US5468971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Verification device for currency containing an embedded security thread
Assignee: Individual
•
Filing: 1994-03-14
•
Granted: 1995-11-21
•
Expires: 2014-03-14
Abstract
Abstract A linear array of photoemitters and photodiodes are positioned on opposite sides of currency paper for denomination and verification determination under transmitted light. The photoemitters are arranged for projecting an image of the indicia printed on the security thread embedded within the currency paper. The photodiodes receive the image and connect with a processor circuit which determines the presence or absence of the security feature, reads the denomination indicia and correspondingly provides indication thereof. The processor contains stored information identifying currency denomination and a comparison is made at the time of verification to also determine the denomination of the proffered currency.
Inventors
- 👤 Steven Ebstein
- 👤 Robert A. Gonsalves
- 👤 Richard A. Menelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:07
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/20; G07D7/202; G07D7/205; G07D7/06; G07D7/12; G07D7/121
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
71 words
Apparatus for authenticating and denominating currency paper comprising; a first light emitter arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security thread; a first light detector arranged along an opposite side of said paper receiving said optical pattern; and logic circuit means connecting with said first light detector comparing said optical pattern to stored values contained therein.
Claim 2
Dependent Claim
71 words
Apparatus for authenticating and denominating currency paper comprising; a first light emitter arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security thread; a first light detector arranged along an opposite side of said paper receiving said optical pattern; and logic circuit means connecting with said first light detector comparing said optical pattern to stored values contained therein.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 including means providing indication as to whether or not said optical pattern compares with said stored values.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein said first light emitter comprises light emitting diodes, lasers or incandescent light.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 wherein said first optical detector comprises an optical diode.
Claim 6
Dependent Claim
15 words
The apparatus of claim 1 wherein said first light emitter comprises an optical emitter array.
Claim 7
Dependent Claim
15 words
The apparatus of claim 1 wherein said first light detector comprises an optical detector array.
Claim 8
Dependent Claim
34 words
The apparatus of claim 1 including a second light emitter arranged along said one side of said proffered paper providing a second optical pattern corresponding to a security device embedded within said proffered paper.
Claim 9
Dependent Claim
42 words
The apparatus of claim 7 including a second light detector arranged along said opposite side of said paper receiving said second optical pattern, said second being connected with said logic circuit for comparing said optical pattern to second stored values contained therein.
Claim 10
Dependent Claim
18 words
The apparatus of claim 7 wherein said second light emitter comprises light emitting diodes, lasers or incandescent light.
Claim 11
Dependent Claim
13 words
The apparatus of claim 8 wherein said second optical detector comprises optical diodes.
Claim 12
Dependent Claim
15 words
The apparatus of claim 7 wherein said second light emitter comprises an optical emitter array.
Claim 13
Dependent Claim
15 words
The apparatus of claim 8 wherein said second light detector comprises an optical diode array.
Claim 14
Dependent Claim
121 words
Apparatus for authenticating and denominating currency paper comprising: a pair of first light emitters arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security threads one of said first light emitters being focussed on said security thread to provide a clear image of said indicia and the other of said first light emitters being unfocussed on said security thread to provide a blurred image of said indicia; a light detector arranged along an opposite side of said paper receiving said clear and blurred images; and logic circuit means connecting with said first light detector combining said clear and blurred images to produce a resultant image of said indicia.
Claim 15
Dependent Claim
121 words
Apparatus for authenticating and denominating currency paper comprising: a pair of first light emitters arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security threads one of said first light emitters being focussed on said security thread to provide a clear image of said indicia and the other of said first light emitters being unfocussed on said security thread to provide a blurred image of said indicia; a light detector arranged along an opposite side of said paper receiving said clear and blurred images; and logic circuit means connecting with said first light detector combining said clear and blurred images to produce a resultant image of said indicia.
Claim 16
Dependent Claim
17 words
The apparatus of claim 13 wherein said light emitters comprise light emitting diodes, lasers or incandescent light.
Claim 17
Dependent Claim
13 words
The apparatus of claim 13 wherein said light detector comprises an optical diode.
Claim 18
Independent Claim
83 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a light emitter on one side of said paper providing an optical pattern corresponding to said indicia arranging a light detector along an opposite side of said paper receiving said optical pattern; and connecting logic means with said first light detector for comparing said optical pattern to stored values contained therein to thereby determine said commercial value.
Claim 19
Independent Claim
83 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a light emitter on one side of said paper providing an optical pattern corresponding to said indicia arranging a light detector along an opposite side of said paper receiving said optical pattern; and connecting logic means with said first light detector for comparing said optical pattern to stored values contained therein to thereby determine said commercial value.
Claim 20
Independent Claim
124 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a pair of light emitters on one side of said paper, one of said light emitters providing a first clear image of said security thread and the other of said light emitters providing a blurred image thereof; arranging a pair of light detectors on an opposite side of said paper in optical communication with said light emitters; connecting said light detectors with a logic circuit containing stored data indicative of said security thread; combining said clear and blurred images to form a resultant image; and comparing said resultant image with said stored data for determining said commercial value.
Claim 21
Independent Claim
124 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a pair of light emitters on one side of said paper, one of said light emitters providing a first clear image of said security thread and the other of said light emitters providing a blurred image thereof; arranging a pair of light detectors on an opposite side of said paper in optical communication with said light emitters; connecting said light detectors with a logic circuit containing stored data indicative of said security thread; combining said clear and blurred images to form a resultant image; and comparing said resultant image with said stored data for determining said commercial value.
Claim 22
Dependent Claim
71 words
Apparatus for authenticating and denominating currency paper comprising; a first light emitter arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security thread; a first light detector arranged along said one side of said paper receiving said optical pattern; and logic circuit means connecting with said first light detector comparing said optical pattern to stored values contained therein.
Claim 23
Dependent Claim
71 words
Apparatus for authenticating and denominating currency paper comprising; a first light emitter arranged along one side of a paper containing an embedded security thread providing an optical pattern corresponding to indicia contained on said security thread; a first light detector arranged along said one side of said paper receiving said optical pattern; and logic circuit means connecting with said first light detector comparing said optical pattern to stored values contained therein.
Claim 24
Dependent Claim
18 words
The apparatus of claim 18 wherein said first light emitter comprises light emitting diodes, lasers or incandescent light.
Claim 25
Independent Claim
83 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a light emitter on one side of said paper providing an optical pattern corresponding to said indicia arranging a light detector along said one side of said paper receiving said optical pattern; and connecting logic means with said first light detector for comparing said optical pattern to stored values contained therein to thereby determine said commercial value.
Claim 26
Independent Claim
83 words
A method of denominating commercial paper and currency comprising the steps of: providing a paper containing an embedded security thread having indicia of commercial value; arranging a light emitter on one side of said paper providing an optical pattern corresponding to said indicia arranging a light detector along said one side of said paper receiving said optical pattern; and connecting logic means with said first light detector for comparing said optical pattern to stored values contained therein to thereby determine said commercial value.
References Cited (Backward Citations)
US4435834A
Cited
US4309602A
Cited
US4524276A
Cited
US4652015A
Cited
US4761205A
Cited
US4837840A
Cited
US4980569A
Cited
US5151607A
Cited
US5210398A
Cited
US5308992A
Cited
US5260582A
Cited
US5416307A
Cited
US5399874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |