Patent ID: 7791510
Filing Date: 2010-09-07
Classification: H03M

Abstract:
1. An encoding method for dividing a bit string of an input signal at a position of x bits from a least significant bit into a high-order bit string and a low-order bit string, performing variable-length-encoding of the high-order bit string, and performing fixed-length-encoding of the low-order bit string, the encoding method comprising the steps of: determining whether an integer m of 0 or more is even or odd; when m is even, setting a reference integer I to 2 when m is odd, deriving the reference integer I close to 2 obtaining a quotient and a remainder that are determined by performing a dividing operation on numerical values represented respectively by the bit strings by using the reference integer I; and performing variable-length-encoding of each of quotients of two consecutive bit strings, combining remainders corresponding to the quotients and performing fixed-length-encoding of the result, and generating a codeword.