US 9,313,300 B2 · Methods and apparatuses for a unified compression framework of baseband signals

Abstract

A method and apparatus provides a parameter estimation processor configured to estimate parameters used to compress data for transmission over a serial data link. The parameter estimation processor includes a processor. The processor includes user programmable inputs. The user programmable inputs set an input data packet length, a target compression ratio, and a resampling factor and allow filter parameters to be set. Input data information is received from an input data buffer of a data sample compressor. The processor performs a function that: (a) adjusting a target compression ratio by a first compression ratio to determine a remaining compression ratio when the resampling operation is enabled; (b) estimating a set of compression parameters that are used to achieve the remaining compression ratio, the set of compression parameters includes an attenuation value, filter order, a type of encoding; and (c) sends the set of compression parameters to the data sample compressor. The data sample compressor applies the compression parameters to a packet of input data and outputs a plurality of compressed data words.

Claims13

Dependent claims

A method to compress data for transmission over a serial data link, the method comprising:

distributing a target compression ratio across a plurality of processes, wherein a parameter estimation processor assigns a compression ratio contribution to each process and a sum of the compression ratio contributions is approximately equal to the target compression ratio;
resampling input data in a first process to generate resampled input data, the resampling accomplishes a first compression ratio contribution toward achieving the target compression ratio;
attenuating the resampled input data to generate attenuated resampled input data, the attenuating accomplishes a second compression ratio contribution toward achieving the target compression ratio;
removing redundancy from the attenuated resampled input data to generate shortened attenuated resampled input data, the removing accomplishes a third compression ratio contribution toward achieving the target compression ratio, a shortened attenuated resampled input data results from the removing;
and
encoding the shortened attenuated resampled input data in a fourth process to generate encoded compressed data, the encoding accomplishes a fourth compression ratio contribution toward achieving the target compression ratio, encoded compressed data results from the encoding, wherein degradation of the encoded compressed data is reduced by the distributing.

3 more elements

A data sample compressor configured to communicate with a parameter estimation processor to compress data for transmission over a serial data link, comprising:

a data resampler, the data resampler is configured to resample input data samples, the data resampler is bypassed if the input data is not over sampled;
an input data buffer coupled to the data resampler, the input data buffer receives resampled data from the data resampler, information on resampled data in the data buffer is provided to the parameter estimation processor;
a data attenuator coupled to the input data buffer, the data attenuator receives resampled data from the input data buffer and an attenuation value from the parameter estimation processor, the data attenuator applies the attenuation value to the resampled data to create attenuated data;
a redundancy remover coupled to the data attenuator, the redundancy remover receives attenuated data from the data attenuator and a filter number from the parameter estimation processor, the redundancy remover filters the attenuated data according to the filter number;
an encoder coupled to the redundancy remover, the encoder receives filtered data from the redundancy remover and creates encoded data words;
and
an output buffer, the output buffer receives encoded data words and packs the encoded data words and header information into a packet of compressed data, such that the compressed data packets are available for transmission over the serial data link.

4 more elements

Dependencies are inferred from the claim text.

Methods and apparatuses for a unified compression framework of baseband signals

Life of this patent

Methods and apparatuses for a unified compression framework of baseband signals

Life of this patent

Abstract

Claims13