DYNAMIC BANDWIDTH CONTROL SCHEME OF A FRAC-N PLL IN A RECEIVER
    61.
    发明申请
    DYNAMIC BANDWIDTH CONTROL SCHEME OF A FRAC-N PLL IN A RECEIVER 有权
    接收机中FRAC-N PLL的动态带宽控制方案

    公开(公告)号:US20110280344A1

    公开(公告)日:2011-11-17

    申请号:US12944521

    申请日:2010-11-11

    IPC分类号: H03D3/24

    摘要: A receiver, in accordance with one embodiment of the present invention, includes a mixer, a filter, a received signal strength indicator, and a control loop. The mixer is adapted to convert the frequency of a received signal. The filter is adapted to filter out undesired noise that may be present in the output signal of the mixer. The received signal strength indicator is adapted to detect blocker (also known as jammer) signals that may be present in the output signal of the low-pass filter and generate a feedback signal in response. The control loop is adapted to vary its bandwidth in response to an output signal of the received signal strength indicator. The control loop supplies an oscillating signal to the mixer.

    摘要翻译: 根据本发明的一个实施例的接收机包括混频器,滤波器,接收信号强度指示器和控制回路。 混频器适于转换接收信号的频率。 滤波器适于滤除可能存在于混频器的输出信号中的不期望的噪声。 所接收的信号强度指示符适于检测可能存在于低通滤波器的输出信号中的阻塞器(也称为干扰信号)信号,并产生响应的反馈信号。 控制回路适于响应于接收信号强度指示器的输出信号来改变其带宽。 控制回路向振荡器提供振荡信号。

    HYBRID RECEIVER ARCHITECTURE USING UPCONVERSION FOLLOWED BY DIRECT DOWNCONVERSION
    62.
    发明申请
    HYBRID RECEIVER ARCHITECTURE USING UPCONVERSION FOLLOWED BY DIRECT DOWNCONVERSION 有权
    混合接收机结构使用直接转发后的UPCRONVERSION

    公开(公告)号:US20100271558A1

    公开(公告)日:2010-10-28

    申请号:US12831225

    申请日:2010-07-06

    IPC分类号: H04N5/44 H04B1/00

    CPC分类号: H04B1/28 H03D7/166

    摘要: A receiver configured to selectively receive an RF signal from an operating band having a plurality of RF channels. The receiver is configured to upconvert the desired RF channel to an intermediate frequency (IF) greater than the RF channel frequencies. The upconverted RF channel is downconverted to baseband or a low IF. The receiver can perform channel selection by filtering the baseband or low IF signal. The baseband or low IF signal can be upconverted to a programmable output IF.

    摘要翻译: 一种被配置为从具有多个RF信道的工作频带有选择地接收RF信号的接收机。 接收机被配置为将期望的RF信道上变频到大于RF信道频率的中频(IF)。 上变频的RF信道被下变频到基带或低IF。 接收机可以通过对基带或低IF信号进行滤波来执行信道选择。 基带或低IF信号可以上变频到可编程输出IF。

    DESIGN MANAGING MEANS, DESIGN TOOL AND METHOD FOR WORK BREAKDOWN STRUCTURE
    63.
    发明申请
    DESIGN MANAGING MEANS, DESIGN TOOL AND METHOD FOR WORK BREAKDOWN STRUCTURE 审中-公开
    设计管理手段,设计工具和工作中断结构的方法

    公开(公告)号:US20060293939A1

    公开(公告)日:2006-12-28

    申请号:US11425421

    申请日:2006-06-21

    IPC分类号: G05B19/418

    摘要: A WBS design managing means in project management, comprising: a WBS tree-like architecture designing means for implementing graphical tree-like design of the work items included in a project and their relations, and mapping them into an enhanced WBS data structure; a WBS attribute editing means for defining and editing attributes of work items at each node of the tree-like architecture; and a WBS data managing means for storing and managing data constructed in accordance with said enhanced WBS data structure. The WBS design managing means may connect to a converter for converting said constructed data into the format required by a project management tool so as to input said structured data to the project management tool. Besides, there is provided an enhanced WBS design tool. The present invention makes the system design tool and project management tool be integrated, so that the system architect and the project management personal have more fluent channel for information exchange under the support of the present invention's tool, improving efficiency and accuracy of project management.

    摘要翻译: WBS设计管理手段,包括:WBS树状架构设计手段,用于实现项目中包含的工作项目的图形树状设计及其关系,并将其映射为增强的WBS数据结构; WBS属性编辑装置,用于在树状架构的每个节点处定义和编辑工作项的属性; 以及用于存储和管理根据所述增强的WBS数据结构构造的数据的WBS数据管理装置。 WBS设计管理装置可以连接到转换器,用于将所述构造的数据转换成项目管理工具所需的格式,以便将所述结构化数据输入到项目管理工具。 此外,还提供了一个增强的WBS设计工具。 本发明使得系统设计工具和项目管理工具得到整合,使得系统架构师和项目管理人员在本发明工具的支持下,有更流畅的信息交流渠道,提高项目管理的效率和准确性。

    Receiver architecture with digitally generated intermediate frequency
    65.
    发明申请
    Receiver architecture with digitally generated intermediate frequency 审中-公开
    具有数字生成中频的接收机架构

    公开(公告)号:US20060083335A1

    公开(公告)日:2006-04-20

    申请号:US11248657

    申请日:2005-10-12

    IPC分类号: H04L27/22

    摘要: A receiver can be configured to include an RF front end that is configured to downconvert a received signal to a baseband signal or a low Intermediate Frequency (IF) signal. The receiver can downconvert the desired signal from an RF frequency in the presence of numerous interference sources to a baseband or low IF signal for filtering and channel selection. The filtered baseband or low IF signal can be converted to a digital representation. The digital representation of the signal can be upconverted in the digital domain to a programmable IF frequency. The digital IF signal can be converted to an analog IF signal that can be processed by legacy hardware.

    摘要翻译: 接收机可以被配置为包括被配置为将接收到的信号下变频为基带信号或低中频(IF)信号的RF前端。 接收机可以在存在多个干扰源的情况下将来自RF频率的期望信号下变频到用于滤波和信道选择的基带或低IF信号。 滤波后的基带或低IF信号可以转换为数字表示。 信号的数字表示可以在数字域中上转换成可编程的中频。 数字IF信号可以转换为可由传统硬件处理的模拟IF信号。

    Isolated DC-DC converters
    66.
    发明申请
    Isolated DC-DC converters 有权
    隔离式DC-DC转换器

    公开(公告)号:US20050024894A1

    公开(公告)日:2005-02-03

    申请号:US10729970

    申请日:2003-12-09

    申请人: Yan-Fei Liu Sheng Ye

    发明人: Yan-Fei Liu Sheng Ye

    IPC分类号: H02M3/28 H02M3/335 H02J1/00

    CPC分类号: H02M3/285 H02M3/33576

    摘要: One DC-DC converter includes primary side circuit between high and low side inputs including first primary winding of first transformer, and auxiliary section; and rectifier circuits, with separate secondary windings of first transformer, and in parallel with one another and output and capacitor; an output capacitor between outputs and across rectifier circuit. Auxiliary causes transfer of power from first primary to first secondary winding and operation without saturation. Another converter includes primary side circuit including primary winding of plurality of transformers, and an auxiliary section; a rectifier circuit having secondary winding of the plurality of transformers, the rectifier circuit in parallel with output and capacitor; an output capacitor between outputs and across rectifier circuit. Auxiliary section includes switches for connecting and disconnecting primary windings from input, and for resetting transformers. Alternatively, auxiliary section includes switches and capacitors. Switches and capacitors in auxiliary section shared between transformers.

    摘要翻译: 一个DC-DC转换器包括高低侧输入之间的初级侧电路,包括第一变压器的第一初级绕组和辅助部分; 和整流电路,具有第一变压器的单独的次级绕组,并且彼此并联并输出和电容器; 输出和整流电路之间的输出电容。 辅助电源从第一次初级到次级绕组转换,无饱和操作。 另一转换器包括:初级侧电路,包括多个变压器的初级绕组和辅助部分; 整流电路具有多个变压器的次级绕组,整流电路与输出和电容并联; 输出和整流电路之间的输出电容。 辅助部分包括用于从输入端连接和断开初级绕组以及用于复位变压器的开关。 或者,辅助部分包括开关和电容器。 变压器共用的辅助部分中的开关和电容器。