Patent ID: 8442164

Claim:
Apparatus for determining a location of at least one peak in correlation output samples, the apparatus comprising: multiple correlators including at least a first correlator configured and arranged to compare a bit sequence with a first symbol, having a symbol time period, and to generate correlation output samples having a correlation value that is based upon the comparison of the first correlator; and a second correlator configured and arranged to compare the bit sequence with a second symbol, different from the first symbol, and to generate correlation output samples based upon the comparison of the second correlator; circuitry configured and arranged to receive the correlation output samples from the multiple correlators; circuitry configured and arranged to select correlation output samples from between samples from each of the correlators based upon the correlation values for the correlation output samples at corresponding times and from different correlators, and combine the selected samples into combined samples; and circuitry configured and arranged to determine a position of a peak by analyzing the combined samples for a time period that is longer than the symbol time period.