Optical local area network employing microwave modulation...

Details Optical local area network employing microwave modulation... Optical local area network employing microwave modulation...

H - Electricity

04

J

325/1, 363/1.8

H04J 14/02 (2006.01) H04L 12/28 (2006.01) H04H 1/02 (2006.01)

Patent

CA 1249341

- 23 - AN OPTICAL LOCAL AREA NETWORK EMPLOYING MICROWAVE MODULATION TECHNIQUES Abstract The present invention relates to an optical communication system wherein the entire microwave frequency bandwidth of the optical source-to-detector system is subdivided into a plurality of non-overlapping frequency bands or channels, and each user transmits and/or receives information either (a) on a separate fixed one of the channels, (b) on a free channel selectively assigned via control signals transmitted on a separate control channel at the time of initiation of a communication, or (c) on a channel randomly selected at the receiver by an associated user to receive a particular program. The present optical communication system can be configured to simultaneously broadcast multiple programs over separate channels for random selection by each user, or to achieve local and/or external two-way communications with the associated system users.

518843

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