The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1998
Filed:
Jan. 02, 1996
Applicant:
Inventors:
H Sprague Ackley, Seattle, WA (US);
Paul S Swanson, Colorado Springs, CO (US);
Assignee:
Intermec Corporation, Everett, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; H01S / ;
U.S. Cl.
CPC ...
250205 ; 372 29 ; 372 38 ;
Abstract
Methods of controlling the power level of a pulsed laser beam being used to scan barcodes and the like in order to increase the depth-of-field. The pulses may comprise a plurality of pulses above and below a maximum legal power level so that, on average, the power output is below the legal limit. The sensor may be monitored for no-signal and over-signal conditions and the power of the laser beam adjusted accordingly.