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1. 发明申请

US20100249958A1 SYSTEM FOR SPORTS ACTIVITY 审中-公开
标题翻译：体育活动系统
公开(公告)号：US20100249958A1
公开(公告)日：2010-09-30
申请号：US12740963
申请日：2008-10-31
申请人： Timo Salmi , Tomi Salmi , Antti Jylhä , Vesa Välimäki , Cumhur Erkut
发明人： Timo Salmi , Tomi Salmi , Antti Jylhä , Vesa Välimäki , Cumhur Erkut
IPC分类号： G06F19/00
CPC分类号： A63B24/0021 , A63B49/00 , A63B60/46 , A63B63/00 , A63B69/0002 , A63B69/002 , A63B69/0024 , A63B69/0097 , A63B2024/0028 , A63B2024/0031 , A63B2024/0037 , A63B2024/0056 , A63B2220/53 , A63B2220/64 , A63B2220/80 , A63B2220/833
摘要： A system for a sports activity, which system is adapted to detect potential game contacts that include contacts between games equipment (1) and a games object (2) and/or contacts between a games object (2) and a target surface (5), and the system comprises sensor means (3a, 3b) adapted to detect vibrations caused by potential game contacts and to convert these vibrations into sensor signals. The system is adapted to define the value of the sensor signal at several consecutive discrete time instants, define for a sensor signal section within a time frame k that contains N sensor signal values an energy value quantity E[k] that is related to the energy of the sensor signal section, repeat the above step of defining the energy value quantity of the sensor signal section for several consecutive time frames, and detect a potential game contact by utilizing a detection function D that is obtained by a linear combination of energy value quantities of sensor signal sections contained in consecutive time frames by using the formula D  [ k ] = ∑ i = 0 K - 1   c i  E  [ k - i ] , wherein K is the number of energy value quantities used in calculation and an integer equal to or greater than two, and ci is a weighting coefficient for the energy value quantity E[k−i], whereby the detection of a potential game contact in the time frame k is based on comparing the value D[k] of the detection function D corresponding to the time frame k is compared with a threshold value.
摘要翻译：一种用于体育活动的系统，该系统适于检测包括游戏设备（1）和游戏对象（2）之间的接触的潜在游戏联系和/或游戏对象（2）和目标表面（5）之间的接触，，并且系统包括适于检测由潜在游戏接触引起的振动并将这些振动转换为传感器信号的传感器装置（3a，3b）。该系统适于在几个连续的离散时刻定义传感器信号的值，为包含N个传感器信号值的时间帧k内的传感器信号部分定义与能量相关的能量值量E [k] 重复上述确定几个连续时间帧的传感器信号部分的能量值的步骤，并利用通过能量值的线性组合获得的检测函数D来检测潜在的游戏接触通过使用公式D [k] =Σi = 0 K -1表示包含在连续时间帧中的传感器信号部分，其中K是计算中使用的能量值数量和等于或大于2的整数，ci是能量值量E [k-i]的加权系数，由此在时间框架k中的潜在游戏接触的检测是基于将值D 将与时间帧k对应的检测功能D的[k]与阈值进行比较。

2. 发明授权

US07742607B2 Method for designing a modal equalizer for a low frequency sound reproduction 有权
标题翻译：用于设计低频声音再现的模态均衡器的方法
公开(公告)号：US07742607B2
公开(公告)日：2010-06-22
申请号：US10293600
申请日：2002-11-14
申请人： Matti Karjalainen , Aki Mäkivirta , Poju Antsalo , Vesa Välimäki
发明人： Matti Karjalainen , Aki Mäkivirta , Poju Antsalo , Vesa Välimäki
IPC分类号： H04B3/20 , H04B15/00
CPC分类号： H04S7/307 , H04S7/302 , H04S7/305
摘要： In a room with strong low-frequency modes the control of excessively long decays is problematic or impossible with conventional passive means. In this patent application a systematic methodology is presented for active modal equalization able to correct the modal decay behaviour of a loudspeaker-room system. Two methods of modal equalization are proposed. The first method modifies the primary sound such that modal decays are controlled. The second method uses separate primary and secondary radiators and controls modal decays with sound fed into at least one secondary radiator. Case studies of the first method of implementation are presented.
摘要翻译：在具有强低频模式的房间中，过度长衰减的控制是常规被动手段存在的问题或不可能的。在该专利申请中，提出了一种用于有效模态均衡的系统方法，其能够校正扬声器室系统的模态衰减行为。提出了两种模态均衡方法。第一种方法修改主声，使模态衰减得到控制。第二种方法使用单独的主和辅助散热器并且控制模态衰减，声音馈送到至少一个次级辐射器。介绍了第一种实施方法的案例研究。

3. 发明授权

US07286674B2 Method for designing a modal equalizer for a low frequency audible range especially for closely positioned modes 有权
标题翻译：用于设计用于低频听觉范围的模态均衡器的方法，特别是对于紧密定位的模式
公开(公告)号：US07286674B2
公开(公告)日：2007-10-23
申请号：US10481114
申请日：2003-04-22
申请人： Matti Karjalainen , Poju Antsalo , Vesa Välimäki , Aki Mäkivirta
发明人： Matti Karjalainen , Poju Antsalo , Vesa Välimäki , Aki Mäkivirta
IPC分类号： H04B3/20
CPC分类号： H03G5/165 , H04R3/04
摘要： The present invention relates to a method for designing a modal equalizer (5) for a low frequency audible range, typically for frequencies below 200 Hz for a predetermined space (1) (listening room) and location (2) (location in the room) therein, in which method modes to be equalized are determined at least by center frequency and decay rate of each mode, creating a discrete-time description of the determined modes, and determining equalizer filter coefficients on the basis of the discrete-time description of the determined modes, and forming the equalizer (5) by means of a digital filter by defining the filter coefficients on the basis of the properties of the modes. In accordance with the invention following method steps are used: forming a mode detection function (G(Ω)), defining the highest peak angular frequency Ωp of the function (G(Ω)), making AR analysis of predefined order for solving the poles of the mode representing the highest peak angular frequency, selecting the pole closest to point ejΩp on the unit circle, determining the decay time of the mode and if is over a predetermined level, designing a modal correction filter for this mode, and repeating this procedure until no decay time exceeds over the predetermined level, and each individual filter obtained in previous stages of the method is combined to a cascaded filter.
摘要翻译：本发明涉及一种用于低频可听范围的模态均衡器（5）的设计方法，通常对于预定空间（1）（听音室）和位置（2）（房间中的位置），低于200Hz的频率，其中，至少通过每种模式的中心频率和衰减速率来确定要均衡的方法，产生所确定的模式的离散时间描述，以及基于离散时间描述确定均衡器滤波器系数并且通过基于模式的属性定义滤波器系数，通过数字滤波器形成均衡器（5）。根据本发明，使用以下方法步骤：形成模式检测函数（G（Ω）），定义函数（G（ω））的最高峰值角频率Ω2，使得AR 分析用于求解表示最高峰值角频率的模式的极点的预定义顺序，选择最接近单位圆上的点e JOmegap 的极点，确定模式的衰减时间以及是否超过为该模式设计模态校正滤波器，并且重复该过程直到没有衰减时间超过预定值，并且将该方法的先前阶段中获得的每个单独滤波器组合到级联滤波器。

4. 发明授权

US06847722B1 Method and equipment for attenuating sound in a duct 失效
标题翻译：用于衰减管道中声音的方法和设备
公开(公告)号：US06847722B1
公开(公告)日：2005-01-25
申请号：US09508404
申请日：1998-09-09
申请人： Seppo Uosukainen , Vesa Välimäki , Kari Kirjavainen , Jukka Lekkala , Hannu Nykänen
发明人： Seppo Uosukainen , Vesa Välimäki , Kari Kirjavainen , Jukka Lekkala , Hannu Nykänen
IPC分类号： G10K11/178 , A61F11/06 , G10K11/06 , H03B29/00
CPC分类号： G10K11/178 , G10K2210/112 , G10K2210/3027 , G10K2210/3212
摘要： The invention relates to a method and an equipment for attenuating sound in a duct. Sound propagating in a duct is detected by means of a detector (2) and attenuated by using two successive monopole elements (3, 4) in such a way that both elements function as a dipole approximation and the elements are also used to approximatively produce the monopole radiation needed. A dipole control signal is fed to both elements (3, 4) at a phase shift which is 180° between the two elements. In addition, a monopole control signal is fed to the same elements (3, 4), only this time cophasally. Total volume velocities produced by the two elements (3, 4) are combinations of the portions obtained from the monopole and dipole sources.
摘要翻译：本发明涉及一种用于衰减管道中的声音的方法和设备。通过检测器（2）检测在管道中传播的声音，并且通过使用两个连续的单极子元件（3,4）衰减，使得两个元件都用作偶极近似，并且元件也用于近似地产生需要单极辐射。偶极控制信号以两个元件之间的180°的相移被馈送到两个元件（3,4）。此外，单极控制信号被馈送到相同的元件（3,4），这仅仅是这个时间。由两个元件（3,4）产生的总体积速度是从单极子和偶极子源获得的部分的组合。

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