US4574190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Verifying system
Assignee: Omron Corp
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Filing: 1984-11-29
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Granted: 1986-03-04
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Expires: 2004-11-29
Abstract
Abstract A system for the verification of a magnetically printed material as to whether it is genuine or counterfeit is disclosed having magnetic and photo sensors arranged on the same scan line relative to the magnetically printed material for reading magnetic and optical patterns on the same scan line, and a first discriminator for, after the magnetic and optical patterns are superimposed one above the other at the same check point, discriminating change in level thereof. The system may further comprises a second discriminator for discriminating a change in level of the magnetic pattern. A combined optical and magnetic sensor assembly for the system is also disclosed.
Inventors
- 👤 Hiroyuki Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/06; G07D7/12; G07D7/04; G07D7/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A system for the verification of a magnetic printed material as to whether it is genuine or counterfeit, comprising magnetic and photo sensors arranged on the same scan line relative to the magnetically printed material for reading magnetic and optical patterns on the same scan line; a first discriminating means for, after the magnetic and optical patterns are superimposed one above the other at the same check point, discriminating the change in level thereof; and a second discriminating means for discriminating change in the level of the magnetic pattern, wherein the verification is performed on the basis of the results of the discrimination performed by the first and second discriminating means.
Claim 2
Independent Claim
111 words
A system for the verification of a magnetic printed material as to whether it is genuine or counterfeit, comprising magnetic and photo sensors arranged on the same scan line relative to the magnetically printed material for reading magnetic and optical patterns on the same scan line; a first discriminating means for, after the magnetic and optical patterns are superimposed one above the other at the same check point, discriminating the change in level thereof; and a second discriminating means for discriminating change in the level of the magnetic pattern, wherein the verification is performed on the basis of the results of the discrimination performed by the first and second discriminating means.
Claim 3
Dependent Claim
45 words
A combined magnetic and optical sensor assembly which comprising a casing having a detecting window and a connection terminal support, a magnetic sensor accommodated within the casing, and a photo sensor accommodated within the casing and positioned between the magnetic sensor and the detecting window.
Claim 4
Dependent Claim
45 words
A combined magnetic and optical sensor assembly which comprising a casing having a detecting window and a connection terminal support, a magnetic sensor accommodated within the casing, and a photo sensor accommodated within the casing and positioned between the magnetic sensor and the detecting window.
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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |