-
51.发明授权Method for recording and reproducing information using at least two energy beams 失效使用至少两个能量束记录和再现信息的方法
公开(公告)号：US5404348A
公开(公告)日：1995-04-04
申请号：US634049
申请日：1990-12-26
申请人： Motoyasu Terao , Kunikazu Ohnishi , Tesuya Nishida , Hiroshi Yasuoka , Keikichi Ando , Norio Ohta , Hirofumi Sukeda , Yoshito Tsunoda , Toshimitsu Kaku
发明人： Motoyasu Terao , Kunikazu Ohnishi , Tesuya Nishida , Hiroshi Yasuoka , Keikichi Ando , Norio Ohta , Hirofumi Sukeda , Yoshito Tsunoda , Toshimitsu Kaku
IPC分类号： G11B7/0045 , G11B7/006 , G11B11/105 , G11B7/00
CPC分类号： G11B7/006 , G11B11/10506 , G11B11/10515 , G11B11/10517 , G11B7/00454
摘要： According to the present invention, a so-called overwrite operation which records new information while erasing existing information can be reliably performed in an information storage system such as optical disk system. In addition, whether the rewriting of recording has been properly done can be verified.
摘要翻译： 根据本发明，可以在诸如光盘系统的信息存储系统中可靠地执行在擦除现有信息时记录新信息的所谓的重写操作。 另外，可否验证记录重写是否正确完成。
-
52.发明授权
公开(公告)号：US4783776A
公开(公告)日：1988-11-08
申请号：US886413
申请日：1986-07-17
申请人： Masaji Ishigaki , Hideo Onuki , Yukio Fukui , Masayuki Inoue , Kunikazu Ohnishi
发明人： Masaji Ishigaki , Hideo Onuki , Yukio Fukui , Masayuki Inoue , Kunikazu Ohnishi
CPC分类号： G11B7/24085 , G11B7/004
摘要： A digital information recording and reproducing method for significantly improving the transfer rate of digital information, comprises the steps of: forming a plurality of light beam guide tracks on a recording medium capable of multiple light-wavelength recording, the tracks being spaced apart by a predetermined pitch and each of the tracks comprising a series of pre-pits disposed in a scan direction and spaced apart by an interval longer than the diameter of a spot of a light beam for use in recording and reproducing; and recording and reproducing an information bit by changing the light beam to have a different wavelength predetermined n times in a predetermined order while the light beam is scanned by one interval of the pre-pits.
摘要翻译： 一种用于显着提高数字信息传送速率的数字信息记录和再现方法包括以下步骤：在能够进行多次光波长记录的记录介质上形成多个光束导轨，所述轨道间隔开预定的 间距，并且每个轨道包括沿扫描方向布置的一系列预凹坑，间隔开比用于记录和再现的光束点的直径更长的间隔; 并且通过在预定凹坑的一个间隔扫描光束时以预定顺序将光束改变为具有不同波长的预定n次来记录和再现信息位。
-
公开(公告)号：US08693075B2
公开(公告)日：2014-04-08
申请号：US13450507
申请日：2012-04-19
申请人： Takeshi Nakao , Kunikazu Ohnishi , Hiromi Kita , Norio Hosaka
发明人： Takeshi Nakao , Kunikazu Ohnishi , Hiromi Kita , Norio Hosaka
IPC分类号： G02B26/12
CPC分类号： G02B26/101 , G02B27/0911 , G02B27/0955 , G03B21/2033 , G03B33/06 , G03B33/12 , H04N9/3129 , H04N9/3194
摘要： Optical beams emitted by optical sources are incident on a mirror surface of a scan mirror in a substantially vertical direction and reflected in a substantially vertical direction by the scan mirror. The mirror surface of the scan mirror is driven to repeatedly rotate two-dimensionally by a predetermined scan angle by a scan mirror drive circuit. A polarized beam splitter causes the optical beam emitted by the optical source to be incident on the scan mirror through a quarter wave plate, and outputs the optical beam that has been reflected by the scan mirror and passed through the quarter wave plate toward the screen. A scan angle expander is arranged on the output side of the polarized beam splitter, whereby the scan angle of the optical beam is increased by N times.
摘要翻译： 由光源发射的光束以大致垂直的方向入射在扫描镜的镜面上，并通过扫描镜以基本上垂直的方向反射。 通过扫描镜驱动电路驱动扫描镜的镜面被二维重复旋转预定的扫描角。 偏振分束器使得由光源发射的光束通过四分之一波片入射到扫描镜上，并输出被扫描反射镜反射并通过四分之一波片的光束朝向屏幕。 在偏振分束器的输出侧设置有扫描角扩展器，由此使光束的扫描角度增加N次。
-
公开(公告)号：US20130076800A1
公开(公告)日：2013-03-28
申请号：US13552682
申请日：2012-07-19
申请人： Michio HATAGI , Takeshi Nakao , Tomoto Kawamura , Kunikazu Ohnishi , Hiromi Kita
发明人： Michio HATAGI , Takeshi Nakao , Tomoto Kawamura , Kunikazu Ohnishi , Hiromi Kita
CPC分类号： H04N9/3129 , G02B26/105 , G02B27/1006 , G02B27/104 , G02B27/1066 , G02B27/141
摘要： In a light beam scanning projection apparatus which scans a light beam emitted from a laser light source, an image display apparatus is configured including a plurality of light beams, a reflection mirror for reflecting the light beams to project them onto a screen or the like, and a mirror driving unit for driving the reflection mirror so that the plurality of light beams are incident on the reflection mirror with different optical axes and projected on different projection areas, thereby displaying a single image with a plurality of images. Further, by forming a single image by causing a plurality of the light beams to have predetermined relative angles thereamong so as to make a plurality of images overlap on each other with slight shifts, a scanning projection apparatus is provided with which the luminance of the image is improved while conforming to safety standards.
摘要翻译： 在扫描从激光光源发射的光束的光束扫描投影装置中，图像显示装置被配置为包括多个光束，用于反射光束以将其投影到屏幕等上的反射镜， 以及反射镜驱动单元，用于驱动反射镜，使得多个光束以不同的光轴入射在反射镜上并投影在不同的投影区域上，从而显示具有多个图像的单个图像。 此外，通过使多个光束以预定的相对角度形成单个图像，以便使多个图像彼此轻微地重叠，提供了一种扫描投影装置，其中图像的亮度 在符合安全标准的情况下得到改进。
-
公开(公告)号：US08331207B2
公开(公告)日：2012-12-11
申请号：US12074968
申请日：2008-03-07
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0912 , G11B7/131 , G11B7/133 , G11B2007/0013
摘要： For use with a multi-layer optical disc, an optical pickup can eliminate a problem of causing a focus error signal and a tracking error signal to fluctuate due to interference of a signal light beam with a return light beam from another recording surface of a multi-layer optical disc during reproduction with an optical pickup that produces a tracking error signal and a focus error signal from a difference signal based on polarized reflected light.
摘要翻译： 为了与多层光盘一起使用，光学拾取器可以消除由于信号光束与来自多个光盘的另一个记录表面的返回光束的干扰而导致聚焦误差信号和跟踪误差信号波动的问题 在利用光学拾取器进行再现期间的光盘，其从基于偏振反射光的差分信号产生跟踪误差信号和聚焦误差信号。
-
公开(公告)号：US20120275002A1
公开(公告)日：2012-11-01
申请号：US13450507
申请日：2012-04-19
申请人： Takeshi NAKAO , Kunikazu Ohnishi , Hiromi Kita , Norio Hosaka
发明人： Takeshi NAKAO , Kunikazu Ohnishi , Hiromi Kita , Norio Hosaka
IPC分类号： G02B26/10
CPC分类号： G02B26/101 , G02B27/0911 , G02B27/0955 , G03B21/2033 , G03B33/06 , G03B33/12 , H04N9/3129 , H04N9/3194
摘要： Optical beams emitted by optical sources are incident on a mirror surface of a scan mirror in a substantially vertical direction and reflected in a substantially vertical direction by the scan mirror. The mirror surface of the scan mirror is driven to repeatedly rotate two-dimensionally by a predetermined scan angle by a scan mirror drive circuit. A polarized beam splitter causes the optical beam emitted by the optical source to be incident on the scan mirror through a quarter wave plate, and outputs the optical beam that has been reflected by the scan mirror and passed through the quarter wave plate toward the screen. A scan angle expander is arranged on the output side of the polarized beam splitter, whereby the scan angle of the optical beam is increased by N times.
摘要翻译： 由光源发射的光束以大致垂直的方向入射在扫描镜的镜面上，并通过扫描镜以基本上垂直的方向反射。 通过扫描镜驱动电路驱动扫描镜的镜面被二维重复旋转预定的扫描角。 偏振分束器使得由光源发射的光束通过四分之一波片入射到扫描镜上，并输出被扫描反射镜反射并通过四分之一波片的光束朝向屏幕。 在偏振分束器的输出侧设置有扫描角扩展器，由此使光束的扫描角度增加N次。
-
公开(公告)号：US20100322047A1
公开(公告)日：2010-12-23
申请号：US12826827
申请日：2010-06-30
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/0912 , G11B7/0943 , G11B2007/0013
摘要： When recording/reproducing an optical disc having a recording layer of multi-layer structure, an unwanted optical beam reflected from a recording layer other than a target layer for recording/reproduction is incident on a photodetector to cause an unwanted disturbance component to leak to a detection signal, giving rise to a degradation in the quality of a tracking control signal. In an optical pickup apparatus, for suppression of the degradation, an optical element is mounted having a diffraction area for diffracting part of the optical beam and light receiving planes for sub-optical beams are provided each of which has a light shielding zone or dead zone of a predetermined width on its central sectioning line.
摘要翻译： 当记录/再现具有多层结构的记录层的光盘时，从用于记录/再现的目标层以外的记录层反射的不需要的光束入射到光电检测器上，以使不需要的干扰成分泄漏到 检测信号，导致跟踪控制信号的质量下降。 在用于抑制劣化的光学拾取装置中，安装具有用于衍射光束的一部分的衍射区域的光学元件，并且每个具有遮光区域或死区的子光束的光接收平面 在其中心切片线上具有预定宽度。
-
公开(公告)号：US07724626B2
公开(公告)日：2010-05-25
申请号：US11905533
申请日：2007-10-02
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0945 , G11B2007/0006
摘要： An optical pickup includes a diffraction grating partitioned into three areas, in which the phase of periodic grating groove structure in an area is successively shifted from that in the adjacent area by 90°. In the generation of a differential push-pull signal, an amplification factor K for sub push-pull signals is varied depending on the type of the optical disk. By such composition of the optical pickup, amplitude deterioration of the tracking error signal accompanying displacement of the object lens is reduced.
-
公开(公告)号：US20100124161A1
公开(公告)日：2010-05-20
申请号：US12693042
申请日：2010-01-25
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1263 , G11B7/1378 , G11B2007/0006 , G11B2007/0013 , G11B2007/13727
摘要： An optical pickup and an optical information recording and reproducing device in which spherical aberration correction control after a disc is loaded can be efficiently made in a short time. Before an information recording medium is loaded into a drive, an optical axis direction position of a concave lens is preset to a state so as to optimize a converging spot on a recording surface of a single-layered medium of as a first recording medium or a predetermined layer (first layer having a substrate thickness of 0.1 mm) of a medium having two or more layers to which the recording/reproduction is executed by a laser light source. After the information recording medium is loaded, if it is determined to be a second (third) recording medium to which the recording/reproduction is executed by a laser light source, setting of the optical axis direction position of the concave lens is changed.
摘要翻译： 可以在短时间内有效地进行光盘拾取器和光盘信息记录和再现装置，其中装载光盘之后的球面像差校正控制。 在将信息记录介质装载到驱动器中之前，将凹透镜的光轴方向位置预先设定为使作为第一记录介质的单层介质的记录面上的会聚点优化的状态 具有由激光光源执行记录/再现的具有两层或多层的介质的预定层（具有0.1mm的基板厚度的第一层）。 在信息记录介质被加载之后，如果确定是由激光源执行记录/再现的第二（第三）记录介质，则改变凹透镜的光轴方向位置的设置。
-
公开(公告)号：US20100034071A1
公开(公告)日：2010-02-11
申请号：US12417037
申请日：2009-04-02
申请人： Kunikazu OHNISHI
发明人： Kunikazu OHNISHI
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B2007/0013
摘要： Undesired disturbance components leak eventually into various detection signals and reproduction signals as stray optical beams reflected from recording layers other than a reproduction layer overlap with signal beams on a light reception surface of an optical detector and interference occurs between them when an optical disc having multi-layered recording layers is reproduced. A diffraction grating having a specific grating groove pattern is arranged immediately ahead of an optical detector or in a return optical path. Such optical unit averages the disturbance components resulting from interference between a signal beam and a stray beam and can satisfactorily improve influences of leak.
摘要翻译： 不期望的干扰分量最终会泄漏到各种检测信号和再现信号中，因为从再生层以外的记录层反射的杂散光束与光学检测器的光接收表面上的信号光束重叠，并且当具有多个光盘的光盘时， 复制分层记录层。 具有特定格栅凹槽图案的衍射光栅布置在光学检测器的正前方或者在返回光路中。 这样的光学单元平均化由信号光束和杂散光束之间的干涉导致的干扰分量，并且可以令人满意地改善泄漏的影响。
-
-
-
-
-
-
-
-
-
搜索结果
66 条记录 (耗时 0.019 秒)
