Apparatus for conversion of scaled binary data

Coded data generation or conversion – Digital code to digital code converters – To or from 'n' out of 'm' codes

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341139, 341 95, H03M 116, H03M 120

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active

056063180

ABSTRACT:
An apparatus converts m-bit digital data having a scale factor of K.sub.1 to n-bit digital data having a scale factor of K.sub.2. The apparatus comprises a digital to analog converter which receives the m-bit digital data, for outputting a first analog signal representative of a value associated with the m-bit digital data. An amplifier receives the first analog signal multiplies it by a factor, and outputs a second analog signal. The factor of the amplifier is K.sub.2 /K.sub.1, such that the second analog signal has a value with the scale factor of K.sub.2 associated therewith. An analog to digital converter receives the second analog signal, and converts the second analog signal to the n-bit digital data. The n-bit digital data has the scale factor of K.sub.2 associated therewith, the value representative of the n-bit digital data being essentially equal in the example of the present application to the value representative of the m-bit digital data, however, this is not always a requirement.

REFERENCES:
patent: 3956746 (1976-05-01), Lisle, Jr. et al.
patent: 4642608 (1987-02-01), Tomasi
patent: 4983966 (1991-01-01), Grone et al.
patent: 5146155 (1992-09-01), Trinh Van et al.
patent: 5278558 (1994-01-01), Roth

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