US3577203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character recording and recognition system
Assignee: Xerox Corp
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Filing: 1968-04-18
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Granted: 1971-05-04
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Expires: 1988-04-18
Abstract
Abstract A system for automatically reading alphanumeric characters recorded on a document wherein the symbols are shaped so as to be also recognizable by human beings. The apparatus comprises a transport for advancing a document strip past a plurality of stations which include a marking station at which magnetic material is applied as alphanumeric characters in response to discrete signals, a recording station at which flux patterns associated with the characters are impressed in superposed relationship therewith in response to frequency signals, and frequency signals in timed relation to the movement of the document. The magnetic material may have an electrostatic component to enable electrostatic recording or may comprise magnetic particles in solid or liquid form. A detection circuit is provided for reading out the character frequency patterns and supplying this information in signal form to a utility device.
Inventors
- 👤 Kenneth M Beach Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/22; G06V30/224; G06V30/2253
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
166 words
In a system for automatically reading alphanumeric characters wherein the characters are shaped so as to be also recognizable by human beings, the improvement comprising: a web, means for advancing said web along a predetermined path, marking means positioned in the web path for applying magnetic material onto said web as alphanumeric characters readily recognizable by human beings in response to discrete signals, recording means positioned in the web path after said marking means for impressing flux patterns superposed with the magnetic characters, each flux pattern having a frequency associated with a corresponding one of said characters in response to signals, circuit means for supplying discrete signals to said marking means and an alternating current of a predetermined frequency to said recording means in timed relationship to impress a characteristic frequency pattern superposed on each character produced by said marking means, and detection means in the web path for reading out the characteristic frequency patterns and supplying this information in signal form to a utilization means.
Claim 2
Dependent Claim
166 words
In a system for automatically reading alphanumeric characters wherein the characters are shaped so as to be also recognizable by human beings, the improvement comprising: a web, means for advancing said web along a predetermined path, marking means positioned in the web path for applying magnetic material onto said web as alphanumeric characters readily recognizable by human beings in response to discrete signals, recording means positioned in the web path after said marking means for impressing flux patterns superposed with the magnetic characters, each flux pattern having a frequency associated with a corresponding one of said characters in response to signals, circuit means for supplying discrete signals to said marking means and an alternating current of a predetermined frequency to said recording means in timed relationship to impress a characteristic frequency pattern superposed on each character produced by said marking means, and detection means in the web path for reading out the characteristic frequency patterns and supplying this information in signal form to a utilization means.
Claim 3
Dependent Claim
105 words
A process for producing and reading alphanumeric characters recorded on a document which are shaped as to be recognizable by human beings comprising advancing a document strip past a marking station at which magnetic material is applied in the form of alphanumeric characters shaped so as to be recognized by human beings, then encoding at a coding station by superposing different frequency patterns in overlying relation with the characters, each frequency pattern corresponding to a different one of said marked characters, and subsequently sensing the frequency patterns on the basis of frequency alone and supplying the information received as electrical signals to a utilization means.
Claim 4
Dependent Claim
105 words
A process for producing and reading alphanumeric characters recorded on a document which are shaped as to be recognizable by human beings comprising advancing a document strip past a marking station at which magnetic material is applied in the form of alphanumeric characters shaped so as to be recognized by human beings, then encoding at a coding station by superposing different frequency patterns in overlying relation with the characters, each frequency pattern corresponding to a different one of said marked characters, and subsequently sensing the frequency patterns on the basis of frequency alone and supplying the information received as electrical signals to a utilization means.
Claim 5
Dependent Claim
22 words
A process according to claim 2 wherein the magnetic material applied at the marking station is magnetized at the time of marking.
Claim 6
Dependent Claim
20 words
A process according to claim 2 wherein the magnetic material applied at the marking station is magnetized subsequent to marking.
Claim 7
Dependent Claim
16 words
A process according to claim 2 wherein said magnetic material comprises a component of electrostatic toner.
Claim 8
Dependent Claim
17 words
A process according to claim 2 wherein said magnetic material is applied in the form of liquid.
Claim 9
Dependent Claim
18 words
A process according to claim 2 wherein said magnetic material is applied in the form of a solid.
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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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |