Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1995-08-10
1997-07-08
Negash, Kinfe-Michael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359167, 359110, 370521, 364514B, H04J 1408
Patent
active
056467583
ABSTRACT:
The present invention provides an optical time compression multiplexing transmission system which suppresses the influence of optical reflection by a simple configuration without degrading transmission efficiency. The present invention is a 1:n (n being a natural number) time division multiplexing point-to-multi-point optical time compression multiplexing transmission system which comprises a decision element for determining whether or not the receiving signal which is outputted from a receiving element is a regular signal, an initialization element for initializing the operation condition of the receiving element when a receiving signal is determined to not be a regular signal by the decision element. When a signal is determined to not be a regular signal by the decision element, because the initialization element initializes the operation condition of the receiving element, the abnormal operation of the receiving element which is abnormal due to optical reflection which occurs by reflection can be returned to normal operation in a minimum amount of time.
REFERENCES:
patent: 5327277 (1994-07-01), Van Der Plas et al.
patent: 5341365 (1994-08-01), Clarke
Fumio Mano et al., "A study on fast response AGC circuit for Passive Double Star optical subscriber systems", The Electronic Information Communication Society Meeting, B-602, pp. 4-62, 1991.
Kumozaki Kiyomi
Miki Noriki
Negash Kinfe-Michael
Nippon Telegraph and Telephone Corporation
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