System and method for encoding an audio signal, by adding an...

H - Electricity – 04 – B

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H04B 1/16 (2006.01) H04H 20/31 (2009.01) G06F 17/14 (2006.01) G10L 19/00 (2006.01)

Patent

CA 2685335

A method of reading a data element from a received signal, including a) computing a Fourier Transform of a first block of n samples of the received signal; b) testing the first block for the data element; c) setting an array element SIS[a] of an SIS array to a predetermined value if the data element is found in the first block; d) updating the Fourier Transform of the first block of n samples for a second block of n samples of the received signal, wherein the second block differs from the first block by k samples, and wherein k < n; e) testing the second block for the data element; and f) setting an array element (SIS[a+1] of the SIS array to the predetermined value if the data element is found in the first block.

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