Optical transceiver and optical communications network for both of optical fiber transmission and free space transmission
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United States of America Patent
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Sep 28, 1999
Grant Date -
N/A
app pub date -
Oct 18, 1996
filing date -
Oct 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cable network is constituted such that interconnectable, passive 4-terminal star couplers are connected to each other via optical fiber cables and a bi-directional optical relay amplifier. Cells each constituted by using free space transmission light are integrated by the cable network. An optical signal transmitted from or directed to a mobile station in a cell is linked to the cable network via an optical relay amplifier, which provides interface between free space transmission light and guided light. Even in a case where a barrier interposed between two mobile stations prevents a direct communication between those stations, a collision between those stations can be detected by a collision detection proxy server having functions of collision detection according to the principle of code transition rule violation and jamming signal transmission. A communication between those stations can be realized by connecting, to the cable network, a relay proxy server having a packet relay and transmitting function.
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