Patent ID: 7898707
Filing Date: 2011-03-01
Classification: H04N

Abstract:
1. A method of normalizing a P-bit input digital signal, which is expressed by binary notation, to 2 M −1 (0<M≦P) tones, executed by a normalizing apparatus operating on the P-bit input digital signal, the method comprising the step of: repetitively concatenating, by the normalizing apparatus, upper M bits of the input digital signal L times (L is an integer) until P bits are reached; comparing, by the normalizing apparatus, a concatenated signal obtained as a result of concatenation in the concatenating step with the input digital signal; and determining, by the normalizing apparatus, a value indicated by the upper M bits or a value obtained by subtracting 1 from the value indicated by the upper M bits as a normalized value depending on a comparison result in the comparing step.