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    • 11. 发明授权
    • Semiconductor memory device and test method therefor
    • 半导体存储器件及其测试方法
    • US07688655B2
    • 2010-03-30
    • US11747552
    • 2007-05-11
    • Yasuhiro Takai
    • Yasuhiro Takai
    • G11C29/00
    • G11C29/50016G11C11/401G11C11/406G11C11/40622G11C29/14
    • Disclosed is a semiconductor memory device, in which the refresh period of a fail cell or cells is set so as to be shorter than that of the normal cells, comprises a control circuit for exercising control in such a manner that, if, when refreshing the cell of a first address, generated responsive to a refresh command, with an input control signal being of a first value, a second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the information ore-programmed in a refresh redundant ROM, the cell of the second address is refreshed, and also in such a manner that, if, with the input control signal of a second value, the second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the predetermined information, only the cell of the second address is refreshed, without refreshing the cell of the first address, generated responsive to the refresh command.
    • 公开了一种半导体存储器件,其中将故障单元或单元的刷新周期设置为短于正常单元的刷新周期,包括用于以这样的方式进行控制的控制电路,即如果在刷新 被确定为响应于刷新命令产生的第一地址的单元,其中输入控制信号是第一值,对于来自第一地址的预定位不同的第二地址被确定为对应于故障单元 基于在刷新冗余ROM中编程的信息,第二地址的单元被刷新,并且还以这样的方式,如果利用第二值的输入控制信号,第二地址不同于 来自第一地址的预定比特的值被确定为对应于故障小区,基于预定信息,仅刷新第二地址的小区,而不刷新第一地址的小区,生成的响应 刷新命令。
    • 12. 发明申请
    • DLL circuit
    • DLL电路
    • US20090289676A1
    • 2009-11-26
    • US12453764
    • 2009-05-21
    • Yasuhiro Takai
    • Yasuhiro Takai
    • H03L7/06H03L7/00
    • H03L7/0814H03K5/13H03K5/133H03K2005/00052H03L7/0818
    • A DLL circuit includes a coarse delay adjustment circuit and a fine delay adjustment circuit, which further includes a first fine delay circuit and a second fine delay circuit serving as an interpolation circuit. The coarse delay adjustment circuit delays a reference clock signal by a plurality of delay stages so as to provide the first fine delay circuit with two phase signals having the phase difference of two delay stages, which are then converted into two delay signals having the phase difference of one delay stage. The delay signals are subjected to interpolation, thus producing an output clock signal. Due to a reduction of the phase difference in the first fine delay circuit, it is possible to reduce the minimum operation cycle of the interpolation circuit and to thereby increase the maximum operation frequency of the DLL circuit.
    • DLL电路包括粗延迟调整电路和精细延迟调整电路,其还包括作为内插电路的第一精细延迟电路和第二精细延迟电路。 粗延迟调整电路通过多个延迟级对参考时钟信号进行延时,以向第一精细延迟电路提供具有两个延迟级的相位差的两个相位信号,然后将其转换成具有相位差的两个延迟信号 一个延迟阶段。 对延迟信号进行内插,从而产生输出时钟信号。 由于第一精细延迟电路中的相位差减小,可以减小内插电路的最小工作周期,从而增加DLL电路的最大工作频率。
    • 15. 发明授权
    • Fixing apparatus and image forming apparatus including priority temperature control
    • 包括优先温度控制的固定装置和图像形成装置
    • US07519306B2
    • 2009-04-14
    • US11679219
    • 2007-02-27
    • Noriko InoueAtsushi IdeKohji AokiYasuhiro Takai
    • Noriko InoueAtsushi IdeKohji AokiYasuhiro Takai
    • G03G15/20
    • G03G15/2039
    • A fixing control section of a fixing apparatus according to the present invention includes an end section priority temperature control mode. In the end section priority temperature control mode, the fixing control section temporarily turns off a main heater heating a center section of a fixing roller among a plurarity of heaters disposed inside the fixing roller in a case where a surface temperature of the end section of the fixing roller has reached a preset upper-limit fixing temperature, even if the surface temperature of the center section of the fixing roller is lower than a preset fixing temperature. As a result, destruction of the fixing roller can be prevented by a simple arrangement in the fixing apparatus which includes a plurarity of the heaters disposed inside the fixing roller.
    • 根据本发明的定影装置的定影控制部分包括端部优先温度控制模式。 在端部优先温度控制模式中,定影控制部临时关闭加热设置在定影辊内部的多个加热器中的定影辊的中心部分的主加热器, 即使定影辊的中心部分的表面温度低于预设的定影温度,定影辊也达到预定的上限定影温度。 结果,通过在定影装置中简单的布置来防止定影辊的破坏,该定影装置包括设置在定影辊内部的加热器的多次。
    • 19. 发明申请
    • Toner supply device, image forming apparatus and toner supplying method
    • 调色剂供给装置,成像装置和调色剂供给方法
    • US20070230974A1
    • 2007-10-04
    • US11713018
    • 2007-03-02
    • Yasunobu OhkawaYasuhiro Takai
    • Yasunobu OhkawaYasuhiro Takai
    • G03G15/08
    • G03G15/0856G03G15/0872
    • A toner supply device which includes: a multiple number of toner bottles; and a toner supply assembly mounting mechanism having the toner bottles mounted thereon and feeding toner discharged from the toner bottles to a developing unit and is controlled so as to supply toner to the developing unit in accordance with the amount of toner consumed in the process of printing of the developing unit, further includes: micro switches which each detect the amount of toner left in the toner storing portion with toner filled therein; and a controller for controlling the operation of the toner supply device, which selects one of the toner bottles to be used for supply of toner to a toner feed device, based on the amounts of toner in the multiple toner bottles, which are detected by the micro switches.
    • 一种调色剂供应装置,包括:多个调色剂瓶; 以及调色剂供应组件安装机构,其具有安装在其上的调色剂瓶并且将从调色剂瓶排出的调色剂供给到显影单元并被控制以便根据在印刷过程中消耗的调色剂量向显影单元供应调色剂 显影单元还包括:微动开关,每个微调开关,其中检测到调色剂存储部分中残留的调色剂的量,其中填充有调色剂; 以及控制器,用于控制调色剂供应装置的操作,该调色剂供应装置基于多个调色剂瓶中的调色剂的量来选择用于向调色剂供给装置供应调色剂的调色剂瓶中的一个, 微动开关