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Patent US4862263A successfully refreshed from Google Patents.
US4862263A
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Arrangement for optimized weighting of transmitted transformation coefficients in transforamtion coders for the purpose of minnimizing convolution distortions
Assignee: Siemens AG
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Filing: 1987-09-30
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Granted: 1989-08-29
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Expires: 2007-09-30
Abstract
Abstract An arrangement for optimized weighting of transmitted transformation coefficients in transformation coders for the purpose of minimizing convolution distortions in the transformation coding of image signals for the purpose of a data reduction and/or for the purpose of achieving a prescribed channel rate, has weighting circuitry whereby coefficients to be transmitted are additionally subjected to a weighting or windowing; and the selection of suitable weighting factors which effect a minimization of the convolution distortions in the reconstructed image is executed, dependent on the plurality of coefficients to be transmitted.
Inventors
- 👤 Peter Strobach
- 👤 Herbert Hoelzlwimmer
- 👤 Walter Tengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:42
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/102; H04N19/124; H04N19/126; H04N19/60; H04N19/61; H04N19/619
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A method for optimized weighting of transmitted transformation coefficients in a transformation coder, for the purpose of minimizing distorting of transform coefficients in the transform coding of image signals, for the purpose of a reduction in the transmission rate for such coefficients, including the steps of windowing the coefficients to be transmitted, and selecting the weighting factors which effect a minimization of the convolution distortions in the reconstructed image in accordance with the coefficients to be transmitted.
Claim 2
Independent Claim
77 words
A method for optimized weighting of transmitted transformation coefficients in a transformation coder, for the purpose of minimizing distorting of transform coefficients in the transform coding of image signals, for the purpose of a reduction in the transmission rate for such coefficients, including the steps of windowing the coefficients to be transmitted, and selecting the weighting factors which effect a minimization of the convolution distortions in the reconstructed image in accordance with the coefficients to be transmitted.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |