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:
Sep. 11, 2001
Filed:
May. 23, 1997
Applicant:
Inventors:
Thomas Anthony Cofino, Rye, NY (US);
Daniel Joseph Friedman, Tarrytown, NY (US);
Kenneth Alan Goldman, Norwalk, CT (US);
Harley Kent Heinrich, Brewster, NY (US);
Assignee:
Intermec IP Corp., Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/00 ; G01S 1/374 ;
U.S. Cl.
CPC ...
H04B 7/00 ; G01S 1/374 ;
Abstract
A method of sending data from a base station to a passive RF tag and writing the data to a tag non-volatile memory which detects a “partial write”, where the tag voltage falls during the write process under the voltage sufficient to reliably write the tag non-volatile memory, is presented. The tag voltage is compared to a stable reference voltage during the time the tag memory is being written, and if the tag voltage falls below an acceptable level, a flag in the tag non-volatile memory is cleared.