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:
Apr. 22, 2014
Filed:
Nov. 19, 2009
William O. Camp, Jr., Chapel Hill, NC (US);
David R. Story, Holly Springs, NC (US);
Paul Futter, Cary, NC (US);
Gerard J. Hayes, Wake Forest, NC (US);
William O. Camp, Jr., Chapel Hill, NC (US);
David R. Story, Holly Springs, NC (US);
Paul Futter, Cary, NC (US);
Gerard J. Hayes, Wake Forest, NC (US);
Sony Corporation, Tokyo, JP;
Sony Mobile Communications AB, Lund, SE;
Abstract
The control of an antenna tuner for a portable electronic device includes closed loop tuning when sufficient transmit power is present. The closed loop tuning commences using a predetermined antenna tuner configuration for an operational band and device state. The closed loop tuning may be constrained by a tuning range associated with the predetermined antenna tuner configuration for the operational band and device state. Also, when transmit power is low or when a transceiver is in a receive only state, open loop tuning may be conducted by placing the antenna tuner in the predetermined (or default) configuration for the operational band and phone state.