公开(公告)号：US08019086B2

公开(公告)日：2011-09-13

申请号：US11560390

申请日：2006-11-16

Applicant: Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

Inventor： Ryo Tsutsui ,  Yoshihide Iwata ,  Steven D. Trautmann

IPC: H04R5/00

CPC classification number: H04S5/00 ,  H04S2420/07

Abstract: A method for creating a stereophonic sound image out of a monaural signal combines two sub-methods. Comb filters decorrelate the left and right channel signals. Intra-aural difference cues, such as an Intra-Aural Time Difference (ITD) and an Intra-aural Intensity Difference (IID) separated channels. Strict complementary (SC) linear phase FIR filters divide the incoming monaural signal into three frequency band separation. The comb filters and ITD/IID applied to the low and high frequency bands create a simulated stereo sound image for the instruments other than human voice. Listening tests indicate that this invention provides a wider stereo sound image than previous methods, while retaining human voice centralization. Since the comb filter solution and ITD/IID solution can share the same filter bank, the computational cost of this method is almost the same as the previous method.

Abstract translation: 用于从单声道信号创建立体声声像的方法组合了两种子方法。 梳状滤波器解除左右声道信号的相关性。 声内差异提示，例如内耳时间差（Intra-Aural Time Difference，ITD）和视听间强度差异（IID）分离频道。 严格互补（SC）线性相位FIR滤波器将输入的单声道信号分为三个频带分离。 梳状滤波器和应用于低频和高频带的ITD / IID为除人声外的乐器创建了模拟立体声图像。 听力测试表明，本发明提供了比以前的方法更宽的立体声图像，同时保持人声集中。 由于梳状滤波器解决方案和ITD / IID解决方案可以共享相同的滤波器组，因此该方法的计算成本与以前的方法几乎相同。

公开(公告)号：US07676048B2

公开(公告)日：2010-03-09

申请号：US11128064

申请日：2005-05-11

Applicant: Ryo Tsutsui

Inventor： Ryo Tsutsui

IPC: H03G5/00

CPC classification number: H03G5/025

Abstract: Graphic equalizer as a cascade of equalization filters with the gain of each individual filter compensated for the gain leakage from other filters. A linear approximation allows individual filter gains to be set to give desired frequency responses.

Abstract translation: 图形均衡器作为级联的均衡滤波器，每个滤波器的增益补偿了来自其他滤波器的增益泄漏。 线性近似允许设置单个滤波器增益以产生期望的频率响应。

公开(公告)号：US20090062945A1

公开(公告)日：2009-03-05

申请号：US12193678

申请日：2008-08-18

Applicant: Steven David Trautmann ,  Atsuhiro Sakurai ,  Ryo Tsutsui

Inventor： Steven David Trautmann ,  Atsuhiro Sakurai ,  Ryo Tsutsui

IPC: G06F17/00

CPC classification number: G10L19/093

Abstract: Methods, digital systems, and computer readable media are provided for estimating change of amplitude and frequency in a digital audio signal by transforming a frame of the digital audio signal to the frequency domain, locating a frequency peak in the transformed frame, determining an interpolated peak of the located frequency peak, computing inner products of a portion of the transformed frame about the interpolated peak with a plurality of test signals, and estimating change of amplitude and change of frequency for the frequency peak from results of the inner products.

Abstract translation: 提供方法，数字系统和计算机可读介质，用于通过将数字音频信号的帧变换为频域来估计数字音频信号中的幅度和频率的变化，在变换帧中定位频率峰值，确定内插峰值 通过多个测试信号来计算关于内插峰值的变换帧的一部分的内积，以及从内积的结果估计频率峰值的频率变化和频率变化。

公开(公告)号：US08976980B2

公开(公告)日：2015-03-10

申请号：US13427614

申请日：2012-03-22

Applicant: Ryo Tsutsui ,  Keitaro Hashimoto

Inventor： Ryo Tsutsui ,  Keitaro Hashimoto

IPC: H03G5/00 ,  H03C1/00

CPC classification number: H03C1/00 ,  H04R2217/03

Abstract: Methods and systems for amplitude modulation in a parametric speaker system are provided that perform truncated double sideband (TDSB) frequency modulation of audio signal in which most of the processing is performed in the frequency domain, thus permitting use of fast processing techniques for amplitude modulation (AM) and filtering and reducing computation cost over time domain processing. A maximum envelope value of the time domain audio signal may be to the carrier signal in the frequency domain that avoids emitting the carrier signal when the input signal level is low or mute. The application of the envelope value may be smoothed to reduce discontinuity at input block boundaries.

Abstract translation: 提供了参数化扬声器系统中用于幅度调制的方法和系统，其执行音频信号的截断双边带（TDSB）频率调制，其中大部分处理在频域中执行，因此允许使用用于振幅调制的快速处理技术 AM），并根据时域处理过滤和降低计算成本。 时域音频信号的最大包络值可以是当输入信号电平低或静音时避免发射载波信号的频域中的载波信号。 可以平滑包络值的应用以减少输入块边界处的不连续性。

公开(公告)号：US08782109B2

公开(公告)日：2014-07-15

申请号：US13228679

申请日：2011-09-09

Applicant: Ryo Tsutsui

Inventor： Ryo Tsutsui

IPC: G06F17/10 ,  H03H17/02 ,  H03H17/06

CPC classification number: H03H17/0628 ,  H03H17/0275 ,  H03H17/028

Abstract: Methods for sample rate conversion are provided that use a polynomial interpolator with minimax stopband attenuation. A method for sample rate conversion of an input signal is provided that uses a time-varying polyphase filter having a discrete polyphase index m. Another method for sample rate conversion of an input signal is provided that uses a time-varying polyphase filter having a continuous polyphase index τ. In these methods, an output time index is mapped to an input sample index and the polyphase index, the polynomial coefficients of a polyphase filter are computed using the polyphase index, and the polyphase filter is applied to an input sample at the input sample index to generate the output sample at the output time index.

Abstract translation: 提供了采用速率转换的方法，其使用具有最小极限阻带衰减的多项式内插器。 提供了一种使用具有离散多相指数m的时变多相滤波器的输入信号的采样率转换方法。 提供了输入信号的采样率转换的另一种方法，其使用具有连续多相指数τ的时变多相滤波器。 在这些方法中，将输出时间索引映射到输入样本索引和多相索引，使用多相索引计算多相滤波器的多项式系数，并将多相滤波器应用于输入样本索引处的输入样本 在输出时间索引下生成输出样本。

公开(公告)号：US20120066280A1

公开(公告)日：2012-03-15

申请号：US13228679

申请日：2011-09-09

Applicant: Ryo Tsutsui

Inventor： Ryo Tsutsui

IPC: G06F17/10

CPC classification number: H03H17/0628 ,  H03H17/0275 ,  H03H17/028

Abstract: Methods for sample rate conversion are provided that use a polynomial interpolator with minimax stopband attenuation. A method for sample rate conversion of an input signal is provided that uses a time-varying polyphase filter having a discrete polyphase index m. Another method for sample rate conversion of an input signal is provided that uses a time-varying polyphase filter having a continuous polyphase index τ. In these methods, an output time index is mapped to an input sample index and the polyphase index, the polynomial coefficients of a polyphase filter are computed using the polyphase index, and the polyphase filter is applied to an input sample at the input sample index to generate the output sample at the output time index.

Abstract translation: 提供了采用速率转换的方法，其使用具有最小极限阻带衰减的多项式内插器。 提供了一种使用具有离散多相指数m的时变多相滤波器的输入信号的采样率转换方法。 提供了输入信号的采样率转换的另一种方法，其使用具有连续多相指数τ的时变多相滤波器。 在这些方法中，将输出时间索引映射到输入样本索引和多相索引，使用多相索引计算多相滤波器的多项式系数，并将多相滤波器应用于输入样本索引处的输入样本 在输出时间索引下生成输出样本。

公开(公告)号：US07676043B1

公开(公告)日：2010-03-09

申请号：US11364116

申请日：2006-02-28

Applicant: Ryo Tsutsui ,  Ivan Setiawan ,  Yoshihide Iwata

Inventor： Ryo Tsutsui ,  Ivan Setiawan ,  Yoshihide Iwata

IPC: H04R5/00

CPC classification number: H04S1/002 ,  G10L21/038

Abstract: Bandwidth expansion for audio signals by frequency band translations plus adaptive gains to create higher frequencies; use of a common channel for both stereo channels limits computational complexity. Adaptive cut-off frequency determination by power spectrum curve analysis, and bass expansion by both fundamental frequency illusion and equalization.

公开(公告)号：US20120243708A1

公开(公告)日：2012-09-27

申请号：US13427614

申请日：2012-03-22

Applicant: Ryo Tsutsui ,  Keitaro Hashimoto

Inventor： Ryo Tsutsui ,  Keitaro Hashimoto

IPC: H03G5/00

CPC classification number: H03C1/00 ,  H04R2217/03

Abstract: Methods and systems for amplitude modulation in a parametric speaker system are provided that perform truncated double sideband (TDSB) frequency modulation of audio signal in which most of the processing is performed in the frequency domain, thus permitting use of fast processing techniques for amplitude modulation (AM) and filtering and reducing computation cost over time domain processing. A maximum envelope value of the time domain audio signal may be to the carrier signal in the frequency domain that avoids emitting the carrier signal when the input signal level is low or mute. The application of the envelope value may be smoothed to reduce discontinuity at input block boundaries.

Abstract translation: 提供了参数化扬声器系统中用于幅度调制的方法和系统，其执行音频信号的截断双边带（TDSB）频率调制，其中大部分处理在频域中执行，因此允许使用用于振幅调制的快速处理技术 AM），并根据时域处理过滤和降低计算成本。 时域音频信号的最大包络值可以是当输入信号电平低或静音时避免发射载波信号的频域中的载波信号。 可以平滑包络值的应用以减少输入块边界处的不连续性。

公开(公告)号：US08210728B2

公开(公告)日：2012-07-03

申请号：US12335954

申请日：2008-12-16

Applicant: Ryo Tsutsui ,  Yuichiro Matsuo ,  Yoshihiro Shimada ,  Mitsuo Harada

Inventor： Ryo Tsutsui ,  Yuichiro Matsuo ,  Yoshihiro Shimada ,  Mitsuo Harada

IPC: F21V7/04 ,  F21V9/10 ,  G05D25/02

CPC classification number: G01N21/6428 ,  A61B5/0059 ,  G01N21/6458 ,  G01N2021/6419 ,  G01N2021/6484 ,  G01N2201/0624 ,  G01N2201/0627 ,  G02B21/06

Abstract: An illumination apparatus that includes a plurality of LEDs of different center emission wavelengths, a photodetector, a path sharing device for introducing light emitted from the plurality of LEDs into the common optical path, a light-introducing device located on the common optical path to introduce part of the light emitted from the plurality of LEDs passing through the common optical path into the photodetector, a feedback controller controlling turning-on states of the LEDs over preset states in accordance with the amount of light emitted from the plurality of LEDs detected by the photodetector, and an illumination light supplying device located on the common optical path to supply light which is emitted from the plurality of LEDs to pass through the common optical path and is not introduced into the photodetector through the light-introducing device, as illumination light for a cellular analysis.

Abstract translation: 一种照明装置，包括具有不同中心发射波长的多个LED，光电检测器，用于将从多个LED发射的光引入公共光路的路径共享装置，位于公共光路上的光导入装置， 从通过公共光路的多个LED发射的光的一部分光进入光电检测器，反馈控制器根据由多个LED检测到的多个LED发射的光量，控制LED在预设状态下的导通状态 光电检测器和位于公共光路上的照明光供应装置，用于提供从多个LED发射的光，以通过公共光路，并且不通过光导入装置引入到光电检测器中，作为照明光， 细胞分析。

公开(公告)号：US08142270B2

公开(公告)日：2012-03-27

申请号：US12351136

申请日：2009-01-09

Applicant: Ryo Tsutsui ,  Hiroyuki Uchida

Inventor： Ryo Tsutsui ,  Hiroyuki Uchida

IPC: A63F9/24

CPC classification number: G07F17/3276 ,  G07F17/32

Abstract: A game system for executing a competition game in which a plurality of players compete. The game system comprises a competition score storing unit; a handicap information storing unit; a matching control unit; a rank deciding unit; a handicap selecting unit; a handicap deciding unit; and a handicap setting unit. The game system allows players of different levels to enjoy a game together.

Abstract translation: 一种用于执行多个玩家竞争的比赛的游戏系统。 游戏系统包括比赛得分存储单元; 障碍信息存储单元; 匹配控制单元; 排名决定单位 障碍选择单位; 障碍决定单位; 和障碍设定单元。 游戏系统允许不同级别的玩家一起玩游戏。