Optical data packet compressor/decompressor

Details Optical data packet compressor/decompressor Optical data packet compressor/decompressor

1992-11-13

1994-08-16

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359135, 370109, 25022712, H04J 1408

Patent

active

053391861

ABSTRACT:
Apparatus for time modifying, or expanding, a serial optical signal that comprises a plurality of light pulses located in bit cells. A plurality of light reflectors establish a plurality of optical delay paths, one path for each light pulse. Each path provides a progressively greater delay time. A scanner operates in synchronism with the bit cell frequency of the optical signal, and sequentially switches each light pulse to the input of a corresponding delay path. A serial output is associated with the output of the plurality of delay paths, and operates to assemble the output pulses into an output optical signal having a like plurality of light pulses. The time separation or bit cell frequency of the output optical signal is greater than the bit cell frequency of the input optical signal. The apparatus operates in the reverse manner to provide time compression of an optical signal, and provides an output optical signal having a shorter bit cells interval than the bit cell interval of the input optical signal.

REFERENCES:
patent: 3506834 (1970-04-01), Buchsbaum et al.
patent: 3521068 (1970-07-01), Armstrong et al.
patent: 3597047 (1971-08-01), Carbrey
patent: 3838278 (1974-09-01), Duguay et al.
patent: 3892468 (1975-07-01), Duguay
patent: 4090779 (1978-05-01), McNaney
"Time Multiplexing System", Kagan, M. R., IBM Technical Disclosure Bulletin, vol. 13, No. 9, Feb., 1971. p. 2484.

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