US3859508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of control of legitimacy safe against forgery
Assignee: Dasy Inter SA
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Filing: 1973-05-30
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Granted: 1975-01-07
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Expires: 1993-05-30
Abstract
Abstract The invention relates to a method of control of legitimacy safe against forgery using at least two documents provided with bits of information, one of said documents being a document of identification, such as a check card or the like, the other one being a document releasing a function, such as a check or the like, said documents being commonly presented for releasing the function of the function document whereby said bits of information on each document are combined and verified for legitimacy before releasing the function.
Inventors
- 👤 Jorgen Brosow
- 👤 Erik Furugard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:38
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/347; G07F7/0873; G07F7/12; G07F7/125
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
229 words
A method for the control of legitimacy safe against forgery comprising at least two documents provided with bits of information, one of said documents being a document of identification and another of said documents being a document releasing a function, wherein the character bits of information required for the function of said document releasing a function is divided into two partial bits of information supplementing each other, providing one of said partial bits of information in said document of identification and providing the other of said partial bits of information on said document releasing a function, wherein at least one of said partial bits of information on one of said documents is determined by a mathematical function of the other partial bits of information on one of said documents, said mathematical function being provided on one of said documents, transferring said partial bits of information on said document of identification to said document releasing a function, whereby the document releasing a function contains the complete bits of information required for releasing the function, presenting said document releasing a function to a verifying terminal position, verifying the complete bits of information required for releasing the function of the document releasing a function, being a combination of said two partial bits of information by means of said mathematical function ad releasing the function when said complete bits of information are verified.
Claim 2
Independent Claim
229 words
A method for the control of legitimacy safe against forgery comprising at least two documents provided with bits of information, one of said documents being a document of identification and another of said documents being a document releasing a function, wherein the character bits of information required for the function of said document releasing a function is divided into two partial bits of information supplementing each other, providing one of said partial bits of information in said document of identification and providing the other of said partial bits of information on said document releasing a function, wherein at least one of said partial bits of information on one of said documents is determined by a mathematical function of the other partial bits of information on one of said documents, said mathematical function being provided on one of said documents, transferring said partial bits of information on said document of identification to said document releasing a function, whereby the document releasing a function contains the complete bits of information required for releasing the function, presenting said document releasing a function to a verifying terminal position, verifying the complete bits of information required for releasing the function of the document releasing a function, being a combination of said two partial bits of information by means of said mathematical function ad releasing the function when said complete bits of information are verified.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said mathematical function is provided on said document of identification.
Claim 4
Dependent Claim
41 words
a document releasing a function carrying partial bits of information, wherein one of said partial bits of information is determined by a mathematical functioN of the other partial bits of information, said mathematical function being provided on one of said documents,
Claim 5
Dependent Claim
41 words
a document releasing a function carrying partial bits of information, wherein one of said partial bits of information is determined by a mathematical functioN of the other partial bits of information, said mathematical function being provided on one of said documents,
Claim 6
Dependent Claim
20 words
a means for transferring said partial bits of information on said document of identification to said document releasing a function,
Claim 7
Dependent Claim
20 words
a means for transferring said partial bits of information on said document of identification to said document releasing a function,
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein said mathematical function is comprised in one of said partial bits of information.
Claim 9
Independent Claim
15 words
A system for the control of legitimacy safe against fraud and forgery, said system comprising,
Claim 10
Independent Claim
15 words
A system for the control of legitimacy safe against fraud and forgery, said system comprising,
Claim 11
Dependent Claim
41 words
a means for reading the total information on said doucment releasing a function, which total information is composed of the original partial bits of information on said document and the partial bits of information transferred thereto from said document of identification,
Claim 12
Dependent Claim
41 words
a means for reading the total information on said doucment releasing a function, which total information is composed of the original partial bits of information on said document and the partial bits of information transferred thereto from said document of identification,
Claim 13
Dependent Claim
14 words
verifying means for verifying said total information by means of said mathematic function, and
Claim 14
Dependent Claim
14 words
verifying means for verifying said total information by means of said mathematic function, and
Claim 15
Dependent Claim
31 words
The system of claim 4 wherein said means for transferring said partial bits of information on said document of identification to said document releasing a function is magnetic field transferring means.
Claim 16
Dependent Claim
7 words
means for releasing said function upon verification.
Claim 17
Dependent Claim
7 words
means for releasing said function upon verification.
Claim 18
Dependent Claim
114 words
The system of claim 5 wherein said magnetic field transferring means comprises a grid plate with parallel wires to which said two documents are superposed one on top of the other, said document of identification being remote from said grid plate and consisting of magnetically shielding material being provided with holes corresponding to the partial bits of information are transferred, said document releasing a function being below said document of identification, the magnetic field of a magnet arranged on top of said document of identification reaching said wires through said holes for obtaining a magnetic field concentration on rod-like areas, wherein said partial bits of information are transferred to said document releasing a function.
Claim 19
Dependent Claim
22 words
The system of claim 6 characterized in that said holes are filled with a magnetically non-shielding material and are thus optically invisible.
Claim 20
Dependent Claim
40 words
The system of claim 4 wherein said means for transferring said partial bits of information on said document of identification to said document releasing a function is an isotopic marking of said bits of information on one of said documents.
Claim 21
Dependent Claim
17 words
The system of claim 8 wherein said photosensitive zone is covered by an opaque against light strip.
Claim 22
Dependent Claim
16 words
The system of claim 8 wherein a fluorescent area is provided to adjacent said photosensitive area.
Claim 23
Dependent Claim
68 words
The system of claim 4 wherein said means for reading supplies one of the partial bits of information directly to a memory means and said for reading supplies the rest of the partial bits of information through a function memory means operated by said mathematical function to a second memory means and said verifying means is a circuit means for comparing the contents of the two memory means.
Claim 24
Dependent Claim
17 words
The system of claim 11 further comprising a shift register between said reader and said memory means.
Claim 25
Dependent Claim
42 words
The system of claim 11 characterized in that said function memory means checks the digits of its input information in regard to their usability as said mathematical function under consideration of the result of the comparison of the contents of the memories.
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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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |