利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.033 秒)

    Transceiver having multiple signal processing modes of operation
    3.
    发明申请
    Transceiver having multiple signal processing modes of operation 有权
    收发器具有多种信号处理操作模式

    公开(公告)号：US20080049817A1

    公开(公告)日：2008-02-28

    申请号：US11824568

    申请日：2007-06-29

    申请人： Lawrence Der ,  George Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

    发明人： Lawrence Der ,  George Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

    IPC分类号： H04B1/38

    CPC分类号： H04B1/40 ,  H03M3/398 ,  H03M3/40 ,  H03M3/448 ,  H03M3/452 ,  H03M3/50

    摘要： A transceiver includes a processor, which is adapted to in a transmit mode of the transceiver, form at least part of a transmitter and in a receive mode of the transceiver, form at least part of a receiver. The transceiver may include at least one analog-to-digital converter to provide digital signals to the processor in both the transmit and receive modes of operation; and the transceiver may include at least one digital-to-analog converter to receive digital signals from the processor in the transmit and receive modes of operation. The processor may be fabricated on an integrated circuit with at least one of the analog-to-digital converters and/or with at least one of the digital-to-analog converters.

    摘要翻译： 收发器包括适于处于收发器的发射模式的处理器，形成发射器的至少一部分并且在收发器的接收模式中形成接收器的至少一部分。 收发器可以包括至少一个模拟 - 数字转换器，以在发送和接收操作模式中向处理器提供数字信号; 并且收发器可以包括至少一个数模转换器，以在发送和接收操作模式中从处理器接收数字信号。 处理器可以在与至少一个模数转换器和/或至少一个数模转换器的集成电路上制造。

    Method and system for dynamic supply voltage biasing of integrated circuit blocks
    5.
    发明申请
    Method and system for dynamic supply voltage biasing of integrated circuit blocks 审中-公开
    集成电路块的动态电源电压偏置方法和系统

    公开(公告)号：US20080150614A1

    公开(公告)日：2008-06-26

    申请号：US11642335

    申请日：2006-12-20

    申请人： Peter Vancorenland ,  Lawrence Der ,  Scott D. Willingham

    发明人： Peter Vancorenland ,  Lawrence Der ,  Scott D. Willingham

    IPC分类号： G05F3/02

    CPC分类号： G05F3/24

    摘要： A system and method are disclosed for using dynamic supply voltages to bias circuit blocks within integrated circuits. By considering current requirements for circuit blocks based upon process variations and environmental conditions, a dynamic supply voltage can be used such that operational integrity can be maintained while reducing power consumption. By using a dynamic supply voltage, circuit blocks can be operated at a desired speed while still reducing the power required for this operation. To implement this dynamic supply regulation, circuit elements are provided within a variable supply voltage circuit that cause the dynamic supply voltage to vary based upon operational parameters such as process variations and environment parameters. As such, circuit blocks can be provided a supply voltage high enough to allow operational integrity at required speeds but not so high as to waste power by unnecessarily increasing current consumption.

    摘要翻译： 公开了一种使用动态电源电压来偏置集成电路内的电路块的系统和方法。 通过考虑基于工艺变化和环境条件的电路块的当前要求，可以使用动态电源电压，从而可以在降低功耗的同时保持操作完整性。 通过使用动态电源电压，可以以期望的速度操作电路块，同时仍然减少该操作所需的功率。 为了实现这种动态电源调节，电路元件被提供在可变电源电压电路内，使得动态电源电压基于诸如工艺变化和环境参数的操作参数而变化。 因此，电路块可以被提供足够高的电源电压以允许在所需速度下的操作完整性，但不高于通过不必要地增加电流消耗来浪费功率。

    Low drop-out voltage regulator having high ripple rejection and low power consumption
    6.
    发明授权
    Low drop-out voltage regulator having high ripple rejection and low power consumption 失效
    具有高纹波抑制和低功耗的低压差稳压器

    公开(公告)号：US5672959A

    公开(公告)日：1997-09-30

    申请号：US631403

    申请日：1996-04-12

    申请人： Lawrence Der

    发明人： Lawrence Der

    IPC分类号： G05F3/24 ,  H02M3/337

    CPC分类号： G05F3/247

    摘要： A low drop-out regulator circuit that has high ripple rejection and low power consumption. A first local feedback loop is a high-speed, high-bandwidth loop that actively rejects noise from the input source to the regulator. A second feedback loop, having lower speed and a correspondingly lower bandwidth than the first feedback loop, regulates the output voltage. Each feedback loop is separately optimized for its respective bandwidth requirements and, therefore, the regulator is highly efficient. The first feedback loop comprises an amplifier and a pair of PMOS transistors configured as a current mirror with current gain. The first feedback loop generates a first current for charging an output capacitor. Feedback ensures that the first current is proportional to a second current generated by the second feedback loop while rejecting noise from the input source. The second feedback loop comprises a transconductance amplifier that controls the second current with feedback such that the first current charges the output capacitor to the desired output voltage level. The second loop has a lower bandwidth than the first loop because the bandwidth of the second feedback loop is dominated by a relatively large output capacitance and compensation capacitance, while the bandwidth of the first feedback loop is dominated by the relatively small gate capacitances of the pair of transistors and a relatively small compensation capacitance.

    摘要翻译： 具有高纹波抑制和低功耗的低压差稳压电路。 第一个本地反馈环路是高速，高带宽环路，可以积极地将输入源的噪声抑制到稳压器。 具有比第一反馈回路低的速度和相应较低的带宽的第二反馈回路调节输出电压。 每个反馈回路针对其各自的带宽要求进行单独优化，因此，调节器是高效的。 第一反馈回路包括放大器和配置为具有电流增益的电流镜的一对PMOS晶体管。 第一反馈环路产生用于对输出电容器充电的第一电流。 反馈确保第一电流与由第二反馈回路产生的第二电流成比例，同时抑制来自输入源的噪声。 第二反馈环路包括跨导放大器，其通过反馈来控制第二电流，使得第一电流将输出电容器充电到期望的输出电压电平。 第二个回路具有比第一个回路更低的带宽，因为第二个反馈回路的带宽由较大的输出电容和补偿电容支配，而第一个反馈回路的带宽则由该对的较小的栅极电容 的晶体管和相对较小的补偿电容。

    System and method for selecting channels for short range transmissions to broadcast receivers
    7.
    发明申请
    System and method for selecting channels for short range transmissions to broadcast receivers 有权
    选择用于短距离传输到广播接收机的信道的系统和方法

    公开(公告)号：US20080076352A1

    公开(公告)日：2008-03-27

    申请号：US11526433

    申请日：2006-09-25

    申请人： Lawrence Der

    发明人： Lawrence Der

    IPC分类号： H04H1/00 ,  H04B7/00

    CPC分类号： H04B1/034 ,  H04B17/23

    摘要： Methods and systems for determining transmission channels for short range transmissions are disclosed. A transmitter provides short range transmission to a broadcast receiver configured to receive and tune channels within a signal spectrum. Channels within the broadcast signal spectrum are scanned, and an indication of received signal strength is obtained for each channel. The received signal strength indication (RSSI) can then be compared to a threshold power level that correlates to a signal level that the transmitter will be capable of overpowering based upon the transmission power of the transmitter. The scan results in an indication of one or more channels that have received signal strengths below the threshold power level of the transmitter.

    摘要翻译： 公开了用于确定短距离传输的传输信道的方法和系统。 发射机向配置成接收和调谐信号频谱内的信道的广播接收机提供短程传输。 对广播信号频谱内的频道进行扫描，并获得每个频道的接收信号强度指示。 接收的信号强度指示（RSSI）然后可以与与发射机能够基于发射机的发射功率进行超能力的信号电平相关的阈值功率电平进行比较。 扫描导致已经接收到低于发射机的阈值功率电平的信号强度的一个或多个信道的指示。

    Transmitter architecture
    8.
    发明申请
    Transmitter architecture 审中-公开
    发射机架构

    公开(公告)号：US20070238421A1

    公开(公告)日：2007-10-11

    申请号：US11394716

    申请日：2006-03-31

    申请人： Aslamali Rafi ,  George Tuttle ,  Lawrence Der

    发明人： Aslamali Rafi ,  George Tuttle ,  Lawrence Der

    IPC分类号： H04B1/04 ,  H01Q11/12

    CPC分类号： H03C3/40

    摘要： A technique includes digitally generating orthogonal modulated signals, each of which has spectral energy that is generally centered at an intermediate frequency. The orthogonal modulated signals are frequency translated to produce translated signals, each of which has spectral energy that is generally centered about a second frequency that is higher than the intermediate frequency. The translated signals are combined to generate a modulated signal.

    摘要翻译： 一种技术包括数字生成正交调制信号，每个信号具有通常以中间频率为中心的频谱能量。 正交调制信号被频率转换以产生转换的信号，每个信号具有通常以高于中频的第二频率为中心的频谱能量。 经翻译的信号被组合以产生调制信号。

    Controlling fine frequency changes in an oscillator
    9.
    发明授权
    Controlling fine frequency changes in an oscillator 有权
    控制振荡器的精细频率变化

    公开(公告)号：US07587184B2

    公开(公告)日：2009-09-08

    申请号：US11259910

    申请日：2005-10-27

    申请人： Lawrence Der ,  Dana Taipale ,  Scott Willingham

    发明人： Lawrence Der ,  Dana Taipale ,  Scott Willingham

    IPC分类号： H04B1/18

    CPC分类号： H03B5/32 ,  H03B2201/025 ,  H03D7/165 ,  H03J1/0008 ,  H03J2200/10

    摘要： In one embodiment, the present invention includes a method for determining if a frequency control instruction would cause a first capacitor bank to reach a limit and adjusting the first capacitor bank in a first direction using a calibration value and adjusting a second capacitor bank in a second direction if the first capacitor bank would reach the limit. Furthermore, the calibration value may be calculated and stored in accordance with other embodiments. In such manner, small changes in capacitance and correspondingly small changes in frequency may be effected.

    摘要翻译： 在一个实施例中，本发明包括一种用于确定频率控制指令是否会使第一电容器组达到限制并且使用校准值在第一方向上调整第一电容器组并在第二电容器组中调整第二电容器组的方法 方向如果第一个电容器组达到极限。 此外，可以根据其他实施例来计算和存储校准值。 以这种方式，可以实现电容的小的变化和相应的小的频率变化。

    Controlling fine frequency changes in an oscillator
    10.
    发明申请
    Controlling fine frequency changes in an oscillator 有权
    控制振荡器的精细频率变化

    公开(公告)号：US20070001823A1

    公开(公告)日：2007-01-04

    申请号：US11259910

    申请日：2005-10-27

    申请人： Lawrence Der ,  Dana Taipale ,  Scott Willingham

    发明人： Lawrence Der ,  Dana Taipale ,  Scott Willingham

    IPC分类号： G08B3/00

    CPC分类号： H03B5/32 ,  H03B2201/025 ,  H03D7/165 ,  H03J1/0008 ,  H03J2200/10

    摘要： In one embodiment, the present invention includes a method for determining if a frequency control instruction would cause a first capacitor bank to reach a limit and adjusting the first capacitor bank in a first direction using a calibration value and adjusting a second capacitor bank in a second direction if the first capacitor bank would reach the limit. Furthermore, the calibration value may be calculated and stored in accordance with other embodiments. In such manner, small changes in capacitance and correspondingly small changes in frequency may be effected.

    摘要翻译： 在一个实施例中，本发明包括一种用于确定频率控制指令是否会使第一电容器组达到限制并且使用校准值在第一方向上调整第一电容器组并在第二电容器组中调整第二电容器组的方法 方向如果第一个电容器组达到极限。 此外，可以根据其他实施例来计算和存储校准值。 以这种方式，可以实现电容的小的变化和相应的小的频率变化。