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:
Dec. 28, 1999
Filed:
Sep. 26, 1997
Applicant:
Inventor:
John W Murphy, Cedar Rapids, IA (US);
Assignee:
Rockwell Science Center, Inc., Thousand Oaks, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; H04B / ;
U.S. Cl.
CPC ...
455562 ; 455562 ; 455101 ; 455132 ; 455272 ; 342360 ; 342423 ; 34235708 ; 34235712 ;
Abstract
A method and apparatus is provided for calibrating and detecting faults in a receiver having a multi-element antenna. The method includes the steps of selecting an antenna element of the multi-element antenna and transmitting a signal through the selected element. The method further includes the steps of detecting the transmitted signal through at least one antenna element of a remaining set of elements of the multi-element antenna and calculating a phase shift for the at least one antenna element of the remaining set of elements.