Patent ID: 8200031

Claim:
A method for recovering information represented by a plurality of untransmitted most significant bits in a subsequent sample of a group of samples where the first transmitted sample of the group is transmitted with full bit resolution and a noise value in the group of samples is equivalent to a k-bit signal, said method comprising: if a (k+2)-bit and a (k+1)-bit of the subsequent sample are respectively equal to 0 and 0, and if the (k+2)-bit of a first one of the plurality of samples is equal to 1, setting said untransmitted plurality of most significant bits to be equal to a corresponding set of most significant bits in said first one of the plurality of samples plus one; otherwise if the (k+2)-bit and (k+1)-bit of the subsequent sample are respectively equal to 1 and 1, and if the (k+2)-bit of the first one of the plurality of samples is equal to 0, setting said untransmitted plurality of most significant bits to be equal the corresponding set of most significant bits in said plurality of samples minus one; and otherwise setting said untransmitted plurality of most significant bits to be equal to the corresponding set of most significant bits in said first one of the plurality of samples.