Patent Document ID: 6028541
Application ID: 09041852
Patent Flag: 1

Claim One:
1. A method for encoding one or more source samples of a digital signal, the method comprising: receiving a current sample of the one or more source samples; predicting a predicted current sample using one or more previously received ones of the one or more source samples; measuring a residual signal between the received current sample and the predicted current sample; encoding the residual signal by: partitioning the residual signal into a least significant portion which has a number of bits and a most significant portion; representing the least significant portion in binary form using the number of bits; determining a value of the most significant portion; representing the most significant portion as a series of bits having a first predetermined bit value wherein the series has a length equivalent to the value of the most significant portion and is delimited by a bit having a second predetermined bit value; and adapting the number of bits by: applying an infinite impulse response filter to the residual signal to form a filtered residual signal; and adjusting the number of bits in accordance with the filtered residual signal.