In-vehicle independent sound field system and control system based on mini-speakers
US11197092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2020 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Aug 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An in-vehicle independent sound field system and control system based on mini-speakers are provided. The system includes a mini-speaker array installed in front of a user and a mini-speaker installed near the user's ear. Each mini-speaker is provided with a coupling rear cavity, and the mini-speaker near the user's ear is provided with a sound guide front cavity. A controller is provided to control the mini-speaker array to perform an intermediate-and-high frequency directional replay, and control the mini-speakers near the user's ear to perform low-frequency replay and autonomous counterbalance, to solve the problem that a speaker array cannot be installed with a traditional in-vehicle speaker size and that a low-frequency effect is bad when merely using a speaker array to control sound direction, Besides, when different sources are being played, they rarely interfere with each other, thereby improving personalized requirements for sound and user experience of users in a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.