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:
Jul. 30, 1996
Filed:
Sep. 30, 1994
Franklin B de Vall, Boulder, CO (US);
Palomar Technologies Corporation, Carlsbad, CA (US);
Abstract
An RF transponder couples the outer end of a coiled antenna winding to a transponder circuit located inside the winding by a lead line that crosses over the winding turns and is separated from the winding by a dielectric material. The width of the lead line is substantially greater than the antenna line width, yielding capacitances at the cross-over sites that establish a resonant frequency for communicating with the transponder circuit at a predetermined RF frequency. An optional discrete capacitor can also be used to boost the capacitance to a desired level. All of the transponder components are formed on one side of a flexible substrate, the opposite side of which is coated with an adhesive that is covered by a peel-off sheet, allowing the transponder to be affixed to packages as part of a package identification system.