Patent ID: 8041538

Claim:
A method for estimating, by means of a circuit, a value of a signal, comprising: receiving a signal formed of a series of values corresponding either to a first value or to a second value equal to the opposite of the first value, where the received signal can take values other than said first and second values due to noise; estimating the first value of the received signal by determining a specific quantity such that one quarter of the values of a determined number of values of the signal, corresponding either to said first value or to said second value, are greater than or equal to the specific quantity, and three quarters of the values of the determined number of values of the signal are smaller than or equal to the specific quantity, selecting as the first value of the signal said specific quantity; determining the average of said determined number of values of the signal; and calculating for each value of said determined number of values the difference between this value and the average, the determining and the selecting being applied to the differences thus calculated.