Motorized document scanner

• US 8,107,135 B2
• Filed: 06/25/2008
• Issued: 01/31/2012
• Est. Priority Date: 06/25/2008
• Status: Expired due to Fees

• Current Assignee: Digital Check Corp
• Original Assignee: Burroughs Payment Systems Incorporated
• Inventors: Moore, Michael J., Gudenburr, John, Hutson, Sammy C.
• Primary Examiner(s): Lee, Cheukfan
• Application Number:
  US12/145,571
• Publication Number:
  US 20090323140A1
• Time in Patent Office: 1,315 Days
• Field of Search: 358/474, 358/442, 358/497, 358/494, 358/505, 358/483, 358/472, 358/408, 382/320, 382/312, 382/313, 382/318, 235/454
• US Class Current: 358/474
• CPC Class Codes: G06K 13/16 Handling flexible sheets, e.g. cheques
• CPC Class Codes: H04N 1/1017 the main-scanning components remaining positionally invariant with respect to one another in the sub-scanning direction
• CPC Class Codes: H04N 1/1026 using a belt or cable
• CPC Class Codes: H04N 2201/0436 Scanning a picture-bearing surface lying face up on a support H04N2201/0434 takes precedence; using cylindrical picture bearing surfaces H04N1/06; with manual scanning H04N1/107

Abstract

A document scanner, such as a check scanner, is disclosed. The document scanner includes a document bed having a document positioning surface, the document positioning surface arranged to receive a document placed thereon. The document scanner further includes a scanning module slidably movable across the document positioning surface, the scanning module including one or more data capture devices arranged to contact a document during a scanning process. The document scanner also includes a motor operatively connected to the scanning module, the motor configured to move the scanning module across the document positioning surface during the scanning process.

Claims

1. An apparatus, comprising:

a workpiece bed having a workpiece positioning surface;

a scanning module slidably-coupled to the workpiece bed by a support assembly to permit movement of the scanning module across the workpiece positioning surface, wherein the scanning module includes

at least one workpiece information obtaining module that obtains information pertaining to a workpiece disposed upon the workpiece positioning surface, wherein the workpiece is composed of a financial document, wherein the at least one workpiece information obtaining module is composed of

a contact image sensor module that generates an image of the financial document, and

a magnetic ink character recognition module that generates a signal by magnetically reading a plurality of characters printed upon the financial document in magnetic ink; and

a linear displacement mechanism connected to the scanning module by way of the support assembly, wherein the linear displacement mechanism drives sliding movement of the scanning module relative the workpiece positioning surface at a driven speed within a speed range, wherein the speed range is bound by an upper speed limit and a lower speed limit, wherein the driven speed being;

a) higher than the upper speed limit of the speed range results in;

an unusable image generated by the contact image sensor,

b) lower than the lower speed limit of the speed range results in;

an unusable signal generated by the magnetic ink character recognition module, and

c) within the speed range results in both of;

a usable image generated by the contact image sensor, and

a usable signal generated by the magnetic ink character recognition module.

2. The apparatus according to claim 1, wherein the support assembly includes

a first sub-assembly including:

a first mounting bracket connected proximate to a first end of the workpiece bed,

a second mounting bracket connected proximate to a second end of the workpiece bed, and

a bar having a first end and a second end, wherein the first end of the bar is supportably-connected to the first mounting bracket, wherein the second end of the bar is supportably-connected to the second mounting bracket.

3. The apparatus according to claim 2, wherein the support assembly further includes

a second sub-assembly including:

a first flanged pulley connected proximate to the first end of the workpiece bed,

a second flanged pulley connected proximate to the second end of the workpiece bed, and

a belt connecting the first flanged pulley to the second flanged pulley.

4. The apparatus according to claim 3, wherein the support assembly further includes

a third sub-assembly that connects the first sub-assembly to the second sub-assembly, wherein the third sub-assembly includes:

a slider bracket extending from the scanning module, wherein the slider bracket includes a first aperture and a second aperture, wherein the bar extends through the first aperture and the second aperture for slidably-coupling the slider bracket to the bar, and

a tab member extending from the slider bracket, wherein the tab member is connected to the belt.

5. The apparatus according to claim 4, wherein the linear displacement mechanism is connected to one of the first flanged pulley and the second flanged pulley for rotating one of the first flanged pulley and the second flanged pulley in one of a clockwise direction and a counter-clockwise direction for causing movement of the belt in one of a forward direction and a reverse direction that results in one of a forward movement and a rearward movement of all of:

the tab member, the slider bracket and the scanning module.

6. The apparatus according to claim 1 further comprising:

a plurality of workpiece registration portions extending away from the workpiece positioning surface, wherein the plurality of workpiece registration portions include at least;

a first row of registration portions, and

a second row of registration portions that is arranged substantially perpendicular with respect to the first row of registration portions.

7. The apparatus according to claim 1 further comprising

an enclosure connected to an underside of the workpiece bed, and

a printed circuit board supported by the enclosure, wherein the circuit board includes hardware that maintains the driven speed of the scanning module within the speed range.

8. The apparatus according to claim 7, wherein the hardware includes

a MICR signal processing module that is communicatively-coupled to the magnetic ink character recognition module,

a CIS signal processing module that is communicatively-coupled to the contact image sensor module, and

a control module that is communicatively-coupled to both of the MICR signal processing module and the CIS signal processing module, wherein the control module is communicatively-coupled to the linear displacement mechanism, wherein the control module contains control logic and programmed data parameters related to the speed range.

9. The apparatus according to claim 8, wherein the driven speed of the scanning module results in the MICR signal processing module receiving a MICR feedback signal from the magnetic ink character recognition module, wherein the driven speed of the scanning module results in the CIS signal processing module receiving a CIS feedback signal from the contact image sensor module, wherein the control module receives a conditioned MICR feedback signal from the MICR signal processing module and a conditioned CIS feedback signal from the CIS signal processing module, wherein the control logic of the control module outputs a speed adjustment feedback signal to the linear displacement mechanism for maintaining the driven speed of the scanning module within the speed range.

10. A method, comprising:

arranging a workpiece composed of a financial document upon a workpiece positioning surface of a workpiece bed;

moveably-arranging a scanning module upon a support assembly that is connected to the workpiece bed; and

utilizing a linear displacement mechanism for driving the scanning module relative to;

the support assembly, the workpiece bed and the financial document, wherein, during the driving the scanning module step;

utilizing a contact image sensor module arranged within the scanning module for generating an image of the financial document, and

utilizing a magnetic ink character recognition module arranged within the scanning module for

generating a signal by magnetically reading a plurality of characters printed upon the financial document in magnetic ink,

wherein the utilizing the linear displacement step further comprises the step of

driving the scanning module at a driven speed within a speed range, wherein the speed range is bound by an upper speed limit and a lower speed limit, wherein, if the driven speed is;

a) higher than the upper speed limit of the speed range, the contact image sensor module generates;

an unusable image,

b) lower than the lower speed limit of the speed range, the magnetic ink character recognition module generates;

an unusable signal, and

c) within the speed range;

the contact image sensor module generates a usable image, and

the magnetic ink character recognition module generates a usable signal.

11. The method according to claim 10 further comprising the step of

arranging the support assembly to include:

a first sub-assembly including;

a first mounting bracket connected proximate to a first end of the workpiece bed, a second mounting bracket connected proximate to a second end of the workpiece bed, and a bar having a first end and a second end, wherein the first end of the bar is supportably-connected to the first mounting bracket, wherein the second end of the bar is supportably-connected to the second mounting bracket;

a second sub-assembly including;

a first flanged pulley connected proximate to the first end of the workpiece bed, a second flanged pulley connected proximate to the second end of the workpiece bed, a belt connecting the first flanged pulley to the second flanged pulley; and

a third sub-assembly that connects the first sub-assembly to the second sub-assembly, wherein the third sub-assembly includes;

a slider bracket extending from the scanning module, wherein the slider bracket includes a first aperture and a second aperture, wherein the bar extends through the first aperture and the second aperture for slidably-coupling the slider bracket to the bar, a tab member extending from the slider bracket, wherein the tab member is connected to the belt, wherein the linear displacement mechanism is connected to one of the first flanged pulley and the second flanged pulley.

12. The method according to claim 11 further comprising the step of

utilizing the linear displacement mechanism for

rotating one of the first flanged pulley and the second flanged pulley in one of a clockwise direction and a counter-clockwise direction for

causing movement of the belt in one of a forward direction and a reverse direction for

causing one of a forward movement and a rearward movement of all of:

the tab member, the slider bracket and the scanning module.

13. The method according to claim 10 further comprising the step of:

arranging a plurality of workpiece registration portions that extend away from the workpiece positioning surface, wherein the plurality of workpiece registration portions are arranged to include at least;

a first row of registration portions and a second row of registration portions, wherein the second row of registration portions are arranged substantially perpendicularly with respect to the first row of registration portions.

14. The method according to claim 10 further comprising the step of:

connecting an enclosure to an underside of the workpiece bed, and

supportably-connecting a printed circuit board to the enclosure, wherein the circuit board includes hardware for

maintaining the driven speed of the scanning module within the speed range.

15. The method according to claim 14, wherein the hardware includes:

a MICR signal processing module, a CIS signal processing module and a control module, wherein the method further comprises the steps of

communicatively-coupling the MICR signal processing module to the magnetic ink character recognition module,

communicatively-coupling the CIS signal processing module to the contact image sensor module,

communicatively-coupling the control module to both of the MICR signal processing module and the CIS signal processing module, and

communicatively-coupling the control module to the linear displacement mechanism, wherein the control module contains control logic and programmed data parameters related to the speed range.

16. The method according to claim 15, wherein, responsive to the driven speed of the scanning module, further comprising the steps of:

the MICR signal processing module receiving a MICR feedback signal from the magnetic ink character recognition module; and

the CIS signal processing module receiving a CIS feedback signal from the contact image sensor module;

the control module receiving

a conditioned MICR feedback signal from the MICR signal processing module, and

a conditioned CIS feedback signal from the CIS signal processing module that results in the control logic of the control module

sending a speed adjustment feedback signal to the linear displacement mechanism for

maintaining the driven speed of the scanning module within the speed range.