US3922084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled document recording system
Assignee: Terminal Data Corp
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Filing: 1974-01-02
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Granted: 1975-11-25
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Expires: 1994-01-02
Abstract
Abstract A recording system for making photographic microcopies of documents in which control documents interspersed therewith have particular preselected code markings for the control of the transport-photographing system. The control documents give a unique response to specialized illumination directed upon the path of the documents through the system. This response is discerned by sensors and introduced to electronic logic which produces signals for the control of the system in handling and photographing the documents. A ''''clock'''' marking is positioned at an extremity of the control document, and unless a signal from this mark is present the logic will not give an output. A differential comparison may be made to prevent spurious responses.
Inventors
- 👤 John S Burton
- 👤 Ronald L Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:38
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/46; G03B27/465; G03C; G03C5/00; G03C5/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
113 words
A document photography system comprising; a. means to transport (10) and photograph (75) documents (1), b. means to illuminate (2) said documents while being transported, c. control documents (12) having selected marks (6,7,9,11) at selected positions thereon, d. means electrically responsive to illumination (4) returned from said marks, e. control means (77) operatively connected to said means to transport and photograph documents, and f. logic means (72) connected to said means electrically responsive to illumination, and to said control means, to control said means to transport and photograph documents according to commands inherent in said selected marks; said control documents being dimensioned such as to be selectively intermixable with documents to be photographed.
Claim 2
Dependent Claim
113 words
A document photography system comprising; a. means to transport (10) and photograph (75) documents (1), b. means to illuminate (2) said documents while being transported, c. control documents (12) having selected marks (6,7,9,11) at selected positions thereon, d. means electrically responsive to illumination (4) returned from said marks, e. control means (77) operatively connected to said means to transport and photograph documents, and f. logic means (72) connected to said means electrically responsive to illumination, and to said control means, to control said means to transport and photograph documents according to commands inherent in said selected marks; said control documents being dimensioned such as to be selectively intermixable with documents to be photographed.
Claim 3
Dependent Claim
51 words
The document photography system of claim 1, in which; a. one of said selected marks is a clock mark (11) having a selected location on each said control document to influence a specific one (20) of said means electrically responsive to illumination to illumination that is returned from said clock mark.
Claim 4
Dependent Claim
15 words
The document photography system of claim 1, in which; a. said marks are parallel stripes.
Claim 5
Dependent Claim
21 words
The document photography system of claim 1, in which; a. said means to illuminate said documents is an ultra-violet illumination-emitting means.
Claim 6
Dependent Claim
30 words
The document photography system of claim 4, in which; a. said marks are constituted to accept ultra-violet illumination and to emit visible illumination as a consequence of the ultra-violet illumination.
Claim 7
Dependent Claim
29 words
The document photography system of claim 1, in which; a. said means electrically responsive to illumination is responsive significantly only in the yellow-orange portion of the visible light spectrum.
Claim 8
Dependent Claim
38 words
The document photography system of claim 2, in which; a. said logic means (72) connected to said means electrically responsive to illumination is constituted to remain inactive unless a said clock mark is present upon said control document.
Claim 9
Dependent Claim
23 words
The document photography system of claim 2, in which; a. said clock mark (11) is at the top of each said control document.
Claim 10
Dependent Claim
94 words
The document photography system of claim 2, which additionally includes; a. an additional means (21) electrically responsive to illumination returned from the surface of said control document, and b. differential electronic means (22) connected to both that means (20) electrically responsive to illumination returned from said clock mark (11), and also connected to said additional means (21), whereby an output from said differential electronic means (22) is obtained only when there is a significant difference in the illumination returned from said clock mark and said surface, thus signifying the presence of said clock mark.
Claim 11
Dependent Claim
77 words
The document photography system of claim 2, in which said logic means (72) includes; a. a register (29) connEcted to said means electrically responsive to illumination (4) to store the electrical response thereof to illumination from said marks (6,7,9), and b. a decoder (39) connected to said register to convert the pattern of response of said means electrically responsive to illumination (4) to electrical said commands upon separate conductors for the control of said document photography system.
Claim 12
Dependent Claim
23 words
The document photography system of claim 1, in which; a. each of said control documents is larger than the documents to be photographed.
Claim 13
Dependent Claim
23 words
The document photography system of claim 2, in which; a. the larger part of each said control document carries a said clock mark.
Claim 14
Dependent Claim
31 words
The document photography system of claim 11, in which; a. said larger part of each said control document is a greater length than the length of said documents to be photographed.
Claim 15
Dependent Claim
36 words
The document photography system of claim 1, in which; a. said control documents (12) are formed of documents (1) that are also to be photographed, b. by adding marks (11) to said documents to be photographed.
Claim 16
Dependent Claim
18 words
The document photography system of claim 14, in which; a. said marks are formed of invisible fluorescent ink.
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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |