专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP3502594B2 Vehicle for an active noise reduction device 有权
公开(公告)号：JP3502594B2
公开(公告)日：2004-03-02
申请号：JP2000152314
申请日：2000-05-24
申请人：本田技研工業株式会社 , 松下電器産業株式会社
发明人：由男中村 , 敏郎井上 , 久佐野 , 敏彦大橋 , 賢一寺井 , 剛山下 , 裕之橋本 , 勲角張 , 高橋　　彰
IPC分类号： F01N1/00 , G10K11/178 , H04R3/00 , H04R3/02
CPC分类号： G10K11/178 , G10K2210/12821 , G10K2210/3039
摘要： An active noise control system for reducing road noise of low frequency generated inside the cabin (106) of a vehicle (105) is provided. The active noise control system includes a noise detector (101), a signal generator (102) for processing the input noise signal to generate a signal for producing noise canceling waves, a limiting amplifier (103) having a specified threshold value for variably amplifying the processed signal so that the amplitude of output signal will not exceed the threshold value, and an electrical acoustic converter (104) for producing noise canceling acoustic waves in accordance with the output signal.

2. 发明专利

JP3615983B2 Vehicle noise control device 有权
公开(公告)号：JP3615983B2
公开(公告)日：2005-02-02
申请号：JP2000100868
申请日：2000-04-03
申请人：本田技研工業株式会社 , 松下電器産業株式会社
发明人：由男中村 , 敏郎井上 , 久佐野 , 賢一寺井 , 剛山下 , 裕之橋本 , 角張勲 , 高橋　　彰
IPC分类号： B60R11/02 , G10K11/178 , H04B1/08 , H04R3/00
CPC分类号： H04B1/082 , G10K11/178
摘要： In an active noise control apparatus in which an audio signal and a noise control signal are mixed to thereby sound a loudspeaker inside a motor vehicle, a general-purpose audio head unit cannot conventionally be freely changed for the one already mounted on the motor vehicle. As a solution, an active noise control unit is provided with a buffer amplifier and a mixer. An audio signal amplified by a power amplifier in an audio head unit is adjusted in level by the buffer amplifier such that a level of an audio signal outputted after amplification by the first amplifier becomes substantially equal to a level of the audio signal outputted from the audio head unit. Then, at the mixer, a noise control signal outputted from an active noise controller is added to an audio signal outputted from the buffer amplifier. Therefore, any audio head unit can be freely changed for the one already mounted on the vehicle as long as the audio head unit contains therein a power amplifier.

3. 发明专利

JP4031875B2 Active vibration noise suppression apparatus 有权
公开(公告)号：JP4031875B2
公开(公告)日：2008-01-09
申请号：JP26364398
申请日：1998-09-17
申请人：本田技研工業株式会社
发明人：敏郎井上 , 久佐野 , 剛山下
IPC分类号： B60R11/02 , G10K11/178 , F01N1/00 , F16F15/02 , G05D19/02
摘要： PROBLEM TO BE SOLVED: To enable suppressing vibration noise independently of variation of a vibration noise source. SOLUTION: This device 4 is constituted so that a cosine wave signal and a sine wave signal synchronizing with a frequency of an engine pulse are generated from a cosine wave generator 6 and a sine wave generator 7, the generated sine wave signal is multiplied by the generated cosine signal and an adaptive notch filter coefficient W0 by a coefficient multiplier 9 in an adaptive notch filter 8 for suppressing a vibration noise, the generated sine wave signal is multiplied by an adaptive notch filer coefficient W1 by a coefficient multiplier 10, an output in which output of the coefficient multipliers 9 and 10 are added by an adder 11 is outputted to a secondary vibration noise generator 3, a secondary vibration noise is generated, and a vibration noise is canceled. In this case, update quantity of an adaptive notch filter coefficient is changed based on a step size parameter varied based on amplitude of an output of the adaptive notch filter 8 directly before updating an adaptive notch filter coefficient, and thus, a vibration noise based on an engine pulse is suppressed.

4. 发明专利

JP3943730B2 Active body vibration suppression control device 有权
公开(公告)号：JP3943730B2
公开(公告)日：2007-07-11
申请号：JP29356898
申请日：1998-10-15
申请人：本田技研工業株式会社 , 東海ゴム工業株式会社
发明人：久佐野 , 吉範安本 , 勝博後藤 , 賢渡辺 , 勝久矢野
IPC分类号： B60K5/12 , F16F15/02 , G05B11/36 , G05B13/02

5. 发明专利

JP3471368B2 Active vibration control device 失效
公开(公告)号：JP3471368B2
公开(公告)日：2003-12-02
申请号：JP18361991
申请日：1991-06-28
申请人：本田技研工業株式会社
发明人：光勇中村 , 久佐野 , 剛山下
IPC分类号： F01N1/00 , B60R11/02 , G10K11/16 , G10K11/178

6. 发明专利

JP3661063B2 Vehicular active vibration noise control device 失效
公开(公告)号：JP3661063B2
公开(公告)日：2005-06-15
申请号：JP7143594
申请日：1994-03-16
申请人：本田技研工業株式会社
发明人：久佐野 , 秀司沢田 , 孝之辻
IPC分类号： B60R11/02 , F01N1/00 , F16F15/02 , G10K11/16 , G10K11/178 , H03H17/00 , H03H17/06 , H03H21/00

7. 发明专利

JP3471370B2 Active vibration control device 失效
公开(公告)号：JP3471370B2
公开(公告)日：2003-12-02
申请号：JP19097091
申请日：1991-07-05
申请人：本田技研工業株式会社
发明人：久佐野 , 秀司沢田
IPC分类号： F01N1/00 , F16F15/02 , G10K11/178
CPC分类号： G10K11/178 , G10K2210/128 , G10K2210/1282 , G10K2210/12821 , G10K2210/129 , G10K2210/3028 , G10K2210/3032 , G10K2210/3046 , G10K2210/3051 , G10K2210/501 , G10K2210/512
摘要： An adaptive control circuit is responsive to a reference signal, i.e. an output from a sensor which senses vibration from a vibration source, for generating a cancelling signal having a transfer characteristic inverse to a transfer characteristic of vibration from the vibration source to a human body. A loud speaker is responsive to an output from the adaptive control circuit for generating cancelling vibration. A microphone senses an error between the vibration from the vibration source and the cancelling vibration from the loud speaker and generates an error signal indicative of the sensed error. The adaptive control circuit varies the inverse transfer characteristic by an amount corresponding to the error signal so as to minimize the above error. A divided processing circuit divides the output from the sensor into vibration components falling respectively within a plurality of frequency ranges and separately processes the divided vibration components. The divided processing circuit has a sampling circuit which samples the divided vibration components at different sampling periods between the above frequency ranges.

8. 发明专利

JP4275764B2 Noise control devices and vibration control device 失效
公开(公告)号：JP4275764B2
公开(公告)日：2009-06-10
申请号：JP10283598
申请日：1998-04-14
申请人：パナソニック株式会社 , 本田技研工業株式会社
发明人：久佐野 , 賢一寺井 , 裕之橋本 , 潤田中 , 勲角張
IPC分类号： G10K11/178 , H03H17/02 , H03H21/00
摘要： PROBLEM TO BE SOLVED: To provide a noise control device and a vibration control device which have a high reduction effect of noise or vibration even in an environment where they are actually highly variable, by using a wide-band noise measuring signal with little variation in frequency and amplitude, converging an adaptive filter in a feedback loop, determining a coefficient from n accurate convergence result, and fixing it. SOLUTION: These devices have an error detector 2 detecting an error signal between control sound from a control loudspeaker 1 and noise from a noise source 12, a wide-band noise generator 3, a digital filter 9 inputting thereto an output of a subtractor 7, a coefficient updating unit 10 inputting thereto output signals of the digital filter 9 and an adder 5. And, before operating the devices in a noisy environment, input and output of switches 4 and 11 are closed respectively and are opened after the coefficient of the adaptive filter 8 is updated by a the coefficient updating unit 10, and transfer functions of the digital filter 6 and the adaptive filter B are approximated to a transfer function from the control speaker 1 up to the error detector 2. And then, noise coming to the noise detector 2 is controlled in noisy environment by control sound from the control loudspeaker 1.

9. 发明专利

JP3580972B2 Active vibration suppression apparatus 失效
公开(公告)号：JP3580972B2
公开(公告)日：2004-10-27
申请号：JP1697197
申请日：1997-01-30
申请人：本田技研工業株式会社
发明人：久佐野 , 修一足立
IPC分类号： B60R11/02 , F01N1/00 , F16F15/02 , G05D19/02 , G10K11/16 , G10K11/178 , H03H17/00
摘要： PROBLEM TO BE SOLVED: To provide an active oscillation suppressing device capable of increasing the noise reduction amount in a sound field by feedforward control and feedback control. SOLUTION: This device is provided with an oscillation detector 1, which generates a reference signal based on oscillation from an oscillation generating source, speaker 4 provided in a sound field, microphone 5 which detects oscillation in the sound field provided in the sound field, feedforward controller 2, which inputs the reference signal and suppresses the oscillation in the sound field, feedback controller 6, which receives a signal outputted from the microphone 5 and suppresses the oscillation in the sound field, and arithmetic unit 3, which adds an output signal from the feedforward controller 2 and an output signal from the feedback controller 6 and drives the speaker 4 by the added output. Then, the cycle of the sampling of a signal to be inputted to the feedforward controller 2 is made longer than the cycle of the sampling of a signal to be inputted to the feedback controller 6.

10. 发明专利

JP3619056B2 Active vibration isolation device 有权
公开(公告)号：JP3619056B2
公开(公告)日：2005-02-09
申请号：JP14808699
申请日：1999-05-27
申请人：本田技研工業株式会社 , 東海ゴム工業株式会社
发明人：久佐野 , 勝博後藤 , 英樹松岡 , 賢渡辺 , 顕片桐 , 勝久矢野 , 吉彦萩野
IPC分类号： B60K5/12 , F16F13/26

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式