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    • 6. 发明申请
    • METHOD FOR HANDING OFF STREAMING MEDIA SESSIONS BETWEEN WIRELESS BASE STATIONS IN A MOBILE STREAMING MEDIA SYSTEM
    • 移动流媒体系统中无线基站之间传播媒体会话的方法
    • WO2003005761A1
    • 2003-01-16
    • PCT/US2002/020566
    • 2002-06-26
    • HEWLETT-PACKARD COMPANY
    • APOSTOLOPOULOS, John G,BASU, SujoyCHEUNG, GeneKUMAR, RajendraROY, SumitTAN, Wai-tanWEE, Susie J,WONG, TinaSHEN, Bo
    • H04Q7/38
    • H04W36/18H04B7/022H04L25/4919H04W36/08
    • A method (1100) for performing a soft-handoff in a mobile streaming media system (701), and a method for performing a hard-handoff in a mobile streaming media system are is disclosed. In the soft-handoff embodiment, the present invention detects that a channel quality between a mobile client (902) and a first base station (904) remains above a drop threshold and that a channel quality between the mobile client and a second base station (906) increases from below to above an add threshold. The present embodiment then sends a first multiple description bitstream (D0) from the first base station to the mobile client and sends a complementary second multiple description bitstream (D1) from the second base station to the mobile client. This method thereby provides improved utilization of wireless bandwidth during soft-handoffs, in contrast to conventional systems where the same bitstream is transmitted from each base station. In both the cases of soft-handoffs and hard-handoffs, when a mobile client enters a cell whose base station has no free capacity, the base station may prevent call dropping by reducing the number of descriptions being served to the existing clients and thereby providing capacity (at least one description) for the new client. These methods provide improved utilization of wireless bandwidth during soft-handoffs, and reduced probability of service disruption during both soft-handoffs and hard-handoffs.
    • 公开了一种用于在移动流媒体系统(701)中执行软切换的方法(1100),以及用于在移动流媒体系统中执行硬切换的方法。 在软切换实施例中,本发明检测到移动客户端(902)和第一基站(904)之间的信道质量保持高于丢弃阈值,并且移动客户端与第二基站之间的信道质量 906)从下面增加到增加阈值以上。 本实施例然后将第一多重描述比特流(D0)从第一基站发送到移动客户端,并将互补的第二多重描述比特流(D1)从第二基站发送到移动客户端。 因此,与从每个基站发送相同比特流的常规系统相比,该方法从而提供了在软切换期间无线带宽的改进的利用。 在软切换和硬切换的情况下,当移动客户端进入其基站没有可用容量的小区时,基站可以通过减少向现有客户端提供的描述的数量来防止呼叫丢弃,从而提供 新客户端的容量(至少一个描述)。 这些方法在软切换期间提供了无线带宽的改进的利用,并且在软切换和硬切换期间降低了服务中断的概率。
    • 7. 发明申请
    • BISTABLE MOLECULAR MECHANICAL DEVICES ACTIVATED BY AN ELECTRIC FIELD FOR ELECTRONIC INK AND OTHER VISUAL DISPLAY APPLICATIONS
    • 用电子激光和其他可视化显示应用激活的双稳态分子机械装置
    • WO2003005116A2
    • 2003-01-16
    • PCT/US2002/020805
    • 2002-06-27
    • HEWLETT-PACKARD COMPANY
    • ZHANG, Xiao-AnWILLIAMS, R., StanleyVINCENT, Kent, D.
    • G02F1/15
    • G11C13/0014B82Y10/00G02B26/026G02F1/15G02F1/174G11C13/02G11C13/04G11C23/00G11C2213/14G11C2213/77
    • An electric field activated bi-stable molecular system (16, 630) configured within an electric field generated by a pair of electrodes (301, 303 or 301, 305 or 403, 405) is provided for use, e.g., as electronic ink (12) or other visual displays. The molecular system (16, 630) has at least one rotor portion (632) connected to at least one stator portion (634), wherein the rotor portion (632) rotates with respect to the stator portion (634) between at least two different states upon application of the electric field, thereby inducing a band gap change in the molecular system (16, 630), wherein in a first state, there is extended conjugation throughout the major portion of the molecular system (16, 630), resulting in a relatively smaller band gap, and wherein in a second state, the extended conjugation is destroyed, resulting in a relatively larger band gap. A primary advantage of the molecular system (16, 630) is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule (16, 630) of the present invention will latch to stabilize one or the other of its color states.
    • 提供配置在由一对电极(301,303或301,305或403,405)产生的电场内的电场激活的双稳态分子系统(16,630)供使用 例如作为电子墨水(12)或其他视觉显示器。 分子系统(16,630)具有连接到至少一个定子部分(634)的至少一个转子部分(632),其中转子部分(632)相对于定子部分(634)在至少两个不同的 在施加电场时施加电场,由此在分子系统(16,630)中诱导带隙变化,其中在第一状态下,遍及分子系统的主要部分(16,630)存在扩展的共轭,导致 相对较小的带隙,并且其中在第二状态下,扩展共轭被破坏,导致相对较大的带隙。 分子系统(16,630)的主要优点是提高了对比度。 因为本发明的着色剂是分子的并因此是有效的单面的,所以不应该有来自着色剂的背面反射或散射。 本发明的第二个优点是提高了分辨率。 最后,本发明的每个分子(16,630)将锁定以稳定其一种或另一种颜色状态。
    • 8. 发明申请
    • ACCESS CONTROL THROUGH SECURE CHANNEL USING PERSONAL IDENTIFICATION SYSTEM
    • 通过使用个人识别系统的安全通道进行访问控制
    • WO2003003315A2
    • 2003-01-09
    • PCT/US2002/020577
    • 2002-06-27
    • HEWLETT-PACKARD COMPANY
    • SEROUSSI, GadielPATERSON, Kenneth G,MAO, WenboSMITH, Mark T,
    • G07C
    • G06F21/35G07C9/00087
    • A security system based on a tamper resistant badge that becomes deactivated if the badge is removed from the person autorized to wear the badge. The badge has a volitile memory for storing the security clearance information associated with the wearer and a processor having sufficient power to perform encrypted communications. The badge also has an attachment sensor that resets the security clearance informtion if the badge is removed from the wearer. A secure data processing system utilizing the badge includes an administrative computer, A, and a client computer, C. Computer A has an identity verification system for authenticating the identity of individuals having badges and loading the clearance information into the volitile memory after the badge is attached to the wearer. The C computers access the information int he badge's volitile memory to provide access to the wereare at the access level specified in the volitile memory.
    • 基于防篡改徽章的安全系统,如果徽章从被自动佩戴徽章的人员中移除,则会被停用。 徽章具有用于存储与佩戴者相关联的安全许可信息的挥发性存储器和具有足够功率以执行加密通信的处理器。 徽章还有一个附件传感器,如果徽章从佩戴者中移除,则会重置安全距离信息。 使用徽章的安全数据处理系统包括管理计算机A和客户端计算机C.计算机A具有用于认证具有徽章的个人的身份的身份验证系统,并且在徽章为 附着在佩戴者身上。 C计算机访问徽章的挥发性内存中的信息,以提供在volitile内存中指定的访问级别的访问。
    • 10. 发明申请
    • STORAGE SYSTEM FOR USE IN CUSTOM LOOP ACCELERATORS AND THE LIKE
    • 用于自定义循环加速器和类似的存储系统
    • WO2002077794A2
    • 2002-10-03
    • PCT/US2002/008815
    • 2002-03-21
    • HEWLETT-PACKARD COMPANY
    • SCHLANSKER, MichaelGUPTA, Shail, A.
    • G06F7/00
    • G06F9/3885G06F9/3001G06F9/30134G06F9/325
    • A computational unit for use in loop computations. The computational unit includes a function unit, a plurality of phase lines, and a storage register. The computational unit is programmed to initiate one iteration of the loop every Π cycles. Each functio n unit has a result output for outputting one computational result each cycle. There is one phase line corresponding to each of the Π cycles. The storage register includes a linear connected array o f shift cells having a first shift cell. Each shift cell has an input port, an output port, a shift control port, and an OR gate. Each shift cell receives the value to be stored in the shift cell on the input port, the stored value being stored in response to a control signal on the shift control port. The OR gate has an output connected to the shift enable port and one input for each cycle on which that shift cell is to receive the control signal, that input being connected to the phase line corresponding to that cycle. The input port of the first shift cell is connected to the result output. A plurality of such computational units can be connected together to form a loop accelerator. The accelerator includes a cross-connect circuit for coupling at least one shift cell output of one of the computational units to an input of a function unit of another of the computational units on a selected one of the Π cycles.
    • 用于循环计算的计算单元。 计算单元包括功能单元,多个相位线以及存储寄存器。 计算单位被编程为每PI循环启动循环的一次迭代。 每个功能单元具有用于每个周期输出一个计算结果的结果输出。 有一个相位线对应于每个PI周期。 存储寄存器包括具有第一移位单元的移位单元的线性连接阵列。 每个移位单元具有输入端口,输出端口,移位控制端口和或门。 每个移位单元接收要存储在输入端口上的移位单元中的值,响应于移位控制端口上的控制信号存储存储的值。 或门具有连接到移位使能端口的输出端和用于接收控制信号的移位单元的每个周期的一个输入,该输入端连接到与该周期对应的相位线。 第一移位单元的输入端口连接到结果输出。 多个这样的计算单元可以连接在一起以形成环路加速器。 加速器包括交叉连接电路,用于将所述计算单元中的一个的至少一个移位单元输出耦合到所选PI循环中的另一计算单元的功能单元的输入。