Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-10-26
2009-02-10
Dao, Minh D (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S422100, C455S440000, C455S013400, C455S513000, C370S335000, C370S342000
Reexamination Certificate
active
07489949
ABSTRACT:
A control method for a high-frequency radio equipment and a high-frequency radio equipment system in spread spectrum radio data communication are provided which are interference-tolerant and can maintain transmission quality with improved receiving sensitivity.A high-frequency radio equipment system provided with, in a base station, an antenna part comprised by a plurality of antennas, a radio part for amplifying a received signal, band-limiting and down-converting it to an intermediate frequency, a signal processing part for carrier-demodulating the signal inputted from the radio part, demodulating the signal which was despread-spectrum processed and synchronized and decoding the received data, an antenna control part for determining a code error rate for the received data inputted from the signal processing part, forming an appropriate antenna pattern based on the error rate and outputting a signal for controlling an antenna switching part according to the information of the antenna pattern.
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Dao Minh D
Jacobson & Holman PLLC
Nihon Dempa Kogyo, Ltd.
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