Patent ID: 6366787
Filing Date: 2002-04-02
Classification: H04M,H04W

Abstract:
A cellular telephone comprising:a radio communication unit for carrying out radio communications with a base station; a serial data communication connection unit directly connected to an information processing apparatus, for transmitting/receiving a signal to/from the information processing apparatus; a controlling unit; a digital data communication processing unit for encoding/decoding input/output communication data and for interpreting a command from the information processing apparatus into a command recognizable by the controlling unit; and a switching unit interposed between the radio communication unit and the digital data communication processing unit, wherein the controlling unit controls the radio communication unit and the switching unit and is responsive to the command interpreted by the digital data communication processing unit to control the radio communication unit to issue a call for line request, and wherein the digital data communication processing unit provides a result code indicative of successful line connection to the information processing device, thereby establishing a data communication channel between the radio communication unit and the information processing device via a communication path including the serial data communication connection unit, the digital data communication processing unit, and the switching unit.