Patent ID: 7849418

Claim:
An encoder, comprising: a modulation encoder for: receiving a plurality of user information; and encoding first user information of the plurality of user information thereby generating first scrambled user information and first modulation redundancy bits; encoding second user information of the plurality of user information thereby generating second scrambled user information and second modulation redundancy bits; and outputting a modulation encoded codeword that includes the first scrambled user information, followed by the second scrambled user information, followed by the first modulation redundancy bits, followed by the second modulation redundancy bits; and a RS (Reed-Solomon) encoder for encoding the modulation encoded codeword thereby generating a RS codeword that includes RS redundancy bits; and wherein: the first scrambled user information and the second scrambled user information forming scrambled user information; the first modulation redundancy bits and the second modulation redundancy bits forming modulation redundancy bits; and the scrambled user information, the modulation redundancy bits, and the RS redundancy bits being output such that the scrambled user information, the modulation redundancy bits, and the RS redundancy bits being segregated from each other.