Patent Document ID: 7697619
Application ID: 10865133
Patent Flag: 1

Claim One:
1. A data transmission system for using a training sequence to produce a channel estimate, the system comprising: a receiver that receives a series of blocks of training samples, wherein each block of the series of blocks includes a predetermined number of training samples, and wherein for a given pair of the blocks of training samples, all samples in the given pair of the blocks of training samples are of identical value except for one particular sample in a first of the pair of blocks that is different in value from the identical values; and channel estimation circuitry which uses the sample different in value to update individual taps of the channel estimate independently of other taps by computing a function of (a) a difference between (1) the sample different in value in the first block and (2) an other sample of the samples from a second of the pair of blocks of training samples, and (b) the channel estimate.