公开(公告)号：US5144605A

公开(公告)日：1992-09-01

申请号：US449933

申请日：1989-12-18

申请人： Seiji Kobayashi ,  Norio Nishida ,  Naoya Eguchi ,  Shunji Yoshimura

发明人： Seiji Kobayashi ,  Norio Nishida ,  Naoya Eguchi ,  Shunji Yoshimura

IPC分类号： G11B21/08 ,  G11B7/007 ,  G11B7/085 ,  G11B21/10

CPC分类号： G11B7/08505

摘要： The method of the present invention comprises detecting a recording pattern, which is different for each tract, in each of track groups consisting of a predetermined number N or tracks recorded in advance on an optical disk(1), generating a tracking signal S.sub.ET whose signal level changes on the positive and negative sides of a target track T.sub.0 as the center, and moving the optical spot to the target track T.sub.0 on the basis of this tracking signal S.sub.ET. In this manner, it becomes possible to prevent uncontrollable movement of the optical spot and align the optical spot to a desired recording track within a short period of time.

摘要翻译： PCT No.PCT / JP89 / 00414 Sec。 371日期1989年12月18日 102（e）1989年12月18日PCT PCT 1989年4月18日PCT。 第WO89 / 10614号公报 日本公报1989年11月2日。本发明的方法包括检测在由光盘（1）上预先记录的预定数量N或轨迹组成的每个轨道组中的每条道路不同的记录模式， 产生其目标轨道T0的正负侧的信号电平变化为中心的跟踪信号SET，并且基于该跟踪信号SET将光点移动到目标轨道T0。 以这种方式，可以防止光点的不可控制的移动并且在短时间内将光点对准所需的记录轨道。

公开(公告)号：US4843601A

公开(公告)日：1989-06-27

申请号：US131574

申请日：1987-12-11

申请人： Naoya Eguchi ,  Norio Nishida

发明人： Naoya Eguchi ,  Norio Nishida

IPC分类号： G11B7/085 ,  G11B7/09

CPC分类号： G11B7/0938 ,  G11B7/08517 ,  G11B7/0901 ,  G11B7/094

摘要： A tracking servo system in a recordable optical disk player apparatus utilizes clock signals to be produced by irradiating laser beam to clock pits in servo areas as a reference signal for on-track adjustment. Based on the clock signal, polarity of a tracking error signal is detected for selectively opening and closing servo loop of the tracking servo system. CLOSED LOOP on-track adjustment will be performed while a laser beam spot is in a range where the tracking error indicative value is gradually reduced according to decreasing of the distance of the laser beam spot to the track center. On the other hand, OPEN LOOP on-track adjustment will be performed while the laser beam spot is in a range where the tracking error indicative value is increased according to decreasing of the distance between the laser beam spot and the track center. Since the polarity of the tracking error signal may indicate the range of the laser beam spot position, selection of the CLOSED LOOP and OPEN LOOP can be made without requiring the signal to be reproduced from the data area. :

公开(公告)号：US4853918A

公开(公告)日：1989-08-01

申请号：US145308

申请日：1988-01-19

申请人： Seiji Kobayashi ,  Norio Nishida

发明人： Seiji Kobayashi ,  Norio Nishida

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B21/08 ,  G11B21/10

CPC分类号： G11B21/085 ,  G11B7/08505 ,  G11B7/08517 ,  G11B7/0901

摘要： A tracking servo follows recording tracks formed in a recording medium. A signal proportional to a displacement from a recording track in a track pitch direction of the recording track is used as a displacement signal, so that following a given track or jumping to a new track position can be stably and easily performed.

摘要翻译： 跟踪伺服跟随在记录介质中形成的记录轨迹。 使用与记录轨道的轨道间距方向上的记录轨迹的位移成比例的信号作为位移信号，使得可以稳定且容易地执行跟踪给定的轨迹或跳到新的轨迹位置。

公开(公告)号：US08308214B2

公开(公告)日：2012-11-13

申请号：US12950068

申请日：2010-11-19

申请人： Takayuki Souma ,  Norio Nishida

发明人： Takayuki Souma ,  Norio Nishida

IPC分类号： B62D43/00

CPC分类号： B62D21/152 ,  B62D43/10

摘要： A lower structure of a vehicle body rear part includes a spare tire housing formed on a rear floor, a rear cross member disposed in front of the spare tire housing to connect side frames, and a hook reinforcing member disposed in the center in the vehicle width direction on the lower surface of the spare tire housing and extending in the vehicle longitudinal direction. The front end portion of the hook reinforcing member is connected to the rear cross member, and the rear end portion thereof extends to the rear end portion of the rear floor. The side frame at the vehicle rear of the rear cross member is divided into a frame front part and a frame rear part in the vehicle longitudinal direction, and the hook reinforcing member is divided into a reinforcing member front part and a reinforcing member rear part in the vehicle longitudinal direction. The frame front part has a rigidity higher than that of the frame rear part, and the reinforcing member rear part has a rigidity higher than that of the reinforcing member front part, and the two division positions coincide with each other in the longitudinal direction.

摘要翻译： 车身后部的下部结构包括形成在后地板上的备用轮胎壳体，设置在备用轮胎壳体的前方以连接侧框架的后横向构件，以及设置在车辆宽度的中心的钩加强构件 在备用轮胎壳体的下表面上沿车辆纵向方向延伸。 钩加强构件的前端部与后横梁连接，后端部延伸到后底板的后端部。 后横梁的车辆后方的侧框架在车辆前后方向上被分割成框架前部和框架后部，钩加强构件被分成加强构件前部和加强构件后部 车辆纵向。 框架前部具有比框架后部的刚性更高的刚性，并且加强构件后部的刚度高于加强构件前部的刚度，并且两个分割位置在纵向方向上彼此重合。

公开(公告)号：US20110121597A1

公开(公告)日：2011-05-26

申请号：US12948981

申请日：2010-11-18

申请人： Masahiro Asou ,  Takayuki Souma ,  Norio Nishida

发明人： Masahiro Asou ,  Takayuki Souma ,  Norio Nishida

IPC分类号： B62D43/06

CPC分类号： B62D21/152 ,  B62D25/087 ,  B62D43/10

摘要： A lower structure of a vehicle body rear part includes a spare tire housing formed on a rear floor, a rear cross member disposed in front of the spare tire housing to connect side frames, and a hook reinforcing member extending in the vehicle longitudinal direction. The side frame at the vehicle rear of the rear cross member is divided into a frame front part and a frame rear part in the vehicle longitudinal direction, and the hook reinforcing member is divided into a reinforcing member front part and a reinforcing member rear part in the vehicle longitudinal direction. The lower structure is configured so that when a load F is applied from the vehicle rear to a vehicle body rear part, the side frame is deformed so as to be bent in an upward convex shape at a division position of the frame front part and the frame rear part, and also the rear floor and the hook reinforcing member are deformed so as to be bent in a downward convex shape at a division position of the reinforcing member front part and the reinforcing member rear part.

摘要翻译： 车身后部的下部构造包括形成在后地板上的备用轮胎壳体，设置在备用轮胎壳体前方以连接侧框架的后横向构件以及沿车辆纵向方向延伸的钩加强构件。 后横梁的车辆后方的侧框架在车辆前后方向上被分割成框架前部和框架后部，钩加强构件被分成加强构件前部和加强构件后部 车辆纵向。 下部结构被构造为使得当从车辆后部向车体后部施加载荷F时，侧框架变形，以便在框架前部的分割位置处以向上凸起的形状弯曲，并且 后部地板和钩加强构件在加强构件前部和加强构件后部的分割位置处变形成向下凸出的形状。

公开(公告)号：US5586098A

公开(公告)日：1996-12-17

申请号：US407966

申请日：1995-03-22

申请人： Norio Nishida ,  Futoshi Tsukada

发明人： Norio Nishida ,  Futoshi Tsukada

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B11/105 ,  G11B19/00 ,  G11B20/12 ,  G11B20/14

CPC分类号： G11B7/126 ,  G11B19/00 ,  G11B20/1403 ,  G11B7/00745 ,  G11B11/10513 ,  G11B11/10595 ,  G11B20/1258

摘要： An optical disc apparatus using zone record system that successively records data in a plurality of zones without a time lag in switching zones is disclosed. A phase error signal is formed with a reproduced signal of a servo zone of an optical disc 1. A servo clock is generated by a servo PLL 8. Data PLLs 9a and 9b divide the frequency of the servo clock. The laser power of the servo zone is detected by a circuit 11a so as to perform a read ALPC operation. The record laser power is detected by a circuit 11b so as to perform a write ALPC operation. A DSP 14 compares the monitor values and a reference value and controls a bias value of the drive signal so that the detected value becomes equal to the reference value. In write mode, a laser device emits pulse laser light in response to the data clock. Since the write ALPC operation is performed for the next zone while it is performed for the present zone, one of the PLLs 9a and 9b generates data clock for the present zone. The other generates the data clock for the next zone. These data clocks are selectively supplied to the laser device.

摘要翻译： 公开了一种使用区域记录系统的光盘装置，其在切换区域中不间断地在多个区域中连续地记录数据。 用光盘1的伺服区的再生信号形成相位误差信号。伺服时钟由伺服PLL8产生。数据PLL 9a和9b分频伺服时钟的频率。 由电路11a检测伺服区的激光功率，以执行读取ALPC操作。 记录激光功率由电路11b检测，以执行写入ALPC操作。 DSP 14比较监视值和参考值，并控制驱动信号的偏置值，使得检测值变得等于参考值。 在写入模式下，激光装置响应于数据时钟发射脉冲激光。 由于在针对当前区域执行对下一区域执行写入ALPC操作时，PLL 9a和9b之一为该区域生成数据时钟。 另一个生成下一个区域的数据时钟。 这些数据时钟被选择性地提供给激光装置。

公开(公告)号：US5218491A

公开(公告)日：1993-06-08

申请号：US719770

申请日：1991-06-24

申请人： Norio Nishida ,  Yoshihide Yamashita

发明人： Norio Nishida ,  Yoshihide Yamashita

IPC分类号： G11B19/28

CPC分类号： G11B19/28

摘要： Disk drive apparatus for reproducing information signal from a disk on which the information signal and a servo sector pulse are recorded, which includes sampling circuit for sampling an output of a counter. A speed control signal is generated by detecting a difference between continuous sampling values, and a spindle motor is control by the speed control signal. When the rotational speed is slow, the sampling is performed by a detection output for the spindle motor, and when the rotational speed is nearly equal to a normal speed, that is performed by the sector pulse.

公开(公告)号：US5063545A

公开(公告)日：1991-11-05

申请号：US446443

申请日：1989-12-05

申请人： Norio Nishida

发明人： Norio Nishida

IPC分类号： G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B21/08

CPC分类号： G11B7/013 ,  G11B7/08529 ,  G11B7/09

摘要： Apparatus for detecting the speed with which a light beam emitted by an optical head accesses a target record track on an optical disc in which record track traverse data indicating track number are recorded previously. The traverse data is read and traverse data signals indicative of the scanning position of the light beam are produced. Deviations in the traverse data signals obtained at predetermined time intervals are detected to form upper order data bits representing access speed. At the same time, tracking error data signals proportionate to the deviation of the light beam from a record track on the disc are produced and a deviation in the tracking error data signals is detected to form the lower data bits of the access speed.

公开(公告)号：US08091941B2

公开(公告)日：2012-01-10

申请号：US12948981

申请日：2010-11-18

申请人： Masahiro Asou ,  Takayuki Souma ,  Norio Nishida

发明人： Masahiro Asou ,  Takayuki Souma ,  Norio Nishida

IPC分类号： B62D43/00

CPC分类号： B62D21/152 ,  B62D25/087 ,  B62D43/10

摘要： A lower structure of a vehicle body rear part includes a spare tire housing formed on a rear floor, a rear cross member disposed in front of the spare tire housing to connect side frames, and a hook reinforcing member extending in the vehicle longitudinal direction. The side frame at the vehicle rear of the rear cross member is divided into a frame front part and a frame rear part in the vehicle longitudinal direction, and the hook reinforcing member is divided into a reinforcing member front part and a reinforcing member rear part in the vehicle longitudinal direction. The lower structure is configured so that when a load F is applied from the vehicle rear to a vehicle body rear part, the side frame is deformed so as to be bent in an upward convex shape at a division position of the frame front part and the frame rear part, and also the rear floor and the hook reinforcing member are deformed so as to be bent in a downward convex shape at a division position of the reinforcing member front part and the reinforcing member rear part.

摘要翻译： 车身后部的下部构造包括形成在后地板上的备用轮胎壳体，设置在备用轮胎壳体前方以连接侧框架的后横向构件以及沿车辆纵向方向延伸的钩加强构件。 后横梁的车辆后方的侧框架在车辆前后方向上被分割成框架前部和框架后部，钩加强构件被分成加强构件前部和加强构件后部 车辆纵向。 下部结构被构造为使得当从车辆后部向车体后部施加载荷F时，侧框架变形，以便在框架前部的分割位置处以向上凸起的形状弯曲，并且 后部地板和钩加强构件在加强构件前部和加强构件后部的分割位置处变形成向下凸出的形状。

公开(公告)号：US20110155772A1

公开(公告)日：2011-06-30

申请号：US12974342

申请日：2010-12-21

申请人： Takayuki Souma ,  Norio Nishida

发明人： Takayuki Souma ,  Norio Nishida

IPC分类号： B62D43/06

CPC分类号： B62D21/152 ,  B62D43/10

摘要： A lower structure of a vehicle body rear part, when receiving a load from a rear side of the vehicle, prevents deformation of a spare tire housing toward a front side of the vehicle and displacement of the front end of a spare tire toward the front side of the vehicle, and also facilitates the tipping up of a rear portion of the spare tire. In particular, a lower structure of a vehicle body rear part 1 has a spare tire housing 3 formed in a rear floor 2 of the vehicle body rear part 1; a rear cross member 5 which joins paired side frames 4 arranged respectively on a left side and a right side in a vehicle width direction, and which is provided at a location frontward of the spare tire housing 3; and a hook reinforcement 6 for a tow hook 14, extending in a vehicle front and rear direction and arranged at a center, in the vehicle width direction, of a bottom surface of the spare tire housing 3, wherein a front end of the hook reinforcement 6 is attached to the rear cross member 5, the hook reinforcement 6 forms a closed cross section in cooperation with the rear floor 2 and is formed such that the closed cross section is larger on a rear side than on a front side, and the hook reinforcement 6 is divided into a reinforcement front portion 6b and a reinforcement rear portion 6c (FIG. 2).

摘要翻译： 车身后部的下部结构在从车辆的后侧接收负载时，防止备用轮胎壳体朝向车辆前侧的变形，并且备胎的前端向前侧移位 ，并且还便于备用轮胎的后部的倾覆。 特别地，车身后部1的下部结构具有形成在车体后部1的后方底板2中的备用轮胎壳体3， 后横梁5，其分别配置在车宽方向的左侧和右侧的成对的侧框架4，并且设置在备用轮胎壳体3的前方的位置; 以及用于牵引钩14的钩加固件6，其在车辆前后方向上延伸并且布置在备胎轮胎壳体3的底表面的沿车宽方向的中心处，其中钩加强件的前端 6与后横梁5连接，钩加强件6与后底板2协作形成闭合的横截面，并且形成为在后侧上比前侧更大的闭合横截面，并且钩 加强件6分为加固前部6b和加强件后部6c（图2）。