Method of initiating and terminating data transmission

摘要

Communication initiation or termination control is performed by detecting the existence/non-existence of a carrier or a special code contained in data transmitted in DECT data communication so that a communication slave unit is maintained in a sleeping state except when it is necessary to perform communication, thereby reducing power consumption. A communication terminal has a control unit (9), a communication initiation signal detector (12) which detects a carrier of transmitted data and informs a control section of a detection result, and a communication termination signal detector (13) which detects a carriage return code or an end-of-file code contained in transmitted data or received data at the end of the data and informs the control section of a detection result. Communication initiation or termination control is performed by an instruction from the control section according to information from the communication initiation signal detector or information from the communication termination signal detector. Data communication initiation or termination control is also performed by checking an ID code of the terminal contained in received data.