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    • 1. 发明授权
    • Electronic equipment and antenna mounting printed-circuit board
    • 电子设备和天线安装印刷电路板
    • US06940458B2
    • 2005-09-06
    • US10721671
    • 2003-11-25
    • Kouichi MukaiShuichiro YasudaKenji AsakuraHidenobu Muranaka
    • Kouichi MukaiShuichiro YasudaKenji AsakuraHidenobu Muranaka
    • H01Q1/24H01Q1/36H01Q1/38H01Q1/40H01Q21/24H01Q1/48
    • H01Q1/36H01Q1/243H01Q1/40H01Q21/24
    • A PDA includes a printed-circuit board on which at least one printed antenna pair having two chip-like printed antennas, which receive linearly polarized signals and are disposed along axes orthogonal to each other, is mounted. In each of the printed antennas, an open end is formed of at least two antenna conductors separated from each other. Besides, in the printed-circuit board, a ground required by one or plural other modules is disposed so as to surround a surrounding area of at least three sides of four sides forming a rectangular section in each of the printed antennas, and each of the printed antennas is disposed and mounted so that a remaining one side faces an edge portion of the printed-circuit board. While the PDA can receive circularly polarized signals very effectively, the degree of freedom in layout is greatly expanded and miniaturization can be realized.
    • PDA包括印刷电路板,其上安装有至少一个具有两个片状印刷天线的印刷天线对,其接收线偏振信号并且沿着彼此正交的轴设置。 在每个印刷天线中,开口端由彼此分离的至少两个天线导体形成。 此外,在印刷电路板中,设置一个或多个其他模块所需的地面,以便围绕在每个印刷天线中形成矩形截面的四边形的至少三边的至少三边的周围区域,并且 布置和安装印刷天线,使得剩余的一侧面对印刷电路板的边缘部分。 虽然PDA可以非常有效地接收圆偏振信号,但是布局自由度大大地扩大并且可以实现小型化。
    • 6. 发明授权
    • Storage device and information rerecording method
    • 存储设备和信息记录方法
    • US08213214B2
    • 2012-07-03
    • US12747413
    • 2008-12-11
    • Tomohito TsushimaTsunenori ShiimotoShuichiro Yasuda
    • Tomohito TsushimaTsunenori ShiimotoShuichiro Yasuda
    • G11C11/00
    • G11C13/0064G11C13/0069G11C2013/0071G11C2013/009G11C2213/56G11C2213/79
    • A storage device that improves ability of adjusting a resistance value level in recording and enables stable verification control is provided. VWL supplied from a second power source to a control terminal of a transistor is increased (increase portion: ΔVWL) for every rerecording by verification control by a WL adjustment circuit. In the case where a variable resistive element is able to record multiple values, ΔVWL is a value variable for every resistance value level of multiple value information. That is, ΔVWL is a value variable according to magnitude relation of a variation range of recording resistance of the variable resistive element due to a current. In the region where the variation range of the recording resistance is large (source-gate voltage VGS of the transistor is small), ΔVWL is small, while in the region where the variation range of the recording resistance is small (VGS is large), ΔVWL is large.
    • 提供一种存储装置,其提高了在记录中调整电阻值电平的能力并且实现了稳定的验证控制。 通过WL调整电路的验证控制,每次重新录制时,从第二电源向晶体管的控制端子提供的VWL增加(增加部分:&Dgr; VWL)。 在可变电阻元件能够记录多个值的情况下,&Dgr; VWL是多值信息的每个电阻值电平的值变量。 也就是说,&Dgr; VWL是根据由于电流引起的可变电阻元件的记录电阻的变化范围的大小关系的值变量。 在记录电阻的变化范围大(晶体管的源极栅极电压VGS小)的区域中,&Dgr; VWL小,而在记录电阻的变化范围小(VGS大的区域) ),&Dgr; VWL很大。