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Laser code symbol scanning system with high-resolution 2-D scanning field steerable with 3-D scanning volume

  • US 6,457,646 B1
  • Filed: 09/17/1999
  • Issued: 10/01/2002
  • Est. Priority Date: 08/17/1994
  • Status: Expired due to Fees
First Claim
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1. A code symbol reading system comprising:

  • a first scanner for automatically scanning a laser beam and producing a first laser scanning pattern within a 3-D scanning volume for scanning a code symbol on an object located within said 3-D scanning volume, detecting the location of said code symbol within said 3-D scanning volume, and producing location specifying data indicative of said location of said code symbol; and

    a second scanner, being responsive to said location specifying data produced by said first scanner, for producing a second laser scanning pattern and moving said second laser scanning pattern within said 3-D scanning volume so as to automatically scan the region in which the code symbol is detected, and collecting scan data for decode processing.

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