Method and system for correcting quantization loss during analog to digital to analog signal conversion
AssigneeLSI Logic Corporation
InventorMirko Vojnovic
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Abstract
A method and system for correcting quantization loss of a signal during analog to digital to analog signal conversion, wherein the quantization loss is a function of (sin x)/x, is disclosed. The system and method of the present invention includes utilizing a continuous function polynomial to represent a (sin x)/x function, and applying an inverse function of the continuous function polynomial to the signal to provide a correction for the quantization loss.
Claims12
A method for correcting quantization loss of a signal during analog to digital to analog signal conversion, wherein the quantization loss is a function of (sin x)/x, the method comprising the steps of:
- (a) utilizing a continuous function polynomial to represent a (sin x)/x function;
- and
- (b) applying an inverse function of the continuous function polynomial to the signal to provide a correction for the quantization loss.
A system for correcting quantization loss of a signal during analog to digital to analog signal conversion, wherein the quantization loss is a function of (sin x)/x, comprising:
- a correction mechanism for receiving an uncorrected signal;
- a filter in the correction mechanism for creating an inverse function of a continuous function polynomial representing a (sin x)/x function;
- and
- means for applying the inverse function to the signal to provide a correction for the quantization loss.
Dependencies are inferred from the claim text.