Packet-switched spread-spectrum system

Details Packet-switched spread-spectrum system Packet-switched spread-spectrum system

1996-08-02

1999-01-19

Pham, Chi H.

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

370335, 375200, 375207, 375305, H04B 7216, H04B 1500

Patent

active

058621334

ABSTRACT:
A system and method for encoding and transmitting data with a spread-spectrum packet-switched system. Data to be transmitted by a packet transmitter are encoded for privacy and to restrict intelligent receipt of the data to the intended recipient. The encoded data is demultiplexed into sub-data-sequence signals which are spread-spectrum processed and then combined as a multichannel spread-spectrum signal. The multichannel spread-spectrum signal is concatenated with a header to output a packet-spread-spectrum signal which is transmitted over radio waves to a packet receiver. The packet receiver obtains timing for the multichannel spread-spectrum signal from the header. The multichannel spread-spectrum signal is then despread and multiplexed as received-encoded data. The received-encoded data is decoded by the intended recipient and stored in a receiver memory for output.

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