Process monitor for monitoring and compensating circuit performance
    1.
    发明申请
    Process monitor for monitoring and compensating circuit performance 有权
    用于监控和补偿电路性能的过程监控

    公开(公告)号:US20050062491A1

    公开(公告)日:2005-03-24

    申请号:US10963639

    申请日:2004-10-14

    摘要: A method and system for monitoring and compensating the performance of an operational circuit is provided. The system includes one or more integrated circuit chips and a controller. Each integrated circuit chip includes one or more operational circuits, each operational circuit having at least one controllable circuit parameter. Each integrated circuit chip also includes a process monitor module at least partially constructed thereon. The controller is coupled to each process monitor module and to each operational circuit. The controller includes logic for evaluating the performance of an operational circuit based on data obtained from process monitor module and operational circuit related data stored in a memory. Based on the evaluation, the controller determines whether any deviations from desired or optimal performance of the circuit exist. If deviations exist, the controller generates a control signal to initiate adjustments to the operational circuit to compensate for the deviations.

    摘要翻译: 提供了一种用于监测和补偿操作电路的性能的方法和系统。 该系统包括一个或多个集成电路芯片和控制器。 每个集成电路芯片包括一个或多个操作电路,每个操作电路具有至少一个可控电路参数。 每个集成电路芯片还包括至少部分地构建在其上的过程监控模块。 控制器耦合到每个过程监控模块和每个操作电路。 控制器包括用于基于从存储在存储器中的过程监视模块和操作电路相关数据获得的数据来评估操作电路的性能的逻辑。 基于评估,控制器确定是否存在与电路的期望或最佳性能的任何偏差。 如果存在偏差,则控制器产生控制信号以启动对运算电路的调整以补偿偏差。

    Integrated set-top box
    2.
    发明申请
    Integrated set-top box 有权
    集成机顶盒

    公开(公告)号:US20060026661A1

    公开(公告)日:2006-02-02

    申请号:US11133237

    申请日:2005-05-20

    IPC分类号: H04N7/173

    摘要: The present invention is an integrated set-top box. In one embodiment, the up-stream path and the down-stream path are integrated on a common semiconductor substrate. The down-stream path can include a TV tuner and a digital receiver portion that is integrated on the common semiconductor substrate with a power amplifier of the up-stream path. In another embodiment, the TV tuner is implemented on a first semiconductor substrate and the digital receiver portion and the power amplifier are configured on a second semiconductor substrate. However, the two substrates are mounted on a common carrier so that the set-top box appears to be a single chip configuration to the user.

    摘要翻译: 本发明是一种集成的机顶盒。 在一个实施例中,上游路径和下游路径被集成在公共半导体衬底上。 下行路径可以包括集成在公共半导体衬底上的TV调谐器和数字接收器部分,其具有上行路径的功率放大器。 在另一个实施例中,TV调谐器被实现在第一半导体衬底上,并且数字接收器部分和功率放大器配置在第二半导体衬底上。 然而,两个基板安装在公共载体上,使得机顶盒看起来是用户的单芯片配置。

    Low noise variable gain amplifier
    4.
    发明申请
    Low noise variable gain amplifier 失效
    低噪声可变增益放大器

    公开(公告)号:US20060164162A1

    公开(公告)日:2006-07-27

    申请号:US11321650

    申请日:2005-12-30

    IPC分类号: H03G3/20

    CPC分类号: H03G3/3036

    摘要: The present invention provides systems and methods for asymmetrically varying gain in a low noise amplifier. The amplifier includes a first stage amplifier, a plurality of second stage amplifiers coupled to the first stage amplifier, a comparator coupled to one of the second stage amplifiers, and a controller coupled to the comparator, the first stage amplifier, and the plurality of second stage amplifiers. The controller is configured to produce one or more gain control signals to change the gain of one of the first stage amplifier or the plurality of second stage amplifiers at a plurality of asymmetric rates so as to cause the power of the output signal to move toward one of the threshold values of the comparator. The rate of change of the gain is based on conditions including the gain of the first stage amplifier, gain of a second stage amplifier, and the sampled power level.

    摘要翻译: 本发明提供了用于在低噪声放大器中不对称地改变增益的系统和方法。 放大器包括第一级放大器,耦合到第一级放大器的多个第二级放大器,耦合到第二级放大器之一的比较器以及耦合到比较器,第一级放大器和多个第二级放大器的控制器 舞台放大器。 控制器被配置为产生一个或多个增益控制信号,以多个非对称速率改变第一级放大器或多个第二级放大器之一的增益,以便使输出信号的功率向一个 的比较器的阈值。 增益的变化率基于包括第一级放大器的增益,第二级放大器的增益和采样功率电平的条件。

    Multi-tuner variable low IF receiver for multi-channel applications
    6.
    发明授权
    Multi-tuner variable low IF receiver for multi-channel applications 有权
    用于多通道应用的多调谐器可变低IF接收器

    公开(公告)号:US08107916B2

    公开(公告)日:2012-01-31

    申请号:US12553701

    申请日:2009-09-03

    IPC分类号: H04B1/10 H04K3/00

    摘要: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.

    摘要翻译: 提供了用于解调包含在射频(RF)输入信号的频带限制部分内的多个连续信道的系统和方法。 在一个实施例中,RF输入信号的频带限制部分被下变频为基带。 在下转换之后,频带限制部分与带限制部分的镜像重叠在基带处。 下变频信号内的多个相邻信道类似地在基带处重叠,并且随后占据基本上等于下变频所需的一半的带宽。 在数字域中进行图像抑制以恢复多个重叠信道中的每一个。

    Integrated Set-Top Box with Daisy-Chaining
    7.
    发明申请
    Integrated Set-Top Box with Daisy-Chaining 审中-公开
    带菊花链的集成机顶盒

    公开(公告)号:US20100306814A1

    公开(公告)日:2010-12-02

    申请号:US12504541

    申请日:2009-07-16

    IPC分类号: H04N7/173

    CPC分类号: H04N5/44

    摘要: The present invention is an integrated set-top box having daisy-chaining capability. The set-top box includes a down-stream path having a tuner and a digital receiver portion and an up-stream path having a power amplifier. In one embodiment, the tuner, digital receiver, and power amplifier can all be disposed on a common substrate. In another embodiment, the tuner can be disposed on a first substrate, and the digital receiver and the power amplifier can be disposed on a second substrate. The set-top box includes a daisy-chain buffer having an input coupled to an input of the tuner and having an output coupled to an input of another receiving entity such as another set-top box, tuner, cable, etc., where the daisy-chain buffer is configured to provide a signal to drive the receiving entity.

    摘要翻译: 本发明是具有菊花链接能力的集成机顶盒。 机顶盒包括具有调谐器和数字接收机部分的下行路径以及具有功率放大器的上行路径。 在一个实施例中,调谐器,数字接收机和功率放大器都可以设置在公共基板上。 在另一个实施例中,调谐器可以设置在第一基板上,并且数字接收器和功率放大器可以设置在第二基板上。 机顶盒包括菊花链缓冲器,其具有耦合到调谐器的输入的输入,并且具有耦合到诸如另一个机顶盒,调谐器,电缆等的另一个接收实体的输入的输出,其中 菊花链缓冲器被配置为提供信号来驱动接收实体。

    Variable Low IF Receiver for Multi-Channel Applications
    8.
    发明申请
    Variable Low IF Receiver for Multi-Channel Applications 有权
    用于多通道应用的可变低中频接收器

    公开(公告)号:US20100067630A1

    公开(公告)日:2010-03-18

    申请号:US12553687

    申请日:2009-09-03

    IPC分类号: H04B1/10

    摘要: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.

    摘要翻译: 提供了用于解调包含在射频(RF)输入信号的频带限制部分内的多个连续信道的系统和方法。 在一个实施例中,RF输入信号的频带限制部分被下变频为基带。 在下转换之后,频带限制部分与带限制部分的镜像重叠在基带处。 下变频信号内的多个相邻信道类似地在基带处重叠,并且随后占据基本上等于下变频所需的一半的带宽。 在数字域中进行图像抑制以恢复多个重叠信道中的每一个。

    Multi-Tuner Variable Low IF Receiver for Multi-Channel Applications
    9.
    发明申请
    Multi-Tuner Variable Low IF Receiver for Multi-Channel Applications 有权
    用于多通道应用的多调谐器可变低中频接收器

    公开(公告)号:US20100066917A1

    公开(公告)日:2010-03-18

    申请号:US12553701

    申请日:2009-09-03

    IPC分类号: H04N5/50 H04B1/26

    摘要: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.

    摘要翻译: 提供了用于解调包含在射频(RF)输入信号的频带限制部分内的多个连续信道的系统和方法。 在一个实施例中,RF输入信号的频带限制部分被下变频为基带。 在下转换之后,频带限制部分与带限制部分的镜像重叠在基带处。 下变频信号内的多个相邻信道类似地在基带处重叠,并且随后占据基本上等于下变频所需的一半的带宽。 在数字域中进行图像抑制以恢复多个重叠信道中的每一个。

    Varactor folding technique for phase noise reduction in electronic oscillators
    10.
    发明申请
    Varactor folding technique for phase noise reduction in electronic oscillators 有权
    用于电子振荡器相位降噪的变容二极管折叠技术

    公开(公告)号:US20050083143A1

    公开(公告)日:2005-04-21

    申请号:US10965027

    申请日:2004-10-15

    IPC分类号: H03B5/12 H03L7/00

    摘要: A varactor folding technique reduces noise in controllable electronic oscillators through the use of a series of varactors having relatively small capacitance. A folding circuit provides control signals to the varactors in a sequential manner to provide a relatively smooth change in the total capacitance of the oscillator. Consequently, effective control of the oscillator is achieved with accompanying reductions in oscillator noise such as flicker noise.

    摘要翻译: 变容二极管折叠技术通过使用具有相对较小电容的一系列变容二极管来降低可控电子振荡器中的噪声。 折叠电路以顺序方式向变容二极管提供控制信号,以提供振荡器的总电容的相对平滑的变化。 因此,随着振荡器噪声(如闪烁噪声)的减少,实现了振荡器的有效控制。