Patent US3684841A successfully refreshed from Google Patents.
Patent US5072292A successfully refreshed from Google Patents.
US5072292A
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Hd-mac television signal encoding utilizing vector pointer assignment
Assignee: US Philips Corp
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Filing: 1990-06-14
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Granted: 1991-12-10
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Expires: 2010-06-14
Abstract
Abstract In a method of encoding a television signal having a video signal, the method comprising producing an encoded television signal in accordance with a motion-compensated processing of the video signal, determining vectors in a first picture period of two consecutive picture periods of the video signal, and, in a second picture period of the said two consecutive picture periods, determining pointers to the vectors determined in the first picture period, a substitute pointer pointing to a vector which is indeed to be transmitted is searched if a pointer thus determined does not point to a vector to be transmitted, so that a television signal encoding with an improved picture quality can be obtained.
Inventors
- 👤 Philippe A. M. Van Overmeire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:44
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/90; H04N19/98
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A method of encoding a television signal with a video signal, the method comprising the steps of: producing an encoding television signal in accordance with a motion-compensated processing of the video signal; determining vectors in a first picture period of two consecutive picture periods of the video signal; and, in a second picture period of the said two consecutive picture periods, determining pointers to the vectors determined in said first picture period characterized by searching for a substitute pointer to a vector to be transmitted if a pointer thus determined points to a vector not to be transmitted.
Claim 2
Independent Claim
98 words
A method of encoding a television signal with a video signal, the method comprising the steps of: producing an encoding television signal in accordance with a motion-compensated processing of the video signal; determining vectors in a first picture period of two consecutive picture periods of the video signal; and, in a second picture period of the said two consecutive picture periods, determining pointers to the vectors determined in said first picture period characterized by searching for a substitute pointer to a vector to be transmitted if a pointer thus determined points to a vector not to be transmitted.
Claim 3
Dependent Claim
68 words
A method as claimed in claim 1, characterized in that if a substitute vector to which the substitute pointer points and the vector not to be transmitted to which said first pointer points deviate for more than a criterion from each other, in said second picture period a processing of the video signal is selected which has a resolution lower than a resolution associated with said motion-compensated processing.
Claim 4
Dependent Claim
69 words
A method as claimed in claim 2, characterized in that the criterion provides the first substitute vector which minimizes both the amplitude of a difference vector between the substitute vector and the previously determined best vector, as the maximum of x and y-components of the substitute vector, on the condition that the sum of the x and y-components of the difference vector is less than a value of 3.
References Cited (Backward Citations)
US4692806A
Cited
US4965667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |