Coded data generation or conversion – Digital code to digital code converters – With error detection or correction
Reexamination Certificate
2005-11-15
2005-11-15
Nguyen, John B (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
With error detection or correction
C375S240270, C714S746000
Reexamination Certificate
active
06965330
ABSTRACT:
A system and method to improve signal quality by including a weighted signal average in computations that calculate a regenerated signal's sampling values is presented. Secondary signal lobe values are removed from an original signal during signal re-sampling computations in order to minimize signal re-sampling memory requirements. A weighed signal average is included in signal re-sampling computations in order improve signal quality that was degraded due to the removal of the secondary signal lobe values. Weighted signal averages are calculated using error function values that are included in an error function. Each error function value corresponds to the distance between sample points of an original signal and the regenerated signal. The error function value is combined with the original signal's average signal value to produce a weighed signal average.
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patent: 6654596 (2003-11-01), Jakobsson et al.
patent: 2002/0095273 (2002-07-01), Tanizawa
patent: 2003/0226098 (2003-12-01), Weng
Gerhardt Diana R.
International Business Machines - Corporation
Nguyen John B
Schmok Scott A.
VanLeeuwen & VanLeeuwen
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