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:
Apr. 21, 2015
Filed:
Nov. 04, 2008
Dariusz J. Madej, Shoreham, NY (US);
Igor Vinogradov, Oakdale, NY (US);
Dariusz J. Madej, Shoreham, NY (US);
Igor Vinogradov, Oakdale, NY (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
An imaging system for electro-optically reading a symbol located within a range of working distances from the system, utilizes a solid-state imager for capturing return light from the symbol and for generating an electrical signal indicative of the captured return light, and a controller for decoding the electrical signal into data indicative of the symbol A memory stores a known set of values for a plurality of optical characteristics of the symbol, such as size and contrast characteristics of the symbol when the symbol lies in a restricted zone within the range of working distances. The controller is operative, after the symbol has been successfully decoded, for processing the size and contrast characteristics of the decoded symbol, and for determining that the decoded symbol has been successfully read within the restricted zone when each size and contrast characteristic lies within the known set of values stored by the memory.