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21. 发明授权

US5428396A Variable length coding/decoding method for motion vectors 失效
标题翻译：运动矢量的可变长度编码/解码方法
公开(公告)号：US5428396A
公开(公告)日：1995-06-27
申请号：US173042
申请日：1993-12-27
申请人： Yoichi Yagasaki , Jun Yonemitsu , Mark Veltman , Katsuji Igarashi , Motoki Kato
发明人： Yoichi Yagasaki , Jun Yonemitsu , Mark Veltman , Katsuji Igarashi , Motoki Kato
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50 , H04N7/32
CPC分类号： H04N19/517 , H04N19/51 , H04N19/61 , H04N19/13 , H04N19/91
摘要： In connection with compression-coding of video signals on the basis of inter-frame correlation, a single reference table is used for variable length encoding of inter-frame motion vectors established on the basis of various motion vector value ranges and degrees of accuracy. A reference table is provided for variable length encoding motion vectors based on a particular value range and degree of accuracy. In order to use the same table for motion vectors based on a larger value range than that for which the table was designed, the value of a motion vector to be encoded is divided to form a quotient and a remainder. An addition bit code is formed on the basis of the remainder and is appended to a variable length code which corresponds in the reference table to the quotient so that a variable length code value is formed for the motion vector based on the larger range. As to motion vectors based on a finer degree of accuracy than was provided for in the reference table, the motion vector value is multiplied by an appropriate factor and the resulting product is used to obtain a corresponding variable length code value from the reference table. Decoding is performed using the same table and by means of decoding operations that are the inverse of the encoding operations.
摘要翻译：结合帧间相关的视频信号的压缩编码，单个参考表用于根据各种运动矢量值范围和精度确定的帧间运动矢量的可变长度编码。基于特定值范围和准确度提供了可变长度编码运动矢量的参考表。为了使用相对于基于与设计表相比较大的值范围的运动矢量的相同的表，将要编码的运动矢量的值被分割以形成商和余数。基于剩余部分形成相加位码，并将其附加到在参考表中对应于商的可变长度码，以便基于较大范围为运动矢量形成可变长度码值。对于基于比参考表中提供的精度更精确的运动矢量的运动矢量，将运动矢量值乘以适当的因子，并且使用得到的乘积从参考表中获得相应的可变长度代码值。使用相同的表格和通过与编码操作相反的解码操作进行解码。

22. 发明授权

US08831781B2 Horizontal articulated robot, and method of controlling the same 有权
标题翻译：水平铰接机器人及其控制方法
公开(公告)号：US08831781B2
公开(公告)日：2014-09-09
申请号：US13400922
申请日：2012-02-21
申请人： Katsuji Igarashi , Masaki Motoyoshi
发明人： Katsuji Igarashi , Masaki Motoyoshi
IPC分类号： G05B15/00 , B25J9/16
CPC分类号： B25J13/088 , B25J9/042 , B25J9/1641 , B25J9/1694 , B25J19/02 , G05B2219/41193 , G05B2219/41195 , G05B2219/41205 , G05B2219/42077 , Y10S901/02 , Y10S901/09 , Y10S901/46
摘要： A robot includes a first horizontal arm coupled to a base, a second horizontal arm coupled to the base via the first horizontal arm, first and second motors adapted to rotate the respective arms, and first and second encoders adapted to calculate rotational angles and rotational velocities of the respective motors. A first motor control section subtracts first and second angular velocities based on the first and second encoders from a sensor angular velocity detected by an angular sensor, and controls the first motor so that a velocity measurement value obtained by adding a vibration velocity based on a vibration angular velocity as the subtraction result and a first rotational velocity becomes equal to a velocity command value.
摘要翻译：机器人包括联接到基座的第一水平臂，经由第一水平臂联接到基座的第二水平臂，适于旋转相应臂的第一和第二马达以及适于计算旋转角度和旋转速度的第一和第二编码器的各个电动机。第一电动机控制部分根据由角度传感器检测的传感器角速度，基于第一和第二编码器减去第一和第二角速度，并且控制第一电动机，使得通过基于振动增加振动速度而获得的速度测量值作为减法结果的角速度和第一旋转速度等于速度指令值。

23. 发明授权

US6075760A System for performing focusing operation when recording and/or reproducing data on multilayered optical disks 失效
标题翻译：在多层光盘上记录和/或再现数据时进行聚焦操作的系统
公开(公告)号：US6075760A
公开(公告)日：2000-06-13
申请号：US881887
申请日：1997-06-24
申请人： Keiichi Tsutsui , Katsuji Igarashi
发明人： Keiichi Tsutsui , Katsuji Igarashi
IPC分类号： G11B7/00 , G11B7/09
CPC分类号： G11B7/0945 , G11B7/094 , G11B2007/0013 , G11B7/0908
摘要： The invention provides a recording and/or reproduction apparatus and a recording and/or reproduction method by which information can be recorded or reproduced accurately onto or from any of a plurality of record layers of an optical disk. In the recording and/or reproduction method, after an optical disk is started, an optimum focus offset position for a predetermined record layer of the optical disk is searched for. This searching is performed by varying an offset value stepwise and searching for an offset value with which the amplitude of a tracking error signal exhibits a maximum value. After an optimum focus offset position is searched out, the value of it is stored. Similar processing is performed also for any other record layer. When an instruction to reproduce a predetermined record layer is developed in step, focus jumping to the record layer is performed. Then, an optimum focus offset value searched out and stored in advance is read out and added to a focus error signal.
摘要翻译：本发明提供一种记录和/或再现装置和记录和/或再现方法，通过该方法可以将信息准确地记录或再现到光盘的多个记录层中的任何一个记录层上。在记录和/或再现方法中，在光盘启动之后，搜索用于光盘的预定记录层的最佳聚焦偏移位置。通过逐步改变偏移值并搜索跟踪误差信号的振幅呈现最大值的偏移值来执行该搜索。搜索出最佳对焦偏移位置后，存储其值。对于任何其他记录层也执行类似的处理。当在步骤中开发再现预定记录层的指令时，执行向记录层的聚焦跳转。然后，预先搜索并存储的最佳聚焦偏移值被读出并加到聚焦误差信号上。

24. 发明授权

US5666461A High efficiency encoding and decoding of picture signals and recording medium containing same 失效
标题翻译：图像信号的高效率编码和解码以及包含其的记录介质
公开(公告)号：US5666461A
公开(公告)日：1997-09-09
申请号：US454598
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
IPC分类号： G06T9/00 , H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50 , H04N5/92 , H04N5/76 , H04N5/917
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/85 , H04N19/98 , H04N19/70
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译：编码器将表示图像的帧视为由区域组成。对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。解码器解码编码信号。编码信号被记录在通过传输信道或广播传输的记录介质上。

25. 发明授权

US5452377A Moving vector detecting device 失效
标题翻译：移动矢量检测装置
公开(公告)号：US5452377A
公开(公告)日：1995-09-19
申请号：US861583
申请日：1992-04-01
申请人： Katsuji Igarashi
发明人： Katsuji Igarashi
IPC分类号： H04N19/50 , G06T7/20 , H04N5/14 , H04N19/423 , H04N19/51 , H04N19/523 , H04N19/533 , G06K9/36 , H04N5/917 , H04N7/32
CPC分类号： H04N5/145 , G06T7/2013 , H04N19/51 , H04N19/523 , G06T2207/10016
摘要： A motion vector detecting apparatus using the minimum residual difference between corresponding picture elements from two consecutive frames and an interpolation circuit to develop a moving vector with half-picture-element pitch accuracy. A residual difference is obtained by comparing each frame of an image signal fed into the apparatus with each previous frame. A solution vector is obtained by taking the minimum value of the absolute values of the residual differences. The solution vector is adjusted by a correction value, which is determined by interpolating extreme values in the vicinity of this solution vector and taking a minimum therefrom, to obtain the half-picture-element pitch solution vector.
摘要翻译：使用来自两个连续帧的相应图像元素之间的最小残差的运动矢量检测装置和用于形成具有半像素间距精度的移动矢量的内插电路。通过将馈送到装置中的图像信号的每帧与每个前一帧进行比较来获得残差。通过取残差的绝对值的最小值得到解矢量。通过校正值来调整解矢量，该校正值通过内插该解矢量附近的极值并从其得到最小值来确定，以获得半像素间距解向量。

26. 发明授权

US5132792A Video signal transmitting system 失效
标题翻译：视频信号发送系统
公开(公告)号：US5132792A
公开(公告)日：1992-07-21
申请号：US596491
申请日：1990-10-12
申请人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
发明人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
IPC分类号： G06T9/00 , H04N7/26 , H04N7/32 , H04N7/36 , H04N7/46 , H04N7/50 , H04N7/52
CPC分类号： H04N7/52 , H04N19/50 , H04N19/51 , H04N19/577 , H04N19/61
摘要： Video signal transmitting system in which digital video signal are divided into groups of predetermined frames. Digital video signals of at least one frame are intraframe coded and then transmitted. Remaining digital video signals are interframe coded with reference to the intraframe coded digital video signals, and intraframe coded digital video signals of a subsequent group of frames and are then transmitted. A motion vector from a predetermined reference frame is detected. Video signals are interframe coded by the motion vector to transmit the video signals. A motion vector from a first frame which is a plurality of frames away from the reference frame is converted to a motion vector for a one frame interval between the reference frame and the first frame. The motion vector is optimized, and is then transmitted.

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