公开(公告)号：US10479271B2

公开(公告)日：2019-11-19

申请号：US15777915

申请日：2016-10-24

Applicant: CLARION CO., LTD.

Inventor： Takeshi Hashimoto ,  Kenji Kono ,  Yasuhiro Fujita

IPC: B60Q9/00 ,  B60N2/90 ,  A47C7/74 ,  B60R11/02 ,  B60R21/00 ,  G08B21/00 ,  G08G1/16 ,  H04R1/00 ,  H04R3/00

Abstract: To allow the driver to identify a notification vibration even in a situation in which the notification vibration may be masked depending on the road conditions. A vehicle notification device (1) randomly extract one of a plurality of pieces of signal data by the number of vibrators (exciters EX1 to EX4), each of the pieces of signal data being different in a combination of an initial frequency and a target frequency and generates a plurality of sweep signals by changing the frequency from the initial frequency to the target frequency of the extracted piece of signal data in cycles. A plurality of notification vibrations whose frequencies change in different frequency ranges are outputted by outputting the generated sweep signals, individually from the vibrators (exciters EX1 to EX4).

公开(公告)号：US10375500B2

公开(公告)日：2019-08-06

申请号：US14901165

申请日：2014-06-19

Applicant: CLARION CO., LTD.

Inventor： Takeshi Hashimoto ,  Tetsuo Watanabe ,  Yasuhiro Fujita ,  Kazutomo Fukue

IPC: H04S7/00 ,  H04R5/00 ,  H04S1/00 ,  H03H17/00 ,  H03H17/02 ,  H03H17/08 ,  H04R3/04

Abstract: A propagation delay tune correction apparatus comprising a means for generating a frequency spectrum signal by performing short-term Fourier transform on an audio signal; a means for setting a propagation delay time for each of a plurality of predetermined frequency bands; a means for calculating a phase control amount for each of the plurality of predetermined frequency bands on a basis of the propagation delay time set for each of the plurality of predetermined frequency bands; a means for generating a phase control signal by smoothing the calculated phase control amount for each of the plurality of predetermined frequency bands; a means for controlling a phase of the frequency spectrum signal for each of the plurality of predetermined frequency bands on a basis of the generated phase control signal; and a means for generating an audio signal on which a propagation delay correction is performed by performing inverse short-term Fourier transform on the frequency spectrum signal of which the phase is controlled for each of the plurality of predetermined frequency bands.

公开(公告)号：US10046773B2

公开(公告)日：2018-08-14

申请号：US15736760

申请日：2016-06-28

Applicant: CLARION CO., LTD.

Inventor： Takeshi Hashimoto ,  Kenji Kono ,  Tetsuo Watanabe ,  Yasuhiro Fujita

IPC: B60W50/14 ,  B60N2/90 ,  B60W50/16 ,  H04R1/02 ,  B06B3/00 ,  G08B6/00

CPC classification number: B60W50/14 ,  B06B3/00 ,  B60N2/90 ,  B60R11/02 ,  B60R16/02 ,  B60T2201/08 ,  B60W50/16 ,  G08B6/00 ,  G08G1/16 ,  H04R1/025 ,  H04R1/028 ,  H04R3/12 ,  H04R5/023 ,  H04R2400/03 ,  H04R2499/13

Abstract: A notification device (1) includes a sweep signal generator (3) that generates a sweep signal by changing the frequency of a predetermined wave at a constant speed in a frequency band which allows exciters (EX1, EX2, EX3, EX4) to generate a vibration, a sweep signal divider (4) that divides the sweep signal into a higher-band sweep signal in a higher-frequency band including an overlap frequency band and a lower-band sweep signal in a lower-frequency band including the overlap frequency band, a signal output determination unit (2) that determines from which exciters the higher-band sweep signal and lower-band sweep signal should be outputted, and an output signal adjuster (9) that makes an adjustment for outputting the higher-band sweep signal and lower-band sweep signal from the exciters determined.

公开(公告)号：US09883303B2

公开(公告)日：2018-01-30

申请号：US14916567

申请日：2014-09-19

Applicant: CLARION CO., LTD.

Inventor： Takeshi Hashimoto ,  Kazutomo Fukue ,  Tetsuo Watanabe ,  Yasuhiro Fujita

IPC: H04R29/00 ,  G10L21/14 ,  G10L21/18 ,  G01H3/12 ,  H04S1/00

CPC classification number: H04R29/001 ,  G01H3/125 ,  G10L21/14 ,  G10L21/18 ,  H04R29/008 ,  H04S1/00 ,  H04S2400/15

Abstract: A sound field measuring device (1) obtains frequency characteristics by collecting output sound outputted from a pair of speakers (101a, 101b) installed at a narrow interval. A low-pass filter (22a) extracts low-range components of a first measurement signal. A high-pass filter (22b) extracts mid/high-range components of a second measurement signal different from the first measurement signal. A combined signal generation unit (22c) generates a combined signal by combining the low-range components of the first measurement signal and the mid/high-range components of the second measurement signal. An external output unit (6) outputs the first measurement signal to an audio system (102). A microphone (7) collects the first measurement signal and the combined signal simultaneously outputted from the pair of speakers. A Fourier transform unit (13) obtains the frequency characteristics of a sound field by Fourier transforming the signals collected.

公开(公告)号：US09280986B2

公开(公告)日：2016-03-08

申请号：US14381989

申请日：2013-01-23

Applicant: CLARION CO., LTD.

Inventor： Takeshi Hashimoto ,  Tetsuo Watanabe

IPC: H04B3/20 ,  G10L21/057 ,  H04R3/04 ,  G10K11/175 ,  G10L21/02 ,  G10H1/02 ,  G10H1/00 ,  G10L21/0364 ,  G10L19/025

CPC classification number: G10L21/057 ,  G10H1/0091 ,  G10H1/02 ,  G10H2210/281 ,  G10K11/175 ,  G10L19/025 ,  G10L21/02 ,  G10L21/0364 ,  H04R3/04 ,  H04R2227/007

Abstract: Provided is an acoustic signal processing device for producing an output sound meeting listener's preferences by adjusting attack sound, reverberation, and noise component. The device includes: an FFT section for transforming an input audio signal from a time-domain to a frequency-domain to calculate a frequency spectrum signal and for generating a first amplitude spectrum signal and a phase spectrum signal; an attack component controller (10) for controlling an attack component of the first amplitude spectrum signal to generate a second amplitude spectrum signal; a reverberation component controller (20) for controlling a reverberation component of the first amplitude spectrum signal to generate a third amplitude spectrum signal; a first adding section (40) for synthesizing the first amplitude spectrum signal, the second amplitude spectrum signal, and the third amplitude spectrum signal to generate a fourth amplitude spectrum signal; and an IFFT section for generating an audio signal transformed from a frequency domain to a time domain based on the fourth amplitude spectrum signal and the phase spectrum signal generated by the FFT section.

Abstract translation: 提供一种声音信号处理装置，用于通过调整攻击声，混响和噪声分量来产生会议听众的喜好的输出声音。 该装置包括：FFT部分，用于将输入音频信号从时域变换到频域，以计算频谱信号，并产生第一振幅谱信号和相位谱信号; 攻击部件控制器（10），用于控制第一幅度频谱信号的攻击分量以产生第二幅度频谱信号; 混响分量控制器（20），用于控制第一幅度频谱信号的混响分量以产生第三幅度频谱信号; 用于合成第一幅度频谱信号的第一加法部分（40），第二幅度频谱信号和第三幅度频谱信号以产生第四幅度频谱信号; 以及IFFT部分，用于基于由FFT部分生成的第四幅度频谱信号和相位频谱信号，生成从频域变换到时域的音频信号。