1979-06-26
1981-08-11
Atkinson, Charles E.
Excavating
375 34, G06F 1100, H04B 1700
Patent
active
042837863
ABSTRACT:
A digital transmission system in which an information signal is converted into digital data in response to a sampling pulse train, the digital data comprising a plurality of bits differing in significance from each other. Data conversion, such as complementing or reversing the order of the plurality of bits, is performed in integral multiples of every other sampling period and the converted data is transmitted over the digital transmission system to a receiver where it is reconverted back into the original digital data.
REFERENCES:
patent: 3471830 (1969-10-01), McRae et al.
patent: 3657699 (1972-04-01), Rocher et al.
patent: 3836655 (1974-05-01), McRae
patent: 4041453 (1977-08-01), Umeda et al.
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