US3567856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern generator apparatus
Assignee: NEC Corp
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Filing: 1969-02-18
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Granted: 1971-03-02
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Expires: 1989-02-18
Abstract
Abstract Pattern generator apparatus is provided according to the present invention wherein image pickup means relying upon electron beam scanning is utilized to accomplish the translation of digital information into characteristic and symbolic information. In addition, prescanning of the target face of the image pickup means is relied upon prior to the read scanning thereof so that any residual image present thereon due to a preceding generation sequence in the area of the said target face to be read scanned may be erased. However, as such prescanning is restricted solely to the area of the target face which is to be read scanned, a high speed mode of generation is maintained. According to one embodiment of the present invention, the pattern generator apparatus includes a plurality of pattern carrying films and a plurality of associated flash tubes positioned in light communication with the target face of image pickup means having an electron beam scan, the plurality of associated flash tubes are adapted to be energized on a time division basis by digital signals applied thereto and said electron beam is adapted for prescanning and thereafter read scanning a predetermined portion of the target face of said image pickup tube in response to digital signals applied to the control means therefor.
Inventors
- 👤 Koji Nezu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:38
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
369 words
Pattern generator apparatus for producing video signals representative of predetermined characters and symbols in response to digital information applied thereto, said pattern generator apparatus comprising: image pickup means for converting optical images formed on a target face thereof into said video signals, said image pickup means relying upon the scanning of said target face by an electron beam to convert said optical images into said video signals, said image pickup means including means for controlling the deflection and scanning of said electron beam; a plurality of pattern carrying means having each of said characters and symbols to be displayed represented therein; a plurality of flash tube means, each of said plurality of flash tube means being associated with one of said plurality of pattern carrying means, each of said plurality of flash tube means together with its associated one of said plurality pattern carrying means being positioned in light communication with said target face of said image pickup means whereby upon the energization of one of said flash tube means a real image of the characters and symbols present on its associated pattern carrying means will be formed on said target face; first gating means adapted to energize a selected one of said plurality of flash tube means; second gating meaNs adapted to receive said video signals from said image pickup means, said gating means being connected at an output terminal thereof to output means for said pattern generator apparatus; and means responsive to said digital information to produce first and second control signals in a timed relationship, said first control signal being applied to said means for controlling the deflection and scanning of said electron beam, said first control signal being adapted to cause said electron beam to twice scan a predetermined portion of said target face of said image pickup means, said second control signal being applied as an enabling signal to said first and second gating means, said timed relationship between said first and second control signals being such that said first and second gate means are enabled at the termination of a first scan of said predetermined portion of said target face by said electron beam and at the initiation of the second scan thereof.
Claim 2
Dependent Claim
369 words
Pattern generator apparatus for producing video signals representative of predetermined characters and symbols in response to digital information applied thereto, said pattern generator apparatus comprising: image pickup means for converting optical images formed on a target face thereof into said video signals, said image pickup means relying upon the scanning of said target face by an electron beam to convert said optical images into said video signals, said image pickup means including means for controlling the deflection and scanning of said electron beam; a plurality of pattern carrying means having each of said characters and symbols to be displayed represented therein; a plurality of flash tube means, each of said plurality of flash tube means being associated with one of said plurality of pattern carrying means, each of said plurality of flash tube means together with its associated one of said plurality pattern carrying means being positioned in light communication with said target face of said image pickup means whereby upon the energization of one of said flash tube means a real image of the characters and symbols present on its associated pattern carrying means will be formed on said target face; first gating means adapted to energize a selected one of said plurality of flash tube means; second gating meaNs adapted to receive said video signals from said image pickup means, said gating means being connected at an output terminal thereof to output means for said pattern generator apparatus; and means responsive to said digital information to produce first and second control signals in a timed relationship, said first control signal being applied to said means for controlling the deflection and scanning of said electron beam, said first control signal being adapted to cause said electron beam to twice scan a predetermined portion of said target face of said image pickup means, said second control signal being applied as an enabling signal to said first and second gating means, said timed relationship between said first and second control signals being such that said first and second gate means are enabled at the termination of a first scan of said predetermined portion of said target face by said electron beam and at the initiation of the second scan thereof.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1 wherein said predetermined portion of said target face which is twice scanned constitutes an area on said target face occupied by the real image of one of the character and symbol images formed thereon.
Claim 4
Dependent Claim
38 words
The apparatus of claim 2 wherein said means responsive to said digital information includes means operably connected to said first gating means for varying the select one of said plurality of flash tube means adapted to be energized.
Claim 5
Dependent Claim
55 words
The apparatus of claim 3 wherein said digital information comprises a plurality of parallel binary signals and said means operably connected to said first gating means for varying the select one of said plurality of flash tube means adapted to be energized is responsive to only a portion of said plurality of parallel binary signals.
Claim 6
Dependent Claim
35 words
The apparatus of claim 4 wherein the remainder of said plurality of parallel binary signals includes deflection information determinative of the location of said predetermined portion on said target face of said image pickup means.
Claim 7
Dependent Claim
33 words
The apparatus of claim 5 wherein said first control signal comprises a component indicative of said predetermined portion and a component regulating the manner in which said predetermined portion is to be scanned.
Claim 8
Dependent Claim
56 words
The apparatus of claim 6 additionally comprising digital-to-analogue converter means operably connected to said means for varying the select one of said plurality of flash tube means, said digital-to-analogue converter means adapted to receive therefrom said remainder of said plurality of parallel binary signals and in response thereto generate said component indicative of said predetermined portion.
Claim 9
Dependent Claim
39 words
The apparatus of claim 7 additionally comprising sawtooth generator means responsive to the receipt of the digital information by said pattern generator apparatus to generate said component regulating the manner in which said predetermined portion is to be scanned.
Claim 10
Dependent Claim
35 words
The apparatus according to claim 8 wherein said first gating means includes a plurality of pulse generator means, one of said plurality of pulse generator means being connected to each of said flash tube means.
Claim 11
Dependent Claim
104 words
The apparatus of claim 9 wherein each of said plurality of pulse generator means includes first and second inputs thereto, each of said plurality of pulse generator means requiring the application of input pulses to each of said inputs thereof prior to energizing the flash tube means connected thereto; means for supplying said second control signal to each of said second inputs of said plurality of pulse generator means; and means for connecting each of said first inputs of said plurality of pulse generator means to a different output of said means for varying the select one of said plurality of flash tube means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |