US4448513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image information recording apparatus
Assignee: Canon Inc
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Filing: 1980-11-19
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Granted: 1984-05-15
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Expires: 2000-11-19
Abstract
Abstract An image information recording apparatus, in which a light beam is modulated by an information signal to effect recording on a recording medium, includes a light beam forming device, a modulator for modulating the light beam from the light beam forming device in accordance with an image-information signal, an image-forming lens system for focussing the light beam from the modulator upon the recording medium, devices for sensitizing the recording medium, a scanning system for causing the modulated light beam to scan over the recording medium, and a system for overlaying the image information and other image information with respect to the recording medium.
Inventors
- 👤 Kazuhiro Hirayama
- 👤 Yasushi Sato
- 👤 Noritaka Mochizuki
- 👤 Katsumi Masaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:52
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/207; H04N1/00127; H04N1/00249; H04N1/00254; H04N1/387; H04N1/3871
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
An image information recording apparatus, comprising: means for reading an image carried on an image carrying member and for generating a first electric signal representing the image, said reading and first signal generating means including means for projecting light to the image carrying member in an elongate projection area extending across the image carrying member, means for moving the light projected by said projecting means in a direction substantially perpendicular to the length of the elongate projection area, and photoelectric transducer means for receiving the projected light from the image carrying member to generate a first electric signal representative of the image; means for combining the first electric signal with a second electric signal representing information to be recorded, which is different from the image of said image carrying member, to form a third electric signal; means for generating a laser beam modulated in accordance with the third electric signal; and means for scanning a recording medium with the laser beam.
Claim 2
Dependent Claim
161 words
An image information recording apparatus, comprising: means for reading an image carried on an image carrying member and for generating a first electric signal representing the image, said reading and first signal generating means including means for projecting light to the image carrying member in an elongate projection area extending across the image carrying member, means for moving the light projected by said projecting means in a direction substantially perpendicular to the length of the elongate projection area, and photoelectric transducer means for receiving the projected light from the image carrying member to generate a first electric signal representative of the image; means for combining the first electric signal with a second electric signal representing information to be recorded, which is different from the image of said image carrying member, to form a third electric signal; means for generating a laser beam modulated in accordance with the third electric signal; and means for scanning a recording medium with the laser beam.
Claim 3
Dependent Claim
40 words
An apparatus according to claim 1, wherein said reading and first signal generating means includes means for generating a binary signal corresponding to the signal generated by said photoelectric transducer means, the binary signal thereby constituting the first electric signal.
Claim 4
Dependent Claim
53 words
An apparatus according to claim 1, wherein said reading and first signal generating means includes means for generating a binary signal which corresponds to the signal generated by said photoelectric transducer means and which has a level different from that of the second electric signal, the binary signal being the first electric signal.
Claim 5
Dependent Claim
43 words
An apparatus according to claim 1, wherein said reading and first signal generating means includes means for converting the signal generated by said photoelectric transducer means to a binary signal, and means for inverting the binary signal to form the first electric signal.
Claim 6
Dependent Claim
15 words
An apparatus according to claim 1, wherein said first electric signal is an analog signal.
Claim 7
Dependent Claim
180 words
An image information recording apparatus, comprising: a movable electrophotographic photosensitive member; means for scanning an image of an image carrying member in one direction and in a direction substantially perpendicular to said one direction to generate a first electric signal representing the image, said scanning and first signal generating means including means for projecting light to the image carrying member in a projection area elongated in said one direction and a photoelectric transducer means for receiving the projected light from the image carrying member to generate an electric signal, wherein said image carrying member moves in the direction substantially perpendicular to said one direction; means for combining said first electric signal with a second electric signal representing information to be recorded, which is different from the image of said image carrying member, to form a third signal; means for generating a laser beam modulated in accordance with the third electric signal; deflecting means for deflecting the laser beam; means for rotating said deflecting means at a constant speed; and means for focusing the laser beam onto the electrophotographic photosensitive member.
Claim 8
Dependent Claim
180 words
An image information recording apparatus, comprising: a movable electrophotographic photosensitive member; means for scanning an image of an image carrying member in one direction and in a direction substantially perpendicular to said one direction to generate a first electric signal representing the image, said scanning and first signal generating means including means for projecting light to the image carrying member in a projection area elongated in said one direction and a photoelectric transducer means for receiving the projected light from the image carrying member to generate an electric signal, wherein said image carrying member moves in the direction substantially perpendicular to said one direction; means for combining said first electric signal with a second electric signal representing information to be recorded, which is different from the image of said image carrying member, to form a third signal; means for generating a laser beam modulated in accordance with the third electric signal; deflecting means for deflecting the laser beam; means for rotating said deflecting means at a constant speed; and means for focusing the laser beam onto the electrophotographic photosensitive member.
Claim 9
Dependent Claim
39 words
An apparatus according to claim 6, wherein said scanning and first signal generating means includes means for generating a binary signal corresponding to the signal generated by said photoelectric transducer means, the binary signal thereby constituting first electric signal.
Claim 10
Dependent Claim
53 words
An apparatus according to claim 6, wherein said scanning and first signal generating means includes means for generating a binary signal which corresponds to the signal generated by said photoelectric transducer means and which has a level different from that of the second electric signal, the binary signal being the first electric signal.
Claim 11
Dependent Claim
43 words
An apparatus according to claim 6, wherein said scanning and first signal generating means includes means for converting the signal generated by said photoelectric transducer means to a binary signal, and means for inverting the binary signal to generate the first electric signal.
Claim 12
Dependent Claim
15 words
An apparatus according to claim 6, wherein said first electric signal is an analog signal.
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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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |