Patent ID: 7314175

Claim:
A bar code scanner, comprising: a collection of optical components for generating a scan pattern comprising a plurality of scan lines, each of the plurality of scan lines being traced by a scan beam that moves as a rotating spinner rotates in the path of a laser beam from a starting rotational position associated with the start of the scan line to an ending rotational position associated with the end of the scan line, each of the plurality of the scan lines being associated with starting and ending rotational positions of the spinner differing from those associated with the other scan lines of the scan pattern; and a detection and decoding module for using light scattered from a bar code by transection of the bar code by a scan line to decode the bar code, the detection and decoding module being operative to assemble bar code information representing multiple partial transections of the bar code by the scan line, the detection and decoding module being operative to receive information identifying a scan line transecting the bar code and to assemble bar code information representing successive partial transections of the bar code by repeated occurrences of the same scan line of the plurality of scan lines as the repeated occurrences of the same scan line are generated by repeated sequential rotations of the spinner from the same starting rotational position to the same ending rotational position, in order to collect and assemble the bar code information.