发明名称 WIRELESS COMMUNICATION DEVICE FOR SETTING AUTOMATIC FREQUENCY CHANNEL AND TONE FREQUENCY BY INPUT OF NUMBER AND METHOD THEREFOR
摘要 PURPOSE: A wireless communication device for setting an automatic frequency channel and a tone frequency by the input of a number and a method therefor are provided to be convenient in use by automatically setting a frequency channel when a specific numerical code. CONSTITUTION: A filter and amplifying unit(80) amplifies a receiving information signal through a duplexer unit(60) and filters only a necessary band. A mixer(90) mixes a receiving signal through the filter and amplifying unit(80) with a phase synchronous signal outputted from a local oscillator(85). A demodulating unit(95) demodulates a signal outputted from the mixer(90) and supplies the demodulated signal to a speaker. A receiving tone squelch circuit(98) separates a voice signal from the output of the demodulating unit(95). A transmission modulating unit(50) synthesizes the receiving signal with a transmitting tone squelch frequency from the receiving tone squelch circuit(98), generates a transmission modulating signal, and modulates the transmission modulation signal. A controller(20) converts a code inputted from a code input unit(10) into a frequency and tone squelch code. A memory unit(30) stores coded data of frequency channel data selected by the controller(20) and data corresponding to the tone squelch code at a uniform address. A display unit(40) displays a frequency set by the controller(20).
申请公布号 KR20020022860(A) 申请公布日期 2002.03.28
申请号 KR20000055391 申请日期 2000.09.21
申请人 AHN, HONG EUI;KIM, KANG OK;LEE, IN HEE;PARK, SOOK 发明人 LEE, IN HEE
分类号 H04B1/38;(IPC1-7):H04B1/38 主分类号 H04B1/38
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