Switch control device with zero-cross point estimation by edge detection, power supply device comprising the same, and switch control method with zero-cross point estimation by edge detection
    1.
    发明授权
    Switch control device with zero-cross point estimation by edge detection, power supply device comprising the same, and switch control method with zero-cross point estimation by edge detection 有权
    通过边缘检测进行零交叉点估算的开关控制装置,包括相同的电源装置,以及通过边缘检测进行零交叉点估计的开关控制方法

    公开(公告)号:US09000744B2

    公开(公告)日:2015-04-07

    申请号:US13187741

    申请日:2011-07-21

    CPC分类号: H02M7/2176 H05B33/0818

    摘要: Provided are a switch control device, a switch control method, and a power supply device. The present invention generates power voltage required to operate the switch control device by using full-wave current rectification voltage generated by rectifying an AC input and detects a zero cross-point when a full-wave rectification voltage is zero voltage by using the edge of power voltage. The present invention generates a reference signal synchronized to the full-wave rectification voltage by using the detected zero cross-point and controls a switching operation of a power switch by comparing a reference signal with current which flows on the power switch.

    摘要翻译: 提供开关控制装置,开关控制方法和电源装置。 本发明通过使用整流AC输入产生的全波整流电压来产生操作开关控制装置所需的电力电压,并且通过使用功率边缘来检测全波整流电压为零电压时的零交叉点 电压。 本发明通过使用检测到的零交叉点产生与全波整流电压同步的参考信号,并通过将参考信号与在电源开关上流动的电流进行比较来控制电源开关的切换操作。

    Battery charging apparatus
    2.
    发明申请
    Battery charging apparatus 审中-公开
    电池充电装置

    公开(公告)号:US20090153097A1

    公开(公告)日:2009-06-18

    申请号:US12152158

    申请日:2008-05-12

    IPC分类号: H02J7/00

    CPC分类号: H02J7/1415 Y02T10/7005

    摘要: The present invention provides a battery charging apparatus with reduced weight, volume and manufacturing cost. The apparatus includes: an alternating current power source including a first electrode and a second electrode and supplying an alternating voltage for charging the battery; a diode including an anode electrode connected to the battery and a cathode electrode connected to the second electrode and half-wave rectifying the alternating voltage applied from the alternating current power source; a three-phase motor connected to the first electrode and transmitting to the battery the half-wave rectified voltage applied from the diode and the alternating current power source; and an inverter connected between the three-phase motor and the battery and converting the voltage applied from the three-phase motor into a direct voltage to transmit the direct voltage to the battery. Alternatively, the apparatus may comprise an alternating current power source, an inverter, a three-phase motor and a switching unit.

    摘要翻译: 本发明提供一种减轻重量,体积和制造成本的电池充电装置。 该装置包括:交流电源,包括第一电极和第二电极,并提供用于对电池充电的交流电压; 连接到所述电池的阳极和连接到所述第二电极的阴极并对从所述交流电源施加的交流电压进行半波整流的二极管; 连接到第一电极并且向电池传输从二极管和交流电源施加的半波整流电压的三相电动机; 以及连接在三相电动机和电池之间的逆变器,并且将从三相电动机施加的电压转换为直流电压以将直流电压传输到电池。 或者,该装置可以包括交流电源,逆变器,三相电动机和开关单元。

    Frequency demodulator for recovering SECAM chrominance signal and method thereof
    3.
    发明申请
    Frequency demodulator for recovering SECAM chrominance signal and method thereof 有权
    用于恢复SECAM色度信号的频率解调器及其方法

    公开(公告)号:US20080049144A1

    公开(公告)日:2008-02-28

    申请号:US11889647

    申请日:2007-08-15

    IPC分类号: H04N9/66

    CPC分类号: H04N11/186

    摘要: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided. A frequency demodulator for recovering a chrominance signal, the frequency demodulator comprises a phase differentiator generating a phase difference component between neighboring samples from an input signal and a phase estimator calculating a phase difference between the neighboring samples by using an arctangent approximation, based on the generated phase difference component, wherein the frequency demodulator generates a frequency-demodulated chrominance signal and the phase difference corresponds to the chrominance signal.

    摘要翻译: 一种用于利用存储器(SECAM)复合视频基带信号(CVBS)从顺序色彩恢复色度信号的装置,更具体地说,涉及一种频率解调器和恢复SECAM色度信号的方法,该SECAM色度信号可以利用实数部分和 虚数部分,并且使用反正切近似生成频率解调色度信号,从而可以简化频率解调器的电路配置以进行定点计算。 一种用于恢复色度信号的频率解调器,所述频率解调器包括相位微分器,所述相位微分器基于输入信号产生相邻采样之间的相位差分量;以及相位估计器,基于所生成的相位估计器,所述相位估计器通过使用反正切近似来计算相邻采样之间的相位差 相位差分量,其中频率解调器产生频率解调色度信号,相位差对应于色度信号。

    FAST RESTART OF APPLICATIONS USING SHARED MEMORY
    5.
    发明申请
    FAST RESTART OF APPLICATIONS USING SHARED MEMORY 审中-公开
    使用共享内存的快速重新启动应用程序

    公开(公告)号:US20150149736A1

    公开(公告)日:2015-05-28

    申请号:US14242642

    申请日:2014-04-01

    IPC分类号: G06F3/06

    摘要: Technologies are described for restarting an application while maintaining data in memory (e.g., using shared memory). For example, shared memory can be associated with an application. The shared memory can also be associated with a holder process to maintain the shared memory from the time the application stops to the time the application starts again. When the application starts, the shared memory can be associated with the started application. In addition, restart of in-memory databases can be provided using shared memory. For example, in-memory data can be maintained when a database process or database management system stops and starts (e.g., during a restart).

    摘要翻译: 描述了在维护数据在存储器中(例如,使用共享存储器)时重新启动应用的技术。 例如,共享内存可以与应用程序相关联。 共享存储器还可以与保持器进程相关联,以在从应用程序停止的时间到应用程序再次启动时保持共享内存。 当应用程序启动时,共享内存可以与启动的应用程序相关联。 此外,可以使用共享内存来提供内存中数据库的重新启动。 例如,当数据库进程或数据库管理系统停止并启动时(例如,在重新启动期间),可以维护内存中数据。

    CCD-type color video camera with gamma correction
    7.
    发明授权
    CCD-type color video camera with gamma correction 失效
    CCD型彩色摄像机,具有伽马校正功能

    公开(公告)号:US5361094A

    公开(公告)日:1994-11-01

    申请号:US120534

    申请日:1993-09-14

    申请人: Ji-hoon Jang

    发明人: Ji-hoon Jang

    CPC分类号: H04N5/202 H04N5/16 H04N9/69

    摘要: A video signal processing circuit of a CCD-type color video camera includes a gamma-correcting circuit section, a delay circuit section, a chrominance signal processor and a luminance signal processor. Accordingly, the circuit is configured such that gamma-compensation processing is performed before the separation of the luminance and chrominance signals, and a DC fluctuation due to the gamma-compensation processing is compensated in the luminance signal processor. Thus, horizontal noise caused by the gamma correction can be eliminated, which not only improves picture quality but also enables a reduction in chip size.

    摘要翻译: CCD型彩色摄像机的视频信号处理电路包括伽马校正电路部分,延迟电路部分,色度信号处理器和亮度信号处理器。 因此,电路被配置为使得在亮度和色度信号的分离之前执行伽马补偿处理,并且在亮度信号处理器中补偿由伽马补偿处理引起的DC波动。 因此,可以消除由伽马校正引起的水平噪声,这不仅提高了图像质量,而且还使得芯片尺寸减小。

    SWITCH CONTROL DEVICE, POWER SUPPLY DEVICE COMPRISING THE SAME AND SWITCH CONTROL METHOD
    8.
    发明申请
    SWITCH CONTROL DEVICE, POWER SUPPLY DEVICE COMPRISING THE SAME AND SWITCH CONTROL METHOD 有权
    开关控制装置,包括该开关控制装置的电源装置和开关控制方法

    公开(公告)号:US20120020134A1

    公开(公告)日:2012-01-26

    申请号:US13187741

    申请日:2011-07-21

    IPC分类号: H02M7/06

    CPC分类号: H02M7/2176 H05B33/0818

    摘要: Provided are a switch control device, a switch control method, and a power supply device. The present invention generates power voltage required to operate the switch control device by using full-wave current rectification voltage generated by rectifying an AC input and detects a zero cross-point when a full-wave rectification voltage is zero voltage by using the edge of power voltage. The present invention generates a reference signal synchronized to the full-wave rectification voltage by using the detected zero cross-point and controls a switching operation of a power switch by comparing a reference signal with current which flows on the power switch.

    摘要翻译: 提供开关控制装置,开关控制方法和电源装置。 本发明通过使用整流AC输入产生的全波整流电压来产生操作开关控制装置所需的电力电压,并且通过使用功率边缘来检测全波整流电压为零电压时的零交叉点 电压。 本发明通过使用检测到的零交叉点产生与全波整流电压同步的参考信号,并通过将参考信号与在电源开关上流动的电流进行比较来控制电源开关的切换操作。

    Frequency demodulator for recovering SECAM chrominance signal and method thereof
    9.
    发明授权
    Frequency demodulator for recovering SECAM chrominance signal and method thereof 有权
    用于恢复SECAM色度信号的频率解调器及其方法

    公开(公告)号:US08107013B2

    公开(公告)日:2012-01-31

    申请号:US11889647

    申请日:2007-08-15

    IPC分类号: H04N9/66

    CPC分类号: H04N11/186

    摘要: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided. A frequency demodulator for recovering a chrominance signal, the frequency demodulator comprises a phase differentiator generating a phase difference component between neighboring samples from an input signal and a phase estimator calculating a phase difference between the neighboring samples by using an arctangent approximation, based on the generated phase difference component, wherein the frequency demodulator generates a frequency-demodulated chrominance signal and the phase difference corresponds to the chrominance signal.

    摘要翻译: 一种用于利用存储器(SECAM)复合视频基带信号(CVBS)从顺序色彩恢复色度信号的装置,更具体地说,涉及一种频率解调器和恢复SECAM色度信号的方法,该SECAM色度信号可以利用实数部分和 虚数部分,并且使用反正切近似生成频率解调色度信号,从而可以简化频率解调器的电路配置以进行定点计算。 一种用于恢复色度信号的频率解调器,所述频率解调器包括相位微分器,所述相位微分器基于输入信号产生相邻采样之间的相位差分量;以及相位估计器,基于所生成的相位估计器,所述相位估计器通过使用反正切近似来计算相邻采样之间的相位差 相位差分量,其中频率解调器产生频率解调色度信号,相位差对应于色度信号。

    Apparatus for recovering SECAM chrominance signal and method thereof
    10.
    发明申请
    Apparatus for recovering SECAM chrominance signal and method thereof 审中-公开
    用于恢复SECAM色度信号的装置及其方法

    公开(公告)号:US20080049140A1

    公开(公告)日:2008-02-28

    申请号:US11889929

    申请日:2007-08-17

    IPC分类号: H04N3/27

    CPC分类号: H04N9/78 H04N9/455

    摘要: An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, an apparatus and method of recovering a SECAM chrominance signal to simplify a circuit configuration of a frequency demodulator since a phase different calculation scheme is simplified is provided. The apparatus for recovering a chrominance signal from a CVBS includes: a frequency demodulator calculating a phase difference between neighboring samples by using an arctangent approximation from an input signal; and a direct current (DC) compensation unit eliminating a DC offset from the calculated phase difference, wherein the phase difference corresponds to the chrominance signal.

    摘要翻译: 一种用于从具有存储器(SECAM)复合视频基带信号(CVBS)的顺序色彩恢复色度信号的装置,更具体地说,一种恢复SECAM色度信号以简化频率解调器的电路配置的装置和方法, 提供了不同的计算方案。 用于从CVBS恢复色度信号的装置包括:频率解调器,通过使用来自输入信号的反正切近似来计算相邻采样之间的相位差; 和直流(DC)补偿单元,消除所计算的相位差的DC偏移,其中相位差对应于色度信号。