发明名称 Transceiver employing direct sequence spread spectrum techniques
摘要 A transceiver for transmitting and receiving digital data is disclosed. The transceiver employs direct sequence spread spectrum communications techniques for reducing interference among multiple users in a communications network environment. Each transceiver has a transmitter for locking a digital bit stream to a predetermined spread spectrum chip sequence and carrier signal. Frequency of the carrier signal and the chip sequence. Both the carrier signal, the chip sequence and the bit stream rate are derived from an integrally related to an accurate reference frequency to facilitate rapid acquisition and decoding of the signal by another transceiver. The transceiver also has a receiver portion for acquiring and decoding a transmitted and direct sequence spread spectrum signal to recover the digital bit stream using the spread spectrum chip sequence and carrier signal.
申请公布号 US4979183(A) 申请公布日期 1990.12.18
申请号 US19890328058 申请日期 1989.03.23
申请人 ECHELON SYSTEMS CORPORATION 发明人 COWART, BROOKS
分类号 H04B1/707 主分类号 H04B1/707
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