Title:
SIGNAL PROCESSING DEVICE, SOUND WAVE SYSTEM, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/026667
Kind Code:
A1
Abstract:
This signal processing device includes: a wave-transmission signal generation unit configured so as to generate a wave-transmission signal for wave transmission of a sound wave; a wave-reception signal output unit configured so as to output a wave-reception signal based on the received sound wave; and a reflected wave detection unit configured so as to detect a reflected wave of the wave transmission that may be included in the received wave, on the basis of the wave-reception signal. The wave-transmission signal includes: a first signal having a first predetermined wave number; and a second signal, which is generated after the first signal and has a second predetermined wave number that is smaller than the first predetermined number.
Inventors:
TAKAMURA SHOGO (JP)
Application Number:
PCT/JP2022/025242
Publication Date:
March 02, 2023
Filing Date:
June 24, 2022
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G01S7/524; G01S7/526; G01S15/10; G01S15/931
Foreign References:
| JP2014035323A | 2014-02-24 | |||
| JP2020148701A | 2020-09-17 | |||
| JP2012220435A | 2012-11-12 | |||
| US20200233071A1 | 2020-07-23 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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