US3866207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for displaying image informations
Assignee: RIKEN
•
Filing: 1972-11-24
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Granted: 1975-02-11
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Expires: 1992-11-24
Abstract
Abstract Disclosed is an apparatus for displaying image informations using a storage tube as a memory device. According to this invention ''''writing'''' of informations in the storage tube is performed in the ''''Semi-random Scanning'''' mode in which raster scanning is performed in one of the vertical and horizontal directions whereas random scanning is conducted in the other direction.
Inventors
- 👤 Eiichi Goto
- 👤 Hajime Ohiwa
- 👤 Kansei Iwata
- 👤 Tadao Urano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:32
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/36; G09G5/39; G09G1/00; G09G1/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
Apparatus for displaying image information comprising a memory device to write-in and read-out image information by addressing in terms of two coordinates; a display device utilizing a scanning beam to display image information, said memory device having an image information signal input and image information signal output, said display device having an image information signal input; circuit means coupling the output of said memory device with the input of said display device to accomodate transmission to the display device of signals representing image information read-out from the memory device; addressing means associated with said memory device and operable to effect random access to one coordinate of a given information and sequential access to the other coordinate thereof; and scanning circuit means associated with said display device and operable to effect scanning movement of the display device beam to reproduce an image corresponding to the image information content of said image information signal, said display device scanning circuit means being coupled to said addressing means for synchronized operation therewith.
Claim 2
Dependent Claim
168 words
Apparatus for displaying image information comprising a memory device to write-in and read-out image information by addressing in terms of two coordinates; a display device utilizing a scanning beam to display image information, said memory device having an image information signal input and image information signal output, said display device having an image information signal input; circuit means coupling the output of said memory device with the input of said display device to accomodate transmission to the display device of signals representing image information read-out from the memory device; addressing means associated with said memory device and operable to effect random access to one coordinate of a given information and sequential access to the other coordinate thereof; and scanning circuit means associated with said display device and operable to effect scanning movement of the display device beam to reproduce an image corresponding to the image information content of said image information signal, said display device scanning circuit means being coupled to said addressing means for synchronized operation therewith.
Claim 3
Dependent Claim
50 words
Apparatus according to claim 1 wherein said memory device comprises a storage tube, and said addressing means comprises a scanning circuit which includes a vertical deflection circuit driven by a digital-to-analog converter circuit controlled by a digital counter, and a horizontal deflection circuit driven by a digital counter coupled thereto.
Claim 4
Dependent Claim
32 words
Apparatus according to claim 2 wherein the display device scanning circuit means is coupled to said digital- to-analog converter circuit and coupled to the digital counter that drives said horizontal deflection circuit.
Claim 5
Dependent Claim
22 words
Apparatus according to claim 3 wherein said horizontal deflection circuit is driven by overflow signals supplied by the digital counter coupled thereto.
Claim 6
Dependent Claim
41 words
Apparatus according to claim 3 including circuit means associated with said memory device and operable to selectively control the beam current of the associated scanning beam, and to selectively set the memory device in any of a plurality of operating modes.
Claim 7
Dependent Claim
29 words
Apparatus according to claim 3 wherein the memory device scanning circuit means is operable to effect random scanning in a vertical direction and raster scanning in a horizontal direction.
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |