Crosspoint switch with reduced power consumption
    1.
    发明授权
    Crosspoint switch with reduced power consumption 失效
    交叉点开关,降低功耗

    公开(公告)号:US06737958B1

    公开(公告)日:2004-05-18

    申请号:US09714706

    申请日:2000-11-16

    IPC分类号: H03K17693

    CPC分类号: H03K17/6228 H03K17/6235

    摘要: A crosspoint switch architecture implements high-speed packet switches and incorporates a power-saving bias control circuit with each switch cell. Each switch cell is equipped with two memory cells and a bias control circuit. Power savings are obtained by controlling the bias current of the switch cell as a function of the switch state. Although the additional circuitry accompanying each switch cell adds complexity and a minimal additional power consumption, the power saving realized in the switch cell results in a crosspoint switch with much lower power consumption as compared to existing architectures. The presence of two bits of memory for each switch core allows for fast reconfiguration. The result is an overall power savings and lower cost design.

    摘要翻译: 交叉点交换架构实现高速分组交换,并且与每个交换机单元并入节能偏置控制电路。 每个开关单元配备有两个存储单元和偏置控制电路。 通过控制开关单元的偏置电流作为开关状态的函数来获得功率节省。 虽然伴随每个开关单元的附加电路增加了复杂性和最小的附加功耗,但与现有架构相比,在开关单元中实现的功率节省导致交叉点开关具有低得多的功耗。 每个交换机内核存在两位内存,可以快速重新配置。 其结果是整体节电和降低成本设计。

    System for improving the quality of television pictures using rule based
dynamic control
    3.
    发明授权
    System for improving the quality of television pictures using rule based dynamic control 失效
    使用基于规则的动态控制提高电视图像质量的系统

    公开(公告)号:US5327228A

    公开(公告)日:1994-07-05

    申请号:US922309

    申请日:1992-07-30

    IPC分类号: H04N9/64

    CPC分类号: H04N9/646

    摘要: A system and method for automatically improving the picture quality of television or other video based images, based upon picture content, using improved rule based picture analysis and compensation techniques. The distribution of facial and non-facial tones in a television picture are determined and used to control of picture color quality using neural network techniques. A preferred embodiment of the invention adjusts the brightness, contrast and color saturation of a displayed picture based upon selected portions of the received picture signal. These controls are adjusted every 1/60th of a second (i.e. at the end of each field) to provide an improved visual display. Analysis of the video signal in one field of a frame provides the information for adjusting the picture quality of the subsequent field of that frame.

    摘要翻译: 一种基于图像内容,使用改进的基于规则的图像分析和补偿技术来自动提高电视或其他基于视频的图像的图像质量的系统和方法。 确定电视图像中面部和非面部色调的分布,并用于使用神经网络技术来控制图像色彩质量。 本发明的优选实施例基于所接收的图像信号的选定部分来调整显示图像的亮度,对比度和色彩饱和度。 这些控制每1/60秒调整一次(即每个场的末尾),以提供改进的视觉显示。 对帧的一个场中的视频信号的分析提供了用于调整该帧的后续字段的画面质量的信息。

    Method for installing a wireless network which transmits node addresses
directly from a wireless installation device to the nodes without using
the wireless network

    公开(公告)号:US5909429A

    公开(公告)日:1999-06-01

    申请号:US707274

    申请日:1996-09-03

    摘要: A method for installing a wireless network, which includes the steps of physically installing a plurality of nodes in respective different locations in a building, connecting the nodes to a power supply and powering up the nodes, using a wireless installation device to program a respective address into the nodes, using the wireless installation device to program one or more default settings into the nodes, using the wireless installation device to verify operation of the nodes, and, using the wireless installation device to dump at least information regarding the physical location and associated address of the nodes to a building computer. In a presently preferred embodiment, the wireless installation device is preferably an RF portable computer which has an RF transmitter which has a variable power setting, and an RF receiver which also has a variable power setting. During installation of each node, the RF portable computer assigns a unique address to that node, and then loads the assigned address and all appropriate default settings into that node. The address data and default settings are preferably stored in nonvolatile memory provided in each node. The wireless programming of the nodes is preferably accomplished using a software "handshaking" procedure which ensures that the address and default setting data is only loaded into the node currently being programmed, and not inadvertently into one or more other nearby nodes. In this connection, an iterative power reduction scheme can be utilized to prevent multiple nodes from being inadvertently assigned the same address. Also disclosed is a method for installing one or more nodes in an existing wireless network, which method is performed in essentially the same manner as that described above in connection with the original installation of the wireless network itself, with the exception being that instead of an entire network of nodes being installed, only one or more nodes are installed in a pre-existing wireless network.

    Method and apparatus for low quantity detection of bioparticles in small sample volumes
    6.
    发明授权
    Method and apparatus for low quantity detection of bioparticles in small sample volumes 失效
    小样本体积中生物颗粒检测低量的方法和装置

    公开(公告)号:US07615762B2

    公开(公告)日:2009-11-10

    申请号:US11292604

    申请日:2005-12-02

    IPC分类号: G01N21/64

    摘要: A novel apparatus and method is described for detection of very small quantities (a few hundred molecules) of bioparticles in nanoliter/picoliter quantities of a sample. The apparatus involves a very small and low cost apparatus that contains a fluorometer. The detection process uses the fluorescence of nanoparticles. Dielectrophoresis is used to concentrate, mix and position the target particles with regard to the light sensor such that maximum detection efficiency is achieved. This allows low cost implementation of low cost point of care tests for disease (animal and plant), infection, food-borne bacteria detection, nucleotide sequencing and pathogen detection (bioterrorism) in real world applications.

    摘要翻译: 描述了一种新颖的装置和方法,用于在纳升/皮升量的样品中检测非常少量(几百分子)的生物颗粒。 该装置涉及包含荧光计的非常小且成本低的装置。 检测过程使用纳米颗粒的荧光。 介电电泳用于相对于光传感器浓缩,混合和定位目标颗粒,从而实现最大的检测效率。 这允许在现实世界应用中低成本实施疾病(动物和植物),感染,食源性细菌检测,核苷酸测序和病原体检测(生物恐怖主义)的低成本点护理测试。

    Method of biasing an MOS IC to operate at the zero temperature
coefficient point
    7.
    发明授权
    Method of biasing an MOS IC to operate at the zero temperature coefficient point 失效
    偏置MOS IC以在零温度系数点工作的方法

    公开(公告)号:US5977832A

    公开(公告)日:1999-11-02

    申请号:US993135

    申请日:1997-12-18

    IPC分类号: H03F1/30 H03K19/003

    CPC分类号: H03F1/301 H03K19/00384

    摘要: A method of biasing an MOS IC includes the steps of providing the IC with two MOS transistors having substantially similar characteristics and maintaining these two transistors at different temperatures. During operation of the IC, an output voltage is generated from each of the two transistors, and a bias voltage is generated as a function of the difference between the two output voltages. This bias voltage is then fed back to the gate terminals of the two MOS transistors to set the bias voltage to a steady-state level at which the circuit will operate at a zero temperature coefficient point. This bias voltage is also coupled to the gate electrodes of other transistors within the IC, to operate these transistors at the zero temperature coefficient point. An IC operated in accordance with biasing method will exhibit superior stability with variations in ambient temperature.

    摘要翻译: 偏置MOS IC的方法包括以下步骤:为IC提供具有基本相似特性的两个MOS晶体管,并将这两个晶体管保持在不同的温度。 在IC的工作期间,从两个晶体管中的每一个产生输出电压,并且产生作为两个输出电压之间的差的函数的偏置电压。 然后将该偏置电压反馈到两个MOS晶体管的栅极端子,以将偏置电压设置到电路将在零温度系数点运行的稳态电平。 该偏置电压也耦合到IC内的其它晶体管的栅电极,以在零温度系数点操作这些晶体管。 根据偏置方式运行的IC将显示出优异的环境温度变化的稳定性。

    Packet hopping system with sliding frequency, and transciever for the
system
    8.
    发明授权
    Packet hopping system with sliding frequency, and transciever for the system 失效
    具有滑动频率的跳频系统,以及用于系统的转换器

    公开(公告)号:US5898733A

    公开(公告)日:1999-04-27

    申请号:US498286

    申请日:1995-06-30

    IPC分类号: H04B1/40 H04L12/56 H04B1/713

    CPC分类号: H04L45/00 H04L45/48

    摘要: Packets of data are transmitted over a distributed communications network formed by a number of transceivers. To minimize interference by other signals, the carrier frequency of each transmission is varied compared with the last transmission by that transceiver, for example by using a linearly sliding carrier frequency which varies continuously during periods of inactivity and while transmitting. The receivers scan the band at a rate sufficient to detect a preamble carrier burst preceding each data packet. The transceivers operate asynchronously with low data rate FSK signals, using carrier frequencies between 900 and 950 MHz.

    摘要翻译: 数据包通过由多个收发器形成的分布式通信网络传输。 为了最小化其他信号的干扰,例如通过使用在不活动期间和发送期间连续变化的线性滑动载波频率,每个传输的载波频率与该收发器的最后传输相比变化。 接收机以足以检测每个数据分组之前的前导码载波突发的速率扫描频带。 收发器与低数据速率FSK信号异步运行,使用900和950 MHz之间的载波频率。