IP Library Granted Patent US 6,499,661
Granted Patent Utility
US 6,499,661 · App. 09/499,529

MULTI-FOCAL LASER SCANNING BAR CODE SYMBOL READING SYSTEM EMPLOYING A SCAN DATA SIGNAL PROCESSOR HAVING A VARIABLE PASS-BAND FILTER STRUCTURE WITH FREQUENCY CHARACTERISTICS CONTROLLED BY DETECTING THE FOCAL DISTANCE OF THE LASER SCANNING BEAM PRODUCING THE ANALOG SCAN DATA SIGNAL BEING PROCESSED BY SAID DATA SIGNAL PROCESSOR

Inventors: Mark Lucera, Frank Check, C. Harry Knowles, Xiaoxun Zhu, LeRoy Dickson
Patented Case View Patent ↗
Granted: Dec 31, 2002 Filed: Feb 10, 2000
Inventors
Mark Lucera
Frank Check
C. Harry Knowles
Xiaoxun Zhu
LeRoy Dickson
Assignee (at issue)
METROLOGIC INSTRUMENTS, INC.

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Quick Facts
Patent No.
US 6,499,661
App. No.
09/499,529
Filed
2000-02-10
Granted
2002-12-31
Kind
B1