Signal component demultiplexing apparatus, filter apparatus, receiving apparatus, communication apparatus, and communication method
AssigneeSony Corporation
InventorKazuyuki Sakoda
Life of this patent
Estimating the term…
Abstract
A filter apparatus extracts a specific signal from a group of multi-carrier modulated signals. A complex sine wave signal is outputted in accordance with a channel to be selected. The complex sine wave signal and an input group of signals are multiplied. A specific group of signals is selected from a result of the multiplication and is rearranged along a frequency axis.
Claims5
A filter apparatus for extracting a specific signal from a group of multi-carrier modulated signals, the filter apparatus comprising:
- pass subcarrier selection signal outputting means for outputting a complex sine wave signal in accordance with a channel to be selected;
- multiplying means for multiplying the complex sine wave signal and an input group of signals;
- signal component demultiplexing means for selecting a specific group of signals from a result of the multiplication in the multiplying means;
- and
- symbol rearranging means for rearranging an output of the signal component demultiplexing means along a frequency axis.
A receiving apparatus for multiplex communication based on multi-carrier modulation in which subcarriers of a plurality of channels are cyclically arranged, the receiving apparatus comprising:
- receiving means for receiving a group of multi-carrier modulated signals;
- a filter apparatus for extracting a specific signal from the group of multi-carrier modulated signals received by the receiving means;
- orthogonal transforming means for orthogonally transforming the extracted signal;
- and
- decoding means for decoding the orthogonally transformed signal;
- the filter apparatus including:
- pass subcarrier selection signal outputting means for outputting a complex sine wave signal in accordance with a channel to be selected,
- multiplying means for multiplying the complex sine wave signal and an input group of signals,
- signal component demultiplexing means for selecting a specific group of signals from a result of the multiplication in the multiplying means, and
- symbol rearranging means for rearranging an output of the signal component demultiplexing means along a frequency axis.
Dependencies are inferred from the claim text.