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:
Sep. 02, 2014
Filed:
Sep. 21, 2011
Soumen Chakraborty, Bangalore, IN;
Rishi Ranjan, Foster City, CA (US);
Kamlesh Rath, San Ramon, CA (US);
Manish Airy, Bangalore, IN;
Soumen Chakraborty, Bangalore, IN;
Rishi Ranjan, Foster City, CA (US);
Kamlesh Rath, San Ramon, CA (US);
Manish Airy, Bangalore, IN;
Broadcom Corporation, Irvine, CA (US);
Abstract
Systems and methods for regulating transmit power in a mobile station to comply with SAR limits are disclosed. A mobile station may include a processor, transmitter, and proximity sensor. The transmitter is configured to operate at a transmit power controlled by a first transmit power limit. The proximity sensor identifies how close the mobile station is to a human head. A transmit power regulator, implemented on the processor, determines the cumulative energy radiated by the transmitter over a specified number of frames. If the cumulative energy exceeds an energy limit based on a SAR limit, and the proximity sensor indicates that the mobile station is close to a human head, the transmit power regulator may decrease the transmit power limit of the transmitter.