US3745351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for line-by-line photoelectric scanning of data media
Assignee: Individual
•
Filing: 1972-07-03
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Granted: 1973-07-10
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Expires: 1992-07-03
Abstract
Abstract A scanning head photoelectrically scans a data media moving along a path and a timing strip positioned in front of said path and transversely thereto. The timing strip is on a roller which is movable axially as well as rotationally. The timing strip is formed by a film produced by a photographic reproduction of a master, with the film being backed by a reversing reflection stratum. The combination produces a plurality of striations transversely to the roller, with the striations being slightly conical. When scanned by a light beam these produce timing pulses.
Inventors
- 👤 L Pudel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:33
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10831
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
In an apparatus for the line-by-line photoelectric scanning of data media and comprising a first photoelectric receiver, optical means including a reflector wheel which reflects a spot of light onto the media with the light reflected from the media being conducted to the photoelectric receiver to produce information signals, a device forming a timing strip positioned transversely to the media, a second photoelectric receiver, said optical means directing a beam of light via said reflector wheel onto said timing strip with the light reflected from the strip being conducted to the second receiver to produce timing signals, said timing strip being adjustable in said transverse direction and being adjustable in a longitudinal orientation, the improvement wherein said device comprises: a roller, means mounting said roller for rotation and axial movement, covering means on the surface of said roller defining a plurality of striations positioned transversely to said roller.
Claim 2
Dependent Claim
148 words
In an apparatus for the line-by-line photoelectric scanning of data media and comprising a first photoelectric receiver, optical means including a reflector wheel which reflects a spot of light onto the media with the light reflected from the media being conducted to the photoelectric receiver to produce information signals, a device forming a timing strip positioned transversely to the media, a second photoelectric receiver, said optical means directing a beam of light via said reflector wheel onto said timing strip with the light reflected from the strip being conducted to the second receiver to produce timing signals, said timing strip being adjustable in said transverse direction and being adjustable in a longitudinal orientation, the improvement wherein said device comprises: a roller, means mounting said roller for rotation and axial movement, covering means on the surface of said roller defining a plurality of striations positioned transversely to said roller.
Claim 3
Dependent Claim
27 words
In an apparatus as set forth in claim 1, wherein said covering means includes a film and a reversing reflecting stratum between the film and the roller.
Claim 4
Dependent Claim
31 words
In an apparatus as set forth in claim 2, wherein said film comprises a reduced photographic reproduction of a master, said film and said stratum being adhesively affixed to said roller.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |