Signal processing apparatus and method for removing reflected wave generated by robot platform
US8416642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/801
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a signal processing apparatus and method for removing a reflected wave generated by a robot platform. The signal processing apparatus includes a transfer function measuring unit for measuring an inter-channel transfer function (IcTF) from signals of a plurality of channels; an impulse response obtaining unit for obtaining an inter-channel impulse response (IcIR) from the IcTF measured by the transfer function measuring unit; and reflected wave removing unit for removing the reflected wave by differentiating a direct wave directly generated by a sound source and the reflected wave with a time delay from the IcIR obtained by the impulse response obtaining unit. The signal processing method of removing a reflected wave includes measuring an IcTF from signals of a plurality of channels; obtaining an IcIR from the measured IcTF; and removing the reflected wave by differentiating a direct wave directly generated by a sound source and a the reflected wave with a time delay from the obtained IcIR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.