Data modulating system

Details Data modulating system Data modulating system

1990-07-24

1991-12-17

Scott, J. R.

Coded data generation or conversion

Digital code to digital code converters

Coding by table look-up techniques

341102, H03M 700, H03M 720

Patent

active

050737767

ABSTRACT:
In a data modulating system, 12 bits of input data correspond to 15 channel bits of an output code. The input data of 12 bits are converted to the output code of 15 channel bits such that 7 channel bits in the output code provide code "1". The output code of 15 channel bits is divided into a first group of 7 channel bits and a second group of 8 channel bits. The number of bits in the first group providing code "1" the number of bits in the second group providing code "1" are respectively at 3 and 4, 4 and 3, or 2 and 5.

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patent: 4855742 (1989-08-01), Verboom
patent: 4926169 (1990-05-01), Tong et al.
patent: 4937574 (1990-06-01), Wright

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