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    • 2. 发明授权
    • Data processing medium, its backup circuit, and data processing system
    • 数据处理介质,其备用电路和数据处理系统
    • US5761061A
    • 1998-06-02
    • US663314
    • 1996-08-16
    • Kazutoshi Amano
    • Kazutoshi Amano
    • G06F11/20G06K19/077G11C5/14G05B9/02
    • G06K19/0705G06F11/2015G06K19/077G11C5/141Y10T307/62
    • There is disclosed a backup circuit for a memory card where the stored data in an S-RAM is retained even when the card (2) contains a main battery (18) whose output voltage is 3.3 V, an auxiliary battery (20), and a charging prevention diode (22). The main battery (18) and the auxiliary battery (20) are connected in parallel. Between their junction (28) and a built-in power supply (8) of a personal computer (4), the charging prevention diode (22) is provided. Because the second diode (22) is placed in a forward direction running from the junction (28) toward a voltage supply line (10), the auxiliary battery (20) is charged only from the main battery (18), and a charging current from the built-in power supply (8) does not flow into the auxiliary battery (20).
    • PCT No.PCT / US94 / 14364 Sec。 371日期:1996年8月16日 102(e)日期1996年8月16日PCT 1994年12月13日PCT PCT。 出版物WO95 / 16940 日期:1995年6月22日披露了即使卡(2)包含输出电压为3.3V的主电池(18),辅助电池(18)的存储卡中也存储有S-RAM中的存储数据的备用电路 (20)和充电防止二极管(22)。 主电池(18)和辅助电池(20)并联连接。 在他们的连接点(28)和个人计算机(4)的内置电源(8)之间,提供充电防止二极管(22)。 因为第二二极管(22)被放置在从接点(28)向电压供给线(10)运行的正向方向上,所以辅助电池(20)仅从主电池(18)充电,并且充电电流 从内置电源(8)不会流入辅助电池(20)。
    • 5. 发明授权
    • Shielded memory card connector
    • 屏蔽存储卡连接器
    • US5711679A
    • 1998-01-27
    • US752756
    • 1996-11-20
    • John M. SpicklerKazutoshi AmanoChih-Hui HsiaLein Wan Lu
    • John M. SpicklerKazutoshi AmanoChih-Hui HsiaLein Wan Lu
    • H01R12/50H01R12/71H01R12/72H01R12/73H01R13/633H01R24/00H01R107/00H01R23/72
    • H01R23/6873H01R12/712H01R12/73H01R12/721H01R13/633
    • A memory card connector which comprises a header (210, 210') and a carrier connected to the header, wherein the header is provided with a plurality of pins extended in both inward and outward directions. The inward pins are used for inserting a memory card to be received in the carrier. A vertical circuit board (214, 214') is electrically and securely connected to the outward pins of the header. The lower end of the vertical circuit board is detachably inserted into a connector (203, 203') securely mounted to the surface of a mainboard for electrical connection. Alternately a horizontal circuit board may be used to which the outward pins are diagonally attached and which is connected to the mainboard by a vertical connector. The height of the circuit board can be set according to the requirement of a specific application of the memory card connector so that the space between the memory card connector and the mainboard can be properly utilized. The outward pins are shielded by means of a conductive shield (322, 322' or 522, 522') and that conductive shield is grounded to the mainboard through a ground plane in the vertical or horizontal circuit board. The ground plane is interposed between signal planes in parallel, spaced and equal distance relation between two signal planes. One group of outward extending pins is connected to each of the signal planes to control impedance.
    • 一种存储卡连接器,包括集管(210,210')和连接到所述集管的载体,其中所述集管设置有沿向内和向外方向延伸的多个销。 向内的引脚用于插入要接收在载体中的存储卡。 垂直电路板(214,214')电气且牢固地连接到集管的向外的销。 垂直电路板的下端可拆卸地插入到牢固地安装到主板表面以用于电连接的连接器(203,203')中。 或者,可以使用水平电路板,其中向外的销对角连接,并且通过竖直连接器连接到主板。 可以根据存储卡连接器的特定应用的要求设置电路板的高度,从而可以适当地利用存储卡连接器和主板之间的空间。 外部引脚通过导电屏蔽(322,322'或522,522')屏蔽,并且导电屏蔽通过垂直或水平电路板中的接地平面接地到主板。 接地平面以两个信号平面之间的平行,间隔和等距离关系置于信号平面之间。 一组向外延伸的引脚连接到每个信号平面以控制阻抗。