US 9,871,544 B2 · Specific absorption rate mitigation

Abstract

Specific Absorption Rate (SAR) mitigation techniques are described herein. In one or more embodiments, a host device is configured to implement a SAR mitigation algorithm to maintain compliance with regulatory requirements. The SAR mitigation algorithm may be configured to control radio frequency transmissions (e.g., output levels) for one or more antennas of the host device based at least in part upon an arrangement of an accessory device relative to the host device. By so doing, the SAR mitigation algorithm accounts for adverse influences that accessory devices may have upon radio frequency (RF) emissions from the antennas in some arrangements. The SAR mitigation algorithm may be further configured to account for user presence indications along with accessory device arrangements and adapt transmission power levels accordingly.

Claims19

Dependent claims

A computing device comprising:

one or more antennas configured to provide wireless communication functionality;
one or more hardware elements configured to implement a specific absorption rate manager module operable to:
instantiate a SAR mitigation algorithm for a host device that is dependent upon user presence indications and arrangement of an accessory device connectable to the computing device relative to the computing device;
ascertain indications of user presence with respect to the one or more antennas;
detect the arrangement of the accessory device relative to the computing device;
and
apply the SAR mitigation algorithm to control radio frequency transmissions for the one or more antennas of the computing device according the ascertained user presence indications and the detected arrangement of the accessory device, including referencing a mapping data structure to determine antenna operational parameters associated with the arrangement that is detected.

4 more elements

A computing device to control one or more antennas of the computing device configured to provide wireless communication functionality comprising:

a processing system;
an interface to communicatively and physically couple different accessory devices to the computing device;
multiple antennas to provide wireless communication functionality;
one or more computer readable media comprising instructions that, when executed via the processing system, implement a specific absorption rate (SAR) mitigation algorithm configured to perform operations to control operations of the multiple antennas in dependence upon user presence indications and arrangement of an accessory device connectable to the computing device relative to the computing device comprising:
ascertaining indications of user presence with respect to the one or more antennas;
detecting the arrangement of the accessory device relative to the computing device;
and
identifying antenna control actions indicated for the one or more antennas with respect to the ascertained indications of user presence and the detected arrangement by referencing a mapping data structure configured to associate antenna operational parameters and corresponding control actions with accessory device arrangements for multiple different accessory devices.

5 more elements

Dependencies are inferred from the claim text.

Specific absorption rate mitigation

Life of this patent

Specific absorption rate mitigation

Life of this patent

Abstract

Claims19