System for converting binary signals into shorter balanced terna

Details System for converting binary signals into shorter balanced terna System for converting binary signals into shorter balanced terna

1974-12-30

1977-01-11

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

325 38A, 178 68, H04L 300

Patent

active

040030415

ABSTRACT:
A system for converting multi-unit 1 and 0 bit binary code signals into one less unit multi-unit 0, + and - bit ternary code signals with a D.C. (direct current) component and having the same number of 0-bits or units in each signal. This conversion is accomplished by dividing each binary word code or signal into two groups of units or bits, converting one group to form a balance code with one less unit or bit than the binary code and a constant number of 0-bits, and converting the other part of each binary word for controlling the conversion and distribution of the + and - bits from the 1-bits in the code words of the first group. In the event there are more + bits than - bits or vice versa in a code word, an inverter is provided for inverting the + and - bits in the next word containing the same unbalance of + and - bits, so that any D.C. component produced by such an unbalance in one word will be eliminated or counterbalanced by inverting the next following word with the same unbalance.

REFERENCES:
patent: 2518405 (1950-08-01), van Duuren
patent: 3599205 (1971-08-01), VAN Duuren
patent: 3631463 (1971-12-01), Murphy
patent: 3783383 (1974-01-01), Forster et al.
patent: 3863025 (1975-01-01), Gonsewski et al.
patent: 3866147 (1975-02-01), De Couvreur et al.

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