US4716462A
Expired / Lapsed
US
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Motion adaptive television signal processing system
Assignee: RCA Licensing Corp
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Filing: 1986-11-25
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Granted: 1987-12-29
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Expires: 2006-11-25
Abstract
Abstract A motion adaptive television signal processing system is disclosed. An image change estimator estimates the image change over an image time interval. A television signal processor adaptively processes the signal in response to a control signal. A control signal generator is coupled between the image change estimator and the adaptive television signal processor. The control signal generated exhibits a function substantially described by: K=Ae-b/x where K is the value of the control signal, A is the maximum value the control signal can attain, x is the estimated image change, and b is a constant. In a second embodiment, a second estimator estimates a parameter of the television signal. The relationship of the control signal to the estimated image change is varied as a function of the estimated parameter.
Inventors
- 👤 Robert A. Wargo
- 👤 Leopold A. Harwood
- 👤 Dalton H. Pritchard
- 👤 Michael S. Chartier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:26
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/144; H04N7/00; H04N7/01; H04N7/0117; H04N7/012; H04N9/00; H04N9/77; H04N9/78
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
97 words
A television signal processing system, comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan time interval; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, coupled between said estimator and said adaptive processor, for generating said control signal exhibiting a function substantially described by: K=Ae.sup.-b/x where K is the value of said control signal, A is the maximum value said control signal can attain, x is said estimated change, and b is a constant.
Claim 2
Dependent Claim
97 words
A television signal processing system, comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan time interval; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, coupled between said estimator and said adaptive processor, for generating said control signal exhibiting a function substantially described by: K=Ae.sup.-b/x where K is the value of said control signal, A is the maximum value said control signal can attain, x is said estimated change, and b is a constant.
Claim 3
Dependent Claim
7 words
The system of claim 1, wherein b=0.924.
Claim 4
Dependent Claim
15 words
The system of claim 1, wherein said control signal generator comprises a read only memory.
Claim 5
Dependent Claim
113 words
A television signal processing system, comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan-time interval; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, coupled between said estimator and said adaptive processor, for generating said control signal exhibiting a function substantially described by: K=K.sub.f for x less than a predetermined value, and K=Ae.sup.-b/x otherwise, where K is the value of said control signal, A is the maximum value said control signal can attain, x is said estimated change, and b is a constantand K f is a predetermined minimum value.
Claim 6
Dependent Claim
113 words
A television signal processing system, comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan-time interval; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, coupled between said estimator and said adaptive processor, for generating said control signal exhibiting a function substantially described by: K=K.sub.f for x less than a predetermined value, and K=Ae.sup.-b/x otherwise, where K is the value of said control signal, A is the maximum value said control signal can attain, x is said estimated change, and b is a constantand K f is a predetermined minimum value.
Claim 7
Dependent Claim
7 words
The system of claim 4, wherein b=0.924.
Claim 8
Dependent Claim
15 words
The system of claim 4, wherein said control signal generator comprises a read only memory.
Claim 9
Dependent Claim
119 words
A television signal processing system comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan time interval; means, coupled to said source, for estimating a parameter of said television signal; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, having respective input terminals coupled to said image change and said parameter estimators, and having an output terminal coupled to said adaptive processor, for generating said control signal having a minimum value for relatively small estimated changes, approaching a maximum value assymptotically for relatively large estimated changes, and exhibiting a monotonically decreasing slope for intermediate control signal values.
Claim 10
Dependent Claim
119 words
A television signal processing system comprising: a source of a television signal; means, coupled to said source, for estimating image changes over at least one image scan time interval; means, coupled to said source, for estimating a parameter of said television signal; means, coupled to said source, for adaptively processing said television signal in response to a control signal; and means, having respective input terminals coupled to said image change and said parameter estimators, and having an output terminal coupled to said adaptive processor, for generating said control signal having a minimum value for relatively small estimated changes, approaching a maximum value assymptotically for relatively large estimated changes, and exhibiting a monotonically decreasing slope for intermediate control signal values.
Claim 11
Dependent Claim
25 words
The system of claim 7, wherein the relationship of said control signal to said estimated image changes varies as a function of said estimated parameter.
Claim 12
Dependent Claim
15 words
The system of claim 7, wherein said control signal generator comprises a read only memory.
Claim 13
Dependent Claim
56 words
The system of claim 7, wherein said control signal generator exhibits a function described by: K=K.sub.f for x less than a predetermined value, and K=Ae.sup.-b/x otherwise, where K is the value of said control signal, A is said maximum value, x is said estimated change, b is a constant, and K f is said minimum value.
Claim 14
Dependent Claim
16 words
The system of claim 10, wherein K f varies as a function of said estimated parameter.
Claim 15
Dependent Claim
7 words
The system of claim 10, wherein b=0.924.
Claim 16
Dependent Claim
165 words
A television signal processing system, comprising: a source of a television signal representing successive scans of a image, each scan comprising a plurality of lines; means, coupled to said source, for estimating image changes over at least one image scan time interval; first processing means, coupled to said source, responsive to a plurality of signals representing respective lines within a first scan of said image; second processing means, coupled to said source, responsive to a signal representing a line in a scan of said image other than said first scan; means, having respective input terminals coupled to said first and second processing means, for combining the signals at said input terminals in proportion based on a control signal; and means, coupled between said estimator and said combining means for generating said control signal having a minimum value for relatively small estimated image changes, approaching a maximum value assymptotically for relatively large estimated image changes, and exhibiting a monotonically decreasing slope for intermediate control signal values.
Claim 17
Dependent Claim
165 words
A television signal processing system, comprising: a source of a television signal representing successive scans of a image, each scan comprising a plurality of lines; means, coupled to said source, for estimating image changes over at least one image scan time interval; first processing means, coupled to said source, responsive to a plurality of signals representing respective lines within a first scan of said image; second processing means, coupled to said source, responsive to a signal representing a line in a scan of said image other than said first scan; means, having respective input terminals coupled to said first and second processing means, for combining the signals at said input terminals in proportion based on a control signal; and means, coupled between said estimator and said combining means for generating said control signal having a minimum value for relatively small estimated image changes, approaching a maximum value assymptotically for relatively large estimated image changes, and exhibiting a monotonically decreasing slope for intermediate control signal values.
Claim 18
Dependent Claim
15 words
The system of claim 13, wherein said control signal generator comprises a read only memory.
Claim 19
Dependent Claim
40 words
The system of claim 13, wherein said control signal generator exhibits a function described by: K=Ae.sup.-b/x where K is the value of said control signal, A is said maximum value, x is said estimated change, and b is a constant.
Claim 20
Dependent Claim
7 words
The system of claim 15, wherein b=0.924.
Claim 21
Dependent Claim
56 words
The system of claim 13, wherein said control signal generator exhibits a function described by: K=K.sub.f for x less than a predetermined value, and K=Ae.sup.-b/x otherwise, where K is the value of said control signal, A is said maximum value, x is said estimated change, b is a constant, and K f is said minimum value.
Claim 22
Dependent Claim
7 words
The system of claim 17, wherein b=0.924.
References Cited (Backward Citations)
GB1515551A
Cited
US4530004A
Cited
GB2127250A
Cited
JPS6057793A
Cited
US4636862A
Cited
US4598309A
Cited
US4617589A
Cited
US4651211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
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