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:
Mar. 10, 1992
Filed:
Nov. 13, 1989
Applicant:
Inventors:
Assignee:
X-Cyte, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
3103 / ; 342 44 ;
Abstract
An apparatus for coupling energy into and out of a SAW device which can serve as a transponder in a 'passive interrogator label system'. The device includes a conductive loop deposited on the active surface of the piezoelectric substrate which is electrically connected at its ends to the two transducer terminals of the SAW. The conductive loop forms an inductive element for coupling energy into and out of the SAW device. The active surface of the device is protected by a non-conductive cover (e.g. glass) adhered to the surface.