Patent ID: 6671307
Filing Date: 2003-12-30
Classification: H04B,H04L

Abstract:
A spread-spectrum transmitter for sending data over a communications channel, comprising:a forward-error-correction (FEC) encoder for encoding, with an FEC code, the data as FEC data; an interleaver, coupled to said FEC encoder, for interleaving the FEC data as interleaved data; a memory, coupled to said interleaver, for storing N bits of interleaved data as stored data, with N a number of bits in a symbol; a chip-sequence encoder, coupled to said memory, for selecting, responsive to the N bits of stored data, a chip-sequence signal from 2N chip-sequence signals stored in said chip-sequence encoder, as an output chip-sequence signal of said chip-sequence encoder; and a transmitter section, coupled to said chip-sequence encoder, for transmitting the output chip-sequence signal as a radio wave, at a carrier frequency, over said communications channel, as a spread-spectrum signal.