Patent US5029002A successfully refreshed from Google Patents.
US5029002A
Expired / Lapsed
US
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High definition television system
Assignee: Zenith Electronics LLC
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Filing: 1988-08-31
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Granted: 1991-07-02
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Expires: 2008-08-31
Abstract
Abstract A high definition television system includes an encoder for encoding a video source signal having a horizontal bandwidth of about 28-30 MHz for transmission through a 6 MHz RF channel. The video source signal is provided in the form of a plurality of horizontal video lines occurring at a vertical rate equal to the NTSC field repetition rate and at a predetermined horizontal rate greater than the NTSC horizontal scanning rate. The video lines of the source signal are encoded for transmission at NTSC vertical and horizontal rates, with the lines representing the lower frequencies of the video source signal being transmitted at a higher temporal rate than the lines representing the higher frequencies. The transmitted lines are converted to a plurality of display lines by a receiver for display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the predetermined horizontal rate.
Inventors
- 👤 Richard W. Citta
- 👤 Ronald B. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:47
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/015; H04N11/00; H04N11/24; H04N11/28; H04N19/00; H04N19/10; H04N19/169; H04N19/186; H04N19/60; H04N19/63; H04N7/08; H04N7/087; H04N7/088; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N5/00; H04N5/44; H04N5/60; H04N5/602
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
140 words
A method of transmitting and receiving a non-compatible high definition television signal comprising: providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; deriving a plurality of second horizontal lines of video information from said plurality of first lines and transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a high definition display at preselected vertical and horizontal repetition rates.
Claim 2
Independent Claim
140 words
A method of transmitting and receiving a non-compatible high definition television signal comprising: providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; deriving a plurality of second horizontal lines of video information from said plurality of first lines and transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a high definition display at preselected vertical and horizontal repetition rates.
Claim 3
Dependent Claim
52 words
The method of claim 1 wherein said transmitting step comprises transmitting a portion of said second lines at a first frame refresh rate less tan the NTSC frame refresh rate and transmitting the remaining ones of said second lines at a second frame refresh rate greater than the NTSC frame refresh rate.
Claim 4
Dependent Claim
60 words
The method of claim 2 wherein the video information represented by said portion of said second lines is characterized by levels of horizontal and vertical resolution below respective first and second values and wherein the video information represented by said remaining second lines is characterized by levels of horizontal and vertical resolution greater than said first and second values respectively.
Claim 5
Dependent Claim
51 words
The method of claim 3 wherein said preselected horizontal rate is three times the NTSC horizontal scanning rate, wherein said preselected vertical rate is equal to the NTSC field repetition rate and wherein said first and second frame refresh rates are 1/2 and 5/2 times the NTSC frame refresh rate respectively.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein said first and second values are about 9.2-10.0 MHz and 96 pels/h respectively.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein each of said frames of 787.5 progressively scanned first horizontal lines of video information comprises 720 active lines and 67.5 vertical retract lines.
Claim 8
Dependent Claim
23 words
The method of claim 6 including transmitting said second horizontal lines of video information on respective quadrature components of a selected video carrier.
Claim 9
Dependent Claim
141 words
A high definition television system comprising: means for providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; means for deriving a plurality of second horizontal lines of video information from said plurality of first lines and means for transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a high definition display at preselected vertical and horizontal repetition rates.
Claim 10
Dependent Claim
141 words
A high definition television system comprising: means for providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; means for deriving a plurality of second horizontal lines of video information from said plurality of first lines and means for transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a high definition display at preselected vertical and horizontal repetition rates.
Claim 11
Dependent Claim
29 words
The system of claim 8 wherein each of said frames of 787.5 progressively scanned first horizontal lines of video information comprises 720 active lines and 67.5 vertical retrace lines.
Claim 12
Dependent Claim
29 words
The system of claim 9 wherein said transmitting means comprises means for transmitting said second horizontal lines of video information on respective quadrature components of a selected video carrier.
Claim 13
Dependent Claim
154 words
In a non-compatible high definition television system including a high definition video source signal defined by a plurality of first horizontal lines of video information occurring at a vertical rate equal to the NTSC field repetition rate and at a predetermined horizontal rate greater than the NTSC horizontal scanning rate and means for transmitting a plurality of second horizontal lines of video information representing said video source signal at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate, a receiver comprising: means for receiving said transmitted second lines of video information; and means for converting said received second lines into a plurality of third lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 14
Dependent Claim
154 words
In a non-compatible high definition television system including a high definition video source signal defined by a plurality of first horizontal lines of video information occurring at a vertical rate equal to the NTSC field repetition rate and at a predetermined horizontal rate greater than the NTSC horizontal scanning rate and means for transmitting a plurality of second horizontal lines of video information representing said video source signal at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate, a receiver comprising: means for receiving said transmitted second lines of video information; and means for converting said received second lines into a plurality of third lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 15
Dependent Claim
24 words
The receiver of claim 11 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
Claim 16
Independent Claim
132 words
A method of transmitting and receiving a non-compatible high definition television signal comprising: providing a high definition television signal comprising a plurality of first horizontal lines of video information having selected horizontal and vertical repetition rates; deriving a plurality of second horizontal lines of video information from said plurality of first lines and transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 17
Independent Claim
132 words
A method of transmitting and receiving a non-compatible high definition television signal comprising: providing a high definition television signal comprising a plurality of first horizontal lines of video information having selected horizontal and vertical repetition rates; deriving a plurality of second horizontal lines of video information from said plurality of first lines and transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 18
Dependent Claim
24 words
The method of claim 13 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
Claim 19
Dependent Claim
23 words
The method of claim 14 including transmitting said second horizontal lines of video information on respective quadrature components of a selected video carrier.
Claim 20
Dependent Claim
134 words
A non-compatible high definition television system comprising: means for providing a high definition television signal comprising a plurality of first horizontal lines of video information having selected horizontal and vertical repetition rates; means for deriving a plurality of second horizontal lines of video information from said plurality of first lines and means for transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 21
Dependent Claim
134 words
A non-compatible high definition television system comprising: means for providing a high definition television signal comprising a plurality of first horizontal lines of video information having selected horizontal and vertical repetition rates; means for deriving a plurality of second horizontal lines of video information from said plurality of first lines and means for transmitting said second lines at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of second lines to a plurality of third horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 22
Dependent Claim
24 words
The system of claim 16 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
Claim 23
Dependent Claim
29 words
The system of claim 17 wherein said transmitting means comprises means for transmitting said second horizontal lines of video information on respective quadrature components of a selected video carrier.
Claim 24
Independent Claim
154 words
A method of transmitting and receiving a non-compatible television signal comprising: providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; deriving a plurality of signal components from said plurality of first lines and transmitting said signal components at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of signal components to a plurality of second horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 25
Independent Claim
154 words
A method of transmitting and receiving a non-compatible television signal comprising: providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; deriving a plurality of signal components from said plurality of first lines and transmitting said signal components at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and receiving and converting said plurality of signal components to a plurality of second horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 26
Dependent Claim
19 words
The method of claim 19 including transmitting said signal components on respective quadrature components of a selected video carrier.
Claim 27
Dependent Claim
24 words
The method of claim 19 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
Claim 28
Dependent Claim
29 words
The method of claim 19 wherein each of said frames of 787.5 progressively scanned first horizontal lines of video information comprises 720 active lines and 67.5 vertical retrace lines.
Claim 29
Dependent Claim
20 words
The method of claim 19 wherein said signal components are transmitted at temporal rates having at least two different values.
Claim 30
Dependent Claim
158 words
A non-compatible high definition television system comprising: means for providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; means for deriving a plurality of signal components from said plurality of first lines and means for transmitting said signal components at a vertical rate equal to the NTSC signal repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of signal components to a plurality of second horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 31
Dependent Claim
158 words
A non-compatible high definition television system comprising: means for providing a television signal comprising 787.5 progressively scanned first horizontal lines of video information during each of a plurality of successive frames, said first lines occurring at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate; means for deriving a plurality of signal components from said plurality of first lines and means for transmitting said signal components at a vertical rate equal to the NTSC signal repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate; and means for receiving and converting said plurality of signal components to a plurality of second horizontal lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 32
Dependent Claim
20 words
The system of claim 24 wherein said signal components are transmitted at temporal rates having at least two different values.
Claim 33
Dependent Claim
25 words
The system of claim 24 wherein said transmitting means comprises means for transmitting said signal components on respective quadrature components of a selected video carrier.
Claim 34
Dependent Claim
24 words
The system of claim 24 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
Claim 35
Dependent Claim
29 words
The system of claim 24 wherein each of said frames of 787.5 progressively scanned first horizontal lines of video information comprises 720 active lines and 67.5 vertical retrace lines.
Claim 36
Dependent Claim
147 words
In a non-compatible high definition television system including a high definition video source signal defined by a plurality of first horizontal lines of video information occurring at a vertical rate equal to the NTSC field repetition rate and at a predetermined horizontal rate greater than the NTSC horizontal scanning rate and means for transmitting a plurality of signal components representing said video source signal at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate, a receiver comprising: means for receiving said transmitted signal components; and means for converting said received signal components into a plurality of second lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 37
Dependent Claim
147 words
In a non-compatible high definition television system including a high definition video source signal defined by a plurality of first horizontal lines of video information occurring at a vertical rate equal to the NTSC field repetition rate and at a predetermined horizontal rate greater than the NTSC horizontal scanning rate and means for transmitting a plurality of signal components representing said video source signal at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to the NTSC horizontal scanning rate, a receiver comprising: means for receiving said transmitted signal components; and means for converting said received signal components into a plurality of second lines of video information for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 38
Dependent Claim
78 words
In a non-compatible high definition television system including means for transmitting a high definition television signal at selected horizontal and vertical repetition rates, a receiver comprising: means for receiving said transmitted high definition television signal; and means for processing said received high definition television signal for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 39
Dependent Claim
78 words
In a non-compatible high definition television system including means for transmitting a high definition television signal at selected horizontal and vertical repetition rates, a receiver comprising: means for receiving said transmitted high definition television signal; and means for processing said received high definition television signal for providing a 787.5 line progressively scanned display at a vertical rate equal to the NTSC field repetition rate and at a horizontal rate equal to three times the NTSC horizontal scanning rate.
Claim 40
Dependent Claim
24 words
The receiver of claim 30 wherein each frame of said 787.5 line progressively scanned display comprises 720 active lines and 67.5 vertical retrace lines.
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| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
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