Patent US4453814A successfully refreshed from Google Patents.
US4453814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for recording data on film of a camera
Assignee: Canon Inc
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Filing: 1981-12-10
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Granted: 1984-06-12
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Expires: 2001-12-10
Abstract
Abstract In the disclosed camera, a data recording device detecting arrangement is set for detecting the spectrographic characteristics of image light at a data recording position on a film and a data recording light emitting arrangement is set for recording the data with a color whose spectrographic characteristics are different from that of the detected color.
Inventors
- 👤 Toshihiko Satoh
- 👤 Toshikazu Ichiyanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:47
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
A data recording device for a camera which forms an image on an image plane comprising: (a) a plurality of data light sources for emitting color lights differing from each other so as to record data figures on a predetermined portion of the image plane; (b) detecting means for detecting the spectrographic characteristics of the image formed at the predetermined portion of the image plane; and selecting means for causing the data light sources selectively to emit light on the basis of the detected spectrographic characteristics.
Claim 2
Dependent Claim
86 words
A data recording device for a camera which forms an image on an image plane comprising: (a) a plurality of data light sources for emitting color lights differing from each other so as to record data figures on a predetermined portion of the image plane; (b) detecting means for detecting the spectrographic characteristics of the image formed at the predetermined portion of the image plane; and selecting means for causing the data light sources selectively to emit light on the basis of the detected spectrographic characteristics.
Claim 3
Dependent Claim
39 words
A device in accordance with claim 1, wherein the detecting means includes a plurality of filters, each of a different color, and a plurality of light sensing elements each for sensing the light passing through one of the filters.
Claim 4
Dependent Claim
56 words
A device in accordance with claim 1, wherein the data light source includes three light emitting diodes emitting red, blue and green lights, while the detecting means includes a light sensing element for sensing the red light, a light sensing element for sensing the blue light and a light sensing element for sensing the green light.
Claim 5
Dependent Claim
30 words
A device in accordance with claim 3, wherein the detecting means includes comparators each responsive to a light sensing element for causing the light emitting diodes to emit light selectively.
Claim 6
Dependent Claim
83 words
A data recording device for a camera that forms images comprising: (a) a data holder for holding data figures; (b) three light emitting bodies of different colors for illuminating the data on the holder; and (c) detecting means for detecting the color of a predetermined portion of an image formed so as to produce a signal; and selecting means responsive to the detecting means for causing the light emitting bodies selectiely to emit light in accordance with the output of the detecting means.
Claim 7
Dependent Claim
83 words
A data recording device for a camera that forms images comprising: (a) a data holder for holding data figures; (b) three light emitting bodies of different colors for illuminating the data on the holder; and (c) detecting means for detecting the color of a predetermined portion of an image formed so as to produce a signal; and selecting means responsive to the detecting means for causing the light emitting bodies selectiely to emit light in accordance with the output of the detecting means.
Claim 8
Independent Claim
29 words
A device as in claims 1,2, 3, or 4, wherein said selecting means is arranged selectively to cause the light sources to emit light different from the spectrographic characteristics.
Claim 9
Dependent Claim
34 words
A device as in claim 5, wherein said selecting means is arranged to select for operation those of the bodies which emit colors different from the color of a predetermined portion of the image.
Claim 10
Dependent Claim
25 words
A device as in claim 6, wherein said selecting means is arranged to prevent the light sources from emitting light corresponding to the spectrographic characteristics.
Claim 11
Dependent Claim
35 words
A device as in claim 7, wherein said selecting means is arranged to prevent the body which normally emits a color corresponding to the color of the predetermined portion of the image from emitting light.
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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |