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    • 8. 发明授权
    • Storage device and memory controller
    • 存储设备和存储控制器
    • US08949515B2
    • 2015-02-03
    • US13512958
    • 2010-12-01
    • Masataka NishiRyo FujitaRyoichi InadaTakuma NishimuraMasahiro ShiraishiKoji Matsuda
    • Masataka NishiRyo FujitaRyoichi InadaTakuma NishimuraMasahiro ShiraishiKoji Matsuda
    • G06F12/02
    • G06F12/0246G06F2212/7203
    • Disclosed is a storage device using non-volatile semiconductor memory that achieves high performance and long life for the device. When managing the non-volatile semiconductor memory (2), physical blocks are classified into three types: scratch blocks (22), data blocks (23), and erased blocks (24). Data writing from a host device (3) is performed on the scratch blocks. When the number of empty pages within a scratch block becomes less than a predetermined number or no longer exists, the block is treated thereafter as a data block, and one of the erased blocks is newly assigned as a scratch block. If there are insufficient erased blocks, a block with relatively less valid data is selected from among the data blocks. After copying all valid data included in the block to a scratch block, the block is erased, and thus an erased block is acquired.
    • 公开了一种使用非易失性半导体存储器的存储装置,其实现了该装置的高性能和长寿命。 当管理非易失性半导体存储器(2)时,物理块被分为三种类型:暂存块(22),数据块(23)和擦除块(24)。 在暂存块上执行来自主机(3)的数据写入。 当暂存块内的空页数少于预定数量或不再存在时,该块被当作数据块处理,并且其中一个擦除块被新分配为暂存块。 如果擦除块不足,则从数据块中选择具有相对较少有效数据的块。 将块中包含的所有有效数据复制到暂存块后,块被擦除,从而获取被擦除的块。
    • 10. 发明申请
    • ACOUSTIC CONVERSION DEVICE
    • 声音转换装置
    • US20110311090A1
    • 2011-12-22
    • US13108489
    • 2011-05-16
    • Tsutomu NagumoKoji MatsudaKenji HiraiwaTakayuki IshiiKoji NagenoTakeshi HaraTakahiro Suzuki
    • Tsutomu NagumoKoji MatsudaKenji HiraiwaTakayuki IshiiKoji NagenoTakeshi HaraTakahiro Suzuki
    • H04R1/00
    • H04R11/02
    • An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame in a state covering the opening of the holding frame, a diaphragm held on the inner side of the holding frame in a state adhered to the resin film, and a beam portion of which the tip portion formed integrally with the diaphragm is combined with the vibrating portion of the armature, for propagating the vibration of the vibrating portion to the diaphragm.
    • 一种声转换装置,包括:驱动单元,包括一对彼此相对配置的磁体;一对磁体附接的磁轭;供给驱动电流的线圈;驱动电流时振动的振动部; 设置在所述一对磁体之间的电枢,所述振动部通过所述线圈; 以及膜片单元,其包括具有开口的保持框架,在覆盖所述保持框架的开口的状态下粘附到所述保持框架的树脂膜,以与所述树脂膜粘附的状态保持在所述保持框架的内侧的隔膜 并且将与隔膜一体形成的前端部的梁部与电枢的振动部结合,将振动部的振动传播到振动膜。