Patent US5880784A successfully refreshed from Google Patents.
US5880784A
Expired / Lapsed
US
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Method and apparatus for adaptively switching on and off advanced prediction mode in an H.263 video coder
Assignee: Intel Corp
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Filing: 1997-06-17
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Granted: 1999-03-09
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Expires: 2017-06-17
Abstract
Abstract A feedback mechanism for adaptively enabling and disabling an advanced prediction mode for video data processing is disclosed. A quantization parameter (QP) threshold is set and a QP mean for an error frame is determined. The advanced prediction mode is enabled if the QP mean is less than the QP threshold.
Inventors
- 👤 Karl O. Lillevold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:07
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/134; H04N19/154; H04N19/102; H04N19/103; H04N19/105; H04N19/169; H04N19/17; H04N19/172; H04N19/176; H04N19/60; H04N19/61
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
64 words
A method for adaptively activating an advanced prediction mode of a video coder for video data processing comprising the steps of: setting a predetermined quantization parameter (QP) threshold; determining a QP mean of an error frame for a first frame; and activating the advanced prediction mode on the video coder for a second frame if said QP mean is greater than said QP threshold.
Claim 2
Independent Claim
64 words
A method for adaptively activating an advanced prediction mode of a video coder for video data processing comprising the steps of: setting a predetermined quantization parameter (QP) threshold; determining a QP mean of an error frame for a first frame; and activating the advanced prediction mode on the video coder for a second frame if said QP mean is greater than said QP threshold.
Claim 3
Dependent Claim
37 words
The method of claim 1 wherein said step of determining said QP mean further comprises the step of adding QP values for each macroblock for said first frame to produce a QP sum for said first frame.
Claim 4
Dependent Claim
33 words
The method of claim 2 further comprising the step of averaging said QP sum by the total number of macroblocks in said first frame to produce a QP mean for said first frame.
Claim 5
Dependent Claim
28 words
The method of claim 1 wherein said step of activating further comprises the step of comparing said QP mean for said first frame with said predetermined QP threshold.
Claim 6
Independent Claim
97 words
An apparatus for adaptively enabling and disabling an advanced prediction (AP) mode of a video coder for video data processing comprising: a quantization parameter (QP) mean generator for generating a QP mean for a first frame; and an AP comparator coupled to said OP mean generator, said AP comparator for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold, and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold.
Claim 7
Independent Claim
97 words
An apparatus for adaptively enabling and disabling an advanced prediction (AP) mode of a video coder for video data processing comprising: a quantization parameter (QP) mean generator for generating a QP mean for a first frame; and an AP comparator coupled to said OP mean generator, said AP comparator for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold, and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold.
Claim 8
Dependent Claim
46 words
A computer system comprising: a video coder for coding video signals received by the computer system; and an advanced prediction (AP) decision logic coupled to said video coder for determining whether to enable or disable said AP mode in said video coder for a given frame.
Claim 9
Dependent Claim
46 words
A computer system comprising: a video coder for coding video signals received by the computer system; and an advanced prediction (AP) decision logic coupled to said video coder for determining whether to enable or disable said AP mode in said video coder for a given frame.
Claim 10
Dependent Claim
28 words
The computer system of claim 6 wherein said AP decision logic further comprises a quantization parameter (QP) mean generator for generating a QP mean for a first frame.
Claim 11
Dependent Claim
59 words
The computer system of claim 6 further comprising an AP comparator for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold.
Claim 12
Independent Claim
91 words
An apparatus for adaptively enabling and disabling an advanced prediction (AP) mode of a video coder for video data processing comprising: means for generating a QP mean for a first frame; and means for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold, and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold, said means for comparing coupled to said means for generating.
Claim 13
Independent Claim
91 words
An apparatus for adaptively enabling and disabling an advanced prediction (AP) mode of a video coder for video data processing comprising: means for generating a QP mean for a first frame; and means for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold, and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold, said means for comparing coupled to said means for generating.
Claim 14
Dependent Claim
44 words
A computer system comprising: means for coding video signals received by the computer system; and means for determining whether to enable or disable said AP mode in said video coder for a given frame, said means for determining coupled to said means for coding.
Claim 15
Dependent Claim
44 words
A computer system comprising: means for coding video signals received by the computer system; and means for determining whether to enable or disable said AP mode in said video coder for a given frame, said means for determining coupled to said means for coding.
Claim 16
Dependent Claim
23 words
The computer system of claim 10 wherein said means for determining further comprises means for generating a QP mean for a first frame.
Claim 17
Dependent Claim
57 words
The computer system of claim 10 further comprising means for comparing said QP mean with a predetermined QP threshold, said AP mode is turned on if said QP mean is greater than said predetermined QP threshold and said AP mode is turned off if said QP mean is less than or equal to said predetermined QP threshold.
References Cited (Backward Citations)
US5764803A
Cited
US5748789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-08 | 2002-09-07 | 2003-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-08 | 2006-09-07 | 2007-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-08 | 2010-09-07 | 2011-03-09 | $7700.00 | Window Closed / Lapsed |