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    • 25. 发明申请
    • Tamper-resistant electronic circuit and module incorporating electrically conductive nano-structures
    • 具有防篡改电子电路和包含导电纳米结构的模块
    • US20110031982A1
    • 2011-02-10
    • US12806127
    • 2010-08-04
    • John LeonJames YamaguchiVolkan OzguzW. Eric Boyd
    • John LeonJames YamaguchiVolkan OzguzW. Eric Boyd
    • G01R27/28H02H3/08H05K7/00
    • H01L23/576H01L25/0657H01L2225/06517H01L2225/06527H01L2225/06541H01L2924/0002H01L2924/3011H01L2924/00
    • A device and method are disclosed comprising one or more electrically conductive nano-structures defined on one or more surfaces of a microelectronic circuit such as an integrated circuit die, microelectronic circuit package (such as a TSOP, BGA or other prepackaged IC) a stacked microelectronic circuit package, or on the surface of one or more layers in a stack of layers containing one or more ICs.In one embodiment, the electrically conductive nano-structure is in electrical connection with a monitoring circuit and acts as a “trip wire” to detect unauthorized tampering with the device or module. Such a monitoring circuit may include a power source such as an in-circuit or in-module battery and a “zeroization” circuit within the chip or package to erase the contents of a memory when the electrically conductive nano-structure is breached or altered. The device may be configured to blow one or more fuses or overcurrent protection devices when the electrically conductive nano-structure is breached or altered.In a further embodiment, one or more electrically conductive nano-structures are used to interconnect and reroute one or more electrical connections between one or more ICs (or dummy leads and vias) to create an “invisible” set of electrical connections on the chip or stack to obfuscate an attempt to reverse engineer the device, i.e., a set of connections that cannot be observed by standard test means such as by X-ray or conventional microscope.
    • 公开了一种器件和方法,其包括限定在微电子电路的一个或多个表面上的一个或多个导电纳米结构,例如集成电路管芯,微电子电路封装(例如TSOP,BGA或其它预封装IC)堆叠微电子 或者在包含一个或多个IC的层叠层中的一个或多个层的表面上。 在一个实施例中,导电纳米结构与监控电路电连接,并用作“跳闸线”,以检测未经授权的篡改设备或模块。 这样的监视电路可以包括诸如电路内或模块内电池的电源和芯片或封装内的“零化”电路,以在导电纳米结构被破坏或改变时擦除存储器的内容物。 该装置可以被配置为当导电纳米结构被破坏或改变时吹送一个或多个保险丝或过电流保护装置。 在另一个实施例中,使用一个或多个导电纳米结构来互连和重新路由一个或多个IC(或虚拟引线和通孔)之间的一个或多个电连接,以在芯片上产生“不可见”的电连接集合,或 堆叠以模糊化设备的反向工程,即通过X射线或常规显微镜的标准测试手段无法观察到的一组连接。
    • 28. 发明授权
    • Auction redemption system and method
    • 拍卖赎回制度和方法
    • US07461022B1
    • 2008-12-02
    • US09422114
    • 1999-10-20
    • Thomas ChurchillJohn Patrick ConnellyEric BoydVenkat PanchapakesanSeth GodinHenry Hyunsuk SohnDavid Conway
    • Thomas ChurchillJohn Patrick ConnellyEric BoydVenkat PanchapakesanSeth GodinHenry Hyunsuk SohnDavid Conway
    • G06Q40/00
    • G06Q30/06G06Q10/02G06Q30/08G06Q40/00G06Q40/04
    • An electronic auction system known as the Yahoo! Auction System provides functionality that permits users to conduct auction transactions with various payment units, such as incentive points and credit points, as well as money. Points can be earned in a variety of ways and redeemed via online auctions. The Yahoo! Auction System includes a web server, a messaging server, a database server, and various databases including an account database for storing information about account balance, expiration date for each point or group of points, and redemption information. The Yahoo! Auction System provides different auction formats, such as Standard Auction, Dutch Auction, Progressive Auction, Buy-or-Bid Auction, and Declining Bid Auction. The Yahoo! Auction System reserves the bid amount associated any new valid bid in the bidder's account and unreserves those bid amounts that were previously reserved but are no longer the winning bid or otherwise displaced from the top bid positions.
    • 被称为雅虎拍卖系统的电子拍卖系统提供了允许用户与各种支付单位进行拍卖交易的功能,例如激励点和信用点以及金钱。 积分可以通过各种方式获得,并通过在线拍卖赎回。 雅虎拍卖系统包括网络服务器,消息传递服务器,数据库服务器以及各种数据库,包括用于存储有关帐户余额的信息的帐户数据库,每个点或一组点的到期日以及兑换信息。 雅虎拍卖系统提供不同的拍卖格式,例如标准拍卖,荷兰拍卖,逐行拍卖,买卖拍卖,以及拒绝拍卖。 雅虎拍卖系统保留与投标人帐户中任何新的有效投标相关的投标金额,并取消保留先前保留但不再是中标或以其他顶级出价位置偏移的投标金额。