US3675232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video generator for data display
Assignee: General Electric Co
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Filing: 1969-05-21
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Granted: 1972-07-04
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Expires: 1989-05-21
Abstract
Abstract Video generator circuitry is disclosed for converting randomly occurring input data information into a time-sequential digital video display output signal. The circuits include a video image buffer of relatively small storage capacity which converts random video signals into a sequential video output signal suitable for displaying the data (such as numerals, letters, vectors, pictures, or special characters) on a scanned-raster cathode-ray tube or other display device. The aforesaid random video signals are produced by means including video pattern generators and a data buffer having a thread address means for sorting the randomly provided input data into proper groupings for writing information into the video image buffer.
Inventors
- 👤 Frederick D Strout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
226 words
A video generator cIrcuit for converting randomly occurring input signals into a time-sequential video signal for use with a sequentially line scanned display device, wherein the improvement comprises, in combination, a video image buffer having a utilized storage capacity less than that required for storing a complete video display image, input means connected to said video image buffer storage and adapted for writing therein video signals which represent information to be displayed on a number of scanned lines of said display device following the line currently being scanned, output means connected to said video image buffer storage and adapted for reading out therefrom the video information stored therein representing said line currently being scanned, and sorting means for organizing the information stored in said video image buffer into a plurality of storage bins each associated with a number of successive scanning lines of said display device, said output means being adapted to sequentially read out the video information for the successive scanning lines of the first of said bins, said input means being adapted to write random video information into the remaining storage bins, and means for causing said organization of bins to shift upon completion of read-out of said first bin whereby the next successive bin becomes the first bin and is read out and whereby the original first bin becomes the last write bin.
Claim 2
Dependent Claim
226 words
A video generator cIrcuit for converting randomly occurring input signals into a time-sequential video signal for use with a sequentially line scanned display device, wherein the improvement comprises, in combination, a video image buffer having a utilized storage capacity less than that required for storing a complete video display image, input means connected to said video image buffer storage and adapted for writing therein video signals which represent information to be displayed on a number of scanned lines of said display device following the line currently being scanned, output means connected to said video image buffer storage and adapted for reading out therefrom the video information stored therein representing said line currently being scanned, and sorting means for organizing the information stored in said video image buffer into a plurality of storage bins each associated with a number of successive scanning lines of said display device, said output means being adapted to sequentially read out the video information for the successive scanning lines of the first of said bins, said input means being adapted to write random video information into the remaining storage bins, and means for causing said organization of bins to shift upon completion of read-out of said first bin whereby the next successive bin becomes the first bin and is read out and whereby the original first bin becomes the last write bin.
Claim 3
Dependent Claim
24 words
A circuit as claimed in claim 1, in which each of said storage bins is associated with a same given number of scanning lines.
Claim 4
Dependent Claim
78 words
A circuit as claimed in claim 1, including a stored library of signals representing predetermined video patterns extending over a number of scanning lines, said input means being adapted to write said predetermined video pattern signals into said write bins of the video image buffer storage, the number of scanning lines represented by said write bins being equal to at least one and a half the maximum number of scanning lines over which said predetermined video patterns extend.
Claim 5
Dependent Claim
19 words
A circuit as claimed in claim 4, in which said bins comprise three write bins and one read bin.
Claim 6
Dependent Claim
52 words
A circuit as claimed in claim 1, including a vector generator for generating video signals representing graphical lines of given length and direction in accordance with said input signals, said input means being adapted to write said video signals representing graphical lines into said write bins of the video image buffer storage.
Claim 7
Dependent Claim
45 words
A circuit as claimed in claim 1, in which said sorting means comprises a data buffer connected with said input means and comprising storage means and thread address means for sorting random input data into said bins for writing into said video image buffer storage.
Claim 8
Dependent Claim
47 words
A circuit as claimed in claim 6, including a character generator provided with a stored library of character signals and connected to receive the output signals of said data buffer, and means connecting the output of said character generator to the input of said video image buffer.
Claim 9
Dependent Claim
60 words
A circuit as claimed in claim 6, including a vector generator for generating video signals representing graphical lines of given length and direction in accordance with said input signals, said vector generator being connected to receive the output signals of said data buffer, and means connecting the output of said vector generator to the input of said video image buffer.
Claim 10
Dependent Claim
224 words
A video generator circuit for converting randomly occurring data signals into a time-sequential video signal for use with a sequentially line scanned display device, wherein the improvement comprises, in combination, a data receiver connected to receive said data signals, a data buffer connected to the output of said data receiver and adapted to sort said data signals into a first plurality of bins each representing a small number of the lines to be scanned on said display device, a video pattern generator connected to the output of said data buffer, a video image buffer connected to the output of said pattern gEnerator and having a utilized storage capacity arranged into a second relatively smaller plurality of bins each representing a number of lines corresponding to the bins of said first plurality, and control circuits connected to said data buffer and video image buffer and operative to cause sequential read-out of a first bin of stored video signals from said video image buffer and writing of video signals outputted from said data buffer into other bins of said video image buffer, said control circuits being further operative upon completion of read-out of said first bin to shift the bin read-write sequence whereby the next successive bin becomes the first bin and is read out and whereby the original first bin becomes the last write bin.
Claim 11
Dependent Claim
224 words
A video generator circuit for converting randomly occurring data signals into a time-sequential video signal for use with a sequentially line scanned display device, wherein the improvement comprises, in combination, a data receiver connected to receive said data signals, a data buffer connected to the output of said data receiver and adapted to sort said data signals into a first plurality of bins each representing a small number of the lines to be scanned on said display device, a video pattern generator connected to the output of said data buffer, a video image buffer connected to the output of said pattern gEnerator and having a utilized storage capacity arranged into a second relatively smaller plurality of bins each representing a number of lines corresponding to the bins of said first plurality, and control circuits connected to said data buffer and video image buffer and operative to cause sequential read-out of a first bin of stored video signals from said video image buffer and writing of video signals outputted from said data buffer into other bins of said video image buffer, said control circuits being further operative upon completion of read-out of said first bin to shift the bin read-write sequence whereby the next successive bin becomes the first bin and is read out and whereby the original first bin becomes the last write bin.
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |