Patent US6094227A successfully refreshed from Google Patents.
US6094227A
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Digital image rate converting method and device
Assignee: US Philips Corp
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Filing: 1998-01-27
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Granted: 2000-07-25
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Expires: 2018-01-27
Abstract
Abstract A digital signal converting method and device for converting an input image rate into an output image rate, is applied to input images which are formed by a plurality of input data frames. The method storing the input frames, calculating a sliding average over a plurality of stored frames, and deriving the averages for producing output images with a timing fixed by the output image rate.
Inventors
- 👤 Stephane-Pascal Guimier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:43
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; G; G06; G06F; G06F3/00; G06F3/14; G06F3/153; G09; G09G; G09G2340/00; G09G2340/04; G09G2340/0407; G09G2340/0435; G09G3/00; G09G3/20; G09G3/2007; G09G3/2018; G09G3/2022; G09G3/2025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
132 words
A digital signal converting method for converting a series of input images at an input image rate I into a series of output images at an output image rate O=M*I, where M is an integer greater than one, each input image being formed by a series of a fixed number K of input data frames, where K=P*M, K and P being integers greater than one, said method comprising: storing input data frames either individually or as combinations of C input data frames each, where C is an integer that is less than or equal to P, calculating a sliding average over K stored individual data frames or K/C stored data frame combinations, and successively deriving said averages to produce the output images with a timing fixed by the output image rate O.
Claim 2
Dependent Claim
132 words
A digital signal converting method for converting a series of input images at an input image rate I into a series of output images at an output image rate O=M*I, where M is an integer greater than one, each input image being formed by a series of a fixed number K of input data frames, where K=P*M, K and P being integers greater than one, said method comprising: storing input data frames either individually or as combinations of C input data frames each, where C is an integer that is less than or equal to P, calculating a sliding average over K stored individual data frames or K/C stored data frame combinations, and successively deriving said averages to produce the output images with a timing fixed by the output image rate O.
Claim 3
Dependent Claim
24 words
The method as claimed in claim 1, wherein the calculation of the sliding average is preceded by triggering the calculation of an arithmetical average.
Claim 4
Dependent Claim
25 words
A method as claimed in claim 1, wherein K=16 and the input images have a format that is compatible with a liquid crystal display screen.
Claim 5
Dependent Claim
21 words
A method as claimed in claim 2, wherein M=8 and the series of output images is transmitted to a display monitor.
Claim 6
Dependent Claim
143 words
A digital signal converting device for converting a series of input images at an input image rate I into a series of output images at an output image rate O+M*I, where M is an integer greater than one, each input image being formed by a series of a fixed number K of input data frames, where K=P*M, K and P being integers greater than one, said device comprising: storage means for storing input data frames either individually or as combinations of C input data frames each, where C is an integer that is greater than one and less than or equal to P, a calculation means for calculating a sliding average over K stored frames or K/C stored data frame combinations, and for successively deriving said averages and for producing the output images with a timing fixed by the output image rate O.
Claim 7
Dependent Claim
143 words
A digital signal converting device for converting a series of input images at an input image rate I into a series of output images at an output image rate O+M*I, where M is an integer greater than one, each input image being formed by a series of a fixed number K of input data frames, where K=P*M, K and P being integers greater than one, said device comprising: storage means for storing input data frames either individually or as combinations of C input data frames each, where C is an integer that is greater than one and less than or equal to P, a calculation means for calculating a sliding average over K stored frames or K/C stored data frame combinations, and for successively deriving said averages and for producing the output images with a timing fixed by the output image rate O.
Claim 8
Dependent Claim
24 words
The device as claimed in claim 5, wherein the calculation means further comprises a control device for triggering the calculation of the arithmetical average.
Claim 9
Dependent Claim
29 words
A device as claimed in claim 5, wherein K=16 and the series of input images is produced by the device for generating images on a liquid crystal display screen.
Claim 10
Dependent Claim
21 words
A device as claimed in claim 7, wherein M=8 and the series of output images is transmitted to a display monitor.
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) | 2003-07-25 | 2004-01-24 | 2004-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-25 | 2008-01-24 | 2008-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-25 | 2012-01-24 | 2012-07-25 | $7700.00 | Window Closed / Lapsed |