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    • 6. 发明授权
    • Host computer, computer terminal, and card access method
    • 主机,计算机终端和卡访问方式
    • US08380897B2
    • 2013-02-19
    • US13486661
    • 2012-06-01
    • Masayoshi Murayama
    • Masayoshi Murayama
    • G06F3/00
    • G06F13/385Y02D10/14Y02D10/151
    • According to one embodiment, the host controller includes a transmission circuit that encodes transmission data, according to a serial transfer format, a reception circuit that decodes received data, according to the serial transfer format, a variable frequency clock generator that generates a card clock and a transfer clock, a card clock output unit that outputs the card clock to the memory card, an interface unit that includes both a transmission interface that transfers the transmission data from the transmission circuit to the memory card in synchronization with the transfer clock and a reception interface that transfers received data from the memory card to the reception circuit in synchronization with the transfer clock, and a setting register circuit that holds setting information for an input/output method of the memory card, and controls frequency of the transfer clock generated by the variable frequency clock generator, based on the setting information.
    • 根据一个实施例,主机控制器包括:传输电路,根据串行传输格式,根据串行传输格式对接收数据进行解码的接收电路,产生卡时钟的可变频率时钟发生器,以及 传送时钟,将卡时钟输出到存储卡的卡时钟输出单元,包括传输接口的接口单元,传输接口与传送时钟同步地将传输数据从传输电路传送到存储卡,接收 接口,其将接收到的数据从存储卡传送到与传送时钟同步的接收电路;以及设置寄存器电路,其保存用于存储卡的输入/输出方法的设置信息,并且控制由存储卡生成的传送时钟的频率 可变频时钟发生器,根据设定信息。
    • 7. 发明申请
    • HOST CONTROLLER, SEMICONDUCTOR DEVICE AND METHOD FOR SETTING SAMPLING PHASE
    • 主机控制器,半导体器件和设置采样相位的方法
    • US20120054531A1
    • 2012-03-01
    • US13075309
    • 2011-03-30
    • Masayoshi Murayama
    • Masayoshi Murayama
    • G06F1/04
    • H03L7/081G06F2213/0038
    • According to one embodiment, there is provided a host controller, which samples reception data in a VDS mode and an FDS mode, includes a VDS phase register which holds a phase shift amount in the VDS mode, an FDS phase register which holds a phase shift amount in the FDS mode, a mode setting unit configured to indicate in which of the VDS mode and the FDS mode data is sampled, a sampling position setting unit which selects the phase shift amount set in one of the VDS and the FDS phase register in accordance with a setting value of the mode setting unit, and provides the selected phase shift amount as a sampling position, and a clock phase shift unit which shifts a phase of an input clock signal in accordance with the shift amount, and provides the shifted input clock signal as a sampling clock.
    • 根据一个实施例,提供了以VDS模式和FDS模式对接收数据进行采样的主机控制器,包括保持VDS模式中的相移量的VDS相位寄存器,保持相移的FDS相位寄存器 FDS模式中的相位偏移量被设定为在VDS模式和FDS模式数据中的哪一个被采样的模式设定单元, 根据模式设定单元的设定值,提供所选择的相移量作为采样位置,以及时钟相移单元,其根据移位量移位输入时钟信号的相位,并提供偏移输入 时钟信号作为采样时钟。
    • 10. 发明授权
    • Host computer, computer terminal, and card access method
    • 主机,计算机终端和卡访问方式
    • US08214563B2
    • 2012-07-03
    • US12823632
    • 2010-06-25
    • Masayoshi Murayama
    • Masayoshi Murayama
    • G06F3/00
    • G06F13/385Y02D10/14Y02D10/151
    • According to one embodiment, the host controller includes a transmission circuit that encodes transmission data, according to a serial transfer format, a reception circuit that decodes received data, according to the serial transfer format, a variable frequency clock generator that generates a card clock and a transfer clock, a card clock output unit that outputs the card clock to the memory card, an interface unit includes a transmission interface that transfers the transmission data from the transmission circuit to the memory card in synchronization with the transfer clock, and a reception interface that transfers received data from the memory card to the reception circuit in synchronization with the transfer clock, and a setting register circuit that holds setting information concerning an input/output method of the memory card, and controls frequency of the transfer clock generated by the variable frequency clock generator, based on the setting information.
    • 根据一个实施例,主机控制器包括:传输电路,根据串行传输格式,根据串行传输格式对接收数据进行解码的接收电路,产生卡时钟的可变频率时钟发生器,以及 传输时钟,将时钟输出到存储卡的卡时钟输出单元,接口单元包括传输接口,该传输接口与传输时钟同步地将传输数据从传输电路传送到存储卡;接收接口 其将接收到的数据从存储卡传送到与传送时钟同步的接收电路,以及设置寄存器电路,其保存关于存储卡的输入/输出方法的设置信息,并且控制由变量产生的传送时钟的频率 频率时钟发生器,基于设置信息。