Registers – Coded record sensors – Particular sensor structure
Patent
1995-11-06
1998-07-07
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235437, G06K 0710
Patent
active
057773106
ABSTRACT:
A bar code imaging system capable of accurately and efficiently reading a printed bar code that is partially damaged, distorted, or erased. The bar code imaging system comprises an imaging element adapted to receive light reflected from a bar code symbol and provide a two-dimensional image of the bar code symbol. The two-dimensional image is decoded into data representative of the bar code symbol. More particularly, code words in the bar code pattern are decoded along a path beginning at the start of the bar code and moving toward the end of the bar code. As each code word is decoded, the decoded data is stored in a memory. When an invalid code word is encountered, decoding continues along a path beginning at the end of the bar code and moving toward the beginning of the bar code, and the decoded data is stored in the memory with the previously decoded data. When an invalid code word is encountered, the scan path is moved, and decoding continues along the new scan path beginning at the last valid code word decoded while moving toward the end of the bar code.
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Liu Lingnan
Shimizu Mark Yukio
Hajec Donald T.
Intermec Corporation
Rodriguez Douglas X.
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