Connect public, paid and private patent data with Google Patents Public Datasets

Secondary detection circuit with sharp cutoff for security validating

Download PDF

Info

Publication number
US3778628A
US3778628A US3778628DA US3778628A US 3778628 A US3778628 A US 3778628A US 3778628D A US3778628D A US 3778628DA US 3778628 A US3778628 A US 3778628A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
security
circuit
detection
means
transistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
F Novak
K Schreiber
S Hydo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ardac Inc
Original Assignee
Ardac Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07DHANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers or for segregating those which are alien to a currency or otherwise unacceptable

Abstract

A secondary detection circuit for a paper security validating device which device scanned a portion of one surface of the paper security. The secondary detection circuit compares the level of reflection of light from the reverse side of the security with a known level and, if the reflected level falls below a first value or exceeds a second greater value, the secondary detection circuit blocks the output of the primary detection circuit regardless of whether or not an authentic signal is produced by the primary circuit.

Description

United States Patent [1 1 Novak et al.

[ Dec. 11, 1973 SECONDARY DETECTION CIRCUIT WITH SHARP CUTOFF FOR SECURITY VALIDATING [75] Inventors: Frank A. Novak, Seven Hills;

Kenneth T. Schreiher, Bedford; Steven J. Hydo, Berea, all of Ohio [73] Assignee: ARDAC/USA Incorporated,

Willoughby, Ohio [22] Filed: Aug. 2, 1971 [2]] Appl. No.: 168,088

Primary ExaminerWalter Stolwein Attorney-Albert H. Oldham et al.

[57] ABSTRACT A secondary detection circuit for a paper security validating device which device scanned a portion of one surface of the paper security. The secondary detection 52 us. Cl 0 5s 0 4 R, 209 DIG. I l 25 l 25 gimi circuit compares the level of reflection of light from [51] In. CL H G01 21/32 the reverse side of the security with a known level [58] Field lg DO 214 R and, if the reflected level falls below a first value or C 4 20971316 exceeds a second greater value, the secondary detection circuit blocks the output of the primary detection [56] Reierences Cited circuit regardless of whether or not an authentic signal UNITED STATES PATENTS is produced by the primary circuit.

3,519,828 7/1970 Milford 250/219 X DO 11 Claims, 2 Drawing Figures COMMON PAIENIEDBEC 1 1 ma 3.778.628

sum 1s? 2 20 v oc our COMMON FRANK A. NOVAK KENNETH I SCHREIBER BYSTEVEN J. HYDO ATTORNEYS PAIENIEU ntn 1 ms SHZEI 2 BF 2 9 momnom r 222541 \L H/ Q F1 2K mm H mm ow Swami! CDQEQ mowzwm k503 20531:; i316 E 20.65% 3323mm 9 ATTORNEYS SECONDARY DETECTION CIRCUIT WITH SHARP CUTOFF FOR SECURITY VALIDATING The present invention relates to a paper security validating device and more particularly to a circuit for performing a secondary validation check on the security.

Devices which determine the validity of paper security such as currency by scanning a portion of the security are well known. One such device is shown in U.S. Pat. No. 3,457,421, issued July 22, 1969 for Radiation Sensitive Paper Security Validation Apparatus. Since the physical condition of the paper security may vary greatly, the validation apparatus must have a range of acceptance. This is especially true where currency is being detected as the validation apparatus will frequently be presented with valid pieces of currency which are considerably worn and dirty. A lower limit on the detection range must be established, however, to avoid the acceptance of non-authentic documents such as high quality photocopies. As a result, a portion of the valid securities must be rejected to avoid the acceptance of invalid securities.

It is the primary object of the present invention to provide a secondary detection circuit for a paper security validating device which permits the device to accept low quality valid securities while rejecting high quality reproductions.

It is also an object of the present inventionto provide a secondary detection circuit for a paper security 'validating device which senses the reverse side of the security from that scanned by the primary detection circuit to thereby eliminate all photocopies or other reproductions.

A further object of the present invention is the provision of a secondary detection circuit which may be added to an existing paper security validating device to permit the range of acceptance of valid securities by the device to be extended without increasing the possibility of acceptance of an invalid document.

The above and other objects of the invention which will become apparent in the following detailed discription are achieved by providing a secondary detection circuit for a paper security validating device which consists, essentially, of a light source directed to the reverse side of the security from that scanned by the primary detection means, means to detect the level of light reflected from the security and to compare this level with a reference level, an amplifier for amplifying the result of the comparison, and high and low threshold detectors for determining when the amplified comparison signal falls within an acceptable range For a more complete understanding of the invention and the objects and advantages thereof reference should be had to the followingdetailed description and the accompanying drawing wherein there is shown a preferred embodiment of the invention.

In the drawing:

FIG. 1 is a schematic showing of the detection circuit of the present invention; and

FIG. 2 is a plan view of the sensor arrangement of the secondary detection circuit.

The security validating circuit of the present invention consists of two functional groups, the primary grid detection circuit and the secondary detection circuit 12. It will be understood that the primary grid detection circuit 10 illustrated herein is illustrative of one type of detection circuit which may be used but the invention is not limited to the particular circuit disclosed.

In the primary detection circuit 10 an input signal is supplied over the conductor 14 from the security scanning means. The scanning means may, for example, be the sensing cell grid arrangement illustrated in the above-mentioned patent. A typical scanning assembly generates an AC signal by detecting the passage of radiation from a source 28 through a portion of the security 30 and through a grid or reticle 32 positioned close to the security while relative movement is effected between the grid 32 and the security 30. This input signal over the conductor 14 is connected through the capacitor C1 to the noninverting input of an amplifier ICI. The resistor R5 establishes the AC impedance at this point while the resistors R2 and R3 form an accurate divider across the supply voltage. The junction of the resistors R2 and R3 provides a reference equal to one half of the supply voltage. The capacitor C2 provides a low impedance AC path from the reference point to ground. Resistors R6 and R4 fix the gain of the amplifier ICI. Potentiometer R7 adjusts the operative bias of the amplifier ICl. The amplified AC signal generated by a valid scan is coupled through the capacitor C3 and resistor R8 to the base of a transistor 01. Resistor R9 provides a return path to the ground for the base of the transistor 01. The positive going portion of the AC signal overcomes the base-emitter voltage threshold of transistor 01 and causes the collector of transistor O1 to conduct heavily through the primary of transformer of T1. The collector of transistor O1 is clamped at 30 volts by the zener diode D1 during the off portion of the cycle. The resulting primary signal of the transformer T1 is coupled to the secondary of the transformer and applied to lamp DSl. Several cycles of energy are required for the lamp DSl to attain illumination. When illumination is obtained the light output then lowers the resistance of the light dependent cadmium sulfide cell R23. This applies a DC signal to the gate of the silicon control switch Q2, triggering conduction of the switch Q2. Conduction of Q2 establishes an output signal in the conductor 16 indicating the detection of a valid peice of currency. The resistor R11 provides a ground return for gate 1 of the switch Q2 and the capacitor C4 prevents any noise signal at gate 1. Resistor R12 provides off bias to gate 2 of the silicon control switch Q2.

In order to prevent the acceptance of a photocopy the secondary detection circuit 12 measures the reflections of the reverse side of the paper security. The secondary detection circuit includes a sensing unit designated generally by the reference numeral 18 and illustrated in FIG. 2. This unit includes a lamp 20 to provide illumination, preferably in the infrared region, to the rear side of the note. A pair of closely matched silicon solar cells 22 and 24 are positioned closely adjacent to the lamp 20. The assembly 18 is mounted on a suitable supporting board and positioned closely adjacent the rear side of the paper security so that the illumination from the lamp 20 is reflected to the silicon solar cell 22. The cell 24 is covered with a light vane 26 so that it receives uniform reflection of the illumination of the lamp 20. The amount of reflectance of an average note is determined empirically and the light vane 26 is adjusted so that the output of the silicon solar cells 22 and 24 are equal to zero. This is indicated at amplifier output as one half the supply voltage when measuring an average note. The silicon solar cells 22 and 24 are arranged in a series-aiding configuration. The differential output ofthis circuit is applied to the inputs of a DC operational amplifier 1C2. Both inputs are referenced to the precision divider formed of resistors R2 and R3 through the resistors R 13 and R 14. The gain of the amplifier 1C2 is determined by negative feedback through the potentiometer R 16 and resistor R 15. The output of the amplifier [C2 will be low (toward ground) for a lighter (white) note and will be high (toward supply voltage) for a darker (black) note.

When the amplifier output approaches the high limit conduction occurs through the zener diode D3, resistor R21, and the base-emitter junction of transistor Q4. Transistor O4 is thus forward biased and its collector clamps the base of transistor O1 to ground. Therefore, an accept command from the primary grid detection circuit amplifier IC'l does not bias the transistor Q1 on and no signal is generated through the transformer T1.

Similarly, when the low limit is approached, conduction occurs through the zener diode D2, resistor R19, and base-emitter junction of the transistor Q3. Collector current of the transistor Q3 then flows through the resistor R20 and forward biases the transistor Q4 again clamping the base of the transistor Q1 to ground and preventing an authentic signal from being produced. The resistors R18 and R22 provide a return path for leakage of thezener diodes D2 and D3 and transistors Q3 and Q4. The diode D4 acts as a reverse voltage clamp for transistor Q4.

It will be understood that while particular reference has been made to the measurement of the reflectivity of the reverse side of the paper security from that scanned by the primary detection circuit, the invention is not limited thereto. Rather, the tests of reflectivity can be made on the same side of the security as is the primary test. However, measurement of the reflectivity of the reverse side of the security is preferable since the photocopies are one sided and measurement of the reverse side permits accurate detection and rejection of such photocopies.

While only the best known embodiment of the invention has been illustrated and described in detail herein it will be understood that the invention is not limited thereto or thereby. Reference should therefore be had to the appended claims in determining the true scope of the invention.

What is claimed is:

1. In a paper security validating apparatus having means for scanning a portion of the security to determine the authenticity thereof and to produce an output signal when the scanning indicates a valid security, the improvement comprising:

means for illuminating a portion of the security;

a first sensor for detecting the amount of illumination reflected from the illuminated portion of the security;

a reference surface, illuminated by the means for illuminating and having substantially the same reflective qualities as the portion of the security being illuminated;

a second sensor for detecting the amount of illumination reflected from the reference surface;

means for comparing the output signals of the first and second sensors; and

means responsive to the comparing means for blocking the output signal of the authenticity determining means when the output signals of the first and second sensors differ by more than a predetermined amount.

2. The improvement according to claim 1 wherein the first and second sensors are silicon solar cells.

3. The improvement according to claim 2 when the first and second sensors have closely matched characteristics and are connected in a series-aiding network.

4. The improvement according to claim 1 wherein the means for illuminating and the sensors are located on the opposite side of the paper security from the means for scanning.

5. The improvement according to claim 1 wherein the means for illuminating is an infrared light source.

6. Apparatus for determining the authenticity of a paper security, comprising:

a first detection circuit including means to scan a portion of the security and means to produce an output signal when the scanning means detects an apparently authentic security; and

a second detection circuit for scanning a second portion of the security and operative to block the output signal of the first detection circuit when an invalid security is detected, the second detection circuit including means for illuminating the second portion of the security,

a sensor for detecting the amount of illumination refiected from the second portion of the security,

circuit means receiving the output of the sensor and operative to block the first detector circuit output signal when the output of the sensor departs from a reference level by more than a predetermined amount,

wherein the first detector circuit means to produce an output signal includes a first normally nonconductive transistor which becomes conductive when an apparently valid security is scanned, the circuit means of the second detection circuit including a second transistor which is normally non- .conductive-but becomes conductive upon detection of an invalid security by the second detection circuit, conduction of the second transistor holding the first transistor in a non-conductive state,

wherein the circuit means of the second detector circuit includes a second sensor illuminated by reflection from the means for illuminating, the first and second sensors being connected in a series-aiding network,

and where a reflective surface is provided to direct illumination from the means to illuminate uniformly to the second sensor.

7. Apparatus according to claim 6 wherein the sensors are silicon solar sensors having closely matched characteristics.

8. Apparatus according to claim 7 wherein the reflective surface is adjustably mounted to controllably vary the amount of reflected illumination to the second sensor.

9. Apparatus according to claim 6 further including an amplifier receiving the output of the sensor network and controlling the second transistor.

10. Apparatus according to claim 9 further including a zener diode in series connection between the amplifier and the second transistor to block current flow from the amplifier until the amplifier signal exceeds a predetermined level.

- 11. Apparatus according to claim 10 further includthird transistor to permit current flow to the third traning a third transistor which is normally non-conductive Sister only when the amplifier output is below a second and which biases the second transistor to a conductive state when the third transistor conducts, a second zener diode being provided between the amplifier and the 5 predetermined level.

Claims (11)

1. In a paper security validating apparatus having means for scanning a portion of the security to determine the authenticity thereof and to produce an output signal when the scanning indicates a valid security, the improvement comprising: means for illuminating a portion of the security; a first sensor for detecting the amount of illumination reflected from the illuminated portion of the security; a reference surface, illuminated by the means for illuminating and having substantially the same reflective qualities as the portion of the security being illuminated; a second sensor for detecting the amount of illumination reflected from the reference surface; means for comparing the output signals of the first and second sensors; and means responsive to the comparing means for blocking the output signal of the authenticity determining means when the output signals of the first and second sensors differ by more than a predetermined amount.
2. The improvement according to claim 1 wherein the first and second sensors are silicon solar cells.
3. The improvement according to claim 2 when the first and second sensors have closely matched characteristics and are connected in a series-aiding network.
4. The improvement accordiNg to claim 1 wherein the means for illuminating and the sensors are located on the opposite side of the paper security from the means for scanning.
5. The improvement according to claim 1 wherein the means for illuminating is an infrared light source.
6. Apparatus for determining the authenticity of a paper security, comprising: a first detection circuit including means to scan a portion of the security and means to produce an output signal when the scanning means detects an apparently authentic security; and a second detection circuit for scanning a second portion of the security and operative to block the output signal of the first detection circuit when an invalid security is detected, the second detection circuit including means for illuminating the second portion of the security, a sensor for detecting the amount of illumination reflected from the second portion of the security, circuit means receiving the output of the sensor and operative to block the first detector circuit output signal when the output of the sensor departs from a reference level by more than a predetermined amount, wherein the first detector circuit means to produce an output signal includes a first normally non-conductive transistor which becomes conductive when an apparently valid security is scanned, the circuit means of the second detection circuit including a second transistor which is normally non-conductive but becomes conductive upon detection of an invalid security by the second detection circuit, conduction of the second transistor holding the first transistor in a non-conductive state, wherein the circuit means of the second detector circuit includes a second sensor illuminated by reflection from the means for illuminating, the first and second sensors being connected in a series-aiding network, and where a reflective surface is provided to direct illumination from the means to illuminate uniformly to the second sensor.
7. Apparatus according to claim 6 wherein the sensors are silicon solar sensors having closely matched characteristics.
8. Apparatus according to claim 7 wherein the reflective surface is adjustably mounted to controllably vary the amount of reflected illumination to the second sensor.
9. Apparatus according to claim 6 further including an amplifier receiving the output of the sensor network and controlling the second transistor.
10. Apparatus according to claim 9 further including a zener diode in series connection between the amplifier and the second transistor to block current flow from the amplifier until the amplifier signal exceeds a predetermined level.
11. Apparatus according to claim 10 further including a third transistor which is normally non-conductive and which biases the second transistor to a conductive state when the third transistor conducts, a second zener diode being provided between the amplifier and the third transistor to permit current flow to the third transistor only when the amplifier output is below a second predetermined level.
US3778628A 1971-08-02 1971-08-02 Secondary detection circuit with sharp cutoff for security validating Expired - Lifetime US3778628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16808871 true 1971-08-02 1971-08-02

Publications (1)

Publication Number Publication Date
US3778628A true US3778628A (en) 1973-12-11

Family

ID=22610068

Family Applications (1)

Application Number Title Priority Date Filing Date
US3778628A Expired - Lifetime US3778628A (en) 1971-08-02 1971-08-02 Secondary detection circuit with sharp cutoff for security validating

Country Status (1)

Country Link
US (1) US3778628A (en)

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035655A (en) * 1975-01-22 1977-07-12 Commissariat A L'energie Atomique Method and a device for implantation of particles into a substrate
US4288781A (en) * 1978-11-13 1981-09-08 The Perkin-Elmer Corporation Currency discriminator
US5201395A (en) * 1990-09-27 1993-04-13 Oki Electric Industry Co., Ltd. Bill examination device
US5633949A (en) * 1990-02-05 1997-05-27 Cummins-Allison Corp. Method and apparatus for currency discrimination
US5652802A (en) * 1990-02-05 1997-07-29 Cummins-Allison Corp. Method and apparatus for document identification
US5724438A (en) * 1990-02-05 1998-03-03 Cummins-Allison Corp. Method of generating modified patterns and method and apparatus for using the same in a currency identification system
US5790693A (en) * 1990-02-05 1998-08-04 Cummins-Allison Corp. Currency discriminator and authenticator
US5790697A (en) * 1990-02-05 1998-08-04 Cummins-Allion Corp. Method and apparatus for discriminating and counting documents
US5815592A (en) * 1990-02-05 1998-09-29 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US5870487A (en) * 1990-02-05 1999-02-09 Cummins-Allison Corp. Method and apparatus for discriminting and counting documents
US5875259A (en) * 1990-02-05 1999-02-23 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US5905810A (en) * 1990-02-05 1999-05-18 Cummins-Allison Corp. Automatic currency processing system
US5940623A (en) * 1997-08-01 1999-08-17 Cummins-Allison Corp. Software loading system for a coin wrapper
US5960103A (en) * 1990-02-05 1999-09-28 Cummins-Allison Corp. Method and apparatus for authenticating and discriminating currency
US5966456A (en) * 1990-02-05 1999-10-12 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US5982918A (en) * 1995-05-02 1999-11-09 Cummins-Allison, Corp. Automatic funds processing system
US6026175A (en) * 1996-09-27 2000-02-15 Cummins-Allison Corp. Currency discriminator and authenticator having the capability of having its sensing characteristics remotely altered
US6039645A (en) * 1997-06-24 2000-03-21 Cummins-Allison Corp. Software loading system for a coin sorter
US6220419B1 (en) 1994-03-08 2001-04-24 Cummins-Allison Method and apparatus for discriminating and counting documents
US6237739B1 (en) 1997-05-07 2001-05-29 Cummins-Allison Corp. Intelligent document handling system
US6241069B1 (en) 1990-02-05 2001-06-05 Cummins-Allison Corp. Intelligent currency handling system
US6278795B1 (en) 1995-12-15 2001-08-21 Cummins-Allison Corp. Multi-pocket currency discriminator
US6311819B1 (en) 1996-05-29 2001-11-06 Cummins-Allison Corp. Method and apparatus for document processing
US6318537B1 (en) 1999-04-28 2001-11-20 Cummins-Allison Corp. Currency processing machine with multiple internal coin receptacles
US6363164B1 (en) 1996-05-13 2002-03-26 Cummins-Allison Corp. Automated document processing system using full image scanning
US6398000B1 (en) 2000-02-11 2002-06-04 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US6459806B1 (en) 1990-02-05 2002-10-01 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US6493461B1 (en) 1998-03-17 2002-12-10 Cummins-Allison Corp. Customizable international note counter
US6588569B1 (en) 2000-02-11 2003-07-08 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US6601687B1 (en) 2000-02-11 2003-08-05 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US6628816B2 (en) 1994-08-09 2003-09-30 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6636624B2 (en) 1990-02-05 2003-10-21 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US6637576B1 (en) 1999-04-28 2003-10-28 Cummins-Allison Corp. Currency processing machine with multiple internal coin receptacles
US6661910B2 (en) 1997-04-14 2003-12-09 Cummins-Allison Corp. Network for transporting and processing images in real time
US6778693B2 (en) 1995-05-02 2004-08-17 Cummins-Allison Corp. Automatic currency processing system having ticket redemption module
US6843418B2 (en) 2002-07-23 2005-01-18 Cummin-Allison Corp. System and method for processing currency bills and documents bearing barcodes in a document processing device
US6860375B2 (en) 1996-05-29 2005-03-01 Cummins-Allison Corporation Multiple pocket currency bill processing device and method
US6866134B2 (en) 1992-05-19 2005-03-15 Cummins-Allison Corp. Method and apparatus for document processing
US6880692B1 (en) 1995-12-15 2005-04-19 Cummins-Allison Corp. Method and apparatus for document processing
US6913130B1 (en) 1996-02-15 2005-07-05 Cummins-Allison Corp. Method and apparatus for document processing
US6915893B2 (en) 2001-04-18 2005-07-12 Cummins-Alliston Corp. Method and apparatus for discriminating and counting documents
US6959800B1 (en) 1995-12-15 2005-11-01 Cummins-Allison Corp. Method for document processing
US6980684B1 (en) 1994-04-12 2005-12-27 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US7000828B2 (en) 2001-04-10 2006-02-21 Cummins-Allison Corp. Remote automated document processing system
US7016767B2 (en) 2003-09-15 2006-03-21 Cummins-Allison Corp. System and method for processing currency and identification cards in a document processing device
US7158662B2 (en) 2002-03-25 2007-01-02 Cummins-Allison Corp. Currency bill and coin processing system
US7187795B2 (en) 2001-09-27 2007-03-06 Cummins-Allison Corp. Document processing system using full image scanning
US7232024B2 (en) 1996-05-29 2007-06-19 Cunnins-Allison Corp. Currency processing device
US7248731B2 (en) 1992-05-19 2007-07-24 Cummins-Allison Corp. Method and apparatus for currency discrimination
US7269279B2 (en) 2002-03-25 2007-09-11 Cummins-Allison Corp. Currency bill and coin processing system
US7551764B2 (en) 2002-03-25 2009-06-23 Cummins-Allison Corp. Currency bill and coin processing system
US7619721B2 (en) 1996-11-27 2009-11-17 Cummins-Allison Corp. Automated document processing system using full image scanning
US7647275B2 (en) 2001-07-05 2010-01-12 Cummins-Allison Corp. Automated payment system and method
US7903863B2 (en) 2001-09-27 2011-03-08 Cummins-Allison Corp. Currency bill tracking system
US7929749B1 (en) 2006-09-25 2011-04-19 Cummins-Allison Corp. System and method for saving statistical data of currency bills in a currency processing device
US7946406B2 (en) 2005-11-12 2011-05-24 Cummins-Allison Corp. Coin processing device having a moveable coin receptacle station
US7980378B2 (en) 2006-03-23 2011-07-19 Cummins-Allison Corporation Systems, apparatus, and methods for currency processing control and redemption
US8162125B1 (en) 1996-05-29 2012-04-24 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8204293B2 (en) 2007-03-09 2012-06-19 Cummins-Allison Corp. Document imaging and processing system
US8391583B1 (en) 2009-04-15 2013-03-05 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8417017B1 (en) 2007-03-09 2013-04-09 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8428332B1 (en) 2001-09-27 2013-04-23 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8433123B1 (en) 2001-09-27 2013-04-30 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437529B1 (en) 2001-09-27 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437528B1 (en) 2009-04-15 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437530B1 (en) 2001-09-27 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
USRE44252E1 (en) 2002-01-10 2013-06-04 Cummins-Allison Corp. Coin redemption system
US8459436B2 (en) 2008-10-29 2013-06-11 Cummins-Allison Corp. System and method for processing currency bills and tickets
US8478020B1 (en) 1996-11-27 2013-07-02 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8538123B1 (en) 2007-03-09 2013-09-17 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8627939B1 (en) 2002-09-25 2014-01-14 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8929640B1 (en) 2009-04-15 2015-01-06 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8944234B1 (en) 2001-09-27 2015-02-03 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8950566B2 (en) 1996-05-13 2015-02-10 Cummins Allison Corp. Apparatus, system and method for coin exchange
US9141876B1 (en) 2013-02-22 2015-09-22 Cummins-Allison Corp. Apparatus and system for processing currency bills and financial documents and method for using the same
US9818249B1 (en) 2002-09-04 2017-11-14 Copilot Ventures Fund Iii Llc Authentication method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304432A (en) * 1963-09-05 1967-02-14 Nat Rejectors Gmbh Photosensitive sensing system for a currency detector
US3360653A (en) * 1964-10-22 1967-12-26 Transmarine Corp Photoelectric document authenticating apparatus with age and color compensation
US3443107A (en) * 1965-05-28 1969-05-06 Automated Machines Corp Radiation sensitive currency testing device
US3496370A (en) * 1966-05-16 1970-02-17 Advance Data Systems Corp Bill validation device with transmission and color tests
US3519828A (en) * 1968-08-09 1970-07-07 Gen Electric Automatic gain control circuit for photocell amplifiers using variation of forward bias across photocell
US3619569A (en) * 1970-07-15 1971-11-09 Rca Corp Optical card-reading apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304432A (en) * 1963-09-05 1967-02-14 Nat Rejectors Gmbh Photosensitive sensing system for a currency detector
US3360653A (en) * 1964-10-22 1967-12-26 Transmarine Corp Photoelectric document authenticating apparatus with age and color compensation
US3443107A (en) * 1965-05-28 1969-05-06 Automated Machines Corp Radiation sensitive currency testing device
US3496370A (en) * 1966-05-16 1970-02-17 Advance Data Systems Corp Bill validation device with transmission and color tests
US3519828A (en) * 1968-08-09 1970-07-07 Gen Electric Automatic gain control circuit for photocell amplifiers using variation of forward bias across photocell
US3619569A (en) * 1970-07-15 1971-11-09 Rca Corp Optical card-reading apparatus

Cited By (157)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035655A (en) * 1975-01-22 1977-07-12 Commissariat A L'energie Atomique Method and a device for implantation of particles into a substrate
US4288781A (en) * 1978-11-13 1981-09-08 The Perkin-Elmer Corporation Currency discriminator
US6241069B1 (en) 1990-02-05 2001-06-05 Cummins-Allison Corp. Intelligent currency handling system
US5633949A (en) * 1990-02-05 1997-05-27 Cummins-Allison Corp. Method and apparatus for currency discrimination
US5652802A (en) * 1990-02-05 1997-07-29 Cummins-Allison Corp. Method and apparatus for document identification
US5724438A (en) * 1990-02-05 1998-03-03 Cummins-Allison Corp. Method of generating modified patterns and method and apparatus for using the same in a currency identification system
US5790693A (en) * 1990-02-05 1998-08-04 Cummins-Allison Corp. Currency discriminator and authenticator
US5790697A (en) * 1990-02-05 1998-08-04 Cummins-Allion Corp. Method and apparatus for discriminating and counting documents
US5815592A (en) * 1990-02-05 1998-09-29 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US5822448A (en) * 1990-02-05 1998-10-13 Cummins-Allison Corp. Method and apparatus for currency discrimination
US5832104A (en) * 1990-02-05 1998-11-03 Cummins-Allison Corp. Method and apparatus for document identification
US5867589A (en) * 1990-02-05 1999-02-02 Cummins-Allison Corp. Method and apparatus for document identification
US5870487A (en) * 1990-02-05 1999-02-09 Cummins-Allison Corp. Method and apparatus for discriminting and counting documents
US5875259A (en) * 1990-02-05 1999-02-23 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US7536046B2 (en) 1990-02-05 2009-05-19 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US5909503A (en) * 1990-02-05 1999-06-01 Cummins-Allison Corp. Method and apparatus for currency discriminator and authenticator
US5912982A (en) * 1990-02-05 1999-06-15 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6459806B1 (en) 1990-02-05 2002-10-01 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US5960103A (en) * 1990-02-05 1999-09-28 Cummins-Allison Corp. Method and apparatus for authenticating and discriminating currency
US6636624B2 (en) 1990-02-05 2003-10-21 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US7672499B2 (en) 1990-02-05 2010-03-02 Cummins-Allison Corp. Method and apparatus for currency discrimination and counting
US5966456A (en) * 1990-02-05 1999-10-12 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6381354B1 (en) 1990-02-05 2002-04-30 Cummins-Allison Corporation Method and apparatus for discriminating and counting documents
US6072896A (en) * 1990-02-05 2000-06-06 Cummins-Allison Corp. Method and apparatus for document identification
US6351551B1 (en) 1990-02-05 2002-02-26 Cummins-Allison Corp. Method and apparatus for discriminating and counting document
US7590274B2 (en) 1990-02-05 2009-09-15 Cummins-Allison Corp. Method and apparatus for currency discrimination
US5905810A (en) * 1990-02-05 1999-05-18 Cummins-Allison Corp. Automatic currency processing system
US5201395A (en) * 1990-09-27 1993-04-13 Oki Electric Industry Co., Ltd. Bill examination device
US7248731B2 (en) 1992-05-19 2007-07-24 Cummins-Allison Corp. Method and apparatus for currency discrimination
US6866134B2 (en) 1992-05-19 2005-03-15 Cummins-Allison Corp. Method and apparatus for document processing
US6378683B2 (en) 1994-03-08 2002-04-30 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6220419B1 (en) 1994-03-08 2001-04-24 Cummins-Allison Method and apparatus for discriminating and counting documents
US7817842B2 (en) 1994-03-08 2010-10-19 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6980684B1 (en) 1994-04-12 2005-12-27 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US6628816B2 (en) 1994-08-09 2003-09-30 Cummins-Allison Corp. Method and apparatus for discriminating and counting documents
US7149336B2 (en) 1995-05-02 2006-12-12 Cummins-Allison Corporation Automatic currency processing system having ticket redemption module
US7778456B2 (en) 1995-05-02 2010-08-17 Cummins-Allison, Corp. Automatic currency processing system having ticket redemption module
US6778693B2 (en) 1995-05-02 2004-08-17 Cummins-Allison Corp. Automatic currency processing system having ticket redemption module
US5982918A (en) * 1995-05-02 1999-11-09 Cummins-Allison, Corp. Automatic funds processing system
US6955253B1 (en) 1995-12-15 2005-10-18 Cummins-Allison Corp. Apparatus with two or more pockets for document processing
US6880692B1 (en) 1995-12-15 2005-04-19 Cummins-Allison Corp. Method and apparatus for document processing
US6959800B1 (en) 1995-12-15 2005-11-01 Cummins-Allison Corp. Method for document processing
US6957733B2 (en) 1995-12-15 2005-10-25 Cummins-Allison Corp. Method and apparatus for document processing
US6278795B1 (en) 1995-12-15 2001-08-21 Cummins-Allison Corp. Multi-pocket currency discriminator
US6913130B1 (en) 1996-02-15 2005-07-05 Cummins-Allison Corp. Method and apparatus for document processing
US6647136B2 (en) 1996-05-13 2003-11-11 Cummins-Allison Corp. Automated check processing system and method
US6654486B2 (en) 1996-05-13 2003-11-25 Cummins-Allison Corp. Automated document processing system
US6650767B2 (en) 1996-05-13 2003-11-18 Cummins-Allison, Corp. Automated deposit processing system and method
US6665431B2 (en) 1996-05-13 2003-12-16 Cummins-Allison Corp. Automated document processing system using full image scanning
US6678401B2 (en) 1996-05-13 2004-01-13 Cummins-Allison Corp. Automated currency processing system
US6678402B2 (en) 1996-05-13 2004-01-13 Cummins-Allison Corp. Automated document processing system using full image scanning
US6724927B2 (en) 1996-05-13 2004-04-20 Cummins-Allison Corp. Automated document processing system with document imaging and value indication
US6996263B2 (en) 1996-05-13 2006-02-07 Cummins-Allison Corp. Network interconnected financial document processing devices
US6731786B2 (en) 1996-05-13 2004-05-04 Cummins-Allison Corp. Document processing method and system
US6603872B2 (en) 1996-05-13 2003-08-05 Cummins-Allison Corp. Automated document processing system using full image scanning
US6810137B2 (en) 1996-05-13 2004-10-26 Cummins-Allison Corp. Automated document processing system and method
US7366338B2 (en) 1996-05-13 2008-04-29 Cummins Allison Corp. Automated document processing system using full image scanning
US8950566B2 (en) 1996-05-13 2015-02-10 Cummins Allison Corp. Apparatus, system and method for coin exchange
US7542598B2 (en) 1996-05-13 2009-06-02 Cummins-Allison Corp. Automated check processing system with check imaging and accounting
US6724926B2 (en) 1996-05-13 2004-04-20 Cummins-Allison Corp. Networked automated document processing system and method
US6363164B1 (en) 1996-05-13 2002-03-26 Cummins-Allison Corp. Automated document processing system using full image scanning
US7391897B2 (en) 1996-05-13 2008-06-24 Cummins-Allison Corp. Automated check processing system with check imaging and accounting
US7735621B2 (en) 1996-05-29 2010-06-15 Cummins-Allison Corp. Multiple pocket currency bill processing device and method
US6929109B1 (en) 1996-05-29 2005-08-16 Cummins Allison Corp. Method and apparatus for document processing
US8162125B1 (en) 1996-05-29 2012-04-24 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8714336B2 (en) 1996-05-29 2014-05-06 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US6311819B1 (en) 1996-05-29 2001-11-06 Cummins-Allison Corp. Method and apparatus for document processing
US7232024B2 (en) 1996-05-29 2007-06-19 Cunnins-Allison Corp. Currency processing device
US6860375B2 (en) 1996-05-29 2005-03-01 Cummins-Allison Corporation Multiple pocket currency bill processing device and method
US6026175A (en) * 1996-09-27 2000-02-15 Cummins-Allison Corp. Currency discriminator and authenticator having the capability of having its sensing characteristics remotely altered
US8442296B2 (en) 1996-11-27 2013-05-14 Cummins-Allison Corp. Check and U.S. bank note processing device and method
US8437531B2 (en) 1996-11-27 2013-05-07 Cummins-Allison Corp. Check and U.S. bank note processing device and method
US8478020B1 (en) 1996-11-27 2013-07-02 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US7619721B2 (en) 1996-11-27 2009-11-17 Cummins-Allison Corp. Automated document processing system using full image scanning
US8514379B2 (en) 1996-11-27 2013-08-20 Cummins-Allison Corp. Automated document processing system and method
US8380573B2 (en) 1996-11-27 2013-02-19 Cummins-Allison Corp. Document processing system
US8339589B2 (en) 1996-11-27 2012-12-25 Cummins-Allison Corp. Check and U.S. bank note processing device and method
US8169602B2 (en) 1996-11-27 2012-05-01 Cummins-Allison Corp. Automated document processing system and method
US9390574B2 (en) 1996-11-27 2016-07-12 Cummins-Allison Corp. Document processing system
US7362891B2 (en) 1996-11-27 2008-04-22 Cummins-Allison Corp. Automated document processing system using full image scanning
US8125624B2 (en) 1996-11-27 2012-02-28 Cummins-Allison Corp. Automated document processing system and method
US6661910B2 (en) 1997-04-14 2003-12-09 Cummins-Allison Corp. Network for transporting and processing images in real time
US7349566B2 (en) 1997-04-14 2008-03-25 Cummins-Allison Corp. Image processing network
US6237739B1 (en) 1997-05-07 2001-05-29 Cummins-Allison Corp. Intelligent document handling system
US6039645A (en) * 1997-06-24 2000-03-21 Cummins-Allison Corp. Software loading system for a coin sorter
US5940623A (en) * 1997-08-01 1999-08-17 Cummins-Allison Corp. Software loading system for a coin wrapper
US6493461B1 (en) 1998-03-17 2002-12-10 Cummins-Allison Corp. Customizable international note counter
US6621919B2 (en) 1998-03-17 2003-09-16 Cummins-Allison Corp. Customizable international note counter
US6318537B1 (en) 1999-04-28 2001-11-20 Cummins-Allison Corp. Currency processing machine with multiple internal coin receptacles
US6637576B1 (en) 1999-04-28 2003-10-28 Cummins-Allison Corp. Currency processing machine with multiple internal coin receptacles
US6398000B1 (en) 2000-02-11 2002-06-04 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US8701857B2 (en) 2000-02-11 2014-04-22 Cummins-Allison Corp. System and method for processing currency bills and tickets
US6994200B2 (en) 2000-02-11 2006-02-07 Cummins Allison Corp. Currency handling system having multiple output receptacles
US6588569B1 (en) 2000-02-11 2003-07-08 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US7650980B2 (en) 2000-02-11 2010-01-26 Cummins-Allison Corp. Document transfer apparatus
US6601687B1 (en) 2000-02-11 2003-08-05 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US9129271B2 (en) 2000-02-11 2015-09-08 Cummins-Allison Corp. System and method for processing casino tickets
US7938245B2 (en) 2000-02-11 2011-05-10 Cummins-Allison Corp. Currency handling system having multiple output receptacles
US9495808B2 (en) 2000-02-11 2016-11-15 Cummins-Allison Corp. System and method for processing casino tickets
US7000828B2 (en) 2001-04-10 2006-02-21 Cummins-Allison Corp. Remote automated document processing system
US6915893B2 (en) 2001-04-18 2005-07-12 Cummins-Alliston Corp. Method and apparatus for discriminating and counting documents
US7882000B2 (en) 2001-07-05 2011-02-01 Cummins-Allison Corp. Automated payment system and method
US7647275B2 (en) 2001-07-05 2010-01-12 Cummins-Allison Corp. Automated payment system and method
US8126793B2 (en) 2001-07-05 2012-02-28 Cummins-Allison Corp. Automated payment system and method
US8437530B1 (en) 2001-09-27 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8041098B2 (en) 2001-09-27 2011-10-18 Cummins-Allison Corp. Document processing system using full image scanning
US8655046B1 (en) 2001-09-27 2014-02-18 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8944234B1 (en) 2001-09-27 2015-02-03 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US7903863B2 (en) 2001-09-27 2011-03-08 Cummins-Allison Corp. Currency bill tracking system
US8655045B2 (en) 2001-09-27 2014-02-18 Cummins-Allison Corp. System and method for processing a deposit transaction
US8396278B2 (en) 2001-09-27 2013-03-12 Cummins-Allison Corp. Document processing system using full image scanning
US8644585B1 (en) 2001-09-27 2014-02-04 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8428332B1 (en) 2001-09-27 2013-04-23 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8433123B1 (en) 2001-09-27 2013-04-30 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437529B1 (en) 2001-09-27 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8644584B1 (en) 2001-09-27 2014-02-04 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8639015B1 (en) 2001-09-27 2014-01-28 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US7881519B2 (en) 2001-09-27 2011-02-01 Cummins-Allison Corp. Document processing system using full image scanning
US7187795B2 (en) 2001-09-27 2007-03-06 Cummins-Allison Corp. Document processing system using full image scanning
US7200255B2 (en) 2001-09-27 2007-04-03 Cummins-Allison Corp. Document processing system using full image scanning
US8103084B2 (en) 2001-09-27 2012-01-24 Cummins-Allison Corp. Document processing system using full image scanning
US9142075B1 (en) 2001-09-27 2015-09-22 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
USRE44252E1 (en) 2002-01-10 2013-06-04 Cummins-Allison Corp. Coin redemption system
US7551764B2 (en) 2002-03-25 2009-06-23 Cummins-Allison Corp. Currency bill and coin processing system
US7158662B2 (en) 2002-03-25 2007-01-02 Cummins-Allison Corp. Currency bill and coin processing system
US7269279B2 (en) 2002-03-25 2007-09-11 Cummins-Allison Corp. Currency bill and coin processing system
US6843418B2 (en) 2002-07-23 2005-01-18 Cummin-Allison Corp. System and method for processing currency bills and documents bearing barcodes in a document processing device
US9818249B1 (en) 2002-09-04 2017-11-14 Copilot Ventures Fund Iii Llc Authentication method and system
US9355295B1 (en) 2002-09-25 2016-05-31 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8627939B1 (en) 2002-09-25 2014-01-14 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US7016767B2 (en) 2003-09-15 2006-03-21 Cummins-Allison Corp. System and method for processing currency and identification cards in a document processing device
US7946406B2 (en) 2005-11-12 2011-05-24 Cummins-Allison Corp. Coin processing device having a moveable coin receptacle station
US7980378B2 (en) 2006-03-23 2011-07-19 Cummins-Allison Corporation Systems, apparatus, and methods for currency processing control and redemption
US7929749B1 (en) 2006-09-25 2011-04-19 Cummins-Allison Corp. System and method for saving statistical data of currency bills in a currency processing device
US8625875B2 (en) 2007-03-09 2014-01-07 Cummins-Allison Corp. Document imaging and processing system for performing blind balancing and display conditions
US8542904B1 (en) 2007-03-09 2013-09-24 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8538123B1 (en) 2007-03-09 2013-09-17 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8204293B2 (en) 2007-03-09 2012-06-19 Cummins-Allison Corp. Document imaging and processing system
US8417017B1 (en) 2007-03-09 2013-04-09 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8459436B2 (en) 2008-10-29 2013-06-11 Cummins-Allison Corp. System and method for processing currency bills and tickets
US8467591B1 (en) 2009-04-15 2013-06-18 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8929640B1 (en) 2009-04-15 2015-01-06 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8644583B1 (en) 2009-04-15 2014-02-04 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8948490B1 (en) 2009-04-15 2015-02-03 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437528B1 (en) 2009-04-15 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8958626B1 (en) 2009-04-15 2015-02-17 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8437532B1 (en) 2009-04-15 2013-05-07 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8594414B1 (en) 2009-04-15 2013-11-26 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8391583B1 (en) 2009-04-15 2013-03-05 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US9189780B1 (en) 2009-04-15 2015-11-17 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and methods for using the same
US9195889B2 (en) 2009-04-15 2015-11-24 Cummins-Allison Corp. System and method for processing banknote and check deposits
US8559695B1 (en) 2009-04-15 2013-10-15 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8478019B1 (en) 2009-04-15 2013-07-02 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US9477896B1 (en) 2009-04-15 2016-10-25 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US8787652B1 (en) 2009-04-15 2014-07-22 Cummins-Allison Corp. Apparatus and system for imaging currency bills and financial documents and method for using the same
US9558418B2 (en) 2013-02-22 2017-01-31 Cummins-Allison Corp. Apparatus and system for processing currency bills and financial documents and method for using the same
US9141876B1 (en) 2013-02-22 2015-09-22 Cummins-Allison Corp. Apparatus and system for processing currency bills and financial documents and method for using the same

Similar Documents

Publication Publication Date Title
US5684530A (en) Continuous diffuse illumination method and apparatus
US4710963A (en) Apparatus for sensing the condition of a document
US6819886B2 (en) Gloss/density measurement device with feedback to control gloss and density of images produced by an electrographic reproduction apparatus
US3906449A (en) Paper money identifier
US4215930A (en) Method of maintaining the correct conditions of an electrophotographically duplicated image
US5006719A (en) Device for detecting the edge location of an object
US4803470A (en) Substance detector device
US5960103A (en) Method and apparatus for authenticating and discriminating currency
US5909503A (en) Method and apparatus for currency discriminator and authenticator
US5034616A (en) Device for optically scanning sheet-like documents
US4220412A (en) Illuminant discrimination apparatus and method
US5138178A (en) Photoelectric paper basis weight sensor
US4540887A (en) High contrast ratio paper sensor
US3782543A (en) Document recognition systems
US4559452A (en) Apparatus for detecting edge of semitransparent plane substance
US4574190A (en) Verifying system
US5764367A (en) Method and apparatus for measuring a position of a web or sheet
US4429991A (en) Method for detecting physical anomalies of U.S. currency
US6937322B2 (en) Methods and devices for testing the color fastness of imprinted objects
US4468120A (en) Foreign substance inspecting apparatus
US3725667A (en) Bank note testing apparatus
US3562785A (en) Image adjusting method
US6328150B1 (en) Coin discriminating apparatus
US5889883A (en) Method and apparatus for optical sensor system and optical interface circuit
US4618257A (en) Color-sensitive currency verifier