| 摘要 |
PURPOSE: A system for transceiving wireless multi-channels and a method therefor are provided to automatically receive a transmission signal of the nearest transmitter among many transmitters when the plural transmitters are simultaneously operated, and to perform an automatic handoff process, so that a user does have to separately operate a conversion switch. CONSTITUTION: More than one transmitter comprises as follows. An input signal processing device(130) inputs a signal from an outer device. A modem(120) multiplexes the input signal, and forms frames of each channel including preambles by a designated synchronous code. An RF module(110) transmits the consecutively delivered frames at a specific frequency, and scans entire available frequencies. A CPU(140) controls each unit. More than one receiver comprises as follows. An RF module receives a signal of the transmitter. A modem demodulates the signal. A CODEC decodes the demodulated signal. An output device outputs the signal. A receiver user interface selects a channel. A CPU measures RSSI values of synchronous signals, obtains a weighted mobile average value, commands a selected signal to be transmitted to the modem, and commands a handoff signal to be received in the modem. |
