Title:
AUDIO SYSTEM AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/187902
Kind Code:
A1
Abstract:
Provided is an audio system that, without the use of earphones or headphones, plays back sound that cannot be heard by users in one's surroundings. The audio system comprises at least two speaker unit pairs that each include a positive speaker which does not include a speaker box and a negative speaker which does not include a speaker box, said audio system including: a selection unit that selects one of the speaker unit pairs in accordance with the position of an auditory organ of a user and the position of the speaker unit pairs; and a control unit that performs control such that an audio signal (first audio signal) from a prescribed audio source is output only from the positive speaker of the selected speaker unit pair, and an audio signal (second audio signal) of the opposite phase to the first audio signal is output only from the negative speaker of the selected speaker unit pair.
Inventors:
FUKUI MASAHIRO (JP)
KOBAYASHI KAZUNORI (JP)
KAMADO NORIYOSHI (JP)
WAKISAKA YOHEI (JP)
KOBAYASHI KAZUNORI (JP)
KAMADO NORIYOSHI (JP)
WAKISAKA YOHEI (JP)
Application Number:
PCT/JP2022/014994
Publication Date:
October 05, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04R1/40; H04R1/02; H04R3/00
Foreign References:
| JP2003087893A | 2003-03-20 | |||
| JP2008227804A | 2008-09-25 | |||
| JP2003087888A | 2003-03-20 | |||
| JP2021154807A | 2021-10-07 | |||
| JP2004266475A | 2004-09-24 |
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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