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:
Feb. 25, 2014
Filed:
Dec. 01, 2011
Timothy J. Talty, Beverly Hills, MI (US);
James H. Schaffner, Chatsworth, CA (US);
Hyok Jae Song, Agoura Hills, CA (US);
Joseph S. Colburn, Malibu, CA (US);
Duane S. Carper, Davison, MI (US);
Timothy J. Talty, Beverly Hills, MI (US);
James H. Schaffner, Chatsworth, CA (US);
Hyok Jae Song, Agoura Hills, CA (US);
Joseph S. Colburn, Malibu, CA (US);
Duane S. Carper, Davison, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle or other host station includes first and second antennas, a fast semiconductor switch, a switching controller, and an RF receiver. The controller toggles the switch at a calibrated switching rate to selectively and alternately connect the first antenna to one of the RF receiver and a load having a calibrated impedance value. The first antenna may be a parasitic element in any embodiment using the load. The semiconductor switch may be a CMOS device or a Gallium Arsenide semiconductor switch. A switching control method for use in a vehicle or other host station having the first antenna, the second antenna, and the RF receiver includes transmitting a switching signal from the controller to the switch, and toggling the switch at a calibrated switching rate in response to the switching signal to selectively and alternately connect the first antenna to one of the RF receiver and the load.