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1. 发明授权

US07013381B2 Function-variable type digital signal processing apparatus, and method of and program for controlling the same 失效
公开(公告)号：US07013381B2
公开(公告)日：2006-03-14
申请号：US10315834
申请日：2002-12-10
申请人： Katsushi Yamada
发明人： Katsushi Yamada
IPC分类号： G06F15/163 , G06F15/76
CPC分类号： G06F15/7867
摘要： Herein disclosed is a function-variable type DSP apparatus comprising: a storage section for storing a plurality of DSP microprogram parts; and a plurality of DSP executing sections each for executing the DSP microprogram parts to implement a DSP function, each of the DSP microprogram parts being executable by each of the DSP executing sections to perform a set of steps necessary to implement a DSP base function forming part of a DSP function, whereby the DSP executing sections are operative to receive the DSP microprogram parts simultaneously from the storage section, and selectively execute the DSP microprogram parts in a sequence to respectively implement desired DSP functions.

2. 发明授权

US07774201B2 Acoustic device with first and second gain setting units 有权
标题翻译：具有第一和第二增益设置单元的声学设备
公开(公告)号：US07774201B2
公开(公告)日：2010-08-10
申请号：US11569448
申请日：2005-05-23
申请人： Katsushi Yamada
发明人： Katsushi Yamada
IPC分类号： H03G3/20 , G10L21/00
CPC分类号： H03G3/301
摘要： A purpose of the present invention is to provide an acoustic apparatus capable of automatically setting a gain which is suitable for both an averaged signal strength of input voice and an instantaneous signal strength thereof, capable of easily recognizing an effect by a user, which is achieved by switching a turn-ON and a turn-OFF of an automatic gain variable operation, and further capable of readily recognizing a change in gain values by the user. The acoustic apparatus is provided with a gain setting unit (20) for setting a gain from an averaged voice strength within a predetermined time period, and another gain setting unit (22) for setting a gain in response to an instantaneous signal strength thereof; and the acoustic apparatus adjusts a signal strength of an audio input signals (Si) based upon a gain “C” obtained by multiplying a gain “A” by another gain “B.”
摘要翻译：本发明的目的是提供一种能够自动设定适于输入语音的平均信号强度和其瞬时信号强度两者的能够容易地识别用户的效果的增益的声学装置，通过切换自动增益可变操作的导通和关闭，并且还能够容易地识别用户的增益值的变化。声学装置设置有用于根据预定时间段内的平均语音强度设定增益的增益设定单元（20）和用于根据其瞬时信号强度设定增益的另一增益设定单元（22）。并且声学装置基于通过将增益“A”乘以另一增益“B而获得的增益”C“来调整音频输入信号（Si）的信号强度。

3. 发明授权

US5796847A Sound reproduction apparatus 失效
标题翻译：声音再现装置
公开(公告)号：US5796847A
公开(公告)日：1998-08-18
申请号：US522925
申请日：1995-09-01
申请人： Yuji Kaihotsu , Toshikazu Chiba , Katsushi Yamada
发明人： Yuji Kaihotsu , Toshikazu Chiba , Katsushi Yamada
IPC分类号： H03G3/32 , H03G3/20
CPC分类号： H03G3/32
摘要： A sound reproduction apparatus for a vehicle comprises: a sound source for generating a sound signal; a sound reproduction portion for reproducing a sound from the sound signal into a compartment of the vehicle; a microphone, provided in the compartment, for detecting the sound transmitted in the compartment and environmental sound noise and for generating a sound detection signal; a detection portion for detecting a magnitude of the environmental sound noise by detecting a difference between magnitudes of the sound signal and the sound detection signal; and a volume control portion for effecting volume controlling of the sound signal according to the magnitude of the environmental sound noise from the detection portion. An equalizing portion substantially equalizing gains of signal paths of the sound signal and sound detection signal supplied to the detection portion in a substantially silent condition of the compartment is provided. For accurate equalizing of gains, a reference sound signal source is provided. A part of frequency range of the sound signal is enhanced according to the sound noise. The volume controlling with the environmental sound noise is modified according to a peak level, an external volume control signal. The noise level may be classified. A large change in the volume within a short interval is avoided.
摘要翻译：用于车辆的声音再现装置包括：用于产生声音信号的声源; 声音再现部分，用于将声音信号再现到车辆的隔间; 设置在隔室中的麦克风，用于检测在隔间中传播的声音和环境声音噪声，并产生声音检测信号; 检测部，其通过检测声音信号的大小与声音检测信号的差异来检测环境声音噪声的大小; 以及音量控制部分，用于根据来自检测部分的环境声音噪声的大小进行声音信号的音量控制。提供均衡部分，其基本上均衡在隔室的基本无声状态下提供给检测部分的声音信号和声音检测信号的信号路径的增益。为了准确地均衡增益，提供了参考声音信号源。声音信号的频率范围的一部分根据声音噪声而增强。根据峰值电平，外部音量控制信号修改环境声音噪音的音量。噪声水平可以分类。避免了短时间内的体积变化很大。

4. 发明申请

US20080015851A1 Acoustic Device 有权
标题翻译：声学装置
公开(公告)号：US20080015851A1
公开(公告)日：2008-01-17
申请号：US11569448
申请日：2005-05-23
申请人： Katsushi Yamada
发明人： Katsushi Yamada
IPC分类号： H03G3/00
CPC分类号： H03G3/301
摘要： A purpose of the present invention is to provide an acoustic apparatus capable of automatically setting a gain which is suitable for both an averaged signal strength of input voice and an instantaneous signal strength thereof, capable of easily recognizing an effect by a user, which is achieved by switching a turn-ON and a turn-OFF of an automatic gain variable operation, and further capable of readily recognizing a change in gain values by the user. The acoustic apparatus is provided with a gain setting unit (20) for setting a gain from an averaged voice strength within a predetermined time period, and another gain setting unit (22) for setting a gain in response to an instantaneous signal strength thereof; and the acoustic apparatus adjusts a signal strength of an audio input signals (Si) based upon a gain “C” obtained by multiplying a gain “A” by another gain “B.”
摘要翻译：本发明的目的是提供一种能够自动设定适于输入语音的平均信号强度和其瞬时信号强度两者的能够容易地识别用户的效果的增益的声学装置，通过切换自动增益可变操作的导通和关闭，并且还能够容易地识别用户的增益值的变化。声学装置设置有用于根据预定时间段内的平均语音强度设定增益的增益设定单元（20）和用于根据其瞬时信号强度设定增益的另一增益设定单元（22）。并且声学装置基于通过将增益“A”乘以另一增益“B而获得的增益”C“来调整音频输入信号（Si）的信号强度。

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