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Automatic Character Reader With Built-In Test Circuitry

IP.com Disclosure Number: IPCOM000047544D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Barz, RJ: AUTHOR [+2]

Abstract

An analog signal generator 10 is provided in an automatic character recognition system 11, such as a bank check reader/sorter, to enable diagnostic testing of the system logic without the necessity to actually process a series of test documents past read head 12. Document processor 11 includes a document path 13 along which documents are passed to a series of sort bins 14. A magnetic read head 12 senses analog signals from magnetic ink characters on the documents to produce characteristic analog waveforms delivered to recognition logic 15. Computer 16 receives the information as recognized by logic 15 and controls sorter 14 to place documents in pockets in accordance with the information read.

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Automatic Character Reader With Built-In Test Circuitry

An analog signal generator 10 is provided in an automatic character recognition system 11, such as a bank check reader/sorter, to enable diagnostic testing of the system logic without the necessity to actually process a series of test documents past read head 12. Document processor 11 includes a document path 13 along which documents are passed to a series of sort bins 14. A magnetic read head 12 senses analog signals from magnetic ink characters on the documents to produce characteristic analog waveforms delivered to recognition logic 15. Computer 16 receives the information as recognized by logic 15 and controls sorter 14 to place documents in pockets in accordance with the information read. To test the proper performance of recognition logic 15, or to diagnose problems, an analog signal generator 10 is provided which, under the control of an operator keyboard station 17, will produce analog signals similar to those generated by read head 12. The recognition logic 15 thus can be tested without actually passing documents past read head 12. The correctness of the recognition logic operation can be tabulated in the computer 16 and/or displayed at terminal 17. The analog signals can be made variable to represent extra weak or strong or otherwise unclear input character waveforms, as required, for complete diagnosis.

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