公开(公告)号：US20180019720A1

公开(公告)日：2018-01-18

申请号：US15545725

申请日：2016-02-24

Applicant: CLARION CO., LTD.

Inventor： Takeshi HASHIMOTO ,  Tetsuo WATANABE ,  Yasuhiro FUJITA ,  Kazutomo FUKUE ,  Takatomi KUMAGAI ,  Hideyuki MORITA

IPC: H03G5/16 ,  H03G5/00

CPC classification number: H03G5/165 ,  H03G5/005 ,  H03H17/02 ,  H03H17/06

Abstract: A filter generator (100) generates a filter on the basis of band information (frequency) and gain characteristics (gain value) set by a user. The filter generator (100) obtains weighting factor information on the basis of the band information selected by the user and calculates a gain difference between a gain value used in a preceding filtering process and the new gain value selected by the user. The filter generator (100) then obtains a correction gain by multiplying the weighting factor information by the gain difference and generates a filter by multiplying a coefficient of the filter used in the preceding filtering process by the correction gain.

公开(公告)号：US20200213798A1

公开(公告)日：2020-07-02

申请号：US16646768

申请日：2018-07-19

Applicant: Clarion Co., Ltd.

Inventor： Hideyuki MORITA ,  Takeshi HASHIMOTO

IPC: H04S3/00 ,  H04S7/00 ,  H04R3/12

Abstract: A signal delay adjustment device for individually setting delay times of audio signals supplied to a plurality of speakers and individually delaying the audio signals supplied to the plurality of speakers with set delay times to adjust output timings of sounds among the plurality of speakers is configured to include a setting part to set a delay time applied to the audio signal for each speaker, and a delay part for individually delaying the audio signal to be supplied to the plurality of speakers based on the delay time set by the setting part. The delay part gradually changes the delay time to be applied to the audio signal over a predetermined time so that the delay time to be applied to the audio signal reaches the delay time set by the setting part over the predetermined time.