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    • 81. 发明授权
    • Digital DC-DC converter using digital modulation
    • 数字DC-DC转换器采用数字调制
    • US07554308B2
    • 2009-06-30
    • US10591891
    • 2005-02-04
    • Jeong-Jin RohSung-Jin Park
    • Jeong-Jin RohSung-Jin Park
    • H02M3/157
    • H02M3/157
    • A digital DC-DC converter is implemented using first-order delta-sigma modulation, rather than A/D conversion. In the DC-DC converter, a PWM generator converts an input DC voltage to a preset level DC voltage according to an input PWM signal. A converter converts the DC voltage from the PWM generator to a preset level voltage. A delta-sigma modulator converts a feedback voltage Vfd corresponding to the output voltage Vout of the converter to a 1-bit digital voltage Vo according to a preset reference voltage Vref. A counter counts logic 1's in 1-bit digital voltage signals Vo from the delta-sigma modulator. A delay controller controls a high-level delay time according to the number of logic 1's counted by the counter and transfers a PWM signal having the controlled high-level delay time to the PWM generator.
    • 使用一阶Δ-Σ调制实现数字DC-DC转换器,而不是A / D转换。 在DC-DC转换器中,PWM发生器根据输入的PWM信号将输入直流电压转换为预设电平的直流电压。 A转换器将来自PWM发生器的直流电压转换为预设电平电压。 Δ-Σ调制器根据预设的参考电压Vref将对应于转换器的输出电压Vout的反馈电压Vfd转换为1位数字电压Vo。 计数器对来自delta-Σ调制器的1位数字电压信号Vo中的逻辑1进行计数。 延迟控制器根据计数器计数的逻辑1的数量控制高电平延迟时间,并将具有受控高电平延迟时间的PWM信号传送到PWM发生器。
    • 82. 发明授权
    • Plasma extraction microcavity plasma device and method
    • 等离子体提取微腔等离子体装置及方法
    • US07482750B2
    • 2009-01-27
    • US11344514
    • 2006-01-31
    • J. Gary EdenSung-Jin Park
    • J. Gary EdenSung-Jin Park
    • H01J17/49
    • G01N21/73G01N21/6404H05H1/2406H05H2001/2412
    • A preferred embodiment plasma extraction microcavity plasma device generates a spatially-confined plasma in a gas or vapor, or gas and vapor mixture, including, for example, atmospheric pressure air. A microcavity plasma device is excited by a potential applied between excitation electrodes of the microcavity plasma device, and a probe electrode proximate the microcavity is maintained at the potential of one of the electrodes, extracts plasma from the microcavity plasma device. In preferred embodiments, the excitation electrodes of the microcavity plasma device are isolated from the plasma by dielectric, and time-varying (AC, RF, bipolar or pulsed DC, etc.) potential excites a plasma that is then extracted by the probe electrode. In alternate embodiments, the microcavity plasma device has an excitation electrode that contacts the plasma. A DC potential excites a plasma that is then extracted by the probe electrode.
    • 优选的实施方案等离子体提取微腔等离子体装置在气体或蒸汽或气体和蒸汽混合物中产生空间限制的等离子体,包括例如大气压的空气。 微腔等离子体装置被施加在微腔等离子体装置的激励电极之间的电位激发,并且靠近微腔的探针电极保持在电极之一的电位,从微腔等离子体装置中提取等离子体。 在优选实施例中,微腔等离子体装置的激发电极通过电介质与等离子体隔离,时变(AC,RF,双极或脉冲DC等)电位激发等离子体,然后等离子体被探针电极提取。 在替代实施例中,微腔等离子体装置具有接触等离子体的激发电极。 DC电位激发等离子体,然后由探针电极提取。
    • 83. 发明申请
    • Low voltage microcavity plasma device and addressable arrays
    • 低电压微腔等离子体器件和可寻址阵列
    • US20080129185A1
    • 2008-06-05
    • US11811892
    • 2007-06-12
    • J.Gary EdenSung-Jin ParkPaul A. TchertchianSeung Hoon Sung
    • J.Gary EdenSung-Jin ParkPaul A. TchertchianSeung Hoon Sung
    • H05H1/24
    • H01J11/12
    • Microcavity plasma devices and arrays of microcavity plasma devices are provided that have a reduced excitation voltage. A trigger electrode disposed proximate to a microcavity reduce the excitation voltage required between first and second electrodes to ignite a plasma in the microcavity when gas(es) or vapor(s) (or combinations thereof) are contained within the microcavity. The invention also provides symmetrical microplasma devices and arrays of microcavity plasma devices for which current waveforms are the same for each half-cycle of the voltage driving waveform. Additionally, the invention also provides devices that have standoff portions and voids that can reduce cross talk. The devices are preferably also used with a trigger electrode.
    • 提供微腔等离子体器件和微腔等离子体器件的阵列,其具有降低的激发电压。 在微腔内包含气体或蒸汽(或其组合)时,靠近微腔设置的触发电极减小了第一和第二电极之间所需的激发电压,以点燃微腔中的等离子体。 本发明还提供对称的微等离子体装置和微腔等离子体装置的阵列,其电流波形对于电压驱动波形的每个半周期是相同的。 此外,本发明还提供了具有能够减少串扰的间隔部分和空隙的装置。 这些装置优选地也与触发电极一起使用。
    • 87. 发明申请
    • Plasma extraction microcavity plasma device and method
    • 等离子体提取微腔等离子体装置及方法
    • US20070108910A1
    • 2007-05-17
    • US11344514
    • 2006-01-31
    • J. Gary EdenSung-Jin Park
    • J. Gary EdenSung-Jin Park
    • H01J61/04
    • G01N21/73G01N21/6404H05H1/2406H05H2001/2412
    • A preferred embodiment plasma extraction microcavity plasma device generates a spatially-confined plasma in a gas or vapor, or gas and vapor mixture, including, for example, atmospheric pressure air. A microcavity plasma device is excited by a potential applied between excitation electrodes of the microcavity plasma device, and a probe electrode proximate the microcavity is maintained at the potential of one of the electrodes, extracts plasma from the microcavity plasma device. In preferred embodiments, the excitation electrodes of the microcavity plasma device are isolated from the plasma by dielectric, and time-varying (AC, RF, bipolar or pulsed DC, etc.) potential excites a plasma that is then extracted by the probe electrode. In alternate embodiments, the microcavity plasma device has an excitation electrode that contacts the plasma. A DC potential excites a plasma that is then extracted by the probe electrode.
    • 优选的实施方案等离子体提取微腔等离子体装置在气体或蒸汽或气体和蒸汽混合物中产生空间限制的等离子体,包括例如大气压的空气。 微腔等离子体装置被施加在微腔等离子体装置的激励电极之间的电位激发,并且靠近微腔的探针电极保持在电极之一的电位,从微腔等离子体装置提取等离子体。 在优选实施例中,微腔等离子体装置的激发电极通过电介质与等离子体隔离,时变(AC,RF,双极或脉冲DC等)电位激发等离子体,然后等离子体被探针电极提取。 在替代实施例中,微腔等离子体装置具有接触等离子体的激发电极。 DC电位激发等离子体,然后由探针电极提取。
    • 89. 发明申请
    • Method and apparatus for efficiently decoding low density parity check code
    • 用于有效解码低密度奇偶校验码的方法和装置
    • US20060107193A1
    • 2006-05-18
    • US11247188
    • 2005-10-12
    • Sung-Jin ParkSang-Hyo KimHan-Ju KimMin-Goo Kim
    • Sung-Jin ParkSang-Hyo KimHan-Ju KimMin-Goo Kim
    • G06F11/00H03M13/00
    • H03M13/1145H03M13/1105H03M13/1111H03M13/1134H03M13/1137
    • A method and apparatus are provided for decoding a forward error correction code in a mobile communication system using a LDPC code. A check node processor performs check node processing on information received with a plurality of check nodes and an accumulator accumulates check node output values from the check node processor with previous accumulated values. An edge memory stores the check node output values, and two accumulation memories separately store accumulated values from the accumulator and the previous accumulated values. A subtractor subtracts the check node output values from the accumulated values, and a hard-decision block performs hard-decision on the received information and the output value of the subtractor. A bit buffer stores the hard-decision result, and a parity check block performs parity check on the hard-decision result to determine whether to stop iterative decoding. A multiplexer delivers the subtraction result values to both the check node processor and the hard-decision block.
    • 提供一种用于使用LDPC码对移动通信系统中的前向纠错码进行解码的方法和装置。 校验节点处理器对由多个校验节点接收的信息执行校验节点处理,并且累加器从具有先前累积值的校验节点处理器累加校验节点输出值。 边缘存储器存储校验节点输出值,并且两个累积存储器分别存储来自累加器的累加值和先前累积值。 减法器从累加值中减去校验节点输出值,硬判决块对接收到的信息和减法器的输出值进行硬判决。 位缓冲器存储硬判决结果,奇偶校验块对硬判决结果执行奇偶校验,以确定是否停止迭代解码。 多路复用器将减法结果值递送给校验节点处理器和硬判决块。