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    • 82. 发明申请
    • VOICE ACTIVITY DETECTION SYSTEM, METHOD, AND PROGRAM PRODUCT
    • 语音活动检测系统,方法和程序产品
    • US20090222258A1
    • 2009-09-03
    • US12394631
    • 2009-02-27
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • G10L19/02
    • G10L25/93
    • A voice activity detection method in a low SNR environment. The voice activity detection is performed by extracting a long-term spectrum variation component and a harmonic structure as feature vectors from a speech signal and increasing difference in feature vectors between speech and non-speech (i) using the long-term spectrum variation component feature or (ii) using a long-term spectrum variation component extraction and a harmonic structure feature extraction. A correct rate and an accuracy rate of the voice activity detection is improved over conventional methods by using a long-term spectrum variation component having a window length over an average phoneme duration of an utterance in the speech signal. The voice activity detection system and method provides speech processing, automatic speech recognition, and speech output capable of very accurate voice activity detection.
    • 低SNR环境下的语音活动检测方法。 通过从语音信号提取长期频谱变化分量和谐波结构作为特征向量并且增加语音和非语音之间的特征向量的差异(i),使用长期频谱变化分量特征来执行语音活动检测 或(ii)使用长期光谱变化分量提取和谐波结构特征提取。 通过使用具有在语音信号中的话语的平均音素持续时间上的窗口长度的长期频谱变化分量,语音活动检测的正确率和准确率比常规方法得到改进。 语音活动检测系统和方法提供能够进行非常精确的语音活动检测的语音处理,自动语音识别和语音输出。
    • 83. 发明申请
    • SYSTEM, METHOD AND PROGRAM FOR SPEECH PROCESSING
    • 用于语音处理的系统,方法和程序
    • US20090210224A1
    • 2009-08-20
    • US12200610
    • 2008-08-28
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • G10L15/20
    • G10L15/20G10L15/02G10L25/24
    • The present invention relates to a system, method and program for speech recognition. In an embodiment of the invention a method for processing a speech signal consists of receiving a power spectrum of a speech signal and generating a log power spectrum signal of the power spectrum. The method further consists of performing discrete cosine transformation on the log power spectrum signal and cutting off cepstrum upper and lower terms of the discrete cosine transformed signal. The method further consists of performing inverse discrete cosine transformation on the signal from which the cepstrum upper and lower terms are cut off. The method further consists of converting the inverse discrete cosine transformed signal so as to bring the signal back to a power spectrum domain and filtering the power spectrum of the speech signal by using, as a filter, the signal which is brought back to the power spectrum domain.
    • 本发明涉及用于语音识别的系统,方法和程序。 在本发明的实施例中,用于处理语音信号的方法包括接收语音信号的功率谱并产生功率谱的对数功率谱信号。 该方法还包括对对数功率谱信号执行离散余弦变换,并切断离散余弦变换信号的倒谱上下项。 该方法还包括对从其中切断倒谱谱上限和下限的信号执行逆离散余弦变换。 该方法还包括转换逆离散余弦变换信号,以使信号回到功率谱域,并通过使用带回到功率谱的信号作为滤波器来过滤语音信号的功率谱 域。
    • 84. 发明申请
    • METHOD FOR PROCESSING SPEECH SIGNAL DATA
    • 用于处理语音信号数据的方法
    • US20090043570A1
    • 2009-02-12
    • US11834964
    • 2007-08-07
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • Takashi FukudaOsamu IchikawaMasafumi Nishimura
    • G10L19/14G10L19/02G10L21/02
    • G10L15/20G10L19/04G10L2021/02082
    • Method for processing speech signal data. A speech signal is divided into frames. Each frame is characterized by a frame number T representing a unique interval of time. Each speech signal is characterized by a power spectrum with respect to frame T and frequency band ω. A speech segment and a reverberation segment of the speech signal is determined. L filter coefficients W(k) (k=1, 2, . . . , L) respectively corresponding to L frames immediately preceding frame T are computed such that the L filter coefficients minimize a function Φ that is a linear combination of sum of squares of a residual speech power in the reverberation segment and a sum of squares of a subtracted speech power in the speech segment. The computed L filter coefficients are stored within storage media of the computing apparatus.
    • 用于处理语音信号数据的方法。 语音信号被分成帧。 每个帧的特征在于代表唯一的时间间隔的帧号T. 每个语音信号的特征在于相对于帧T和频带ω的功率谱。 确定语音信号的语音段和混响段。 计算分别对应于帧T之前的L帧的L个滤波器系数W(k)(k = 1,2,...,L),使得L个滤波器系数最小化作为平方和的线性组合的函数Phi 在混响段中的剩余语音功率和语音段中减去的语音功率的平方和。 所计算的L个滤波器系数存储在计算装置的存储介质中。
    • 85. 发明申请
    • Chemical Liquid Injection System
    • 化学液体注射系统
    • US20080300483A1
    • 2008-12-04
    • US11571045
    • 2005-06-06
    • Toru NemotoTomoyuki IkomaTakashi Fukuda
    • Toru NemotoTomoyuki IkomaTakashi Fukuda
    • A61B6/00A61M5/00
    • A61M5/007A61M5/14232A61M5/1452
    • A chemical liquid injection system with which a chemical liquid in a chemical liquid container can be directly injected into a patient without using an intervening liquid syringe or the like.A trailing end of chemical liquid injection tube 120 that its leading end is connected to the patient is placed at a lower position within chemical liquid container 200. A leading end of liquid supply tube 110 is placed at a upper position within chemical liquid container 200 and a trailing end of liquid supply tube 110 is connected to liquid container 300. Since liquid pressure-feeding mechanism 131 feeds the liquid in liquid container 300 into chemical liquid container 200 from liquid supply tube 110 with pressure, the chemical liquid is directly injected into the patient from chemical liquid container 200 through chemical liquid tube 120.
    • 可以在不使用中间液体注射器等的情况下将化学液容器中的化学液体直接注入患者的药液注入系统。 将其前端与患者连接的化学液体注射管120的尾端放置在药液容器200内的下部位置。液体供应管110的前端被放置在药液容器200内的上部位置, 液体供给管110的后端与液体容器300连接。由于液体供给机构131将来自液体供给管110的液体容器300内的液体从液体容器300供给到药液容器200中,因此将药液直接注入到 病人从化学液体容器200通过化学液体管120。
    • 86. 发明申请
    • In-furnace temperature measuring method
    • 炉内温度测量方法
    • US20070144626A1
    • 2007-06-28
    • US11387868
    • 2006-03-24
    • Takashi Fukuda
    • Takashi Fukuda
    • C21D11/00
    • C21D11/00
    • There is provided an in-furnace temperature measuring method that is capable of reducing the number of operation steps that are required for temperature measurement, and effectively applying a measurement result even if colors and finishing states of a circuit board and an electronic part are changed. First and second pseudo circuit boards (12) and (13) having the substantially same configuration and dimensions as those of a circuit board are inserted into a reflow furnace (11), the front and rear surface temperatures of the first and second pseudo circuit boards (12) and (13) and air temperatures around the first and second pseudo circuit boards (12) and (13) within the reflow furnace (11) are measured. The entire surface of a metal whose physical value is known is black-coated in the first pseudo circuit board (12), and the entire surface of a metal whose given physical value is known is mirror-finished in the second pseudo circuit board (13).
    • 提供了一种炉内温度测量方法,其能够减少温度测量所需的操作步骤的数量,并且即使改变电路板和电子部件的颜色和修整状态,也能有效地应用测量结果。 具有与电路板基本相同的构造和尺寸的第一和第二伪电路板(12)和(13)插入回流炉(11)中,第一和第二伪电路板的前后表面温度 (12)和(13),并且测量回流炉(11)内的第一和第二假电路板(12)和(13)周围的空气温度。 物理值已知的金属的整个表面在第一伪电路板(12)中被黑涂覆,并且具有给定物理值的金属的整个表面在第二伪电路板(13)中被镜面加工 )。
    • 88. 发明授权
    • Joint construction for brake pipe
    • 制动管接头结构
    • US06439354B2
    • 2002-08-27
    • US09844778
    • 2001-04-27
    • Takashi Fukuda
    • Takashi Fukuda
    • B60T1704
    • B60T17/046B60T17/04B62D23/00
    • An object of the present invention is to increase the degree of freedom in laying out vehicle parts by decreasing a space in which a brake pipe is laid out. A control unit of a foot parking brake in accordance with the present invention is installed to an attachment bracket fixed to a dash panel, a connection joint is provided in a space between the dash panel and the foot parking brake, and the connection joint is installed to the dash panel. A cabin-side connector of the connection joint is disposed so as to face to the direction in which the dash panel extends. An outside connector of the connection joint is disposed so that one end of an outside brake pipe is disposed so as to be substantially perpendicular to the direction in which the surface of the dash panel extends.
    • 本发明的目的是通过减少布置制动管的空间来增加布置车辆部件的自由度。 根据本发明的脚踏驻车制动器的控制单元安装到固定到仪表板上的附接支架中,在前围板和脚踏驻车制动器之间的空间中设置有连接接头,并且连接接头被安装 到仪表板。 连接接头的车厢侧连接器设置成面向仪表板延伸的方向。 连接接头的外部连接器被布置成使得外部制动管的一端被布置成基本上垂直于仪表板的表面延伸的方向。
    • 89. 发明授权
    • Cylinder direct injection spark-ignition internal combustion engine
    • 气缸直喷火花点火内燃机
    • US06345500B2
    • 2002-02-12
    • US09342738
    • 1999-06-29
    • Yasuyuki ItouTakashi Fukuda
    • Yasuyuki ItouTakashi Fukuda
    • F01N300
    • F02D41/0255F02B2075/125F02D41/405F02D2200/0804Y02T10/123Y02T10/26Y02T10/44
    • In a cylinder injection spark-ignition engine having a spark plug to ignite an air mixture fuel within a corresponding cylinder; a fuel injector to inject fuel into a combustion chamber; a catalytic converter interposed in an exhaust passage; and a controller, the controller being programmed to: command the fuel injector to inject a main fuel into the combustion chamber for a first time duration within at least one of a suction stroke and a compression stroke and to inject an additional fuel for a second time duration within at least one of an expansion stroke and an exhaust stroke, the controller is programmed to set a target value of a total air-fuel mixture ratio to a value of the air-fuel mixture ratio which is leaner than a stoichiometric air-fuel mixture ratio for a warm-up condition of the catalytic converter and the controller is programmed to calculate respective injection quantities (Ti1 and Ti2) of the main fuel and the additional fuel in such a manner that the total air-fuel mixture ratio based on a sum of the main fuel and the additional fuel corresponds to the set target value of the total air-fuel mixture ratio.
    • 在具有用于点燃相应气缸内的空气混合物燃料的火花塞的气缸喷射火花点火发动机中; 燃料喷射器,用于将燃料喷射到燃烧室中; 插入在排气通道中的催化转化器; 以及控制器,所述控制器被编程为:命令所述燃料喷射器在至少一个吸入冲程和压缩冲程内的第一时间内将主燃料喷射到所述燃烧室中,并且再次注入额外的燃料 持续时间在膨胀冲程和排气冲程中的至少一个中,控制器被编程为将总空气 - 燃料混合比的目标值设定为比理论空燃比浓的空气 - 燃料混合比的值 对催化转化器和控制器的预热状态的混合比进行编程,以计算主燃料和附加燃料的相应喷射量(Ti1和Ti2),使得总空气燃料混合比基于 主燃料和附加燃料的总和对应于总空气燃料混合比的设定目标值。