HK26497A - VSB HDTV transmission system with reduced NTSC co-channel interference - Google Patents

VSB HDTV transmission system with reduced NTSC co-channel interference

Info

Publication number
HK26497A
HK26497A HK26497A HK26497A HK26497A HK 26497 A HK26497 A HK 26497A HK 26497 A HK26497 A HK 26497A HK 26497 A HK26497 A HK 26497A HK 26497 A HK26497 A HK 26497A
Authority
HK
Hong Kong
Prior art keywords
ntsc
reduced
transmission system
channel interference
hdtv transmission
Prior art date
Application number
HK26497A
Other languages
English (en)
Inventor
Richard W Citta
Dennis M Mutzabaugh
Gary J Sgrignoli
Original Assignee
Zenith Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24448197&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK26497(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zenith Electronics Corp filed Critical Zenith Electronics Corp
Publication of HK26497A publication Critical patent/HK26497A/xx

Links

Classifications

    • 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
    • H04N7/0803—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 using frequency interleaving, e.g. with precision offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Color Television Systems (AREA)
  • Picture Signal Circuits (AREA)
HK26497A 1990-11-09 1997-03-06 VSB HDTV transmission system with reduced NTSC co-channel interference HK26497A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/611,236 US5087975A (en) 1990-11-09 1990-11-09 VSB HDTV transmission system with reduced NTSC co-channel interference
PCT/US1991/008277 WO1992009174A1 (en) 1990-11-09 1991-11-07 Vsb hdtv transmission system with reduced ntsc co-channel interference

Publications (1)

Publication Number Publication Date
HK26497A true HK26497A (en) 1997-03-06

Family

ID=24448197

Family Applications (1)

Application Number Title Priority Date Filing Date
HK26497A HK26497A (en) 1990-11-09 1997-03-06 VSB HDTV transmission system with reduced NTSC co-channel interference

Country Status (8)

Country Link
US (2) US5087975A (ko)
EP (1) EP0556306B1 (ko)
JP (1) JP3098028B2 (ko)
KR (1) KR970003479B1 (ko)
CA (1) CA2095435C (ko)
DE (1) DE69121902T2 (ko)
HK (1) HK26497A (ko)
WO (1) WO1992009174A1 (ko)

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Also Published As

Publication number Publication date
DE69121902T2 (de) 1997-02-13
EP0556306B1 (en) 1996-09-04
JP3098028B2 (ja) 2000-10-10
USRE36992E (en) 2000-12-19
DE69121902D1 (de) 1996-10-10
CA2095435C (en) 1999-08-03
US5087975A (en) 1992-02-11
CA2095435A1 (en) 1992-05-10
KR930702863A (ko) 1993-09-09
JPH06501600A (ja) 1994-02-17
EP0556306A1 (en) 1993-08-25
KR970003479B1 (ko) 1997-03-18
WO1992009174A1 (en) 1992-05-29

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20041107

ARF Application filed for restoration

Effective date: 20051021

ARG Restoration of standard patent granted

Effective date: 20060127

PE Patent expired

Effective date: 20111106