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:
Jun. 09, 2009
Filed:
Aug. 09, 2005
Daniel F. Sievenpiper, Santa Monica, CA (US);
Hui-pin Hsu, Northridge, CA (US);
Timothy J. Talty, Beverly Hills, MI (US);
John Pasiecznik, Jr., Malibu, CA (US);
Daniel F. Sievenpiper, Santa Monica, CA (US);
Hui-Pin Hsu, Northridge, CA (US);
Timothy J. Talty, Beverly Hills, MI (US);
John Pasiecznik, Jr., Malibu, CA (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A control system and method for controlling switching between and among multiple antennas in a diversity antenna system comprising a radio head unit associated with a radio receiver; two or more antennas, either located in separate antenna modules or co-located in the same antenna module; a switch circuit; and a single cable. Control signals for controlling switching are provided as changes in a DC power supply signal carried on the single cable. In the case of multiple antenna modules, the radio head unit and the antenna modules are connected by the single cable using a daisy-chain architecture.