WO1991002431A3 - Transmission d'informations auxiliaires dans un signal de television - Google Patents

Transmission d'informations auxiliaires dans un signal de television

Info

Publication number
WO1991002431A3
WO1991002431A3 PCT/US1990/004078 US9004078W WO9102431A3 WO 1991002431 A3 WO1991002431 A3 WO 1991002431A3 US 9004078 W US9004078 W US 9004078W WO 9102431 A3 WO9102431 A3 WO 9102431A3
Authority
WO
WIPO (PCT)
Prior art keywords
television signal
vestigial sideband
signal
frequency
auxiliary information
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.)
Ceased
Application number
PCT/US1990/004078
Other languages
English (en)
Other versions
WO1991002431A2 (fr
Inventor
Krishnamurthy Jonnalagadda
James John Gibson
Theodor Matthias Wagner
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to KR1019920700319A priority Critical patent/KR100188832B1/ko
Priority to DE69018830T priority patent/DE69018830T2/de
Priority to EP90912271A priority patent/EP0485478B1/fr
Publication of WO1991002431A2 publication Critical patent/WO1991002431A2/fr
Publication of WO1991002431A3 publication Critical patent/WO1991002431A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/28—High-definition television systems involving bandwidth reduction, e.g. subsampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Color Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Amplitude Modulation (AREA)

Abstract

Appareil pour enrichir un signal de télévision d'un signal auxiliaire. Il se compose d'un ensemble de circuits destinés à moduler une porteuse d'images avec un signal vidéo en bande de base afin de produire un signal de télévision en bande latérale résiduelle. Le signal auxiliaire (54) est ensuite modulé sur une nouvelle porteuse (CA) ayant une fréquence telle que les bandes latérales supérieures fp-(2n+1)fH/2 de la nouvelle porteuse ainsi modulée, représentant l'information auxiliaire, 1) occupent le spectre de fréquences de la bande latérale résiduelle du signal de télévision de cette même bande (50), et 2) apparaissent groupées aux multiples impairs de la fréquence de demi-ligne. Les bandes latérales de la nouvelle porteuse modulée sont ajoutées (52) au signal de télévision de la bande latérale résiduelle en fréquences imbriquées dans le domaine spectral de la bande latérale résiduelle.
PCT/US1990/004078 1989-08-11 1990-07-19 Transmission d'informations auxiliaires dans un signal de television Ceased WO1991002431A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019920700319A KR100188832B1 (ko) 1989-08-11 1990-07-19 텔레비젼 신호에 보조정보를 전송하는 장치
DE69018830T DE69018830T2 (de) 1989-08-11 1990-07-19 Übertragung von zusätzlichen informationen in einem fernsehsignal.
EP90912271A EP0485478B1 (fr) 1989-08-11 1990-07-19 Transmission d'informations auxiliaires dans un signal de television

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US392,820 1989-08-11
US07/392,820 US4958230A (en) 1989-08-11 1989-08-11 Method of transmitting auxiliary information in a television signal

Publications (2)

Publication Number Publication Date
WO1991002431A2 WO1991002431A2 (fr) 1991-02-21
WO1991002431A3 true WO1991002431A3 (fr) 1991-04-18

Family

ID=23552119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/004078 Ceased WO1991002431A2 (fr) 1989-08-11 1990-07-19 Transmission d'informations auxiliaires dans un signal de television

Country Status (12)

Country Link
US (1) US4958230A (fr)
EP (1) EP0485478B1 (fr)
JP (1) JP2562234B2 (fr)
KR (1) KR100188832B1 (fr)
CN (1) CN1049586A (fr)
AU (1) AU6165290A (fr)
CA (1) CA2064847A1 (fr)
DD (1) DD295480A5 (fr)
DE (1) DE69018830T2 (fr)
ES (1) ES2071109T3 (fr)
PT (1) PT94951A (fr)
WO (1) WO1991002431A2 (fr)

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Publication number Priority date Publication date Assignee Title
US5125100A (en) * 1990-07-02 1992-06-23 Katznelson Ron D Optimal signal synthesis for distortion cancelling multicarrier systems
DE4028424A1 (de) * 1990-09-07 1992-03-12 Philips Patentverwaltung Schaltungsanordnung zur a/d-umsetzung der farbinformationen zweier bildsignale
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
KR930009880B1 (ko) * 1990-11-19 1993-10-12 삼성전자 주식회사 동신호 검출회로
US5151785A (en) * 1991-06-04 1992-09-29 Zenith Electronics Corporation HDTV transmission system with reduced susceptibility to NTSC cochannel interference
US5617148A (en) * 1991-06-14 1997-04-01 Wavephore, Inc. Filter by-pass for transmitting an additional signal with a video signal
US5559559A (en) * 1991-06-14 1996-09-24 Wavephore, Inc. Transmitting a secondary signal with dynamic injection level control
US5410360A (en) * 1991-06-14 1995-04-25 Wavephore, Inc. Timing control for injecting a burst and data into a video signal
US5387941A (en) * 1991-06-14 1995-02-07 Wavephore, Inc. Data with video transmitter
US5831679A (en) * 1991-06-14 1998-11-03 Wavephore, Inc. Network for retrieval and video transmission of information
US5327237A (en) * 1991-06-14 1994-07-05 Wavephore, Inc. Transmitting data with video
DE4221683A1 (de) * 1992-07-02 1994-01-13 Philips Patentverwaltung Verfahren zur Datenübertragung
US5548617A (en) * 1994-05-19 1996-08-20 Samsung Elctronics, Co., Ltd. Digital VSB detector with bandpass phase tracker using rader filters, as for use in an HDTV receiver
US5574496A (en) * 1995-06-07 1996-11-12 Zenith Electronics Corporation Techniques for minimizing co-channel interference in a received ATV signal
KR100212134B1 (ko) * 1996-05-03 1999-08-02 윤종용 시청자 선택형 자막표시의 소프트 스크롤 방법
US5903231A (en) * 1996-12-16 1999-05-11 Vidicast Ltd. System for encoding base N data using a multi-level coding scheme
US6122010A (en) * 1996-12-16 2000-09-19 Vidicast Ltd. Television signal data transmission system
GB9703143D0 (en) * 1997-02-14 1997-04-02 Vistek Electronics An improved method of luminance and chrominance separation for video signals
US5946048A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network device for handling digital data over a TV channel
US5946047A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network system for handling digital data over a TV channel
US6549242B1 (en) * 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
US5909253A (en) * 1997-12-09 1999-06-01 Sarnoff Corporation Reducing video crosstalk in a data carrier located within a vestigial sideband of a standard television signal
WO1999040721A1 (fr) 1998-02-06 1999-08-12 Zenith Electronics Corporation Codeur bla et modulateur rf pour recepteur de television numerique
US6433835B1 (en) 1998-04-17 2002-08-13 Encamera Sciences Corporation Expanded information capacity for existing communication transmission systems
US6473858B1 (en) 1999-04-16 2002-10-29 Digeo, Inc. Method and apparatus for broadcasting data with access control
US6526580B2 (en) 1999-04-16 2003-02-25 Digeo, Inc. Broadband data broadcasting service
JP2003518839A (ja) * 1999-12-22 2003-06-10 エンカメラ サイエンシィーズ コーポレーション 既存の通信伝送システムのための拡大された情報容量に関する受信器の改良
US7051111B1 (en) 2000-04-25 2006-05-23 Digeo, Inc. Multiple source proxy management system
KR20030002914A (ko) * 2001-07-02 2003-01-09 웹링호스트(주) 변조된 통신신호에 정보를 추가하는 방법과 이를 이용한통신장치
US7180942B2 (en) 2001-12-18 2007-02-20 Dotcast, Inc. Joint adaptive optimization of soft decision device and feedback equalizer
WO2004075469A2 (fr) 2003-02-19 2004-09-02 Dotcast Inc. Commande adaptative commune de l'egalisation, de la synchronisation et du gain dans un recepteur de communication numerique
US7375741B2 (en) * 2005-03-24 2008-05-20 Himax Technologies Limited Circuit and method for eliminating image interfering with desired channel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL164804B (nl) * 1950-07-28 Hoechst Ag Voor de vervaardiging van vlakdrukplaten geschikte drager alsmede vlakdrukplaat bestaande uit een dergelijke drager waarop een lichtgevoelige laag is aangebracht.
US3530232A (en) * 1966-06-17 1970-09-22 Intern Telemeter Corp Subscription television system
US3700793A (en) * 1970-06-09 1972-10-24 Bell Telephone Labor Inc Frequency interleaved video multiplex system
JPS59171387A (ja) * 1983-03-18 1984-09-27 Hitachi Ltd テレビジヨン信号の構成方法
DE3435264A1 (de) * 1984-09-26 1986-04-03 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur kompatiblen aufloesungserhoehung fuer farbfernsehuebertragungssysteme mit reduzierung der uebersprechstoerungen bei bewegungsadaptiver bildverarbeitung
JPS6336692A (ja) * 1986-07-31 1988-02-17 Matsushita Electric Ind Co Ltd テレビジヨン信号合成装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Better Video Images, 23rd Annual SMPTE Television Conference, San Francisco, 3-4 February 1989, SMPTE, (White Plains, New York, US), Yozo Ono: "HDTV and today s broad-casting world", pages 312-360 *
Neues aus der Technik, , no. 1, 16 August 1982, (Würzburg, DE), "Komatibles Fernsehübertragungs verfahren mit erhöhter Auflösung" see page 4 *

Also Published As

Publication number Publication date
DE69018830D1 (de) 1995-05-24
JP2562234B2 (ja) 1996-12-11
DD295480A5 (de) 1991-10-31
EP0485478A1 (fr) 1992-05-20
WO1991002431A2 (fr) 1991-02-21
US4958230A (en) 1990-09-18
ES2071109T3 (es) 1995-06-16
KR920704525A (ko) 1992-12-19
DE69018830T2 (de) 1995-12-07
EP0485478B1 (fr) 1995-04-19
AU6165290A (en) 1991-03-11
JPH04507335A (ja) 1992-12-17
PT94951A (pt) 1991-04-18
CA2064847A1 (fr) 1991-02-12
CN1049586A (zh) 1991-02-27
KR100188832B1 (ko) 1999-06-01

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