced component equalizer circuit
DE19839644C2 (de) * 1998-08-31 2001-02-15 Siemens Ag Verfahren zur Entzerrung eines Farbfernsehsignals
US6678254B1 (en) * 1999-05-03 2004-01-13 Nortel Networks Limited Method and communication device for optimizing echo cancellation
US6480532B1 (en) * 1999-07-13 2002-11-12 Stmicroelectronics, Inc. Echo cancellation for an ADSL modem
KR100561390B1 (ko) * 1999-08-27 2006-03-16 삼성전자주식회사 디지털 에코 제거장치
US6952238B2 (en) * 2001-05-01 2005-10-04 Koninklijke Philips Electronics N.V. Method and apparatus for echo cancellation in digital ATV systems using an echo cancellation reference signal
US6806915B2 (en) * 2001-05-03 2004-10-19 Koninklijke Philips Electronics N.V. Method and apparatus for echo cancellation in digital communications using an echo cancellation reference signal
GB0116493D0 (en) * 2001-07-06 2001-08-29 Koninkl Philips Electronics Nv Receiver having an adaptive filter and method of optimising the filter
SE0103531D0 (sv) * 2001-10-23 2001-10-23 Abb Ab Industrial Robot System
SE0103532D0 (sv) * 2001-10-23 2001-10-23 Abb Ab Industrial robot system
KR100541478B1 (ko) * 2002-09-06 2006-01-10 엘지전자 주식회사 휴대폰 음장 제어장치 및 방법
US7265792B2 (en) * 2004-07-01 2007-09-04 Xceive Corporation Television receiver for digital and analog television signals
US7049992B1 (en) * 2004-10-29 2006-05-23 Agilent Technologies, Inc. Sample rate doubling using alternating ADCs
JP5732318B2 (ja) * 2011-05-27 2015-06-10 富士通株式会社 受信装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5481019A (en) * 1977-12-12 1979-06-28 Matsushita Electric Ind Co Ltd Delay signal pick up unit
JPS56100579A (en) * 1980-01-12 1981-08-12 Sony Corp Ghost eliminating device
US4582963A (en) * 1982-07-29 1986-04-15 Rockwell International Corporation Echo cancelling using adaptive bulk delay and filter
US4698680A (en) * 1985-12-24 1987-10-06 Rca Corporation Digital correlation apparatus as for a television deghosting system
US5089892A (en) * 1989-04-13 1992-02-18 Victor Company Of Japan, Ltd. Ghost canceller employing plural reference signals
EP0417861B1 (de) * 1989-09-12 1998-06-10 Koninklijke Philips Electronics N.V. Dynamisch rekonfigurierbarer Signalprozessor und Prozessoranordnung
US5034907A (en) * 1989-09-12 1991-07-23 North American Philips Corporation Dynamically configurable signal processor and processor arrangement
US5099328A (en) * 1989-12-12 1992-03-24 Matsushita Electric Industrial Co., Ltd. Ghost canceller
US5260972A (en) * 1990-03-13 1993-11-09 At&T Bell Laboratories Technique for determining signal dispersion characteristics in communications systems
CA2038460A1 (en) * 1990-03-19 1991-09-20 Hiroyuki Iga Transversal equalizer
US5121211A (en) * 1990-10-09 1992-06-09 North American Philips Corporation System for echo cancellation comprising an improved ghost cancellation reference signal
US5161017A (en) * 1990-04-04 1992-11-03 U.S. Philips Corporation Ghost cancellation circuit
US5119196A (en) * 1990-06-25 1992-06-02 At&T Bell Laboratories Ghost cancellation of analog tv signals
US5179444A (en) * 1990-10-09 1993-01-12 North American Philips Corporation System for echo cancellation comprising an improved ghost cancellation reference signal
US5111298A (en) * 1990-10-09 1992-05-05 North American Philips Corporation Method and apparatus for communication channel identification and signal restoration
US5117291A (en) * 1990-11-30 1992-05-26 At&T Bell Laboratories Technique for adjusting signal dispersion cancellation apparatus in communications systems

Also Published As

Publication number Publication date
JPH05183474A (ja) 1993-07-23
KR920022832A (ko) 1992-12-19
DE69209367T2 (de) 1996-10-02
US5396299A (en) 1995-03-07
EP0516216A3 (en) 1993-07-07
EP0516216B1 (de) 1996-03-27
KR100274282B1 (ko) 2000-12-15
US5278872A (en) 1994-01-11
EP0516216A2 (de) 1992-12-02

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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: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee