METHOD FOR SWITCHING A MULTIMEDIA SOURCE AND MULTIMEDIA SINK FROM AN OPERATING MODE TO A STANDBY MODE, AND FROM A STANDBY MODE TO AN OPERATING MODE
    1.
    发明申请
    METHOD FOR SWITCHING A MULTIMEDIA SOURCE AND MULTIMEDIA SINK FROM AN OPERATING MODE TO A STANDBY MODE, AND FROM A STANDBY MODE TO AN OPERATING MODE 审中-公开
    将多媒体源和多媒体从操作模式切换到待机模式的方法,以及从待机模式到操作模式的方法

    公开(公告)号:US20110062794A1

    公开(公告)日:2011-03-17

    申请号:US12992628

    申请日:2009-05-20

    IPC分类号: H02B99/00

    摘要: The invention relates to a method for switching a multimedia source and multimedia sink from an operating mode to a standby mode, and a method for switching a multimedia source and multimedia sink from a standby mode to an operating mode. When the consumer device comprises two distributed boxes, such as a TV in which the display (multimedia sink) is separated from the processing unit (multimedia source) via a cable, then meeting the green rules for standby power becomes more complicated. The power consumption of processing unit and display unit should be minimal in standby mode. The methods of the invention provide for synchronizing the power states of both units, such that only the relevant parts remain active. The method is applicable on configurations where a DisplayPort link is used between a multimedia source, such as a set-top box, and a multimedia sink, such as a display. The invention provides a reduction in overall power consumption, while still complying with the Display-Port configuration and operation standard. In an embodiment of the invention, the source and sink are configured to allow communication of standby and wake-up requests/commands when the transmitter and receiver for the auxiliary channel are powered down. The invention also provides embodiments where the switching to and from standby of the source is triggered by user

    摘要翻译: 本发明涉及一种将多媒体源和多媒体接收器从操作模式切换到待机模式的方法,以及用于将多媒体源和多媒体接收器从待机模式切换到操作模式的方法。 当消费者设备包括诸如通过电缆将显示器(多媒体接收器)与处理单元(多媒体源)分离的TV的两个分布式盒子时,满足待机功率的绿色规则变得更加复杂。 处理单元和显示单元的功耗在待机模式下应为最小。 本发明的方法提供了两个单元的功率状态的同步,使得只有相关部分保持活动。 该方法适用于在诸如机顶盒的多媒体源和诸如显示器的多媒体接收器之间使用DisplayPort链路的配置。 本发明在仍然符合Display-Port配置和操作标准的同时,降低了整体功耗。 在本发明的一个实施例中,源和宿被配置为当辅助信道的发射机和接收机断电时允许通信待机和唤醒请求/命令。 本发明还提供了其中切换到来自待机的源是由用户触发的实施例

    Television power supply with polarity-independent charging paths
    2.
    发明授权
    Television power supply with polarity-independent charging paths 失效
    具有极性无关充电路径的电视电源

    公开(公告)号:US5672940A

    公开(公告)日:1997-09-30

    申请号:US632987

    申请日:1996-04-16

    申请人: Chun Hsing Wu

    发明人: Chun Hsing Wu

    摘要: A television receiver has a switched mode power supply controller, which may be deflection synchronized, which produces pulses in a power transformer. To power the controller during startup, before the internal power supply has started, a storage capacitor on the power supply input of the controller is coupled through a current limiting resistance to a rectified voltage from the AC mains so as to charge the storage capacitor during first polarity phases of the AC mains. The current limiting resistance includes a positive temperature coefficient (PTC) element which increases its impedance as it heats, to reduce power dissipation after initial connection of the television receiver to AC mains. In addition, a diode is coupled in a current path to the storage capacitor to charge the capacitor to the same polarity during opposite polarity phases of the AC mains. The two paths for charging the capacitor allow a relatively smaller value for the current limiting resistance, which remains coupled to the storage capacitor, and provides sufficient power to the controller without undue power dissipation over a wide range of power mains voltages.

    摘要翻译: 电视接收机具有开关模式电源控制器,其可以是偏转同步的,其在电力变压器中产生脉冲。 为了在启动期间为控制器供电,在内部电源开始之前,控制器的电源输入端上的存储电容器通过限流电阻耦合到来自交流电源的整流电压,以便在第一时间对存储电容器充电 交流电源的极性相位。 电流限制电阻包括正温度系数(PTC)元件,其在其加热时增加其阻抗,以在电视接收机初始连接到AC电源之后降低功率耗散。 此外,二极管在电流路径中耦合到存储电容器,以在AC电源的相反极性相位期间将电容器充电至相同的极性。 用于对电容器充电的两条路径允许相对较小的电流限制电阻值,该限流电阻保持耦合到存储电容器,并且在宽范围的电源电压下向控制器提供足够的功率而不会过度的功率消耗。

    Generating a scan velocity modulation signal
    3.
    发明授权
    Generating a scan velocity modulation signal 失效
    产生扫描速度调制信号

    公开(公告)号:US07369182B2

    公开(公告)日:2008-05-06

    申请号:US10532916

    申请日:2003-10-08

    申请人: Chun Hsing Wu

    发明人: Chun Hsing Wu

    IPC分类号: H04N5/21

    CPC分类号: H04N3/32

    摘要: The processing unit (1) for generating a scan velocity modulation signal (DS) has an input for receiving a video signal (VS) and an output for supplying a modulation signal (DS). The unit (1) comprises a series connection of, successively, a coring circuit (C), a differentiator (D), and a limiter (L). The display device (16) comprises a cathode ray tube (10) and the processing unit (1).

    摘要翻译: 用于产生扫描速度调制信号(DS)的处理单元(1)具有用于接收视频信号(VS)和用于提供调制信号(DS)的输出的输入。 单元(1)包括连续的取芯电路(C),微分器(D)和限制器(L)的串联连接。 显示装置(16)包括阴极射线管(10)和处理单元(1)。

    Protection circuit for a switch mode power supply
    4.
    发明授权
    Protection circuit for a switch mode power supply 失效
    开关电源的保护电路

    公开(公告)号:US5764461A

    公开(公告)日:1998-06-09

    申请号:US622911

    申请日:1996-03-27

    申请人: Chun Hsing Wu

    发明人: Chun Hsing Wu

    摘要: A controller, which is normally used for controlling different modes is used for circuit protection. The suipply voltage and control signals from the switched mode power supply to the controller are modified when a short circuit occurs. In response thereto, the controller switches "off" a mode-control signal and the switched mode power supply operates in standby mode.

    摘要翻译: 通常用于控制不同模式的控制器用于电路保护。 当短路发生时,从开关模式电源向控制器提供的电压和控制信号被修改。 作为响应,控制器切换“关闭”模式控制信号,并且开关模式电源在待机模式下操作。

    Startup protecting for a switch mode power supply
    6.
    发明授权
    Startup protecting for a switch mode power supply 失效
    启动保护开关模式电源

    公开(公告)号:US5712775A

    公开(公告)日:1998-01-27

    申请号:US622983

    申请日:1996-03-27

    申请人: Chun Hsing Wu

    发明人: Chun Hsing Wu

    摘要: Due to low output voltage during flyback mode of start phase the secondary current cannot be fully discharged in time. The current buildup will eventually damage the output transistor if the current is not limited. In order to prevent the current build up during start phase, the storage time of the output transistor of the SMPS has to be reduced. During the startup phase a negative bias capacitor is not fully charged. Thereby the base of an output transistor is not biased sufficiently when the transistor is switched off. So the transistor could not operate safely if the collector voltage is higher than Vceo. It is the object to keep charges, which are stored on the capacitor during startup phase and to reduce discharging of the capacitor. According to this invention means are provided between the base and the emitter of the output transistor. It is preferred that said means are realised by a resistor and a diode, connected in series.

    摘要翻译: 由于启动阶段的回扫模式下的低输出电压,次级电流不能及时完全放电。 如果电流不受限制,电流积聚将最终损坏输出晶体管。 为了防止在起动阶段积聚电流,必须减小SMPS的输出晶体管的存储时间。 在启动阶段,负偏置电容器未完全充电。 因此,当晶体管关断时,输出晶体管的基极不被充分地偏置。 如果集电极电压高于Vceo,晶体管就不能安全运行。 其目的是在起动阶段保持电容,并减少电容器的放电。 根据本发明,装置设置在输出晶体管的基极和发射极之间。 优选地,所述装置由串联连接的电阻器和二极管实现。

    Television startup current regulation
    7.
    发明授权
    Television startup current regulation 失效
    电视启动电流调节

    公开(公告)号:US5508588A

    公开(公告)日:1996-04-16

    申请号:US904303

    申请日:1992-06-25

    申请人: Chun Hsing Wu

    发明人: Chun Hsing Wu

    摘要: A television receiver has a switched mode power supply controller, which may be deflection synchronized, which produces pulses in a power transformer. To power the controller during startup, before the internal power supply has started, a storage capacitor on the power supply input of the controller is coupled through a current limiting resistance to a rectified voltage from the AC mains so as to charge the storage capacitor during first polarity phases of the AC mains. The current limiting resistance includes a positive temperature coefficient (PTC) element which increases its impedance as it heats, to reduce power dissipation after initial connection of the television receiver to AC mains. In addition, a diode is coupled in a current path to the storage capacitor to charge the capacitor to the same polarity as during opposite polarity phases of the AC mains. The two paths for charging the capacitor allow a relatively smaller value for the current limiting resistance, which remains coupled to the storage capacitor, and provides sufficient power to the controller without undue power dissipation over a wide range of power mains voltages.

    摘要翻译: 电视接收机具有开关模式电源控制器,其可以是偏转同步的,其在电力变压器中产生脉冲。 为了在启动期间为控制器供电,在内部电源开始之前,控制器的电源输入端上的存储电容器通过限流电阻耦合到来自交流电源的整流电压,以便在第一时间对存储电容器充电 交流电源的极性相位。 电流限制电阻包括正温度系数(PTC)元件,其在其加热时增加其阻抗,以在电视接收机初始连接到AC电源之后降低功率耗散。 此外,二极管在电流路径中耦合到存储电容器,以将电容器充电至与AC电源的相反极性相同的极性。 用于对电容器充电的两条路径允许相对较小的限流电阻值,该电流限制电阻保持耦合到存储电容器,并且在宽范围的电源电压下向控制器提供足够的功率而不会过度的功率消耗。