Optimized timing recovery device and method using linear predictor
AssigneeZoran Corporation
InventorsPing Dong, Jordan Christopher Cookman
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Abstract
In accordance with a method and apparatus of the present invention, a timing recovery device is disclosed to include a timing correction module responsive to a sampled input signal and adapted to generate a time-corrected signal and to further include a linear predictor coupled to the timing correction module for filtering the time-corrected signal to generate a whitened output signal and to further include a timing update module responsive to the whitened output signal for updating at least one parameter in the timing correction module.
Claims29
A timing recovery device for use in a receiver of a communication system, comprising:
- a timing correction module responsive to a sampled input signal from an analog-to-digital (A/D) converter, the sampled input signal having a sampling rate not synchronized to a transmitter, the timing correction module adapted to resample the received sampled input signal at a rate synchronized to a transmitter and to generate a time-corrected signal and using at least one parameter for correction;
- a linear predictor coupled to the timing correction module for filtering the time-corrected signal to generate a whitened output signal;
- and
- a timing update module responsive to the whitened output signal operative to update at least one parameter in the timing correction module.
A timing recovery device for use in a receiver of a communication system, comprising:
- a linear predictor responsive to a sampled input signal and adapted to generate a whitened output signal;
- and
- a timing update module responsive to the whitened output signal for adjusting the sampling rate of said sampled input signal.
A timing recovery method comprising:
- receiving a sampled signal, wherein the sampling rate of the signal is not synchronized to a transmitter;
- re-sampling said sampled signal at a rate synchronized to said transmitter, to generate a time-corrected signal;
- whitening said time-corrected signal using linear prediction techniques, to generate a whitened signal;
- and
- updating at least one parameter for a subsequent re-sampling step.
A timing recovery method comprised of the following steps:
- receiving a sampled signal, wherein the sampling rate of the signal is not synchronized to a transmitter;
- re-sampling said sampled signal at a rate synchronized to said transmitter to generate a time-corrected signal;
- demultiplexing said time-corrected signal to generate two or more sub-sampled signals;
- whitening said sub-sampled signals using linear prediction techniques to generate two or more whitened sub-sampled signals;
- and
- updating at least one parameter for a subsequent re-sampling step.
A timing recovery method comprising:
- receiving a sampled signal, wherein the sampling rate of the signal is synchronized to a transmitter;
- whitening said sampled signal using linear prediction techniques, to generate a whitened signal;
- and
- updating the sampling rate of said sampled signal.
A timing recovery method comprised of the following steps:
- receiving a sampled signal, wherein the sampling rate of the signal is synchronized to a transmitter;
- demultiplexing said sampled signal to generate two or more sub-sampled signals;
- whitening said sub-sampled signals using linear prediction techniques to generate two or more whitened sub-sampled signals;
- and
- updating the sampling rate of said sampled signal.
Dependencies are inferred from the claim text.