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US 4,283,786 AGranted
Digital transmission system
OwnerShiro Okamurainventor
Life of this patent
Estimating the term…
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.
Claims7
A digital transmission system comprising:
- Means responsive to a sampling pulse, occurring during successive sampling periods, for encoding an information signal into a digital signal at each of said sampling periods, said digital signal including a plurality of bits differing in significance from each other;
- means for converting said digital signal at integral multiples of every other sampling period to produce a converted digital signal;
- means for transmitting said converted digital signal to receiving apparatus, said plurality of bits in each sampling period being transmitted in time-serial sequence;
- and
- means included in said receiving apparatus for reconverting said converted digital signal back into said digital signal.
2 more elements
Dependencies are inferred from the claim text.