Patent ID: 7496356
Filing Date: 2009-02-24
Classification: H04M

Abstract:
1. A radio communication apparatus for use in a radio communication system having a radio link between a base station and the radio communication apparatus, the apparatus comprising: a receiver configured to receive a first audio signal from the radio link; a microphone configured to generate a second audio signal; an input unit configured to input a first identification number; a PCM codec configured to code the second audio signal generated by the microphone into a PCM signal; a speech codec configured to decode the first audio signal received by the receiver into a first character signal and to code the PCM signal output from the PCM codec into a second character signal; a demodulator configured to demodulate the first character signal into character data; a display unit configured to display the character data from the demodulator; a transmitter configured to transmit the second character signal from the speech codec to the radio link; a processor configured to detect whether the first identification number is included in the first audio signal received by the receiver; an ID table configured to store a second identification number; and a control unit configured to execute first control and second control, the first control checking whether or not the first identification number detected by the processor belongs to the second identification number stored in the ID table, the first control further displaying the character data corresponding to the first audio signal in the display unit when the detected first identification number belongs to the second identification number, the second control checking whether or not the first identification number is inputted by the input unit, the second control further transmitting the second character signal corresponding to the second audio signal from the transmitter to the radio link when the first identification number inputted by the input unit belongs to the second identification number stored the ID table.