公开(公告)号：US5170249A

公开(公告)日：1992-12-08

申请号：US510867

申请日：1990-04-18

申请人： Hiroyasu Ohtsubo ,  Yukinobu Tada ,  Masaru Noda ,  Michio Masuda

发明人： Hiroyasu Ohtsubo ,  Yukinobu Tada ,  Masaru Noda ,  Michio Masuda

IPC分类号： H04N11/00 ,  H04N5/14 ,  H04N9/04 ,  H04N9/07 ,  H04N11/24

CPC分类号： H04N5/142 ,  H04N9/045

摘要： In a digital signal processor for an imaging system, a first pixel signal including first and second color information items and a second pixel signal including third and fourth color information items are alternately outputted to generate an image signal, which is subdivided into a portion to be delayed by a horizontal scanning period and a portion not to be delayed such that these signals are thereafter combined to form an image signal having respective pixel signals so as to achieve a matrix processing on the resultant signal to attain red, blue, and green signals.

摘要翻译： 在用于成像系统的数字信号处理器中，交替地输出包括第一和第二颜色信息项的第一像素信号和包括第三和第四颜色信息项的第二像素信号，以产生图像信号，其被细分成一部分 延迟水平扫描周期和不被延迟的部分，使得这些信号此后被组合以形成具有各个像素信号的图像信号，以便对所得到的信号进行矩阵处理，以获得红色，蓝色和绿色信号。

公开(公告)号：US20050088928A1

公开(公告)日：2005-04-28

申请号：US10988536

申请日：2004-11-16

申请人： Yukinobu Tada ,  Yoshinori Ishikawa

发明人： Yukinobu Tada ,  Yoshinori Ishikawa

IPC分类号： G11B7/00 ,  G11B7/085

CPC分类号： G11B19/02 ,  G11B7/08511 ,  G11B7/08529 ,  G11B19/12 ,  G11B2007/0013

摘要： A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from the error signal. A speed sensor detects movement speed of an objective lens; and a speed control circuit generates a voltage for controlling the objective lens, based on the detected movement speed. Movement speed of the objective lens is detected during focus jump, a corresponding lens drive signal is generated, and an end position is determined from behavior of the error signal immediately before the end of the jump. A focus control is pulled, from a focus point corresponding to one recording layer, into a focus point corresponding to another recording layer forcibly in a stable manner.

摘要翻译： 聚焦跳跃技术使得对盘的记录层进行聚焦控制，使得其效果不被物理干扰或物镜的移动速度的变化所吸收。 该技术涉及监测聚焦误差信号的电平并且从误差信号中抑制噪声。 速度传感器检测物镜的移动速度; 并且速度控制电路基于检测到的移动速度产生用于控制物镜的电压。 在聚焦跳跃期间检测物镜的移动速度，产生对应的镜头驱动信号，并且根据在跳跃结束之前的误差信号的行为来确定结束位置。 从对应于一个记录层的对焦点将焦点控制以稳定的方式被强制地拉入对应于另一记录层的对焦点。

公开(公告)号：US5839683A

公开(公告)日：1998-11-24

申请号：US708097

申请日：1996-08-27

申请人： Masayuki Kijima ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Takeo Ohkouchi ,  Yukinobu Tada

发明人： Masayuki Kijima ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Takeo Ohkouchi ,  Yukinobu Tada

IPC分类号： G11B15/093 ,  G11B15/22 ,  G11B15/46 ,  G11B15/48 ,  G11B15/54 ,  B65H59/38 ,  G11B23/42

CPC分类号： G11B15/093 ,  G11B15/22 ,  G11B15/46 ,  G11B15/48 ,  G11B15/54

摘要： On the occasion of stopping the tape being run at a high speed, a winding radius of the tape supply reel is detected, and a tape deceleration rate is set in response to the detected winding radius. After the tape running speed is decelerated in the deceleration rate up to a preset speed, VL, at which the tape being run can be stopped without damage, the tape is stopped by a brake means. Thereby, the tape can be driven at a higher speed than the speed, VL, without damage, enabling a reduction of time required for a fast forward/rewind operation.

摘要翻译： 在停止磁带高速运行的情况下，检测磁带供带盘的卷绕半径，并根据检测到的绕线半径设定磁带减速度。 在磁带运行速度以减速率减速至预设速度之后，可以停止运行磁带的VL而不损坏，磁带由制动装置停止。 因此，可以以比速度VL更高的速度驱动带，而不会损坏，从而能够减少快进/快退操作所需的时间。

公开(公告)号：US07200075B2

公开(公告)日：2007-04-03

申请号：US10988537

申请日：2004-11-16

申请人： Yukinobu Tada ,  Yoshinori Ishikawa

发明人： Yukinobu Tada ,  Yoshinori Ishikawa

IPC分类号： G11B7/00

CPC分类号： G11B19/02 ,  G11B7/08511 ,  G11B7/08529 ,  G11B19/12 ,  G11B2007/0013

摘要： A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from the error signal. A speed sensor detects movement speed of an objective lens; and a speed control circuit generates a voltage for controlling the objective lens, based on the detected movement speed. Movement speed of the objective lens is detected during focus jump, a corresponding lens drive signal is generated, and an end position is determined from behavior of the error signal immediately before the end of the jump. A focus control is pulled, from a focus point corresponding to one recording layer, into a focus point corresponding to another recording layer forcibly in a stable manner.

摘要翻译： 聚焦跳跃技术使得对盘的记录层进行聚焦控制，使得其效果不被物理干扰或物镜的移动速度的变化所吸收。 该技术涉及监测聚焦误差信号的电平并且从误差信号中抑制噪声。 速度传感器检测物镜的移动速度; 并且速度控制电路基于检测到的移动速度产生用于控制物镜的电压。 在聚焦跳跃期间检测物镜的移动速度，产生对应的镜头驱动信号，并且根据在跳跃结束之前的误差信号的行为来确定结束位置。 从对应于一个记录层的对焦点将焦点控制以稳定的方式被强制地拉入对应于另一记录层的对焦点。

公开(公告)号：US07106666B2

公开(公告)日：2006-09-12

申请号：US10682234

申请日：2003-10-10

申请人： Yoshinori Ishikawa ,  Yukinobu Tada ,  Motoyuki Suzuki

发明人： Yoshinori Ishikawa ,  Yukinobu Tada ,  Motoyuki Suzuki

IPC分类号： G11B21/08

CPC分类号： G11B7/08517 ,  G11B7/08511

摘要： During a normal operation, a tracking control signal from a tracking controller is supplied to an adder via a first switch and to a radial deviation component detector. The radial deviation component detector determines a radial deviation component EC of AC caused by radial deviation of an optical disk from the tracking control signal and supplied that component to the adder via another switch. For a track jump, the first switch is turned OFF, cutting off the tracking control signal. Thus, the radial deviation component EC and a jump pulse signal from a jump signal generator are added together by the adder. However, an offset of the tracking control signal TC detected by a DC component detector is further added. To avoid instability, the track jump is compensated so as to be normally carried out even if a DC offset is added to a tracking control signal.

摘要翻译： 在正常操作期间，来自跟踪控制器的跟踪控制信号通过第一开关和径向偏差分量检测器提供给加法器。 径向偏差分量检测器确定由光盘的径向偏离与跟踪控制信号引起的AC的径向偏差分量EC，并通过另一个开关将该分量提供给加法器。 对于轨道跳跃，第一个开关关闭，切断跟踪控制信号。 因此，来自跳跃信号发生器的径向偏差分量EC和跳跃脉冲信号由加法器相加在一起。 然而，还增加了由DC分量检测器检测到的跟踪控制信号TC的偏移。 为了避免不稳定性，即使对跟踪控制信号添加DC偏移，也可以补偿轨迹跳跃，以便正常地进行。

公开(公告)号：US07876654B2

公开(公告)日：2011-01-25

申请号：US11641763

申请日：2006-12-20

申请人： Yukinobu Tada

发明人： Yukinobu Tada

IPC分类号： G11B7/00

CPC分类号： G11B7/0948

摘要： An IC provided in an optical disk device having an objective lens and a pickup for a disk. The IC has a circuit for holding a signal which drives the objective lens in a focus or tracking direction and for detecting the moving direction of the objective lens, and a circuit for generating a signal which applies an acceleration to the objective lens. When the objective lens passes through a defect on the disk, on the basis of the detected moving direction of the objective lens, the IC applies the acceleration alternately in plus and minus directions to the objective lens to make the objective lens stationary. As a result, after the defect passage, the objective lens can be quickly returned to a focused point or an on-track position and reproducing/recording operation can be resumed.

摘要翻译： 提供在具有物镜的光盘装置中的IC和用于盘的拾取器。 IC具有用于保持以焦点或跟踪方向驱动物镜并用于检测物镜的移动方向的信号的电路，以及用于产生向物镜施加加速度的信号的电路。 当物镜通过盘上的缺陷时，基于检测到的物镜移动方向，IC将加速度以正方向和负方向交替地加到物镜上，以使物镜平稳。 结果，在缺陷通过之后，可以将物镜快速地返回到聚焦点或轨道上的位置，并且可以恢复再现/记录操作。

公开(公告)号：US20090310458A1

公开(公告)日：2009-12-17

申请号：US12465770

申请日：2009-05-14

申请人： Koichiro Nishimura ,  Masato Soma ,  Toshifumi Takeuchi ,  Manabu Katsuki ,  Yukinobu Tada

发明人： Koichiro Nishimura ,  Masato Soma ,  Toshifumi Takeuchi ,  Manabu Katsuki ,  Yukinobu Tada

IPC分类号： G11B7/0045

CPC分类号： G11B7/12 ,  G11B7/00456 ,  G11B20/10009 ,  G11B20/10481 ,  G11B2220/2541 ,  G11B2220/2562

摘要： The present invention aims to, when recording pulse information are transmitted to a laser driver lying over a pickup through an optical disk, reduce the number of transmission paths or lines from a conventional transmission method and avoid degradation of recording performance due to transmission path characteristics upon fastening of a recording speed thereby to provide stable recording performance at high-speed recording. The invention of the present application reduces the number of transmission signals by encoding multi-level laser pulse information transmitted by the laser driver. Further, gray codes are used for encoding to reduce constraints of skew between bits. Furthermore, encoding is executed using each state transition and the state transitions are switched according to each recording mark and space, thereby reducing the occurrence of a short pulse on each transmission path. In addition, the presence or absence of the encoding is switched to enable signal transmission, thereby making it possible to make compatible adaptation to complex laser pulse information and adaptation to high-speed recording.

摘要翻译： 本发明的目的在于，当通过光盘将记录脉冲信息发送到位于拾取器上的激光驱动器时，从传统的传输方法减少传输路径或线路的数量，并且避免由于传输路径特性导致的记录性能的降低 紧固记录速度，从而在高速记录时提供稳定的记录性能。 本申请的发明通过对由激光驱动器发送的多级激光脉冲信息进行编码来减少发送信号的数量。 此外，灰色代码用于编码以减少位之间的偏斜的约束。 此外，使用每个状态转换执行编码，并且根据每个记录标记和空间切换状态转换，从而减少每个传输路径上的短脉冲的发生。 此外，编码的存在或不存在被切换以使得能够进行信号传输，从而使得可以对复杂的激光脉冲信息进行兼容的适应并适应于高速记录。

公开(公告)号：US20070147206A1

公开(公告)日：2007-06-28

申请号：US11641763

申请日：2006-12-20

申请人： Yukinobu Tada

发明人： Yukinobu Tada

IPC分类号： G11B7/00

CPC分类号： G11B7/0948

摘要： An IC provided in an optical disk device having an objective lens and a pickup for a disk. The IC has a circuit for holding a signal which drives the objective lens in a focus or tracking direction and for detecting the moving direction of the objective lens, and a circuit for generating a signal which applies an acceleration to the objective lens. When the objective lens passes through a defect on the disk, on the basis of the detected moving direction of the objective lens, the IC applies the acceleration alternately in plus and minus directions to the objective lens to make the objective lens stationary. As a result, after the defect passage, the objective lens can be quickly returned to a focused point or an on-track position and reproducing/recording operation can be resumed.

摘要翻译： 提供在具有物镜的光盘装置中的IC和用于盘的拾取器。 IC具有用于保持以焦点或跟踪方向驱动物镜并用于检测物镜的移动方向的信号的电路，以及用于产生向物镜施加加速度的信号的电路。 当物镜通过盘上的缺陷时，基于检测到的物镜移动方向，IC将加速度以正方向和负方向交替地加到物镜上，以使物镜平稳。 结果，在缺陷通过之后，可以将物镜快速地返回到聚焦点或轨道上的位置，并且可以恢复再现/记录操作。

公开(公告)号：US06895393B1

公开(公告)日：2005-05-17

申请号：US09410056

申请日：1999-10-01

申请人： Toru Numata ,  Tadashi Kuwabara ,  Hiroshi Shimizu ,  Misuzu Mochizuki ,  Yukinobu Tada ,  Naoki Yamamoto ,  Yutaka Igarashi ,  Shinichiro Fukushima ,  Mayumi Ueyama ,  Rituko Kanazawa ,  Maki Furui ,  Katsuki Ikuta

发明人： Toru Numata ,  Tadashi Kuwabara ,  Hiroshi Shimizu ,  Misuzu Mochizuki ,  Yukinobu Tada ,  Naoki Yamamoto ,  Yutaka Igarashi ,  Shinichiro Fukushima ,  Mayumi Ueyama ,  Rituko Kanazawa ,  Maki Furui ,  Katsuki Ikuta

IPC分类号： B65G61/00 ,  G06F15/00 ,  G06F21/00 ,  G06F21/10 ,  G06F21/33 ,  G06F21/34 ,  G06F21/62 ,  G06Q10/00 ,  G06Q30/02 ,  G06Q30/06 ,  G06Q50/00 ,  G09C1/00 ,  G06F17/60

CPC分类号： G06Q30/06 ,  G06Q20/1235

摘要： For changing services to readers who desires to obtain electronic books exactly or minutely, an electronic book management system 1 distributes at least electronic purchase certificates relating to books which are stocked at a bookstores owing a bookstore terminal device 2, in advance, to that bookstore terminal device 2. When buying the book(s), a reader obtains in an IC card 4 owned by her/him a purchase certificate(s) of that book(s) which she/he bought, from the bookstore terminal 2. When ordering to obtain the electronic book(s), the reader transmits the purchase certificate(s) from a reader terminal device 3 to the electronic book management system 1 through a communication network 5. The electronic book management system 1 changes over it's service when supplying the electronic book(s) to that reader depending upon the existence of the purchase certificate(s).

摘要翻译： 为了向希望以正确或精确的方式获得电子书籍的读者提供服务，电子书籍管理系统1至少将与存储在书店终端设备2的书店的书籍有关的电子购买证书预先分发给该书店终端 设备2。 在购买书籍时，读者从书店终端2获得由他/他所拥有的IC卡4所购买的那本书的购买凭证。 当订购获取电子书时，读取器通过通信网络5将购买证书从读取终端设备3发送到电子书管理系统1。 电子书管理系统1根据购买凭证的存在，在向读者提供电子书时更改其服务。

公开(公告)号：US07471597B2

公开(公告)日：2008-12-30

申请号：US11715407

申请日：2007-03-08

申请人： Yukinobu Tada ,  Yoshinori Ishikawa

发明人： Yukinobu Tada ,  Yoshinori Ishikawa

IPC分类号： G11B7/00

CPC分类号： G11B19/02 ,  G11B7/08511 ,  G11B7/08529 ,  G11B19/12 ,  G11B2007/0013

摘要： A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from the error signal. A speed sensor detects movement speed of an objective lens; and a speed control circuit generates a voltage for controlling the objective lens, based on the detected movement speed. Movement speed of the objective lens is detected during focus jump, a corresponding lens drive signal is generated, and an end position is determined from behavior of the error signal immediately before the end of the jump. A focus control is pulled, from a focus point corresponding to one recording layer, into a focus point corresponding to another recording layer forcibly in a stable manner.

摘要翻译： 聚焦跳跃技术使得对盘的记录层进行聚焦控制，使得其效果不被物理干扰或物镜的移动速度的变化所吸收。 该技术涉及监测聚焦误差信号的电平并且从误差信号中抑制噪声。 速度传感器检测物镜的移动速度; 并且速度控制电路基于检测到的移动速度产生用于控制物镜的电压。 在聚焦跳跃期间检测物镜的移动速度，产生对应的镜头驱动信号，并且根据在跳跃结束之前的误差信号的行为来确定结束位置。 从对应于一个记录层的对焦点将焦点控制以稳定的方式被强制地拉入对应于另一记录层的对焦点。