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    • 3. 发明授权
    • Memory control device and semiconductor processing apparatus
    • 存储器控制装置和半导体处理装置
    • US08397036B2
    • 2013-03-12
    • US13406262
    • 2012-02-27
    • Rintaro ImaiSatoshi Nakano
    • Rintaro ImaiSatoshi Nakano
    • G06F13/20
    • G06F13/1689
    • The present invention provides a memory control device and a semiconductor processing apparatus which can be flexibly made adapted to a plurality of kinds of semiconductor memories. An SDRAM controller has: a register unit to which a command to be issued and a minimum interval (wait time) between issue of the command and issue of the next command are written by a CPU; and a command issuing unit that stops issue of the next command until the minimum interval written in the register elapses since issue of the command written in the register. Therefore, by changing software for the CPU, the SDRAM controller can be flexibly adapted to a plurality of kinds of SDRAMs.
    • 本发明提供一种能够灵活地适应于多种半导体存储器的存储器控​​制装置和半导体处理装置。 SDRAM控制器具有:由CPU写入发出命令和发出下一个命令的最小间隔(等待时间)的寄存器单元; 以及一个命令发布单元,直到写入寄存器中的命令发出后,停止发出下一个命令直到写入寄存器的最小间隔过去。 因此,通过改变CPU的软件,可以将SDRAM控制器灵活地适应于多种SDRAM。
    • 6. 发明授权
    • Objective lens and optical pickup
    • 物镜和光学拾音器
    • US06674059B1
    • 2004-01-06
    • US09857468
    • 2001-09-12
    • Satoshi Nakano
    • Satoshi Nakano
    • G02B2740
    • G11B7/1353G11B7/1374G11B7/139G11B2007/0006
    • By providing an area of a smaller numerical aperture and an area of a greater numerical aperture on an objective lens, forming holograms of different characteristics corresponding to the respective areas, and using diffracted light beams of the same order of light beams having different wavelengths emitted from two light sources so as to carry out recording to and reproduction from an optical disc, it is possible to carry out recording and reproduction of information signals to and from a plurality of optical recording media of different types while efficiently using the light beams, and to eliminate the problem of a stray light due to an unwanted diffracted light.
    • 通过在物镜上提供具有较小数值孔径的面积和更大数值孔径的面积,形成与各个区域对应的不同特征的全息图,并且使用具有不同波长的相同次数的衍射光束 两个光源,以便对光盘进行记录和再现,可以有效地使用光束,对多个不同类型的光学记录介质进行信息信号的记录和再生, 消除由于不想要的衍射光引起的杂散光的问题。
    • 7. 发明授权
    • Apparatus and method for selectively reproducing information from
differing recording media
    • 用于从不同记录介质选择性再现信息的装置和方法
    • US6031792A
    • 2000-02-29
    • US816940
    • 1997-03-14
    • Satoshi NakanoJunichi Suzuki
    • Satoshi NakanoJunichi Suzuki
    • G11B7/00G11B7/005G11B7/09G11B7/13G11B7/135G11B7/20G11B19/12G11B11/00
    • G11B7/131G11B19/12G11B7/005G11B7/0908G11B2007/0006G11B7/0943
    • A recording-medium reproducing apparatus in which different types of recording mediums can be reproduced by the single reproducing apparatus. The apparatus selectively reproduces information from a first recording medium by applying light to an information recording layer through a transparent substrate having a first thickness, and reproduces information from a second recording medium by applying light to an information recording layer through a transparent substrate having a second thickness. The apparatus has a light-generating device for generating light to be applied to the information recording layer of the recording medium. A light-applying device converges the light generated by the light-generating device and applies it to the information recording layer of the recording medium. A light-receiving device, which is divided into a central portion and a peripheral portion, separately receives the light reflected by the recording medium.
    • 一种记录介质再现装置,其中可由单个再现装置再现不同类型的记录介质。 该装置通过通过具有第一厚度的透明基板向信息记录层施加光来选择性地再现来自第一记录介质的信息,并且通过通过具有第二厚度的透明基板向信息记录层施加光来从第二记录介质再现信息 厚度。 该装置具有用于产生要施加到记录介质的信息记录层的光的光产生装置。 光照射装置会聚由发光装置产生的光并将其施加到记录介质的信息记录层。 被分成中心部分和周边部分的光接收装置分别接收由记录介质反射的光。