发明名称 |
Noise eliminating device, noise eliminating method, and noise eliminating program |
摘要 |
Provided is a noise eliminating device that includes: a signal calculator that calculates a difference signal between a signal of one channel out of a plurality of signals input from a plurality of channels and a signal of another channel; a variable filter unit that processes and outputs the signals of channels; an adaptive filter unit that operates by receiving a composite signal of the difference signal and another signal as an input signal; and a unit that calculates an error signal between an output signal of the adaptive filter unit and a signal having correlation with the another signal being set as a desired signal. Characteristics of the adaptive filter are changed by using the error signal. Further, characteristics of the variable filter are changed in accordance with a change in the characteristics of the adaptive filter. |
申请公布号 |
US9131307(B2) |
申请公布日期 |
2015.09.08 |
申请号 |
US201314103631 |
申请日期 |
2013.12.11 |
申请人 |
JVC KENWOOD Corporation |
发明人 |
Teranishi Yasuhiko |
分类号 |
A61F11/06;H04R5/04 |
主分类号 |
A61F11/06 |
代理机构 |
Venable LLP |
代理人 |
Venable LLP ;Sartori Michael A. |
主权项 |
1. A noise eliminating device comprising:
a signal calculator configured to calculate a difference signal between a signal of one channel out of a plurality of signals input from a plurality of channels and a signal of another channel; a variable filter unit configured to process the signals of the plurality of channels and output processed signals; an adaptive filter unit configured to operate by receiving a composite signal of the difference signal and another signal as an input signal; and a unit configured to calculate an error signal between an output signal of the adaptive filter unit and a signal having correlation with the another signal being set as a desired signal, wherein characteristics of the adaptive filter are changed by using the error signal, and characteristics of the variable filter are changed in accordance with a change in the characteristics of the adaptive filter. |
地址 |
Yokohama-shi JP |