SIGNAL DETECTION ARRANGEMENT

摘要

Described is an arrangement including a receiver (605) and an enveloped detection arrangement (540) . The receiver receives radio frequency signals generated according to a predetermined wireless communication protocol . The envelope detection arrangement screens the radio frequency signals for a predetermined signal which utilizes the predetermined wireless communication protocol and has a predetermined envelope sequence. Upon detection of the predetermined signal, the arrangement transmits a further signal to a computing device (600) coupled thereto. The further signal is an instruction for the computing device to wake up.