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    • 2. 发明授权
    • Encoder
    • 编码器
    • US08729458B2
    • 2014-05-20
    • US13253267
    • 2011-10-05
    • Yoshiaki Kato
    • Yoshiaki Kato
    • G01D5/347G01D5/36
    • G01D5/24476
    • A detection head includes a plurality of detection array portions that are arranged in a direction along which the head is relatively displaceable. Position signals indicating a position of the detection head are calculated from output signals output from the detection array portions. In order to combine the position signals with one another and determine the position of the detection head with respect to the scale, weighting according to a level of the output signal is performed on the position signal of each of the detection array portions, and the weighted position signals are averaged.
    • 检测头包括多个检测阵列部分,其沿头部相对位移的方向布置。 根据从检测阵列部分输出的输出信号计算表示检测头的位置的位置信号。 为了将位置信号彼此组合并确定检测头相对于标尺的位置,根据输出信号的电平对每个检测阵列部分的位置信号进行加权,并且加权 位置信号被平均。
    • 4. 发明申请
    • PHOTOELECTRIC ENCODER
    • 光电编码器
    • US20110199240A1
    • 2011-08-18
    • US13025198
    • 2011-02-11
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H03M1/22
    • G01D5/24476
    • A photoelectric encoder includes: a scale having a grating formed with a predetermined period Ps; and a detector head being movable relative to the scale and including a light source and a light receiving unit. In a configuration where light receiving elements in the light receiving unit output N-points light and dark signals (N is an integer of 3 or more), and where phases of the N-points light and dark signals are detected by a least-squares method to fit a sinusoidal function with fixed period to N-points digital signals digitized from the N-points light and dark signals, an N-points light and dark signal period P is set at an integral multiple of a data-point interval w of the N-points digital signals, and an overall length M of the light receiving elements is set at an integral multiple of the N-points light and dark signal period P. Thereby, position detecting errors occurring due to a stain of the scale and/or a defect in the grating can be reduced by simple computing.
    • 光电编码器包括:具有形成有预定周期Ps的光栅的刻度; 以及检测器头,其相对于刻度尺可移动,并且包括光源和光接收单元。 在光接收单元中的光接收元件输出N点光暗信号(N为3以上的整数)的情况下,通过最小二乘法来检测N点光暗信号的相位 将具有固定周期的正弦函数拟合为从N点光暗信号数字化的N点数字信号的方法,将N点光暗信号周期P设定为数据点间隔w的整数倍 N点数字信号和光接收元件的总长度M被设定为N点光暗信号周期P的整数倍。由此,由于刻度和/ 或者可以通过简单的计算来减少光栅中的缺陷。
    • 6. 发明授权
    • Data transmitting device, data receiving device, and data distribution system
    • 数据发送设备,数据接收设备和数据分发系统
    • US07904781B2
    • 2011-03-08
    • US11664527
    • 2004-12-09
    • Toyokazu SugaiYoshiaki Kato
    • Toyokazu SugaiYoshiaki Kato
    • H03M13/00
    • H04L1/0057H04L1/0045H04L1/0075H04L1/008H04L65/80H04L69/40H04L2001/0093
    • A data transmitting device and a data receiving device which are capable of conducting an error correction using an FEC stream without requiring a feedback from the data receiving device to the data transmitting device are obtained. The data receiving device includes a media packet transmitting unit for transmitting media streams, a plurality of FEC packet calculating units for calculating FEC packets having different parameters, and a plurality of FEC packet transmitting units for transmitting the FEC packets as a FEC stream. Further, the data receiving device includes a media packet receiving unit for acquiring the media packets, an FEC stream selecting and receiving unit for selecting one or a plurality of FEC streams from the plurality of FEC streams to acquire the FEC packets, and a media packet restoring unit for restoring a lost packet by using the FEC packet.
    • 获得能够使用FEC流进行纠错的数据发送装置和数据接收装置,而不需要从数据接收装置向数据发送装置的反馈。 数据接收装置包括用于传输媒体流的媒体分组发送单元,用于计算具有不同参数的FEC分组的多个FEC分组计算单元和用于将FEC分组作为FEC流发送的多个FEC分组发送单元。 此外,数据接收装置包括用于获取媒体分组的媒体分组接收单元,用于从多个FEC流中选择一个或多个FEC流以获取FEC分组的FEC流选择和接收单元,以及媒体分组 恢复单元,用于通过使用FEC分组来恢复丢失的分组。
    • 7. 发明授权
    • Solid-state imaging device, camera and signal processing method
    • 固态成像装置,相机和信号处理方法
    • US07863633B2
    • 2011-01-04
    • US11697498
    • 2007-04-06
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H04N1/19
    • H01L27/14621H01L27/14627
    • The solid-state imaging device of the present invention includes: photodiodes which are two-dimensionally arranged; light condensers each of which condenses light and is provided in a position to correspond to two of the photodiodes which are adjacent to each other; and separating units each of which separates the light entering through the light condensers into first light having a wavelength within a predetermined range, and second light having a wavelength out of the predetermined range, and is provided in a position to correspond to one of the light condensers. Each of the separating units includes: a light-selecting unit which selectively allows transmission of one of the first light and the second light and reflect the other one of the first light and the second light, and allow entering of the transmitted light to one of the corresponding two of the photodiodes; and a light-reflecting unit which reflects the light, reflected by the light-selecting unit, towards the other one of the corresponding two of the photodiodes.
    • 本发明的固态成像装置包括:二维布置的光电二极管; 光聚光器各自聚光并且设置在与彼此相邻的两个光电二极管对应的位置; 以及分离单元,每个单元将通过所述光电凝器进入的光分离成具有预定范围内的波长的第一光,以及具有超出所述预定范围的波长的第二光,并且设置在与所述光中的一个对应的位置 电容器 每个分离单元包括:光选择单元,其选择性地允许透射第一光和第二光中的一个,并反射第一光和第二光中的另一个,并且允许透射光进入 相应的两个光电二极管; 以及光反射单元,其将由光选择单元反射的光朝向相应的两个光电二极管中的另一个反射。
    • 8. 发明授权
    • Solid-state imaging device, driving method thereof, and camera
    • 固态成像装置,其驱动方法和相机
    • US07847849B2
    • 2010-12-07
    • US11776979
    • 2007-07-12
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H04N5/335H01L27/108
    • H04N9/045H04N5/3458H04N5/3728
    • A solid-state imaging device includes: a plurality of light-receiving elements which are arranged by rows and columns. A driving unit performs a driving, so that a signal packet and a plurality of dummy packets in an identical column are mixed together into a mixed packet in each holding units, charges of the mixed packet are held in a hold unit, the held charges of the mixed packet are vertically transferred to a horizontal transfer unit so that the mixed packet is mixed with a mixed packet of a different hold unit which is vertically transferred from the different hold unit to the horizontal transfer unit.
    • 固态成像装置包括:多个按行和列布置的光接收元件。 驱动单元执行驱动,使得相同列中的信号分组和多个虚拟分组在每个保持单元中混合成为混合分组,混合分组的费用保持在保持单元中,所保持的费用 混合分组垂直传送到水平传送单元,使得混合分组与从不同保持单元垂直传送到水平传送单元的不同保持单元的混合分组混合。
    • 9. 发明授权
    • Stream analysis apparatus and stream analysis display method
    • 流分析装置和流分析显示方法
    • US07835403B2
    • 2010-11-16
    • US12118670
    • 2008-05-09
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H04J3/06
    • H04N21/434H04N17/004H04N21/4305H04N21/44209
    • An analysis display has a coordinate plane of which coordinate axes are elapsed time and PCR (Program Clock Reference) time calculated using PCR extracted from header information of a transport stream packet. A box indicator representing an access unit is provided on the coordinate plane and sides of the box indicator indicate an arrival time of the access unit AU and time of time stamps PTS/DTS. It analyzes the PCR in a transport stream layer and the time stamps PTS/DTS in a PES layer in a manner of over layers, and displays an analysis result that allows easily understanding a relationship between system timing and them. Therefore, it makes it easier to check a problem on the PCR and the time stamps PTS/DTS.
    • 分析显示器具有坐标轴经过时间的坐标平面,并且使用从传输流分组的报头信息提取的PCR计算出PCR(节目时钟参考)时间。 表示访问单元的框指示符设置在坐标平面上,框的指示符指示访问单元AU的到达时间和时间戳PTS / DTS的时间。 它以传输流层分析PCR,并以PES层的方式对PES层中的PTS / DTS进行时间戳分析,并显示一个分析结果,可以轻松了解系统时序与它们之间的关系。 因此,更容易检查PCR和时间戳PTS / DTS的问题。
    • 10. 发明申请
    • SOLID-STATE IMAGING DEVICE
    • 固态成像装置
    • US20100165166A1
    • 2010-07-01
    • US12601109
    • 2008-05-28
    • Hiroshi HaraYoshiaki Kato
    • Hiroshi HaraYoshiaki Kato
    • H04N5/335
    • H01L27/148H04N5/347H04N5/361H04N5/3651H04N5/37213
    • The present invention has as an object to provide a solid-state imaging device which makes possible mixing pixels without causing quality deterioration, such as non-uniformity of an image. A VDr (110) controls transfer of charge performed by a column CCD (210), so that: the column CCD (210) sequentially transfers plural packets each representing the charge transferred through successive well regions which are divided by a barrier region; a stand-by period in which the charge transfer in the plural packets suspends for every plural packets is longer than a transfer period in which the charge transfer in the plural packets is performed; two of charge transfer stages working as barrier regions are two charge transfer stages out of four or more charge transfer stages in the stand-by period; and one of neighboring two charge transfer stages works as the barrier region or a well region with a potential inclined in a charge transfer direction, and the other one of the neighboring two charge transfer stages (i) is positioned upstream of the transfer direction of the charge in relation to the one of the charge transfer stages, (ii) has no potential inclined in the transfer direction of the charge, (iii) and works as a barrier region having a potential higher than the one of the charge transfer stages in the stand-by period.
    • 本发明的目的是提供一种使得可能的混合像素不会引起质量劣化的固态成像装置,例如图像的不均匀性。 VDr(110)控制由列CCD(210)执行的电荷的传送,使得:列CCD(210)顺序地传输多个分组,每个分组表示通过屏障区域划分的连续的阱区传输的电荷; 对于多个分组中的多个分组暂停的电荷传送的待机时间长于执行多个分组中的电荷传送的传送时段; 作为阻挡区域的两个电荷转移阶段是在待机期间的四个或更多个电荷转移阶段中的两个电荷转移阶段; 并且相邻的两个电荷转移级之一用作势垒区或具有在电荷转移方向上倾斜的电位的阱区,并且相邻的两个电荷转移级(i)中的另一个位于 相对于电荷转移阶段之一的电荷,(ii)在电荷的传送方向上没有倾斜的电位,(iii)并且作为具有高于电荷转移级中的电荷转移级之一的势垒区 待机期