Coded data generation or conversion – Digital code to digital code converters – To or from 'n' out of 'm' codes
Patent
1994-09-30
1997-02-25
Gaffin, Jeffrey A.
Coded data generation or conversion
Digital code to digital code converters
To or from 'n' out of 'm' codes
341139, 341 95, H03M 116, H03M 120
Patent
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.
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Champion R. E.
Gaffin Jeffrey A.
Honeywell Inc.
Jean-Pierre Peguy
Sapelli A. A.
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