Random access multiple user communication system
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United States of America Patent
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Apr 26, 1994
Grant Date -
N/A
app pub date -
May 18, 1992
filing date -
Sep 18, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frequency comb multiple access (FCMA) communications system in which address and message data are transmitted on a common channel to different users. The data transmitted are in the form of signatures, each of which consists of combined specific frequencies selected from a range of discrete frequencies available in the bandwidth of the common channel. Each signature corresponds to an address and to a data message directed to the address. This system does not require handshaking nor channel assignment. A transmitter and a receiver for the system are also disclosed.
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