Apparatus and method for signal separation and recording medium for the same
US6704369B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2000 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2021/0034
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal separation apparatus is capable of extracting original signals of two different systems with a high quality from received signals containing the original signals superposed each other in the course of transmission. In signal transmission from senders to receiver equipment, the signals to be sent separately are susceptible to mutual interference and superposition with given amplification factors in the course of transmission through respective transmission channels to such an extent that these signals can no more be discerned from each other by a receiver. For restoring the original signals of different sources from the received signals with high fidelity, characteristics of the transmission channels are estimated by means of an evaluation function unit operatable with autocorrelation calculation, and the characteristics of filter elements of a signal separation circuit incorporated in the signal separation apparatus are determined on the basis of the results of the estimation to thereby allow the original signals of two sources to be restored from the mutually superposed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.