US5442406A
Expired / Lapsed
US
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Wide screen television
Assignee: Technicolor USA Inc
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Filing: 1991-05-29
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Granted: 1995-08-15
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Expires: 2011-05-29
Abstract
Abstract A video display has a first format display ratio. A mapping circuit maps an adjustable picture display are on the video display. A signal processor generates first and second video signals from input video signals having one of different format display ratios. A switching circuit selectively couples video signal sources as the input video signals. The signal processor can manipulate data from the input video signals by selective interpolation and cropping. A synchronizing circuit synchronizes the first and second signal processors with the mapping circuit. A selecting circuit selects as an output video signal between one of the first and second processed video signals and a combination of the first and second processed video signals. A control circuit controls the mapping circuit, the first and second signal processors and the selecting circuit to adjust in format display ratio and image aspect ratio each picture represented in the output video signal. One of the different format display ratios of the input video signals can be the same as the first format display ratio of the video display. The mapping circuit can comprise a raster generating circuit for a cathode ray tube or an address matrix generator for a liquid crystal display.
Inventors
- 👤 Robert D. Altmanshofer
- 👤 Enrique Rodriguez-Cavazos
- 👤 Donald H. Willis
- 👤 Nathaniel H. Ersoz
- 👤 Barth A. Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122; H04N3/00; H04N3/10; H04N3/16; H04N3/22; H04N3/223; H04N3/27; H04N5/00; H04N5/44; H04N5/445; H04N5/45; H04N7/007; H04N7/0105; H04N9/00; H04N9/64; H04N9/641; Y; Y10; Y10S; Y10S348/00; Y10S348/913
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
211 words
A display system, comprising: display means having a first format display ratio; means for mapping an output video signal onto said display means, said output video signal representing a picture which is dimensionally adjustable on said display means by operation of said mapping means; a plurality of video signals, each of said video signals having one of different format display ratios; means for processing at least two of said plurality of video signals, as necessary, to be compatible with one another and with said display means; switching means for coupling first and second ones of said video signals as inputs to said processing means; means for selecting, as said output video signal, between: one of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a single picture display; and, a combination of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a multiple picture display; and, means for controlling said mapping means, said processing means and said selecting means, to adjust each picture represented in said output video signal in format display ratio and image aspect ratio, during both said single and multiple picture displays.
Claim 2
Dependent Claim
211 words
A display system, comprising: display means having a first format display ratio; means for mapping an output video signal onto said display means, said output video signal representing a picture which is dimensionally adjustable on said display means by operation of said mapping means; a plurality of video signals, each of said video signals having one of different format display ratios; means for processing at least two of said plurality of video signals, as necessary, to be compatible with one another and with said display means; switching means for coupling first and second ones of said video signals as inputs to said processing means; means for selecting, as said output video signal, between: one of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a single picture display; and, a combination of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a multiple picture display; and, means for controlling said mapping means, said processing means and said selecting means, to adjust each picture represented in said output video signal in format display ratio and image aspect ratio, during both said single and multiple picture displays.
Claim 3
Dependent Claim
18 words
The display system of claim 1, wherein said first format display ratio is a wide format display ratio.
Claim 4
Dependent Claim
24 words
The display system of claim 1, wherein one of said plurality of video signals has said first format display ratio of said display means.
Claim 5
Dependent Claim
18 words
The display system of claim 3, wherein said first format display ratio is a wide format display ratio.
Claim 6
Dependent Claim
30 words
The display system of claim 1, wherein one of said plurality of video signals has a format display ratio different from said first format display ratio of said display means.
Claim 7
Dependent Claim
18 words
The display system of claim 5, wherein said first format display ratio is a wide format display ratio.
Claim 8
Dependent Claim
30 words
The display system of claim 1, wherein two of said plurality of video signals have a format display ratio different from said first format display ratio of said display means.
Claim 9
Dependent Claim
18 words
The display system of claim 7, wherein said first format display ratio is a wide format display ratio.
Claim 10
Dependent Claim
49 words
The display system of claim 1, wherein one of said plurality of video signals has said first format display ratio of said display means and another one of said plurality of video signals has a format display ratio different from said first format display ratio of said display means.
Claim 11
Dependent Claim
18 words
The display system of claim 9, wherein said first format display ratio is a wide format display ratio.
Claim 12
Dependent Claim
33 words
The display system of claim 1, wherein said processing means comprises means for selectively cropping and means for selectively interpolating each of said first and second ones of said plurality of video signals.
Claim 13
Dependent Claim
21 words
The display system of claim 1, wherein said mapping means comprises means for generating a raster for a cathode ray tube.
Claim 14
Dependent Claim
22 words
The display system of claim 1, wherein said mapping means comprises means for generating an address matrix for a liquid crystal display.
Claim 15
Dependent Claim
51 words
The display system of claim 1, wherein said picture represented by said output video signal is independently adjustable in size in mutually perpendicular directions, said mapping means providing picture size adjustment in one of said directions and said processing means providing picture size adjustment in said other one of said directions.
Claim 16
Dependent Claim
59 words
The display system of claim 1, wherein said picture represented by said output video signal is independently adjustable in size in horizontal and vertical directions, said mapping means providing picture size adjustment in said vertical direction by controlling vertical deflection height and said processing means providing picture size adjustment in said horizontal direction by interpolation of video data samples.
Claim 17
Dependent Claim
83 words
The display system of claim 1, wherein said mapping means and said video display means are adapted for operation with noninterlaced video signals having a horizontal scanning rate of nf H , where f H is a conventional horizontal scanning rate and n is an integer, and further comprising means for converting video signals having an interlaced format and a horizontal scanning rate of f H to video signals having a noninterlaced video format and said horizontal scanning rate of nf H .
Claim 18
Dependent Claim
40 words
The display system of claim 1, further comprising second selecting means for selecting between said output video signal and an another input video signal which is coupled to said mapping means along a signal path which bypasses said processing means.
Claim 19
Dependent Claim
284 words
A display system, comprising: display means having a generally wide format display ratio; means for mapping an output video signal onto said display means, said output video signal representing a picture which is dimensionally adjustable on said display means by operation of said mapping means; a plurality of video signals, each of said video signals having either a generally conventional format display ratio or said generally wide format display ratio of said display means; first and second video processors, each including means for cropping and interpolating video signals, for respectively manipulating at least two of said plurality of video signals, as necessary; switching means for coupling first and second ones of said video signals as inputs to said video processors; means for selecting, as said output video signal, between: one of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a single picture display; and, a combination of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a multiple picture display; and, means for controlling said mapping means, said first and second video processors and said selecting means, to adjust each picture represented in said output video signal in format display ratio and image aspect ratio as necessary to selectively implement a plurality of multiple picture display formats on said video display means, some of said plurality of display formats being representative of various ones of said video signals having format display ratios which are different from one another and at least one of which is different from said first format display ratio of said video display means.
Claim 20
Dependent Claim
284 words
A display system, comprising: display means having a generally wide format display ratio; means for mapping an output video signal onto said display means, said output video signal representing a picture which is dimensionally adjustable on said display means by operation of said mapping means; a plurality of video signals, each of said video signals having either a generally conventional format display ratio or said generally wide format display ratio of said display means; first and second video processors, each including means for cropping and interpolating video signals, for respectively manipulating at least two of said plurality of video signals, as necessary; switching means for coupling first and second ones of said video signals as inputs to said video processors; means for selecting, as said output video signal, between: one of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a single picture display; and, a combination of said first and second ones of said video signals as processed, such that said picture represented by said output video signal is a multiple picture display; and, means for controlling said mapping means, said first and second video processors and said selecting means, to adjust each picture represented in said output video signal in format display ratio and image aspect ratio as necessary to selectively implement a plurality of multiple picture display formats on said video display means, some of said plurality of display formats being representative of various ones of said video signals having format display ratios which are different from one another and at least one of which is different from said first format display ratio of said video display means.
Claim 21
Dependent Claim
24 words
The display system of claim 18, wherein each picture in each of said plurality of display formats is substantially without image aspect ratio distortion.
Claim 22
Dependent Claim
50 words
The display system of claim 18, wherein said plurality of display formats comprises: a wide format display ratio main picture and an overlaid auxiliary picture having a conventional format display ratio; and, a conventional format display ratio main picture and an overlaid auxiliary picture having a wide format display ratio.
Claim 23
Dependent Claim
24 words
The display system of claim 20, wherein each picture in each of said plurality of display formats is substantially without image aspect ratio distortion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-14 | 1999-02-13 | 1999-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-14 | 2003-02-13 | 2003-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-14 | 2007-02-13 | 2007-08-15 | $7700.00 | Window Closed / Lapsed |