Data transmission method and devices for practicing said method
AssigneeInternational Business Machines Corporation
InventorsJean L. Monrolin, Pierre Vachee
Life of this patent
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Abstract
Binary/ternary transmission process and device. Several trains of binary signals are time-multiplexed by using registers RG1 and SER to generate a first binary sequence L applied to an ENCODE unit which also receives a second binary sequence D and clock information CP. When the information of sequence L is at one binary level, the resulting signal is coded in bipolar code. When the information of sequence L is the other binary level, the resulting signal is coded in biphase code.
Claims9
A method for encoding a first and a second independent binary signal sequence as a single ternary signal sequence comprising the steps of:
- grouping time corresponding binary signals of said first and second sequences into pairs, each pair comprising a first binary signal from said first sequence and a second binary signal from said second sequence, and
- encoding each pair as a bipolar signal when said first binary signal has a first predetermined value, and as a biphase signal when said first binary signal has a value complementary to that of said first predetermined value.
A method for transmitting first and second independent binary signal sequences over a transmission medium as a single ternary signal sequence comprising the steps of:
- grouping time corresponding binary signals of said first and second sequences into pairs, each pair comprising a first binary signal from said first sequence and a second binary signal from said second sequence,
- encoding each pair as a bipolar signal when said first binary signal has a first predetermined value, and as a biphase signal when said first binary signal has a value complementary to that of said first predetermined value, and
- transmitting said encoded signals over said transmission medium.
Dependencies are inferred from the claim text.