Patent ID: 7587195

Claim:
An apparatus for wireless communications, comprising: a wireless receiver for receiving a wireless signal; and a controller connected to said wireless receiver for processing the received signal; said wireless receiver comprising: a timer for defining time at which operation of said controller is started or stopped; a received strength signal generator for detecting received wave strength of the wireless signal received by said wireless receiver periodically at a time set in said timer, and for producing a strength signal indicating the received wave strength; a determination circuit for comparing the strength signal with a predetermined value, and for determining whether or not the strength signal indicates that the received wave strength is higher than the predetermined value; and a connecting circuit for making said controller operative when a result of determination of said determination circuit indicates that the received wave strength is higher than the predetermined value, and for sending received data demodulated from the received signal by said wireless receiver to said controller, said controller being operated when the predetermined value is set in said wireless receiver and when the received wave strength exceeds the predetermined value to process the received data.