Multilevel mate pair code compressor for codes expanded by the p

Details Multilevel mate pair code compressor for codes expanded by the p Multilevel mate pair code compressor for codes expanded by the p

1983-11-14

1985-09-17

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 34, 375 38, 375 96, 370 18, 340347DD, H03K 1324

Patent

active

045425159

ABSTRACT:
Multilevel code mates A and B expanded in accordance with the expression , b.sup.K and B=a.sup.K, b are compressed to a lobeless basic mate pair by repeatedly compressing corresponding code mate pairs in successive stages to provide diminishing codes of half the code length by amplifying the code mates by a predetermined amplification factor and then adding and subtracting the code mates in accordance with the expressions A.sub.i-1 =A.sub.i +B.sub.i.sup.K.sbsp.i and B.sub.i-1 =A.sub.i.sup.K.sbsp.i -B.sub.i where i is the i.sub.th compression stage and K.sub.i is the amplification factor applied to the codes A.sub.i and B.sub.i.

REFERENCES:
patent: 3461451 (1969-08-01), Gutleber
patent: 3519746 (1970-07-01), Gutleber
patent: 3634765 (1972-01-01), Gutleber
patent: 3751596 (1973-08-01), Tseng
patent: 4293953 (1981-10-01), Gutleber
patent: 4471342 (1984-09-01), Gutleber
patent: 4511885 (1985-04-01), Gutleber

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