Patent ID: 9031174
Filing Date: 2015-05-12
Classification: H04L

Abstract:
1. A demapping device, comprising: an averager receiving a compensation data for determining a degree of the compensation; a demapping function module receiving the compensation data for demapping the compensation data and then outputting a demapped compensation data; a quantizer coupled to the averager and the demapping function module, utilized to quantize the demapped compensation data according to the degree of the compensation and a maximum of quantization; a counter coupled to the quantizer for receiving a quantized data outputted from the quantizer, utilized to count a maximum value and a minimum value within the quantized data under a condition that a ratio of the maximum value and the minimum value is divorced from a predetermined ratio and output a counting result, and to simultaneously provide the maximum of quantization for the quantizer to readjust levels of the quantizer; and a compressor coupled to the counter, utilized to compress the counting result to reduce a number of bits.