Switching video streams for a display without a visible interruption
    22.
    发明授权
    Switching video streams for a display without a visible interruption 有权
    切换显示器的视频流,而不会有明显的中断

    公开(公告)号:US08730251B2

    公开(公告)日:2014-05-20

    申请号:US12795468

    申请日:2010-06-07

    IPC分类号: G09G5/39 G09G5/399 G09G5/36

    CPC分类号: G09G5/399 G09G5/395

    摘要: The disclosed embodiments provide a system that facilitates driving a display in a computer system. During operation, the system receives an input video stream from a graphics source. The system directs the input video stream through a front memory buffer and a back memory buffer to produce an output video stream. While directing the input video stream through the set of memory buffers, the system writes a video frame from the input video stream into the back buffer, and concurrently drives the output video stream from a preceding video frame in the front buffer. When the writing of the video frame completes, the system switches buffers so that the back buffer becomes the front buffer, which drives the output video stream, and the front buffer becomes either a spare buffer or the back buffer, which receives a subsequent frame from the input video stream.

    摘要翻译: 所公开的实施例提供了有助于驱动计算机系统中的显示器的系统。 在操作期间,系统从图形源接收输入视频流。 系统通过前置存储器缓冲器和后置存储器缓冲器来引导输入视频流以产生输出视频流。 在将输入视频流引导通过该组存储器缓冲器的同时,系统将视频帧从输入视频流写入后缓冲器,同时从前缓冲器中的前一视频帧驱动输出视频流。 当视频帧的写入完成时,系统切换缓冲器,使得后缓冲器变为前缓冲器,其驱动输出视频流,并且前缓冲器变为备用缓冲器或后缓冲器,后缓冲器从后缓冲器接收后续帧 输入视频流。

    Method and system for charging a series battery
    23.
    发明授权
    Method and system for charging a series battery 有权
    串联电池充电的方法和系统

    公开(公告)号:US08432133B2

    公开(公告)日:2013-04-30

    申请号:US13402784

    申请日:2012-02-22

    IPC分类号: H02J7/04

    CPC分类号: H02J7/0013 H02J7/0021

    摘要: Some embodiments of the present invention provide a system for charging a series battery, wherein the series battery is comprised of a set of banks which are connected in series, so that the same charging current passes through each bank. During the charging process, the system measures a voltage across each bank in the set of banks. The system then compares the measured voltage with a target voltage for each bank, and adjusts the charging process based on results of the comparisons between the measured voltage and the target voltage.

    摘要翻译: 本发明的一些实施例提供了一种用于对串联电池充电的系统,其中串联电池由串联连接的一组组组成,使得相同的充电电流通过每个组。 在充电过程中,系统测量该组银行中每个银行的电压。 然后,系统将测量的电压与每个组的目标电压进行比较,并根据测量电压和目标电压之间的比较结果调整充电过程。

    DYNAMIC THERMAL CONTROL FOR WIRELESS TRANSCEIVERS
    24.
    发明申请
    DYNAMIC THERMAL CONTROL FOR WIRELESS TRANSCEIVERS 有权
    无线收发器动态热控制

    公开(公告)号:US20120276949A1

    公开(公告)日:2012-11-01

    申请号:US13460685

    申请日:2012-04-30

    IPC分类号: H04W88/06

    摘要: Methods and apparatus for dynamic thermal management and control within, e.g., small form-factor wireless devices such as laptop computers or cellular “smartphones”. In one embodiment, a thermal management system monitors the temperature (or other relevant criteria) for one or more components, and implements different operating states within the wireless transceiver (e.g., Wi-Fi™ or WiMAX transceiver) so as to both reduce thermal output and minimize disruption to the wireless link and/or user experience. In another embodiment, a wireless client may communicate with other clients, and/or access points, so as to cooperatively provide more options for thermal management. In addition, methods and apparatus employing “high performance” (e.g., high power output or high data rate) radios within aggressively small industrial designs are also disclosed.

    摘要翻译: 在诸如膝上型计算机或蜂窝式智能电话之类的小尺寸无线设备之内的动态热管理和控制的方法和装置。 在一个实施例中,热管理系统监视一个或多个组件的温度(或其他相关标准),并且在无线收发器(例如,Wi-Fi TM或WiMAX收发器)内实现不同的操作状态,以便减少热输出 并最大程度地减少对无线链路和/或用户体验的干扰。 在另一个实施例中,无线客户端可以与其他客户端和/或接入点通信,以便协作地提供用于热管理的更多选项。 此外,还公开了在激进小型工业设计中采用高性能(例如,高功率输出或高数据速率)无线电的方法和装置。

    RESONANT OSCILLATOR WITH START UP AND SHUT DOWN CIRCUITRY
    25.
    发明申请
    RESONANT OSCILLATOR WITH START UP AND SHUT DOWN CIRCUITRY 有权
    具有启动和关断电路的谐振器

    公开(公告)号:US20120105162A1

    公开(公告)日:2012-05-03

    申请号:US13314825

    申请日:2011-12-08

    IPC分类号: H03B5/12

    摘要: A system which starts up and shuts down a resonant oscillator circuit. During start up, the system operates a driving circuit, which is external to the resonant oscillator circuit, wherein the driving circuit uses a first clock signal to control a first phase output of the resonant oscillator circuit. At the same time, the driving circuit uses a second clock signal to control a second phase output of the resonant oscillator circuit, wherein the first and second clock signals have opposite phases. While the first and second phase outputs are being controlled, the system ramps up an input voltage, which is used to power the resonant oscillator circuit, wherein the ramping takes place across multiple initial oscillation periods. During shut down, the system shuts down the resonant oscillator circuit by ramping down the input voltage. Next, the system clamps the first and second phase outputs to a fixed voltage.

    摘要翻译: 启动并关闭谐振振荡电路的系统。 在启动期间,系统操作在谐振振荡器电路外部的驱动电路,其中驱动电路使用第一时钟信号来控制谐振振荡器电路的第一相输出。 同时,驱动电路使用第二时钟信号来控制谐振振荡器电路的第二相输出,其中第一和第二时钟信号具有相反的相位。 当控制第一和第二相输出时,系统斜坡上升用于对谐振振荡器电路供电的输入电压,其中斜坡在多个初始振荡周期内发生。 在关机期间,系统通过降低输入电压来关闭谐振振荡器电路。 接下来,系统将第一和第二相输出钳位到固定电压。

    Method and system for charging a series battery
    26.
    发明授权
    Method and system for charging a series battery 有权
    串联电池充电的方法和系统

    公开(公告)号:US08134336B2

    公开(公告)日:2012-03-13

    申请号:US12479343

    申请日:2009-06-05

    IPC分类号: H02J7/04

    CPC分类号: H02J7/0013 H02J7/0021

    摘要: Some embodiments of the present invention provide a system for charging a series battery, wherein the series battery is comprised of a set of banks which are connected in series, so that the same charging current passes through each bank. During the charging process, the system measures a voltage across each bank in the set of banks. The system then compares the measured voltage with a target voltage for each bank, and adjusts the charging process based on results of the comparisons between the measured voltage and the target voltage.

    摘要翻译: 本发明的一些实施例提供了一种用于对串联电池充电的系统,其中串联电池由串联连接的一组组组成,使得相同的充电电流通过每个组。 在充电过程中,系统测量该组银行中每个银行的电压。 然后,系统将测量的电压与每个组的目标电压进行比较,并根据测量电压和目标电压之间的比较结果调整充电过程。

    CONTROLLING POWER LOSS IN A SWITCHED-CAPACITOR POWER CONVERTER
    27.
    发明申请
    CONTROLLING POWER LOSS IN A SWITCHED-CAPACITOR POWER CONVERTER 有权
    控制开关电源电源转换器的电源损耗

    公开(公告)号:US20110031957A1

    公开(公告)日:2011-02-10

    申请号:US12783728

    申请日:2010-05-20

    IPC分类号: G05F3/02

    摘要: The disclosed embodiments relate to a system that implements a switched-capacitor power converter which is configured to actively control power loss while converting an input voltage to an output voltage. This system includes one or more switched-capacitor blocks (SCBs), wherein each SCB includes a first capacitor and a set of switching devices configured to couple a constant-potential terminal and a time-varying-potential terminal of the first capacitor between the input voltage, the output voltage and a reference voltage. The system also includes a clocking circuit which produces gate drive signals for switching transistors in the one or more SCBs. The system additionally includes a controller configured to actively control the gate drive signals from the clocking circuit to substantially minimize the power loss for the switched-capacitor power converter.

    摘要翻译: 所公开的实施例涉及实现开关电容器功率转换器的系统,其被配置为在将输入电压转换为输出电压的同时主动地控制功率损耗。 该系统包括一个或多个开关电容器块(SCB),其中每个SCB包括第一电容器和一组开关器件,其被配置为将第一电容器的恒定电位端子和时变电位端子耦合在输入端 电压,输出电压和参考电压。 该系统还包括产生用于在一个或多个SCB中的开关晶体管的栅极驱动信号的时钟电路。 该系统还包括控制器,其被配置为主动地控制来自时钟电路的栅极驱动信号,以基本上最小化开关电容器功率转换器的功率损耗。

    System and method for power-efficient charging and discharging of a capacitive load from a single source
    28.
    再颁专利
    System and method for power-efficient charging and discharging of a capacitive load from a single source 有权
    从单个电源对电容性负载进行高效充电和放电的系统和方法

    公开(公告)号:USRE42066E1

    公开(公告)日:2011-01-25

    申请号:US11040608

    申请日:2005-01-21

    IPC分类号: H02M3/07

    CPC分类号: H02M3/07

    摘要: A system and method for efficiently charging and discharging a capacitive load from a single voltage source. The system includes a first switch for selectively connecting the voltage source to the load and a second switch for selectively providing a short across the load as may be common in the art. A particularly novel aspect of the invention resides in the provision of plural capacitive elements and a switching mechanism for selectively connecting each of the capacitive elements to the load whereby the load is gradually charged or discharged. In the illustrative embodiment, the switching mechanism includes a set of switches for selectively connecting each of the capacitive elements to the capacitive load and a switch control mechanism for selectively activating the switches.

    摘要翻译: 一种用于从单个电压源高效地对容性负载进行充电和放电的系统和方法。 该系统包括用于选择性地将电压源连接到负载的第一开关和用于选择性地跨越负载提供短路的第二开关,如本领域常见的那样。 本发明的特别新颖的方面在于提供多个电容元件和用于选择性地将每个电容元件连接到负载的开关机构,由此负载逐渐充电或放电。 在说明性实施例中,切换机构包括用于选择性地将每个电容元件连接到电容性负载的开关组以及用于选择性地启动开关的开关控制机构。

    Power-efficient, pulsed driving of capacitive loads to controllable voltage levels
    29.
    发明授权
    Power-efficient, pulsed driving of capacitive loads to controllable voltage levels 失效
    功率高效的脉冲驱动电容负载到可控电压水平

    公开(公告)号:US07663618B2

    公开(公告)日:2010-02-16

    申请号:US11283292

    申请日:2005-11-18

    IPC分类号: G09G5/00

    摘要: Power-efficient, pulsed driving of capacitive loads to controllable voltage levels, with particular applicability to LCDs. Energy stored in a portion of the capacitive load is recovered during a recovery phase. Time-varying signals are used to drive the load and to recover the stored energy, thus minimizing power losses, using processes named adiabatic charging and adiabatic discharging.

    摘要翻译: 功率高效的脉冲驱动电容负载到可控的电压水平,特别适用于LCD。 存储在电容性负载的一部分中的能量在恢复阶段被恢复。 使用时变信号来驱动负载并恢复存储的能量,从而最小化功率损耗,使用称为绝热充电和绝热放电的工艺。