Title:
SIGNAL PROCESSING DEVICE AND ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2021/039037
Kind Code:
A1
Abstract:
A signal processing device (1) is provided with an offset adjuster (51), an amplitude adjuster (52), and a delay adjuster (53). The offset adjuster (51) adjusts direct current offset by using a first parameter pertaining to the direct current offset, the first parameter being determined on the basis of an output of the offset adjuster (51) when a signal is not input into a signal processing circuit (20) from a subtractor (10). The amplitude adjuster (52) adjusts amplitude by using a second parameter pertaining to the amplitude, the second parameter being determined on the basis of a first test signal and an output of the amplitude adjuster (52) when the first test signal has been input into the signal processing circuit (20). The delay adjuster (53) adjusts a delay by using a third parameter pertaining to delay, the third parameter being determined on the basis of a differential signal, which is an output of a subtractor (71) when a second test signal has been input into the signal processing circuit (20).
Inventors:
OKUDA TADAYOSHI
Application Number:
PCT/JP2020/023507
Publication Date:
March 04, 2021
Filing Date:
June 16, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H03F1/32; H04R3/00; H03F3/217
Domestic Patent References:
| WO2012046668A1 | 2012-04-12 |
Foreign References:
| JP2009213011A | 2009-09-17 | |||
| JP2004289424A | 2004-10-14 | |||
| JP2010136115A | 2010-06-17 | |||
| JP2015023452A | 2015-02-02 | |||
| JP2015159420A | 2015-09-03 | |||
| JP3801118B2 | 2006-07-26 | |||
| JP4708159B2 | 2011-06-22 |
Other References:
See also references of EP 4024892A4
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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