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MY103829A - Compatible widescreen tv/extended definition widescreen television system using plural signal transmission channels. - Google Patents

Compatible widescreen tv/extended definition widescreen television system using plural signal transmission channels.

Info

Publication number
MY103829A
MY103829A MYPI89000233A MYPI19890233A MY103829A MY 103829 A MY103829 A MY 103829A MY PI89000233 A MYPI89000233 A MY PI89000233A MY PI19890233 A MYPI19890233 A MY PI19890233A MY 103829 A MY103829 A MY 103829A
Authority
MY
Malaysia
Prior art keywords
signal
mhz
main
widescreen
image
Prior art date
Application number
MYPI89000233A
Inventor
Anthony Isnardi Michael
Raymond Smith Terrence
Selig Fuhrer Jack
Original Assignee
Gen Electric
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
Priority claimed from GB888804720A external-priority patent/GB8804720D0/en
Application filed by Gen Electric filed Critical Gen Electric
Publication of MY103829A publication Critical patent/MY103829A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/26—High-definition television systems involving two-channel transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/30—High-definition television systems with transmission of the extra information by means of quadrature modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Color Television Systems (AREA)

Abstract

A SYSTEM FOR TRANSMITTING AND RECEIVING SIGNALS REPRESENTING A HIGH-DEFINITION TELEVISION (HDTV) IMAGE IS DISCLOSED. THE SIGNALS ARE SENT OVER TWO CONVENTIONAL 6 MHZ NSTC CHANNELS. A FIRST SIGNAL, THE MAIN SIGNAL, IS DEVELOPED BY ENCODING CIRCUITRY (112) FROM HDTV SOURCE SIGNALS TO BE COMPATIBLE WITH EXISTING NSTC RECEIVERS (122) IN THAT IT PRODUCES A DISPLAY ON THOSE RECEIVERS WHICH IS NOT SIGNIFICANTLY DISTORTED. THE MAIN INCLUDES PSYCHO-PHYSICALLY HIDDEN VIDEO INFORMATION WHICH MAY BE USED BY AN EXTENDED DEFINITION RECEIVER (128) TO PRODUCE A WIDESCREEN IMAGE HAVING A HIGHER LEVEL OF DETAIL THAN A CONVENTIONAL VIDEO IMAGE. A SECOND SIGNAL, THE AUXILIARY SIGNAL (AUX), IS DEVELOPED AT THE TRANSMITTER BY DECODING THE MAIN SIGNAL (140) AND SUBTRACTING THE DECODED MAIN SIGNAL FROM THE ORIGINAL HDTV SOURCE SIGNALS. THE AUXILIARY SIGNAL, WHICH INCLUDES FREQUENCY COMPONENTS FROM 0 HZ TO 20 MHZ IS SPLIT INTO THREE BANDS, A (0 HZ-6 MHZ), B (6 MHZ-12 MHZ) AND C (12 MHZ-18MHZ). BANDS B AND C ARE FREQUENCY CONVERTED TO OCCUPY THE 0 HZ-6 MHZ BAND AND ARE TIME DIVISION MULTIPLEXED ON A LINE BY LINE BASIS. THE COMBINED B AND C BANDS ARE THEN TIME DIVISION MULTIPLEXED WITH THE A BAND ON A FRAME BY FRAME BASIS FOR STILL IMAGES. FOR MOVING IMAGES, ONLY THE A BAND IS SENT. THE RECEIVER (136) DECODES THE MAIN SIGNAL, AND, USING A MOTION SIGNAL SENT WITH THE MAIN SIGNAL, DECODES THE AUXILIARY SIGNAL. THE DECODED MAIN AND AUXILIARY SIGNALS ARE COMBINED TO REPRODUCE THE HDTV IMAGE.@@(FIG. 1)
MYPI89000233A 1988-02-29 1989-02-25 Compatible widescreen tv/extended definition widescreen television system using plural signal transmission channels. MY103829A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888804720A GB8804720D0 (en) 1988-02-29 1988-02-29 Compatible widescreen tv
US07/252,340 US4888641A (en) 1988-02-29 1988-10-03 Extended definition widescreen television system using plural signal transmission channels

Publications (1)

Publication Number Publication Date
MY103829A true MY103829A (en) 1993-09-30

Family

ID=26293557

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI89000233A MY103829A (en) 1988-02-29 1989-02-25 Compatible widescreen tv/extended definition widescreen television system using plural signal transmission channels.

Country Status (12)

Country Link
EP (1) EP0408579A1 (en)
JP (1) JPH03505656A (en)
CN (1) CN1015856B (en)
AU (1) AU623382B2 (en)
CA (1) CA1310400C (en)
DK (1) DK205190D0 (en)
ES (1) ES2010626A6 (en)
FI (1) FI86785C (en)
MY (1) MY103829A (en)
NZ (1) NZ228149A (en)
PT (1) PT89853A (en)
WO (1) WO1989008366A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8929152D0 (en) * 1989-12-22 1990-02-28 Gen Electric A digital augmentation system for actv-ii
GB9013217D0 (en) * 1990-06-13 1990-08-01 Indep Broadcasting Authority Evaluation of detail in video images,and applications thereof
WO1992006565A1 (en) * 1990-10-01 1992-04-16 Deutsche Thomson-Brandt Gmbh Television transmission system and decoder for such
USRE42643E1 (en) 1991-03-27 2011-08-23 Panasonic Corporation Communication system
USRE39890E1 (en) 1991-03-27 2007-10-23 Matsushita Electric Industrial Co., Ltd. Communication system
US5600672A (en) 1991-03-27 1997-02-04 Matsushita Electric Industrial Co., Ltd. Communication system
EP0975171B1 (en) * 1991-03-27 2002-03-27 Matsushita Electric Industrial Co., Ltd. Signal transmission system
USRE40241E1 (en) 1991-03-27 2008-04-15 Matsushita Electric Industrial Co., Ltd. Communication system
US5892879A (en) 1992-03-26 1999-04-06 Matsushita Electric Industrial Co., Ltd. Communication system for plural data streams
US6724976B2 (en) 1992-03-26 2004-04-20 Matsushita Electric Industrial Co., Ltd. Communication system
CA2226489C (en) 1992-03-26 2001-07-24 Matsushita Electric Industrial Co., Ltd. Communication system
US5802241A (en) 1992-03-26 1998-09-01 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38513E1 (en) 1992-03-26 2004-05-11 Matsushita Electric Industrial Co., Ltd. Communication system
US6728467B2 (en) 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
US7302007B1 (en) 1992-03-26 2007-11-27 Matsushita Electric Industrial Co., Ltd. Communication system
DK1439679T3 (en) * 1992-09-25 2009-01-26 Panasonic Corp Multiple carrier transmission with variable symbol part and variable protection range
KR100238673B1 (en) * 1997-05-30 2000-01-15 윤종용 Monitor output apparatus of hdtv
JP4197402B2 (en) * 2002-03-15 2008-12-17 株式会社日立製作所 Digital broadcast receiving apparatus and digital broadcast receiving method
CN101800724B (en) * 2009-02-11 2012-10-24 北京泰美世纪科技有限公司 Mobile multimedia broadcast transmission system
CN116385332B (en) * 2021-12-22 2026-01-02 复旦大学 A multi-feature fusion detection method for image splicing and combination tampering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3890743T1 (en) * 1987-09-14 1990-06-07 Gen Electric ARRANGEMENT FOR PROCESSING A WIDE BROADCAST TELEVISION SIGNAL EXTENDED RESOLUTION WITH ALTERNATING SUBSTRATE
CA1309162C (en) * 1987-09-14 1992-10-20 General Electric Company Television signal encoded with auxiliary vertical-temporal information
AU620052B2 (en) * 1987-09-14 1992-02-13 General Electric Company Compatible edtv with non-linear amplitude companding

Also Published As

Publication number Publication date
CN1037625A (en) 1989-11-29
DK205190A (en) 1990-08-27
CA1310400C (en) 1992-11-17
EP0408579A1 (en) 1991-01-23
JPH03505656A (en) 1991-12-05
FI86785B (en) 1992-06-30
FI904159A0 (en) 1990-08-22
FI86785C (en) 1992-10-12
DK205190D0 (en) 1990-08-27
CN1015856B (en) 1992-03-11
PT89853A (en) 1989-10-04
ES2010626A6 (en) 1989-11-16
WO1989008366A1 (en) 1989-09-08
AU3183189A (en) 1989-09-22
AU623382B2 (en) 1992-05-14
NZ228149A (en) 1990-09-26

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