Coded data generation or conversion – Digital code to digital code converters
Patent
1992-09-18
1994-07-12
Williams, Howard L.
Coded data generation or conversion
Digital code to digital code converters
341160, H03M 714
Patent
active
053292790
ABSTRACT:
A method of transcoding digital data which, at the start, appear in the form of a thermometric code, the successive values of which may be represented by a first bit matrix (columns 1 to 8). The method uses an intermediate code defined by a second matrix (low significance), (columns (1), (2), (3) and (4)), and by a third matrix (high significance), (columns 4 and 8), which is extracted from the first matrix. The intermediate code delivers digital words which are shorter than the starting words and permits a later transformation into a binary code (columns [1], [2], [3], [4],) which is very simple. A decoder and a converter using this method is described where the decoder is organized so as to first produce the values of the intermediate code and then, the corresponding values in binary code. The converter employs analog gates with multiple inputs instead of the purely logic input blocks of the decoder.
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patent: 4897656 (1990-01-01), van de Plassche et al.
patent: 5119098 (1992-06-01), Komatsu et al.
patent: 5243348 (1993-09-01), Jackson
Barbu Stephane
Le-Pailleur Laurent
Franzblau Bernard
U.S. Philips Corporation
Williams Howard L.
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