FI105299B - Menetelmä ja laite kommunikaatiokanavan tunnistamiseksi ja signaalin korjaamiseksi - Google Patents

Menetelmä ja laite kommunikaatiokanavan tunnistamiseksi ja signaalin korjaamiseksi Download PDF

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Publication number
FI105299B
FI105299B FI921914A FI921914A FI105299B FI 105299 B FI105299 B FI 105299B FI 921914 A FI921914 A FI 921914A FI 921914 A FI921914 A FI 921914A FI 105299 B FI105299 B FI 105299B
Authority
FI
Finland
Prior art keywords
coefficients
sequence
frequency
signal
state
Prior art date
Application number
FI921914A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI921914A0 (fi
FI921914A (fi
Inventor
David Koo
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of FI921914A0 publication Critical patent/FI921914A0/fi
Publication of FI921914A publication Critical patent/FI921914A/fi
Application granted granted Critical
Publication of FI105299B publication Critical patent/FI105299B/fi

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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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Picture Signal Circuits (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (AREA)
FI921914A 1991-04-30 1992-04-29 Menetelmä ja laite kommunikaatiokanavan tunnistamiseksi ja signaalin korjaamiseksi FI105299B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69373791 1991-04-30
US07/693,737 US5111298A (en) 1990-10-09 1991-04-30 Method and apparatus for communication channel identification and signal restoration

Publications (3)

Publication Number Publication Date
FI921914A0 FI921914A0 (fi) 1992-04-29
FI921914A FI921914A (fi) 1992-10-31
FI105299B true FI105299B (fi) 2000-07-14

Family

ID=24785899

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921914A FI105299B (fi) 1991-04-30 1992-04-29 Menetelmä ja laite kommunikaatiokanavan tunnistamiseksi ja signaalin korjaamiseksi

Country Status (6)

Country Link
US (1) US5111298A (fr)
EP (1) EP0511708B1 (fr)
JP (1) JP3330630B2 (fr)
KR (1) KR100268019B1 (fr)
DE (1) DE69214004T2 (fr)
FI (1) FI105299B (fr)

Families Citing this family (19)

* 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
US5172232A (en) * 1990-10-09 1992-12-15 North American Philips Corporation Method and apparatus for communication channel identification and signal restoration
US5278872A (en) * 1991-05-28 1994-01-11 North American Philips Corporation System and circuit architecture for echo cancellation and a television receiver comprising same
US5361102A (en) * 1991-09-04 1994-11-01 Samsung Electronics Co., Ltd. System to cancel ghosts in NTSC television transmission
US5331416A (en) * 1992-12-02 1994-07-19 Samsung Electronics Co., Ltd. Methods for operating ghost-cancelation circuitry for TV receiver or video recorder
TW231393B (fr) * 1992-12-02 1994-10-01 Samsung Electronics Co Ltd
US5796773A (en) * 1994-03-22 1998-08-18 Trimble Navigation Limited Compensating for multipath errors, ionospheric time delay and noise errors in differential satellite positioning systems
US5630208A (en) * 1994-07-19 1997-05-13 Trimble Navigation Limited Adaptive multipath equalization
US5822324A (en) * 1995-03-16 1998-10-13 Bell Atlantic Network Services, Inc. Simulcasting digital video programs for broadcast and interactive services
US5666365A (en) * 1995-03-16 1997-09-09 Bell Atlantic Network Services, Inc. Simulcast transmission of digital programs to shared antenna receiving systems
US5651010A (en) * 1995-03-16 1997-07-22 Bell Atlantic Network Services, Inc. Simultaneous overlapping broadcasting of digital programs
US5654766A (en) * 1995-06-29 1997-08-05 Philips Electronics North America Corporation Television tuning systems and methods employing use of ghost cancellation and antenna directionality control to produce a ghost-free television signal
KR0176877B1 (ko) * 1995-12-13 1999-05-01 구자홍 영상신호 처리기의 고스트 제거방법
US5761088A (en) * 1995-12-18 1998-06-02 Philips Electronics North America Corporation Method and apparatus for channel identification using incomplete or noisy information
KR0165507B1 (ko) * 1996-01-09 1999-03-20 김광호 기준신호를 이용한 등화방법과 등화기
US6128337A (en) * 1997-05-29 2000-10-03 Trimble Navigation Limited Multipath signal discrimination
US6067122A (en) * 1998-04-23 2000-05-23 Intel Corporation Host-based anti-ghosting of teletext data based on non-oversampled data
US7139336B2 (en) * 2002-04-05 2006-11-21 Nokia Corporation Method and system for channel estimation using iterative estimation and detection
EP3293547B1 (fr) * 2016-09-13 2023-07-05 Centre National d'Etudes Spatiales Atténuation de trajets multiples sur la abse de spectre d'un signal de radiocommunication à spectre étalé

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8701332A (nl) * 1987-06-09 1989-01-02 Philips Nv Systeem voor transmissie van datasignalen met gebruikmaking van beslissingsteruggekoppelde egalisatie.
JP2534737B2 (ja) * 1987-11-24 1996-09-18 日本電気ホームエレクトロニクス株式会社 ゴ―スト除去用フィルタ回路
US4864403A (en) * 1988-02-08 1989-09-05 Rca Licensing Corporation Adaptive television ghost cancellation system including filter circuitry with non-integer sample delay
JP2614633B2 (ja) * 1988-03-11 1997-05-28 日本電気ホームエレクトロニクス株式会社 ゴースト除去装置
US4912557A (en) * 1988-05-16 1990-03-27 Faroudja Y C Control method for television ghost reduction system
US4980767A (en) * 1989-11-30 1990-12-25 At&T Bell Laboratories Technique for determining signal dispersion characteristics in communications systems
US5047859A (en) * 1990-10-09 1991-09-10 North American Philips Corporation Method and apparatus for communication channel identification and signal restoration

Also Published As

Publication number Publication date
US5111298A (en) 1992-05-05
DE69214004T2 (de) 1997-03-27
EP0511708B1 (fr) 1996-09-25
DE69214004D1 (de) 1996-10-31
JP3330630B2 (ja) 2002-09-30
KR920020927A (ko) 1992-11-21
KR100268019B1 (ko) 2000-10-16
FI921914A0 (fi) 1992-04-29
EP0511708A2 (fr) 1992-11-04
FI921914A (fi) 1992-10-31
EP0511708A3 (en) 1993-07-07
JPH05130459A (ja) 1993-05-25

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Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

HC Name/ company changed in application

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.