US3983571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic image identifying system
Assignee: RCA Corp
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Filing: 1975-06-30
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Granted: 1976-09-28
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Expires: 1995-06-30
Abstract
Abstract Counter with display devices for exhibiting successive identifiers in response to a change in ambient light such as used in reproducing an image. Each change in ambient light, such as the flash in a photocopying machine or flashbulbs in a camera, increments a counter which is coupled to display devices, which are disposed between the image to be reproduced and the image reproducing means, and which display an identifier corresponding to the number in the counter.
Inventors
- 👤 Paul Michael Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:00
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/521; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A image identifying system for use in a light-activated image reproduction apparatus, comprising in combination: light sensing means responsive to a change in ambient light generated by said reproduction apparatus for producing an output signal; counter means responsive to said output signal for incrementing an electrically encoded number; and display means arranged to be disposed between the image to be reproduced and said reproduction apparatus, and responsive to said counter means for producing an identifier corresponding to said encoded number in a manner to be reproduced superimposed on a portion of said image.
Claim 2
Dependent Claim
93 words
A image identifying system for use in a light-activated image reproduction apparatus, comprising in combination: light sensing means responsive to a change in ambient light generated by said reproduction apparatus for producing an output signal; counter means responsive to said output signal for incrementing an electrically encoded number; and display means arranged to be disposed between the image to be reproduced and said reproduction apparatus, and responsive to said counter means for producing an identifier corresponding to said encoded number in a manner to be reproduced superimposed on a portion of said image.
Claim 3
Dependent Claim
33 words
The invention as claimed in claim 1 including: delay means interconnected between said light sensing means and said counter means for inserting a time interval between said output signal and said counter means.
Claim 4
Dependent Claim
13 words
The invention as claimed in claim 2 wherein said time interval is adjustable.
Claim 5
Dependent Claim
16 words
The invention as claimed in claim 1 wherein said display means includes liquid crystal read-out means.
Claim 6
Dependent Claim
15 words
The invention as claimed in claim 1 wherein said display means includes cathodochromic display means.
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) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |