Patent ID: 8766852

Claim:
An electronic device, comprising: a first antenna having a transmitting wireless signal function and disposed on a first side of the electronic device; a second antenna disposed on a second side of the electronic device; a first sensor adapted to detect whether a first object exists around the first antenna and generate a first sensing signal according to a detecting result; a second sensor adapted to detect whether a second object exists around the second antenna and generate a second sensing signal according to a detecting result; a signal processing module adapted to generate a first control signal according to the first sensing signal, wherein when the signal processing module simultaneously receives the first sensing signal and the second sensing signal, the signal processing module generates a power adjusting signal so as to reduce a power of the first antenna or the second antenna transmitting a wireless signal; and an antenna control module adapted to switch the transmitting wireless signal function from the first antenna to the second antenna according to the first control signal.