Mstar Semiconductor, Inc.

Mstar France Sas

Mstar Software R&d, Ltd.

Mstar Software R&d (Shenzhen) Ltd.

James Chapman

Cyril Valadon

Martin Geoffrey Leach

Navid Fatemi-Ghomi

Jason Taylor

Simon Richardson

A scheme for determining which of a set of taps that can potentially be used to measure a channel impulse response should be used to estimate the channel impulse response.

Refinement of channel response calculation

A signal receiver is arranged to process a portion of a received signal in each of a plurality of filter branches and to determine a quality metric for each branch. The configuration of a second filter for processing the entirety of the received signal is subsequently performed according to the determined quality metrics.

Method and apparatus for selecting a channel filter for a communication system

A communications signal is received through a propagation channel, down-converted in frequency and then converted into a digital signal. The samples of the digital signal are processed to estimate the information conveyed by the communications signal. The estimated information is then used with knowledge about the propagation channel to model the samples of the digital signal. The modeled samples are compared with actual samples of the digital signal to deduce phase errors in the digital signal. The phase errors are then used to deduce a frequency error in the digital signal that can be used to correct the samples of the digital signal and to correct the down-conversion process.

Frequency error correction by using remodulation

Growing community of inventors

Cambridge, United Kingdom

James Chapman