US5488431A
Expired / Lapsed
US
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Video data formatter for a multi-channel digital television system without overlap
Assignee: Texas Instruments Inc
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Filing: 1995-03-20
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Granted: 1996-01-30
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Expires: 2015-03-20
Abstract
Abstract A digital television system (10) System (10) may receive a video signal at composite video interface and separation circuit (16). The video signal is separated into component form by composite video interface and separation circuit (16). The component video signals are converted to digital component video signals in analog to digital converter circuit (18). Line slicer (14) divides each line of digital component video signal into a plurality of channels such that each channel may be processed in parallel by channel signal processors (22a) through (22d). Each channel signal processor (22a) through (22d) may provide two lines of output for each line of video input. The processed digital component video signals may be formatted for displays (26a) through (26c) in formatters (24a) through (24c). Each formatter (24a) through (24c) may comprise a plurality of first in-first out buffer memories (34a) through (34j). One of each channel signal processors (22a ) through (22d) may be coupled to two of first in-first out buffer memories (34a) through (34j). Additionally, each formatter (24a) through (24c) may comprise channel data format units (38a) through (38d), each associated with a channel of, for example, display (24a). Channel data format units (38a) through (38d) are coupled to appropriate of first in-first out buffer memories (34a) through (34j) via multiplexers (36a) through (36d). Each formatter (24a) through (24c) may remove overlap between channels of system (10) and may format the processed video signal into appropriate channels for displays (26a) through (26c).
Inventors
- 👤 Robert J. Gove
- 👤 Donald B. Doherty
- 👤 Scott D. Heimbuch
- 👤 Paul M. Urbanus
- 👤 Stephen W. Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:20
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N9/00; H04N9/64; H04N9/68; H04N9/69; H04N19/00; H04N19/42; H04N19/423; H04N19/436; H04N19/60; H04N19/61; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N21/42607; H04N21/4263; H04N21/42638; H04N21/43; H04N21/44; H04N21/4402; H04N3/00; H04N3/02; H04N3/08; H04N5/00; H04N5/14; H04N5/144; H04N5/74; H04N5/7416; H04N5/7458; H04N7/01; H04N7/0117; H04N7/012; H04N7/0135; H04N9/12; H04N9/31; H04N9/3141; H04N9/3147; H04N9/642; H04N9/643; H04N9/67; H04N19/30; H04N2005/7466
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
104 words
A video data formatter for a video system having a plurality of processing channels, comprising: a line segment mapper responsive to the plurality of processing channels and operable to remove pixels from adjacent processing channels that are common to both channels, such that data for said common pixels is not repeated when said data is displayed, said line segment mapper further operable to divide each of said processing channels into two or more segments; and a data format unit responsive to said line segment mapper and operable to coupled said segment so as to create at least one stream of video data for display.
Claim 2
Dependent Claim
104 words
A video data formatter for a video system having a plurality of processing channels, comprising: a line segment mapper responsive to the plurality of processing channels and operable to remove pixels from adjacent processing channels that are common to both channels, such that data for said common pixels is not repeated when said data is displayed, said line segment mapper further operable to divide each of said processing channels into two or more segments; and a data format unit responsive to said line segment mapper and operable to coupled said segment so as to create at least one stream of video data for display.
Claim 3
Dependent Claim
18 words
The video data formatter of claim 1, wherein said line segment mapper comprises a plurality of buffer memories.
Claim 4
Dependent Claim
21 words
The video data formatter of claim 1, wherein said line segment mapper comprises a plurality of first in-first out buffer memories.
Claim 5
Dependent Claim
20 words
The video data formatter of claim 1, wherein said line segment mapper comprises two buffer memories for each processing channel.
Claim 6
Dependent Claim
23 words
The video data formatter of claim 1, wherein said line segment mapper comprises two first in-first out buffer memories for each processing channel.
Claim 7
Dependent Claim
63 words
The video data formatter of claim 1, wherein said data format unit comprises: a plurality of multiplexers operable to output the segments of the processing channels; and a plurality of channel data format units responsive to said multiplexers and operable to store video data such that said stored video data of each channel data format unit corresponds to a channel of the display.
Claim 8
Dependent Claim
45 words
The video data formatter of claim 1, wherein said data format unit comprises: a multiplexer operable to output the segments of the processing channels; and a digital to analog converter responsive to said multiplexer and operable to provide an analog output to an analog display.
Claim 9
Dependent Claim
29 words
The video data formatter of claim 1, wherein said data format unit comprises a multiplexer operable to output the segments of the processing channels for a liquid crystal display.
Claim 10
Dependent Claim
35 words
The video data formatter of claim 1, wherein said data format unit comprises two additional inputs responsive to a centering signal and operable to center the video data from the processing channels on the display.
Claim 11
Dependent Claim
103 words
A video data formatter for use in a digital television system having a plurality of processing channels, comprising: a plurality of buffer memories responsive to the processing channels and operable to remove pixels from adjacent processing channels that are common to both channels, such that data for said common pixels is not repeated when said data is displayed, said plurality of buffer memories further operable to divide each channel into two or more segments; and a data format unit response to said line segment mapper and operable to couple said segments so as to create at least one stream of data for display.
Claim 12
Dependent Claim
103 words
A video data formatter for use in a digital television system having a plurality of processing channels, comprising: a plurality of buffer memories responsive to the processing channels and operable to remove pixels from adjacent processing channels that are common to both channels, such that data for said common pixels is not repeated when said data is displayed, said plurality of buffer memories further operable to divide each channel into two or more segments; and a data format unit response to said line segment mapper and operable to couple said segments so as to create at least one stream of data for display.
Claim 13
Dependent Claim
22 words
The video data formatter of claim 10, wherein said plurality of buffer memories comprises a plurality of first in-first out buffer memories.
Claim 14
Dependent Claim
21 words
The video data formatter of claim 10, wherein said plurality of buffer memories comprises two buffer memories for each processing channel.
Claim 15
Dependent Claim
24 words
The video data formatter of claim 10, wherein said plurality of buffer memories comprises two first in-first out buffer memories for each processing channel.
Claim 16
Dependent Claim
64 words
The video data formatter of claim 10, wherein said data format unit comprises: a plurality of multiplexers operable to output the segments of the processing channels; and a plurality of channel data format units responsive to said multiplexers and operable to store video data such that said stored video data of each said channel data format unit corresponds to a channel of the display.
Claim 17
Dependent Claim
45 words
The video data formatter of claim 10, wherein said data format unit comprises: a multiplexer operable to output the segments of the processing channels; and a digital to analog converter responsive to said multiplexer and operable to provide an analog output to an analog display.
Claim 18
Dependent Claim
29 words
The video data formatter of claim 10, wherein said data format unit comprises a multiplexer operable to output the segments of the processing channels for a liquid crystal display.
Claim 19
Dependent Claim
35 words
The video data formatter of claim 10, wherein said data format unit comprises two additional inputs responsive to a centering signal and operable to center the video data from the processing channels on the display.
Claim 20
Independent Claim
110 words
A method for formatting video data, comprising the step of: processing video data in a plurality of parallel channels, each channel having a predetermined width in pixels and having a predetermined pixel overlap with an adjacent channels; storing the processed video data in a first plurality of buffer memories such that the overlapping pixels are removed, such that data for said overlapping pixels is not repeated when said data is displayed; and multiplexing the stored video data into a second plurality of buffer memories to reformat the plurality of buffered memories to reformat the plurality of channels to provide at least one steam of output video data to a display.
Claim 21
Independent Claim
110 words
A method for formatting video data, comprising the step of: processing video data in a plurality of parallel channels, each channel having a predetermined width in pixels and having a predetermined pixel overlap with an adjacent channels; storing the processed video data in a first plurality of buffer memories such that the overlapping pixels are removed, such that data for said overlapping pixels is not repeated when said data is displayed; and multiplexing the stored video data into a second plurality of buffer memories to reformat the plurality of buffered memories to reformat the plurality of channels to provide at least one steam of output video data to a display.
Claim 22
Dependent Claim
32 words
The method of claim 18, wherein the step of storing the processed video data further comprises the step of storing the processed data in a plurality of first in-first out buffer memories.
Claim 23
Dependent Claim
52 words
The method of claim 18, wherein the step of storing the processed video data further comprises the step of storing the processed data in a plurality of first in-first out buffer memories having two buffer memories associated with each processing channel such that each processing channel may be separated into two parts.
Claim 24
Dependent Claim
34 words
The method of claim 18, wherein the step of multiplexing the stored video data further comprises the step of combining portions of adjacent channels to produce a plurality of channels of a digital display.
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) | 1999-01-29 | 1999-07-31 | 2000-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-29 | 2003-07-31 | 2004-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-29 | 2007-07-31 | 2008-01-30 | $7700.00 | Window Closed / Lapsed |