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    • 5. 发明公开
    • Optical disk drawing apparatus, host computer, and optical disk drawing method
    • 的装置和方法的光盘和在主计算机上绘制
    • EP1942492A2
    • 2008-07-09
    • EP07024989.1
    • 2007-12-21
    • YAMAHA CORPORATION
    • Yamada, SeiyaItoga, Hisanori
    • G11B7/0037G11B7/0045
    • G11B7/0037G11B7/006
    • A drawing pulse generating unit of an optical disk recording apparatus judges a bit stream of main data contained in a bit stream signal of frame-formatted data, and generates pulse signals DOTX 1 and DOTX 2 based upon the judgment, and then, outputs the generated pulse signals DOTX 1 and DOTX 2 to the gate circuit. In a time period during which a signal level of the pulse signal DOTX 1 is an "H" level, the gate circuit supplies a bit stream signal of the frame-formatted data to a laser driver. In a time period during which a signal level of the pulse signal DOTX 1 is an "L" level, the gate circuit supplies a bit stream signal indicative of an erase level to the laserdriver. The laser driver controls an optical pickup so that a laser light having strength indicative of the bit stream signal is irradiated.
    • 的光盘记录装置判断的绘画脉冲发生单元包含在帧格式的数据的比特流信号的主数据的比特流,和基因速率脉冲信号.DOTX 1和.DOTX 2基于该判断,然后,输出所生成的 脉冲信号.DOTX 1和2 .DOTX到门电路。 其中在脉冲信号.DOTX 1的信号电平是“H”电平的时间段期间,门电路供给帧格式的数据的一个比特流信号到激光驱动器。 其中在脉冲信号.DOTX 1的信号电平为“L”电平的时间段期间,门电路供给指示的擦除电平到激光驱动器的比特流信号。 上光学拾取器的激光驱动器进行控制,以便确实具有指示该比特流信号的强度的激光照射。
    • 6. 发明公开
    • Optical disk recording/drawing method
    • Verfahren zum Aufzeichnen / Zeichnen auf einer optischen Platte
    • EP1903562A2
    • 2008-03-26
    • EP07018818.0
    • 2007-09-25
    • YAMAHA CORPORATION
    • Itoga, HisanoriYamada, Seiya
    • G11B7/0037
    • G11B7/0037G11B7/1263G11B7/24038
    • A relationship between a length of a pixel formed by an image drawing operation along a disk circumferential direction, and a length of a pit formed by an data recording operation along the disk circumferential direction is set in such a manner that a plurality of pits are entered to the length of 1 pixel along the disk circumferential direction. While one pixel is being drawn by employing the image drawing beam, within such a section that the power of the data recording beam becomes recording power in order to form the pit, the power of the image drawing beam is temporarily lowered to such a power which does not change the visible light characteristic of the image drawing layer.
    • 通过沿着圆盘方向的图像绘制操作形成的像素的长度与沿着盘周向的数据记录操作形成的凹坑的长度之间的关系被设定为使得多个凹坑进入 沿圆盘方向的长度为1像素。 当通过采用图像绘制光束绘制一个像素时,在这样的部分中,为了形成凹坑,数据记录光束的功率成为记录功率,图像绘制光束的功率被暂时降低到这样的功率, 不会改变图像绘制层的可见光特性。
    • 7. 发明公开
    • Method and optical disk recording/drawing apparatus
    • Verfahren und optische Plattenvorrichtung zum Aufzeichnen / Zeichnen
    • EP1870887A2
    • 2007-12-26
    • EP07011913.6
    • 2007-06-18
    • YAMAHA CORPORATION
    • Yamada, SeiyaFushiki, TatsuoItoga, Hisanori
    • G11B7/09G11B7/0037
    • G11B7/0037G11B7/0908G11B7/1263G11B7/1369G11B7/24038
    • A liquid crystal optical device (liquid crystal lens) is located along the optical axis of one of two laser beams emitted by an optical pickup. The two laser beams (20,22), which are respectively modulated using a recording pulse and a drawing pulse, are coaxially emitted through the objective lens (18) of the optical pickup, while the focal points are shifted in the light axial direction. A drawing layer (26) and a data recording layer (36) are laminated on an optical disk (12), and by controlling voltages applied to the liquid crystal optical device, the distance between the focal positions of the two beams is adjusted so that the distance equals the distance between the two layers. While this adjusted state is maintained, one of the laser beams is focused on one of the layers by a focusing actuator, and data recording and drawing are simultaneously performed.
    • 液晶光学装置(液晶透镜)沿着由光学拾取器发射的两个激光束之一的光轴定位。 使用记录脉冲和绘制脉冲分别调制的两个激光束(20,22)通过光学拾取器的物镜(18)同轴地发射,同时焦点沿光轴向移动。 在光盘(12)上叠层有绘图层(26)和数据记录层(36),通过控制施加在液晶光学装置上的电压,调整两个光束的焦点位置之间的距离,使得 距离等于两层之间的距离。 当保持该调整状态时,其中一个激光束通过聚焦致动器聚焦在其中一个层上,同时执行数据记录和绘制。
    • 8. 发明公开
    • Forming visual image on optical disk by laser beam
    • 通过激光辐射装置产生的光盘上的可见图像
    • EP1742218A2
    • 2007-01-10
    • EP06013484.8
    • 2006-06-29
    • YAMAHA CORPORATION
    • Itoga, HisanoriYamada, SeiyaAsami, JunFushiki, Tatsuo
    • G11B23/40G11B19/04G11B27/36
    • G11B23/40G11B7/0037G11B19/04G11B19/28G11B20/10527G11B2020/10675G11B2020/10814G11B2220/2537
    • When "buffer under run" (BUR) occurs during recording of a visible image on an optical disk, recording operation is interrupted. As in the case of type A, when BUR1 occurs after data have been transferred through an integral multiple of one revolution, data are recorded continuously from a reference angle position without host device discarding data. As in the case of type B, when BUR2 occurs after data have been transferred in a value which is other than the integral multiple of one revolution, data corresponding to a duration from the position where BUR occurs to the start of the next revolution are discarded, data are continuously recorded from the reference angle position. Thereby, rendering can be spliced in a visually-smooth manner. Further, as in the case of type C, when the volume of data remaining in a buffer has become equal to or less than a "buffer under run" threshold value, subsequent transfer of data from the host device may be interrupted, and rendering may be resumed without the host device discarding data.
    • 当“下运行缓冲液”(BUR)到光盘的可视图像的记录过程中发生时,记录操作被中断。 如在类型A的情况下,当数据已通过一转的整数倍转印后BUR1的发生时,数据被从基准角度位置连续地记录,而不主机装置丢弃数据。 如在类型B的情况下,当之后数据已被转移到一个值的所有比一转的整数倍其他,数据对应于从其中BUR的发生到下一旋转开始时的位置的持续时间被丢弃BUR2的发生 ,数据被连续地从基准角度位置记录下来。 由此,渲染可以在视觉上平滑的方式拼接。 此外,如在C型的情况下,当残留在缓冲器中的数据量已经变得比“缓冲器欠载运行”阈值等于或更少,随后从所述主机装置的数据的传输可被中断,并且呈现可以 无主机设备丢弃数据恢复。