Receiver for optical communication

Details Receiver for optical communication Receiver for optical communication

1984-03-16

1986-04-08

Orsino, Jr., Joseph A.

Multiplex communications

Wide area network

Packet switching

455619, H04B 900

Patent

active

045817316

ABSTRACT:
A receiver is applied to optical communication using an optical pulse signal carrying data which is cyclically updated. The optical signal is converted to a corresponding electrical pulse signal. The data is extracted from the electrical signal. The extracted data from successive cycles are compared. In response to the result of comparison between the data, a determination is made as to the number of cycles in which the extracted data is at a given value. When the determined number of cycles reaches a variable preset number, a previously used data value is replaced by the given value. The amplitudes of the electrical signal pulses are compared with a reference level. The preset number is varied in accordance with the result of comparison between the pulse amplitudes and the reference level.

REFERENCES:
patent: 4027152 (1977-05-01), Brown et al.
Pettit, J. W., "Self-Level Adjustment in Optical Detector System", IBM Technical Disclosure Bulletin, vol. 24, No. 4, Sep. 1981.

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