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公开(公告)号：US5872754A
公开(公告)日：1999-02-16
申请号：US799895
申请日：1997-02-13
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/005 , G11B20/10
CPC分类号： G11B20/10009 , G11B7/0037 , G11B7/005
摘要： A data reproduction apparatus assuring compatibility of optical disks capable of reproducing both pit-position recorded data and edge-position recorded data in optical disks by digital operation by using digital values obtained by sampling reproduction signals. A reproduction signal obtained by an optical head is converted into a digital value by a first A/D converter, and on the basis of the converted digital value, pit-position recorded data is recorded by a pit-position detector. Moreover, the reproduction signal obtained by the optical head is converted into digital values by first and second A/D converters, and on the basis of the converted digital values, front edge and rear edge maximum likelihood decoded data of edge-position recorded data are detected by first and second maximum likelihood detectors, and both maximum likelihood decoded data are synthesized by a synthesizer.
摘要翻译： 一种数据再现装置，通过使用通过对再现信号进行采样而获得的数字值，通过数字操作确保能够再现凹坑位置记录数据和边缘位置记录数据的光盘的兼容性。 通过光头获得的再现信号由第一A / D转换器转换为数字值，并且基于转换的数字值，凹坑位置记录数据由凹坑位置检测器记录。 此外，由光头获得的再现信号由第一和第二A / D转换器转换为数字值，并且基于转换的数字值，边缘位置记录数据的前沿和后沿最大似然解码数据是 由第一和第二最大似然检测器检测，最大似然解码数据由合成器合成。
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公开(公告)号：US5796693A
公开(公告)日：1998-08-18
申请号：US781280
申请日：1997-01-10
CPC分类号： G11B20/10148 , G11B20/10009 , G11B20/10083 , G11B20/10101 , G11B20/10111 , G11B20/1403 , H04L25/493 , H04L7/0334 , G11B7/005
摘要： A data reproduction apparatus of an optical disk having a maximum likelihood detection system for compensating a stationary edge shift and an edge shift depending on record pattern at the time of reproduction. The edge shift that has not completely been compensated at the time of recording in an optical disk is compensated by controlling an expected value in branch metric calculation of maximum likelihood detection while recognizing the pattern of record data at the time of reproduction. The edge shift amount is measured on the basis of the reproduction signal relative to the VFO area of the optical disk, and an expected value compensation table for showing an optimum expected value in branch metric calculation is selected preliminarily according to the measured amount. Thereby, the pattern of record data in the data area of the optical disk is recognized, the optimum expected value according to the recognized pattern of record data is determined by referring to the selected expected value compensation table, and the branch metric calculation is operated by using the optimum expected value.
摘要翻译： 一种光盘的数据再现装置，具有用于补偿静止边缘移位的最大似然检测系统和根据再现时的记录模式的边缘移位。 在记录光盘时尚未完全补偿的边缘偏移通过在再现时识别记录数据的模式来控制最大似然检测的分支度量计算中的预期值来补偿。 基于相对于光盘的VFO面积的再现信号测量边缘偏移量，并且根据测量量预先选择用于显示分支度量计算中的最佳期望值的期望值补偿表。 由此，识别光盘的数据区域中记录数据的图案，通过参照所选择的期望值补偿表来确定根据识别的记录数据模式的最佳期望值，并且分支量度计算由 使用最佳期望值。
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公开(公告)号：US5740154A
公开(公告)日：1998-04-14
申请号：US825421
申请日：1997-03-28
CPC分类号： G11B7/00718 , G11B11/10578 , G11B27/3027 , G11B7/00745 , G11B20/12
摘要： The sector formats of adjacent record tracks are made different from each other so that a region of an ID signal of a header part of one of the record tracks is adjacent to a region (VFO part) other than an ID signal of a header part of the other record track and the regions of ID signals are not adjacent to each other. A crosstalk component from the VFO part which is the closest pattern is so small that it little affects the reproduction of an ID signal. Therefore, an ID signal is correctly reproduced.
摘要翻译： 使相邻记录磁道的扇区格式彼此不同，使得记录磁道之一的标题部分的ID信号的区域与除了标题部分的ID信号之外的区域（VFO部分）相邻 其他记录轨道和ID信号的区域彼此不相邻。 来自最接近图案的VFO部分的串扰分量非常小，以致它几乎不影响ID信号的再现。 因此，ID信号被正确再现。
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公开(公告)号：US4652718A
公开(公告)日：1987-03-24
申请号：US739797
申请日：1985-05-31
申请人： Yoshihide Fujita , Hirofumi Morita
发明人： Yoshihide Fujita , Hirofumi Morita
CPC分类号： B23K11/067 , B23K37/04 , B23Q1/50 , B25J17/0275 , B25J17/0283 , B23K2201/12
摘要： A wrist portion assembly for a workpiece feeding apparatus of a seam welding machine wherein a workpiece is supported through a chucking device on an operational end of a robot so that a portion of the workpiece to be welded is fed between a pair of upper and lower electrode rolls. The wrist portion includes plural turnable members. At least one of the turnable members which serves to move the chucking device upwardly and downwardly by the turning thereof is formed into an idle turnable member having no driving source.
摘要翻译： 一种用于缝焊机的工件供给装置的腕部组件，其中通过机器人的操作端上的夹紧装置支撑工件，使得待焊接的工件的一部分被供给到一对上下电极 劳斯莱斯。 腕部包括多个可转动构件。 用于通过其转动而使夹持装置向上和向下移动的可转动构件中的至少一个形成为没有驱动源的空转构件。
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公开(公告)号：US20100058887A1
公开(公告)日：2010-03-11
申请号：US12449554
申请日：2008-03-21
申请人： Yoshihide Fujita , Fumio Kanno , Takao Minagawa , Shinichi Takai , Takuro Sasaki
发明人： Yoshihide Fujita , Fumio Kanno , Takao Minagawa , Shinichi Takai , Takuro Sasaki
摘要： Stepping force can be transmitted effectively from a pad member to an arm member even when a stepping operation by the foot of an operator is performed at a position shifted in a lateral direction from the center position of the pad member in the lateral direction. The body of a brake pedal (20) that is a pedal for vehicle is formed of an arm member (21) rotatable vertically about a center shaft arranged in a proximal end portion (21A), and a pad member (22) to which a stepping operation by the foot of an operator is performed is attached to an end face (21C) of a distal end (21B) of the arm member (21). The arm member (21) is made of a pipe, and an end face (21C) of the arm member (21) to which the pad member (22) is attached has a laterally long shape.
摘要翻译： 即使当在沿横向方向从衬垫构件的中心位置偏移的位置执行操作者的脚的步进操作时，步进力也可以有效地从衬垫构件传递到臂构件。 作为车辆用踏板的制动踏板（20）的主体由布置在基端部（21A）中的中心轴垂直旋转的臂部件（21）形成， 执行由操作者的脚的踏步操作被附接到臂构件（21）的远端（21B）的端面（21C）。 臂构件（21）由管构成，并且安装有垫构件（22）的臂构件（21）的端面（21C）具有横向长的形状。
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公开(公告)号：US4652719A
公开(公告)日：1987-03-24
申请号：US739798
申请日：1985-05-31
申请人： Yoshihide Fujita , Hirofumi Morita
发明人： Yoshihide Fujita , Hirofumi Morita
CPC分类号： B23K37/04 , B23K11/082
摘要： A combination of a seam welding machine having a machine body and a pair of electrode rolls thereon and a workpiece feeding mechanism for feeding a portion of a three dimensionally curved workpiece between the electrode rolls. The mechanism includes a robot which is three-dimensionally movable and which has a wrist portion of three shaft construction supporting a chucking device for holding the workpiece. The robot is mounted on the machine body of the seam welding machine.
摘要翻译： 具有机体和一对电极辊的缝焊机的组合，以及用于在电极辊之间供给三维弯曲工件的一部分的工件供给机构。 该机构包括三维可移动的机器人，其具有支撑用于保持工件的夹紧装置的三轴结构的腕部。 机器人安装在缝焊机的机体上。
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