Digital receiver with tunable analog parameters and method therefor
    1.
    发明授权
    Digital receiver with tunable analog parameters and method therefor 失效
    具有可调谐模拟参数的数字接收机及其方法

    公开(公告)号:US5721756A

    公开(公告)日:1998-02-24

    申请号:US620671

    申请日:1996-03-26

    IPC分类号: H04L1/20 H04L27/22 H04L27/06

    CPC分类号: H04L1/208 H04L1/20 H04L27/22

    摘要: A digital data receiver includes tunable analog components having variable parameters that are responsive to the bit error rate (BER) of the decoded digital data. The analog components include a quadrature generator having a tunable phase shifter, an analog filter having a tunable bandwidth, a tunable magnitude equalizer circuit, a tunable group delay equalizer circuit, and an amplifier having an adjustable gain. The tunable components are controlled by tuning control signals that incorporate digitally-produced fine tuning signals. The digital tuning signals are altered in accordance with realtime changes in the BER.

    摘要翻译: 数字数据接收机包括具有可变参数的可调模拟分量,该参数响应于解码的数字数据的误码率(BER)。 模拟部件包括具有可调谐移相器的正交发生器,具有可调谐带宽的模拟滤波器,可调幅度均衡器电路,可调组延迟均衡器电路和具有可调节增益的放大器。 通过调谐控制信号控制可调组件,该控制信号包含数字产生的微调信号。 数字调谐信号根据BER的实时变化而改变。

    Automated Assembly Device to Tolerate Blade Variation
    4.
    发明申请
    Automated Assembly Device to Tolerate Blade Variation 有权
    自动组装装置,以承受刀片变化

    公开(公告)号:US20090248052A1

    公开(公告)日:2009-10-01

    申请号:US12414346

    申请日:2009-03-30

    IPC分类号: A61B17/32 B23P19/04 B23P11/00

    摘要: An automated device facilitates the assembly a surgical instrument that includes a knife with a high aspect ratio. The automated device includes a fixture for restraining a subassembly of the surgical instrument that includes the knife. A blade grip on the device is movable relative to the fixture, and is configured to urge the knife into a restrained position in the subassembly suitable for the subsequent assembly of an additional instrument component. A grip actuator is provided to move the blade grip.

    摘要翻译: 自动化装置便于组装包括具有高纵横比的刀的外科器械。 自动装置包括用于限制包括刀的外科器械的子组件的夹具。 装置上的刀片抓握件可相对于固定装置移动,并且构造成推动刀具进入适于随后组装另外的仪器部件的子组件中的限制位置。 提供夹持致动器以移动刀片柄。

    Stand-by power supply
    6.
    发明授权
    Stand-by power supply 失效
    备用电源

    公开(公告)号:US4965462A

    公开(公告)日:1990-10-23

    申请号:US90935

    申请日:1987-08-31

    申请人: James J. Crawford

    发明人: James J. Crawford

    IPC分类号: H02J9/06

    摘要: A stand-by power supply for preventing interruption of power to a communication unit, has a first connector for electrically connecting to the unit, a second connector for electrically connecting to and disconnecting from a main battery, an auxiliary battery, and a circuit electrically connected to the first and second connectors and the auxiliary battery for applying the main battery across the load, and responsive to the disconnecting of the main battery from the second connector to apply the auxiliary battery across the first connector.

    摘要翻译: 一种用于防止对通信单元的电力中断的备用电源具有用于电连接到该单元的第一连接器,用于电连接到主电池,辅助电池和电连接的电路的第二连接器 连接到第一和第二连接器以及辅助电池,用于在负载上施加主电池,并且响应于主电池与第二连接器的断开连接,以将辅助电池施加在第一连接器上。

    Multi-rate branch metric processor for maximum-likelihood convolutional
decoder
    8.
    发明授权
    Multi-rate branch metric processor for maximum-likelihood convolutional decoder 失效
    用于最大似然卷积解码器的多速率分支度量处理器

    公开(公告)号:US4500994A

    公开(公告)日:1985-02-19

    申请号:US432489

    申请日:1982-10-04

    IPC分类号: H03M13/41 G06F11/12

    CPC分类号: H03M13/41

    摘要: A branch metric processor for use in a maximum-likelihood convolutional decoder accepts a set of soft-decision symbols, an indicator of a level of quantization thereof and a set of erase control signals and generates branch metrics for base code rates of 1/3 and 1/2. The apparatus represents a substantial reduction in complexity over prior art devices. Erasure of selected symbols allows the processor to generate branch metrics for higher code rates and is advantageous in very low code rate applications.

    摘要翻译: 用于最大似然卷积解码器的分支度量处理器接受一组软判决符号,其量化级别的指示符和一组擦除控制信号,并产生用于基本码率为1/3的分支度量, 1/2。 该装置代表了现有技术装置的复杂性的显着降低。 擦除所选择的符号允许处理器产生用于更高码率的分支度量,并且在非常低的码率应用中是有利的。