Patent ID: 7561511
Filing Date: 2009-07-14
Classification: G06F,H04B,H04L

Abstract:
1. A configurable Orthogonal Frequency Division Multiplexing (OFDM) device comprising: a first transform stage configured to receive a first stage digital input that includes a first plurality of input bits and to generate a first stage digital output that includes a first plurality of output bits having a first length; a second transform stage configured to operate in conjunction with the first transform stage, to receive a second stage digital input that includes a second plurality of input bits, and to generate a second stage digital output that includes a second plurality of output bits having a second length; and a switching network that is controlled by a control signal indicating a desired OFDM mode and that is configured to selectively disconnect the second transform stage from the first transform stage or connect the second transform stage with the first transform stage according to the desired OFDM mode; wherein: the first length corresponds to a first output length of a first OFDM operational mode, the second length corresponds to a second output length of a second OFDM operational mode, and the first length is different from the second length; in the event that the switching network selectively disconnects the second transform stage from the first transform stage, the first stage digital output is provided as a device output, wherein the first stage digital output includes the first plurality of output bits having the first length that corresponds to the first output length of a first OFDM operational mode; and in the event that the switching network selectively connects the second transform stage with the first transform stage, the second stage digital output is provided as the device output, wherein the second stage digital output includes the second plurality of output bits having the second length that corresponds to the second output length of the second OFDM operational mode.