Patent ID: 8350968

Claim:
A universal transmitter for the international television bands, comprising: a channel bandwidth selector used to select a channel bandwidth to be used for data to be transmitted by the universal transmitter, and comprising a switch used to select a read only memory (ROM) that stores orthogonal frequency-division multiplexing (OFDM) parameters for each respective channel bandwidth to be used for the data transmission by the universal transmitter; a subcarrier allocator that receives information about the selected channel bandwidth from the channel bandwidth selector and allocates subcarriers for the data to be transmitted based on the information received; a channel coding processor that receives the data to be transmitted and processes the data for a quadrature amplitude modulation (QAM) mapper, which passes QAM mapped data to the subcarrier allocator, the channel coding processor comprising a data scrambler, a data encoder, a data puncturer, and a bit interleaver; a pilot subcarrier inserter that receives information about the selected channel bandwidth from one of the channel bandwidth selector and the subcarrier allocator, and inserts pilot subcarriers into the data to be transmitted based on the information received; a serial-to-parallel converter that converts the data to be transmitted to a parallel data stream that is passed to an Inverse Fast Fourier Transform (IFFT) that processes the data to be transmitted using IFFT parameters that are the same for each of the channel bandwidths that can be used by the universal transmitter, and output from the IFFT is passed to a parallel-to-serial converter that converts the IFFT output to a serial output stream; a cyclic prefix inserter that receives the serial output stream and inserts a cyclic prefix and frames the serial output stream based on a predetermined cyclic prefix option, wherein the cyclic prefix and framing parameters for any given cyclic prefix option is the same for all channel bandwidths that can be used by the universal transmitter; and a digital-to-analog converter having a fixed sampling rate based on a 7 MHz channel bandwidth, that receives the serial output stream from the cyclic prefix inserter and converts the serial output stream to an analog OFDM signal that is transmitted by the universal transmitter.