US 9,813,997 B2
Antenna coupling for sensing and dynamic transmission
Sean Russell Mercer, Issaquah, WA (US); and Charbel Khawand, Sammamish, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Corporation, Redmond, WA (US)
Filed on Jan. 10, 2014, as Appl. No. 14/152,529.
Prior Publication US 2015/0201385 A1, Jul. 16, 2015
Int. Cl. H04W 72/00 (2009.01); H04W 52/24 (2009.01); H04B 1/3827 (2015.01); H04B 17/00 (2015.01); H04W 72/04 (2009.01); H04W 52/36 (2009.01)
CPC H04W 52/245 (2013.01) [H04B 1/3838 (2013.01); H04B 17/0057 (2013.01); H04W 52/367 (2013.01); H04W 72/0473 (2013.01)] 20 Claims
OG exemplary drawing
11. A electronic device comprising:
a radiofrequency (RF) transmitter in the electronic device and being configured to transmit a carrier wave from the electronic device;
an RF receiver in the electronic device, the RF receiver separate from the RF transmitter and being configured to receive the carrier wave transmitted from the RF transmitter; and
a power detector coupled to the RF transmitter and the RF receiver, the power detector being configured to adjust transmission power of the RF transmitter responsive to detection of a change in signal strength of the carrier wave received by the RF receiver, the change in signal strength being influenced by proximity of a dielectric body to the RF transmitter.