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Method of Storing Bar Code Image Data and Printing Bar Codes

IP.com Disclosure Number: IPCOM000061481D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Knight, TA: AUTHOR [+2]

Abstract

Bar code image data is stored for printing or display in response to encoded externally supplied instruction data. The bar code image data is stored as a series of bar/space image bits for each character comprising the bar code. The images are addressed by matching a header byte with each character to be encoded to accommodate different numbers of code points available in different bar codes. Different bar code sets have different characteristics, such as different numbers of bars and spaces per character, different width bars and spaces, and characters of different length, and some bar codes represent numeric characters only while others have alphanumeric and special characters, etc.

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Method of Storing Bar Code Image Data and Printing Bar Codes

Bar code image data is stored for printing or display in response to encoded externally supplied instruction data. The bar code image data is stored as a series of bar/space image bits for each character comprising the bar code. The images are addressed by matching a header byte with each character to be encoded to accommodate different numbers of code points available in different bar codes. Different bar code sets have different characteristics, such as different numbers of bars and spaces per character, different width bars and spaces, and characters of different length, and some bar codes represent numeric characters only while others have alphanumeric and special characters, etc. The present method constructs bar code symbols by selecting the type of bar code to be utilized, performing functions that are unique to the selected bar code, performing functions that are common to the selected bar code and other bar codes, and performing any additional steps, such as printing man-readable characters. Any bar code character is a series of bars and spaces of varying widths. To print the data in dot matrix format, the data in the bar code character image is encoded in terms of the number of rows or columns that successive bars and spaces occupy when printed. Data is assembled with a header of a predetermined number of bytes that define the format for the bar code images, and it is followed by the specific...