Automatic Realignment of Bar Code Scanner
Original Publication Date: 1980-Nov-01
Included in the Prior Art Database: 2005-Feb-14
In bar code decoding, the scanner is focused on a small portion of the bar code to be read and then moved relative to the bar code. During reading operations, the alignment of the scanner relative to the bar code may be lost, e.g., due to tolerances, or the information read by the scanner may be wrong, e.g., due to ink spread. Means must therefore be provided for recentering the scanner properly relative to the bar code.