Patent ID: 7680194

Claim:
A method for processing a signal using pilot based coding (PBC), the method comprising: obtaining, by an audio coding apparatus and using a pilot based coding (PBC) scheme, a first partial parameter using a pilot reference value and one or more pilot difference values, the pilot reference value corresponding to data elements of a current group included in a current frame, and the one or more pilot difference values corresponding to the pilot reference value and the data elements; and defining a whole parameter using the first partial parameter and at least a second partial parameter, wherein: the pilot reference value is dependent on each of the data elements of the current group, and is not dependent on the data elements of an other frame, a quantity of the pilot difference values is equal to a quantity of the data elements of the current group, the pilot reference value is a single value which applies to all of the data elements of the current group, and each pilot difference value corresponds to each data element of the current group.