METHODS AND APPARATUS FOR DISPLAYING VIDEO DESPITE A NONFUNCTIONAL OPERATING SYSTEM
    11.
    发明申请
    METHODS AND APPARATUS FOR DISPLAYING VIDEO DESPITE A NONFUNCTIONAL OPERATING SYSTEM 有权
    显示屏幕非功能操作系统的方法和装置

    公开(公告)号:US20140146183A1

    公开(公告)日:2014-05-29

    申请号:US13994951

    申请日:2012-09-26

    IPC分类号: H04N5/44

    摘要: A first video messaging service, running on top of an operating system in a data processing system, automatically presents a first video message. After using the first video messaging service to present the first video message, the data processing system automatically determines whether the first video messaging service has become nonfunctional. In response to determining that the first video messaging service has become nonfunctional, the data processing system automatically uses a backup video messaging service to present a second video message. The backup video messaging service operates in a boot environment. In one embodiment, the data processing system is configured to provide digital signage, the first video messaging service presents content for the digital signage when the operating system is operational, and the second video messaging service presents content for the digital signage when the operating system is nonfunctional. Other embodiments are described and claimed.

    摘要翻译: 在数据处理系统中的操作系统之上运行的第一视频消息服务自动呈现第一视频消息。 在使用第一视频消息服务呈现第一视频消息之后,数据处理系统自动地确定第一视频消息服务是否已经变得不起作用。 为了响应于确定第一视频消息收发服务变得不起作用,数据处理系统自动使用备份视频消息服务来呈现第二视频消息。 备份视频消息服务在引导环境中运行。 在一个实施例中,数据处理系统被配置为提供数字标牌,当操作系统可操作时,第一视频消息收发服务呈现用于数字标牌的内容,并且当操作系统为 无功能 描述和要求保护其他实施例。

    Adaptive voltage position DC-DC regulators and the method thereof
    12.
    发明授权
    Adaptive voltage position DC-DC regulators and the method thereof 有权
    自适应电压位置DC-DC调节器及其方法

    公开(公告)号:US08395368B2

    公开(公告)日:2013-03-12

    申请号:US12564870

    申请日:2009-09-22

    申请人: Qian Ouyang

    发明人: Qian Ouyang

    IPC分类号: G05F1/04 G05F1/08

    摘要: The present invention discloses an adaptive voltage position DC-DC regulator and the method thereof, the regulator comprising a main circuit and a control circuit which includes a sensing unit, a feedback unit, a comparing unit, a PWM generator and a driver. The regulator realizes the adaptive voltage position control with simple internal circuit and fewer pins.

    摘要翻译: 本发明公开了一种自适应电压位置DC-DC调节器及其方法,该调节器包括主电路和控制电路,其包括感测单元,反馈单元,比较单元,PWM发生器和驱动器。 调节器通过简单的内部电路和较少的引脚实现自适应电压位置控制。

    LOAD TRANSIENT SENSING CIRCUIT FOR A POWER CONVERTER
    13.
    发明申请
    LOAD TRANSIENT SENSING CIRCUIT FOR A POWER CONVERTER 审中-公开
    用于电力转换器的负载瞬态感应电路

    公开(公告)号:US20100141222A1

    公开(公告)日:2010-06-10

    申请号:US12634021

    申请日:2009-12-09

    申请人: Qian Ouyang

    发明人: Qian Ouyang

    IPC分类号: G05F1/10

    CPC分类号: H02M3/158 H02M3/1584

    摘要: The present invention provides a circuit for sensing a load transient of a power converter. The circuit comprises an input terminal coupled to the voltage output terminal of the power converter through a resistor. The circuit further comprises a comparator for comparing an input voltage with a reference voltage to generate a load transient signal to control output voltage parameters of the power converter. The circuit has a simple circuit structure and can promptly sense the load transient of the power converter to thereby control various output parameters.

    摘要翻译: 本发明提供一种用于感测功率转换器负载瞬变的电路。 电路包括通过电阻器耦合到功率转换器的电压输出端的输入端。 该电路还包括比较器,用于将输入电压与参考电压进行比较,以产生负载瞬变信号,以控制功率转换器的输出电压参数。 电路具有简单的电路结构,可以及时检测功率转换器的负载瞬变,从而控制各种输出参数。

    Constant on-time converter with stabilizing operation and method thereof
    15.
    发明授权
    Constant on-time converter with stabilizing operation and method thereof 有权
    具有稳定运行的恒定导通时间转换器及其方法

    公开(公告)号:US08749216B2

    公开(公告)日:2014-06-10

    申请号:US13324504

    申请日:2011-12-13

    IPC分类号: H02M3/157

    CPC分类号: H02M3/156

    摘要: A constant on-time converter has an input terminal, an output terminal, a feedback circuit, an operating circuit, a comparison circuit, a timer, a driving circuit and a switching circuit. The operating circuit is coupled to a compensation signal adjusted by a digital controller, and the compensation signal rises up to a predetermined amplitude when a feedback signal is less than a reference signal.

    摘要翻译: 恒定导通时间转换器具有输入端子,输出端子,反馈电路,工作电路,比较电路,定时器,驱动电路和开关电路。 操作电路耦合到由数字控制器调整的补偿信号,并且当反馈信号小于参考信号时,补偿信号上升到预定幅度。

    METHODS AND APPARATUS TO PROVIDE DYNAMIC MESSAGING SERVICES
    16.
    发明申请
    METHODS AND APPARATUS TO PROVIDE DYNAMIC MESSAGING SERVICES 有权
    提供动态消息传递服务的方法和设备

    公开(公告)号:US20130111477A1

    公开(公告)日:2013-05-02

    申请号:US13722088

    申请日:2012-12-20

    IPC分类号: G06F9/455

    CPC分类号: G06F9/45533 G06F9/451

    摘要: Methods and apparatus to provide dynamic messaging services are disclosed. An example method includes determining, in a pre-boot environment, supported dimensions for display of information on the display screen; generating, in the pre-boot environment, restricted dimensions that are less than the supported dimensions; providing the restricted dimensions to an operating system of a virtual machine supported by a virtual machine manager, wherein the restricted dimensions define a boundary between a first screen portion and a second screen portion; displaying first information in the first screen portion and displaying second information in the second screen portion; and preventing, via the virtual machine manager, elimination of the first screen portion from the display screen.

    摘要翻译: 公开了提供动态消息接发服务的方法和装置。 示例性方法包括在预引导环境中确定用于在显示屏幕上显示信息的支持尺寸; 在预引导环境中生成小于所支持尺寸的限制尺寸; 向所述虚拟机管理器支持的虚拟机的操作系统提供所述限制的维度,其中所述受限维度定义了第一屏幕部分和第二屏幕部分之间的边界; 在第一屏幕部分显示第一信息并在第二屏幕部分显示第二信息; 并且经由虚拟机管理器防止从显示屏幕消除第一屏幕部分。

    Constant on-time converter and the method of operation
    18.
    发明授权
    Constant on-time converter and the method of operation 有权
    恒定导通时间转换器及其操作方法

    公开(公告)号:US08198880B2

    公开(公告)日:2012-06-12

    申请号:US12688577

    申请日:2010-01-15

    申请人: Qian Ouyang

    发明人: Qian Ouyang

    IPC分类号: G05F1/40

    CPC分类号: H02M3/156

    摘要: The present invention discloses a control circuit for constant on-time converter and a control method thereof. The proposed constant on-time DC/DC converter stabilizes the system and improves the performance of the load transient response without large equivalent series resistance of the output capacitor.

    摘要翻译: 本发明公开了一种恒定导通时间转换器的控制电路及其控制方法。 所提出的恒定导通时间DC / DC转换器稳定系统,并提高负载瞬态响应的性能,而不会产生输出电容器的大的等效串联电阻。

    ADAPTIVE VOLTAGE POSITION DC-DC REGULATORS AND THE METHOD THEREOF
    19.
    发明申请
    ADAPTIVE VOLTAGE POSITION DC-DC REGULATORS AND THE METHOD THEREOF 有权
    自适应电压DC-DC调节器及其方法

    公开(公告)号:US20100072970A1

    公开(公告)日:2010-03-25

    申请号:US12564870

    申请日:2009-09-22

    申请人: Qian Ouyang

    发明人: Qian Ouyang

    IPC分类号: G05F1/10

    摘要: The present invention discloses an adaptive voltage position DC-DC regulator and the method thereof, the regulator comprising a main circuit and a control circuit which includes a sensing unit, a feedback unit, a comparing unit, a PWM generator and a driver. The regulator realizes the adaptive voltage position control with simple internal circuit and fewer pins.

    摘要翻译: 本发明公开了一种自适应电压位置DC-DC调节器及其方法,该调节器包括主电路和控制电路,其包括感测单元,反馈单元,比较单元,PWM发生器和驱动器。 调节器通过简单的内部电路和较少的引脚实现自适应电压位置控制。

    ANTI-THEFT IN FIRMWARE
    20.
    发明申请
    ANTI-THEFT IN FIRMWARE 审中-公开
    固件中的反义词

    公开(公告)号:US20150220742A1

    公开(公告)日:2015-08-06

    申请号:US13997369

    申请日:2012-10-25

    IPC分类号: G06F21/60 G06F21/32 G06F9/44

    摘要: Methods, systems and storage media are disclosed for enhanced system boot processing that authenticates boot code based on biometric information of the user before loading the boot code to system memory. For at least some embodiments, the biometric authentication augments authentication of boot code based on a unique platform identifier. The enhanced boot code authentication occurs before loading of the operating system, and may be performed during a Unified Extensible Firmware Interface (UEFI) boot sequence. Other embodiments are described and claimed.

    摘要翻译: 公开了用于增强的系统引导处理的方法,系统和存储介质,其在将引导代码加载到系统存储器之前,基于用户的生物特征信息认证引导代码。 对于至少一些实施例,生物认证认证增强了基于唯一平台标识符的引导代码的认证。 增强的引导代码认证在加载操作系统之前发生,并且可以在统一的可扩展固件接口(UEFI)引导序列期间执行。 描述和要求保护其他实施例。