EP0357281A2
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EP
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High definition TV system
Assignee: Raytheon Co
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Filing: 1989-08-14
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Granted: —
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Expires: 2009-08-14
Abstract
Abstract A high definition television system is disclosed. The transmitter 10 of the invention compresses image data and transmits the compressed data during the vertical flyback interval of a standard NTSC television signal. The receiver 30 of the invention decompresses the compressed image data and adds the expanded lines of data to normal image data in interlineal fashion. In a specific embodiment, an improvement operator 58 is utilized to expand the data and fill in missing pixels. The output of the improvement operator 58 is stored in a memory 56 which is then scanned in a non-interlaced mode for presentation.
Inventors
- 👤 J. E. Drummond
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N7/08; H04N7/087; H04N11/00; H04N11/24; H04N7/015
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
75 words
A high definition television system comprising: first means for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; second means for transmitting a compressed video signal during said vertical flyback interval; third means for receiving said video signal and said compressed video signal; fourth means for decompressing said compressed video signal; and fifth means for displaying said first video signal and said decompressed video signal.
Claim 2
Dependent Claim
75 words
A high definition television system comprising: first means for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; second means for transmitting a compressed video signal during said vertical flyback interval; third means for receiving said video signal and said compressed video signal; fourth means for decompressing said compressed video signal; and fifth means for displaying said first video signal and said decompressed video signal.
Claim 3
Dependent Claim
32 words
The system of Claim 1 wherein said second means includes laplacian operator means for performing a differentiation operation on said first and said decompressed video signals to provide said compressed video signal.
Claim 4
Dependent Claim
18 words
The system of Claim 1 wherein said fourth means includes means for implementing a Poisson picture processing algorithm.
Claim 5
Dependent Claim
113 words
A high definition television system comprising: first means for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; second means for transmitting a compressed video signal during said vertical flyback interval, said second means including laplacian operator means for performing a differentiation operation on said first and said decompressed video signals to provide said compressed video signal; third means for receiving said video signal and said compressed video signal; fourth means for decompressing said compressed video signal, said fourth means including means for implementing a Poisson picture processing algorithm; and fifth means for displaying said first video signal and said decompressed video signal.
Claim 6
Dependent Claim
113 words
A high definition television system comprising: first means for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; second means for transmitting a compressed video signal during said vertical flyback interval, said second means including laplacian operator means for performing a differentiation operation on said first and said decompressed video signals to provide said compressed video signal; third means for receiving said video signal and said compressed video signal; fourth means for decompressing said compressed video signal, said fourth means including means for implementing a Poisson picture processing algorithm; and fifth means for displaying said first video signal and said decompressed video signal.
Claim 7
Independent Claim
74 words
A method for providing high definition television transmission and reception including the steps of: a) transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; b) transmitting a compressed video signal during said vertical flyback interval; c) receiving said video signal and said compressed video signal; d) decompressing said compressed video signal; and e) for displaying said first video signal and said decompressed video signal.
Claim 8
Independent Claim
74 words
A method for providing high definition television transmission and reception including the steps of: a) transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; b) transmitting a compressed video signal during said vertical flyback interval; c) receiving said video signal and said compressed video signal; d) decompressing said compressed video signal; and e) for displaying said first video signal and said decompressed video signal.
Claim 9
Dependent Claim
46 words
The method of Claim 5 wherein said step of transmitting a compressed video signal during said vertical flyback interval includes the step of performing a differentiation and thresholding operations on both said first and a second video signal to provide compression of said second video signal.
Claim 10
Dependent Claim
29 words
The method of Claim 5 wherein said step of decompressing said compressed video signal includes the step of processing said compressed video signal using a Poisson picture processing algorithm.
Claim 11
Independent Claim
103 words
A method for providing high definition television transmission and reception including the steps of: a) for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; b) for transmitting a compressed video signal during said vertical flyback interval, said step including the step of performing a differentiation operation on a second video signal to provide said compressed video signal; c) for receiving said video signal and said compressed video signal; d) decompressing said compressed video signal utilizing a Poisson picture processing algorithm; and e) displaying said first video signal and said decompressed video signal.
Claim 12
Independent Claim
103 words
A method for providing high definition television transmission and reception including the steps of: a) for transmitting a periodic vertical synchronization signal and a first video signal, said vertical synchronization signal having a flyback interval; b) for transmitting a compressed video signal during said vertical flyback interval, said step including the step of performing a differentiation operation on a second video signal to provide said compressed video signal; c) for receiving said video signal and said compressed video signal; d) decompressing said compressed video signal utilizing a Poisson picture processing algorithm; and e) displaying said first video signal and said decompressed video signal.
Claim 13
Dependent Claim
21 words
The method of Claim 5 including the step of providing a digital word representing each pixel of said first video signal.
Claim 14
Dependent Claim
30 words
The method of claim 9 including the step of using the lower two bits of every three pixels of said first video signal to provide data for an extra pixel.
References Cited (Backward Citations)
No citation records indexed.
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