公开(公告)号：US08498862B2

公开(公告)日：2013-07-30

申请号：US12693950

申请日：2010-01-26

申请人： Kozo Okuda ,  Kenji Morimoto

发明人： Kozo Okuda ,  Kenji Morimoto

IPC分类号： G10L21/00

CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R2201/107 ,  H04R2400/01 ,  H04R2460/13 ,  H04R2499/11

摘要： A speech signal processing apparatus includes a control signal output unit configured to receive as an input signal either one of a first speech signal corresponding to a sound uttered by a user and a second speech signal corresponding to a sound output from an eardrum of the user when the user utters a sound, and output a control signal corresponding to a noise level of the input signal, and a speech signal output unit configured to output either one of the first speech signal and the second speech signal according to the control signal.

摘要翻译： 语音信号处理装置包括：控制信号输出单元，被配置为接收与用户发出的声音相对应的第一语音信号中的一个作为输入信号;以及与用户的鼓膜输出的声音对应的第二语音信号; 用户发出声音，并输出与输入信号的噪声电平相对应的控制信号，以及语音信号输出单元，被配置为根据控制信号输出第一语音信号和第二语音信号中的任一个。

公开(公告)号：US20100191528A1

公开(公告)日：2010-07-29

申请号：US12693950

申请日：2010-01-26

申请人： Kozo Okuda ,  Kenji Morimoto

发明人： Kozo Okuda ,  Kenji Morimoto

IPC分类号： G10L15/00

CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R2201/107 ,  H04R2400/01 ,  H04R2460/13 ,  H04R2499/11

摘要： A speech signal processing apparatus comprising: a control signal output unit configured to receive as an input signal either one of a first speech signal corresponding to a sound uttered by a user and a second speech signal corresponding to a sound output from an eardrum of the user when the user utters a sound, and output a control signal corresponding to a noise level of the input signal; and a speech signal output unit configured to output either one of the first speech signal and the second speech signal according to the control signal.

摘要翻译： 一种语音信号处理装置，包括：控制信号输出单元，被配置为接收与用户发出的声音对应的第一语音信号作为输入信号，以及与从用户的鼓膜输出的声音相对应的第二语音信号 当用户发出声音时，输出与输入信号的噪声电平对应的控制信号; 以及语音信号输出单元，被配置为根据控制信号输出第一语音信号和第二语音信号中的任一个。

公开(公告)号：US20050237998A1

公开(公告)日：2005-10-27

申请号：US10768187

申请日：2004-02-02

申请人： Kozo Okuda ,  Mika Kirimoto ,  Takashi Iida

发明人： Kozo Okuda ,  Mika Kirimoto ,  Takashi Iida

IPC分类号： H04L12/56 ,  H04L12/66 ,  H04M1/253

CPC分类号： H04L49/9094 ,  H04L49/90 ,  H04M1/2535

摘要： An audio decoding apparatus comprises packet order change control means, comprising packet rearranging storage means capable of storing one or a plurality of received packets, for outputting the packet which has been sent out in the earliest time from a transmission side, out of the packet received this time and the packets stored in the packet rearranging storage means, on the basis of order information related to the received packet and order information related to the packets stored in the packet rearranging storage means as well as storing in the packet rearranging storage means the packets excluding the outputted packet out of the received packet and the packets stored in the packet rearranging storage means; and an FIFO jitter buffer for sequentially storing the packets outputted from the packet order change control means as well as outputting the stored packets in the order inputted.

摘要翻译： 音频解码装置包括分组顺序改变控制装置，包括能够存储一个或多个接收分组的分组重新布置存储装置，用于输出从发送侧最早发送的分组，从接收到的分组中 这一次以及存储在分组重排存储装置中的分组，基于与接收到的分组相关的订单信息和与存储在分组重新排列存储装置中的分组相关的订单信息，以及在分组重新排列存储装置中存储分组 排除接收到的分组中的输出分组和存储在分组重排存储装置中的分组; 以及用于顺序地存储从分组顺序改变控制装置输出的分组以及按所输入的顺序输出所存储的分组的FIFO抖动缓冲器。

公开(公告)号：US06868157B1

公开(公告)日：2005-03-15

申请号：US09508579

申请日：1998-09-10

申请人： Kozo Okuda

发明人： Kozo Okuda

IPC分类号： H04B3/20 ,  H04B3/23 ,  H04M1/00 ,  H04M9/00 ,  H04M9/08

CPC分类号： H04B3/23

摘要： A digitized input signal is sampled, to obtain a reference input signal. The reference input signal is spuriously whitened, to obtain a pseudo whitened signal. An echo replica signal is generated on the basis of the pseudo whitened signal and an adaptive filter coefficient. A cancellation error signal is obtained on the basis of an echo signal and the echo replica signal. The adaptive filter coefficient is updated on the basis of the cancellation error signal, the adaptive filter coefficient, and the pseudo whitened signal.

摘要翻译： 对数字化输入信号进行采样，以获得参考输入信号。 参考输入信号被伪造白化，以获得伪白化信号。 基于伪白化信号和自适应滤波器系数生成回波复制信号。 基于回波信号和回波复制信号获得抵消误差信号。 基于消除误差信号，自适应滤波器系数和伪白化信号来更新自适应滤波器系数。

公开(公告)号：US06442273B1

公开(公告)日：2002-08-27

申请号：US09508583

申请日：2000-03-14

申请人： Kozo Okuda

发明人： Kozo Okuda

IPC分类号： H04M908

CPC分类号： H04B3/234

摘要： An object of the present invention is to provide an echo canceller capable of generating, when the double-talk detection precision is degraded and the learning of a filter coefficient swings by noises, an echo replica signal using a filter coefficient having a low degree of error at the time of detecting a double-talk state. A backup filter coefficient is calculated by adding a predetermined weighting factor times a filter coefficient obtained by the learning and a predetermined weighting factor times the preceding backup filter coefficient stored in second storage means.

摘要翻译： 本发明的一个目的是提供一种回声消除器，其能够在双方通话检测精度降低并且滤波器系数的学习通过噪声摆动时产生使用具有低错误率的滤波器系数的回波复制信号 在检测到双方通话状态时。 通过将预定的加权因子乘以通过学习获得的滤波器系数和与第二存储装置中存储的先前的备用滤波器系数相乘的预定加权因子来计算备用滤波器系数。

公开(公告)号：US08184160B2

公开(公告)日：2012-05-22

申请号：US11972174

申请日：2008-01-10

申请人： Hitoshi Hongo ,  Kozo Okuda

发明人： Hitoshi Hongo ,  Kozo Okuda

IPC分类号： H04N7/18

CPC分类号： G06T7/33 ,  B60W2050/0063 ,  B60W2050/0075 ,  B60W2420/403 ,  B60W2420/42 ,  G06T2207/10012 ,  G06T2207/30252

摘要： A driving assistance system that projects images imaged by multiple vehicle cameras onto a plane, and synthesizes projection images from images obtained at different times to accurately determine whether the vehicle cameras have moved out of their proper positions or imaging directions. The system includes: first and second in-vehicle cameras that capture first and second images, respectively. The cameras capture overlapping regions respectively in different directions. An image converter converts the first and second images into first and second projection images projected onto a plane. A solid object detection unit determines whether a solid object exists in the overlapping region. When no solid object exists, the images of the overlapping regions within the first and second projection images are compared to generate a comparison value. The comparison value is in turn compared with a threshold value for the determination of vehicle camera movement out of its proper position.

摘要翻译： 将由多台车辆照相机成像的图像投影到平面上的驾驶辅助系统，并且从在不同时间获得的图像合成投影图像，以准确地确定车辆摄像机是否已经移出其正确的位置或成像方向。 该系统包括：分别捕获第一和第二图像的第一和第二车载摄像机。 摄像机分别在不同方向捕获重叠区域。 图像转换器将第一和第二图像转换成投影到平面上的第一和第二投影图像。 固体物体检测单元确定在重叠区域中是否存在实体物体。 当不存在固体物体时，比较第一和第二投影图像内的重叠区域的图像以产生比较值。 比较值又与用于确定车辆相机运动超出其适当位置的阈值进行比较。

公开(公告)号：US06449361B1

公开(公告)日：2002-09-10

申请号：US09265378

申请日：1999-03-10

申请人： Kozo Okuda

发明人： Kozo Okuda

IPC分类号： H04M908

CPC分类号： H04M9/082

摘要： A method of controlling an echo canceller for providing an echo cancellation signal by subtracting an echo replica signal either from a transmit signal or a receive signal. The method includes the steps of a first step of performing a speech detection based on the echo cancellation signal provided by the echo canceller; a second step of detecting a double talk condition based on a result of the speech detection performed by the first step; and a third step of controlling a learning operation of the echo canceller based on a result of the double talk detection performed by the second step.

摘要翻译： 一种控制回波消除器的方法，用于通过从发射信号或接收信号中减去回波复制信号来提供回波消除信号。 该方法包括以下步骤：基于由回波消除器提供的回波消除信号执行语音检测的第一步骤; 第二步骤，基于由第一步骤进行的语音检测的结果检测双向对话条件; 以及第三步骤，基于由第二步骤执行的双方通话检测的结果来控制回声消除器的学习操作。

公开(公告)号：US20150090511A1

公开(公告)日：2015-04-02

申请号：US14237188

申请日：2013-09-27

申请人： Kozo Okuda ,  Hideyuki Ohi

发明人： Kozo Okuda ,  Hideyuki Ohi

IPC分类号： E02F9/08 ,  B60K13/04 ,  F01N3/28

CPC分类号： E02F9/0883 ,  B60K13/04 ,  B60Y2200/412 ,  F01N3/208 ,  F01N3/2896 ,  F01N2610/02 ,  F01N2610/1406 ,  G01F23/0046 ,  G01F23/02 ,  G01F23/64 ,  Y02A50/2325 ,  Y02T10/24

摘要： A reducing agent tank includes a tank body storing reducing agent and a cylindrical gauge member visually indicating a storage amount of the reducing agent inside the tank body. The gauge member is in communication with an inside of the tank body. The tank body has a replenishment port to replenish the reducing agent. The gauge member is provided on a first wall surface of a plurality of wall surfaces defining the tank body. The gauge member is provided in a slanted manner relative to a bottom plate of the tank body. The replenishing port and the gauge member are disposed in a row along a direction that extends along the first wall surface as seen in a plan view.

摘要翻译： 还原剂罐包括容纳储存还原剂的罐体和目视指示储罐体内的还原剂的储存量的圆筒形表面构件。 仪表构件与罐体的内部连通。 罐身有一个补充口以补充还原剂。 测量构件设置在限定罐体的多个壁表面的第一壁表面上。 仪表构件相对于罐体的底板倾斜地设置。 所述补充口和所述量规部件沿着俯视图所示沿着所述第一壁面延伸的方向配置成行。

公开(公告)号：US20080231710A1

公开(公告)日：2008-09-25

申请号：US12022853

申请日：2008-01-30

申请人： Keisuke ASARI ,  Hiroshi Kano ,  Kozo Okuda ,  Yohei Ishii

发明人： Keisuke ASARI ,  Hiroshi Kano ,  Kozo Okuda ,  Yohei Ishii

IPC分类号： H04N17/00

CPC分类号： H04N17/002 ,  G06T7/80

摘要： A camera calibration apparatus has a parameter deriver adapted to find parameters for projecting images shot with N cameras (where N is an integer of 3 or more) onto a predetermined surface and merging the images together. The N cameras comprise a first camera, a second camera, . . . and an N-th camera. The i-th camera (where i is every integer between 1 and N, inclusive) shares a common shooting area with at least one of the other (N−1) cameras, so that there are a plurality of such common shooting areas in total. The parameter deriver finds the parameters based on the results of the shooting of the calibration patterns arranged in the common shooting areas with the corresponding cameras. The calibration patterns are arranged separate from one another.

摘要翻译： 相机校准装置具有参数提取器，其适于找到将用N个相机（其中N是3或更大的整数）拍摄的图像投影到预定表面上并将图像合并在一起的参数。 N个相机包括第一相机，第二相机。 。 。 和第N台摄像机。 第i个摄像机（其中i是包括1和N之间的整数）与至少一个其它（N-1）个摄像机共享一个共同的拍摄区域，使得总共存在多个这样的公共拍摄区域 。 参数提取器根据使用相应的摄像机在普通拍摄区域中排列的校准图案的拍摄结果找到参数。 校准图案彼此分开排列。

公开(公告)号：US07921816B2

公开(公告)日：2011-04-12

申请号：US12064250

申请日：2006-08-28

申请人： Kozo Okuda ,  Keiji Yanagihara ,  Kouji Hoshi

发明人： Kozo Okuda ,  Keiji Yanagihara ,  Kouji Hoshi

IPC分类号： F01P7/02

CPC分类号： F01P7/044 ,  E02F9/226 ,  F04D25/04 ,  F04D27/004 ,  F04D29/663

摘要： A control device for a hydraulically driven fan is provided with a cooling fan which is rotated by a hydraulic motor and carries out ventilation for cooling a working fluid. Further, the control device for the hydraulically driven fan is provided with a sensor for detecting a temperature of the working fluid, and a lever switch for detecting whether a working mechanism actuated by the engine is in a stopped state, by determining whether a working machine lever has been operated. In order that a resonance between the cooling fan and the engine is suppressed, the control device for the hydraulically driven fan further adjusts a rotating speed of the hydraulic motor in correspondence to a detection result by the lever switch. In the case that a stopped state of the working mechanism is detected on the basis of an operation state of the working machine lever by the lever switch, the rotating speed of the hydraulic motor is adjusted. Accordingly, it is possible to adjust and change the rotating speed of the cooling fan, thus it is possible to prevent resonance noise and vibration from being generated between the cooling fan and the engine.

摘要翻译： 用于液压驱动风扇的控制装置设置有由液压马达旋转的冷却风扇，并且进行用于冷却工作流体的通风。 此外，液压驱动风扇的控制装置设置有用于检测工作流体的温度的传感器，以及用于检测由发动机致动的工作机构是否处于停止状态的杆开关，通过确定工作机械 杠杆已经运行。 为了抑制冷却风扇和发动机之间的共振，用于液压驱动风扇的控制装置进一步根据杠杆开关的检测结果调整液压马达的转速。 在通过杠杆开关基于作业机械手的操作状态来检测到作业机构的停止状态的情况下，调整液压马达的转速。 因此，可以调节和改变冷却风扇的转速，从而可以防止在冷却风扇和发动机之间产生共振噪声和振动。