Patent ID: 9300515
Filing Date: 2016-03-29
CPC Classification: H03M,H04L

Claim Text:
1. A data processing apparatus configured to map symbols received from a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol into an output symbol stream, the data processing apparatus, comprising: a de-interleaver configured to read-into a memory a predetermined number of data symbols from the OFDM sub-carrier signals, and to read-out of the memory the data symbols into the output symbol stream to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are de-interleaved from the OFDM sub-carrier signals, and an address generator configured to generate the set of addresses, an address being generated for each of the received data symbols to indicate the OFDM sub-carrier signal from which the received data symbol is to be mapped into the output symbol stream, the address generator including the predetermined maximum valid address is approximately eight thousand, and the linear feedback shift register has twelve register stages with a generator polynomial for the linear feedback shift register of R′