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Patent US4496946A successfully refreshed from Google Patents.
US4496946A
Expired / Lapsed
US
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Programmable electronic display
Assignee: PERATRON Corp A CORP OF NEW YORK
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Filing: 1982-09-28
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Granted: 1985-01-29
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Expires: 2002-09-28
Abstract
Abstract An electronic display is disclosed herein having a large display medium divided into a plurality of sections arranged in a multiplicity of rows. Each section includes illuminating devices of three different colors. An image source provides cinematographic data in the form of electronic signals derived from energization of photocells in response to a light source passing through a moving film strip containing a series of color images. A master clock provides timing pulses through a row and line selection circuit which applies the cinematographic data signals to selected rows and illuminating devices in the sections thereof so that a duplicate image of the film is displayed on the screen.
Inventors
- 👤 Eugene R. Pera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:26
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N1/00; H04N1/46; H04N1/48; H04N1/486
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
225 words
An electronic display system, comprising: a color display panel with relatively large horizontal and vertical dimensions forming a large display area, said panel including a plurality of discrete sections of color illuminating means arranged in rows and columns, each said section including illuminating means for a plurality of colors; an image signal source comprising means for feeding a film strip carrying a series of color images to be displayed on said display panel, a plurality of light source means for illuminating said film strip in a corresponding plurality of different colors, each of said differently colored light sources being directed through a common aperture onto said film strip, a plurality of photosensing means each responsive to a color generated by a corresponding light source, each of said photosensing means comprising a line of photosensors equal in number to the number of sections in one column on said display panel, each photosensor in a line being responsive to the same color, said plurality of photosensing means generating input signals representing the light from said light sources as modified by a portion of one of said film strip color images exposed to said light; means for scanning said input signals, and control means for applying the input signals to selected ones of said illuminating means sections, whereby said film strip images are duplicated on said display panel.
Claim 2
Dependent Claim
225 words
An electronic display system, comprising: a color display panel with relatively large horizontal and vertical dimensions forming a large display area, said panel including a plurality of discrete sections of color illuminating means arranged in rows and columns, each said section including illuminating means for a plurality of colors; an image signal source comprising means for feeding a film strip carrying a series of color images to be displayed on said display panel, a plurality of light source means for illuminating said film strip in a corresponding plurality of different colors, each of said differently colored light sources being directed through a common aperture onto said film strip, a plurality of photosensing means each responsive to a color generated by a corresponding light source, each of said photosensing means comprising a line of photosensors equal in number to the number of sections in one column on said display panel, each photosensor in a line being responsive to the same color, said plurality of photosensing means generating input signals representing the light from said light sources as modified by a portion of one of said film strip color images exposed to said light; means for scanning said input signals, and control means for applying the input signals to selected ones of said illuminating means sections, whereby said film strip images are duplicated on said display panel.
Claim 3
Dependent Claim
31 words
The invention as defined in claim 1, further comprising an analog-to-digital converter for receiving said input signals and for applying digital data signals to a screen driver driving said illuminating means.
Claim 4
Dependent Claim
20 words
The invention as defined in claim 2, further including priority encoders coupled between said analog-to-digital converter and said screen driver.
Claim 5
Dependent Claim
51 words
The invention as defined in claim 1, further comprising means converting said input signals to digital form and wherein said control means includes electronic circuit means for receiving said signals and processing said signals via a shift register network and a demultiplexer for determining selected light energization at a selected section.
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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) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |