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    • 23. 发明申请
    • METHOD AND SYSTEM FOR HIGH EFFICIENCY, FAST TRANSIENT MULTI-CHANNEL LED DRIVER
    • 高效,快速的多通道LED驱动器的方法和系统
    • US20100283397A1
    • 2010-11-11
    • US12437273
    • 2009-05-07
    • Min ChenBryan Avery Legates
    • Min ChenBryan Avery Legates
    • H05B37/02
    • H03K7/08H05B33/0827
    • System and method for a light emitting diode (LED) driver are disclosed. To supply an LED bus voltage to a large array of LEDs organized in multiple channels where one or more LEDs are connected in series in each channel, an LED driver includes a power converter, a feedback generation circuit, and a phase-division based controller. The power converter is configured for providing the LED bus voltage to the multiple LED channels based on a voltage control signal. The feedback generation circuit is configured for generating a feedback signal based on the LED bus voltage supplied to the multiple LED channels. The phase-division based controller is configured for generating the voltage control signal based on the feedback signal and information from the multiple LED channels. The phase-division based controller divides each pulse width modulation (PWM) of each channel into a tracking phase and a pre-charging phase so that the LED bus voltage supplied to the multiple channels changes between the tracking phase and the pre-charging phase.
    • 公开了用于发光二极管(LED)驱动器的系统和方法。 为了将LED总线电压提供给组合在多个通道中的LED阵列,其中一个或多个LED在每个通道中串联连接,LED驱动器包括功率转换器,反馈产生电路和基于相位的控制器。 功率转换器被配置为基于电压控制信号将LED总线电压提供给多个LED通道。 反馈产生电路被配置为基于提供给多个LED通道的LED总线电压来产生反馈信号。 基于相位分配的控制器被配置为基于反馈信号和来自多个LED通道的信息来产生电压控制信号。 基于相位的控制器将每个通道的每个脉冲宽度调制(PWM)分为跟踪阶段和预充电阶段,以便提供给多个通道的LED总线电压在跟踪阶段和预充电阶段之间变化。
    • 25. 发明授权
    • Oral preparation of dyclonine hydrochloride
    • 口服盐酸德乐宁制剂
    • US07696228B2
    • 2010-04-13
    • US11914681
    • 2006-01-13
    • Tianjiang SunXiaohong GuHongguo LuMin Chen
    • Tianjiang SunXiaohong GuHongguo LuMin Chen
    • A61K31/4453
    • A61K9/08A61K9/0056A61K9/0095A61K31/4453A61K47/10A61K47/32
    • The present invention discloses an oral preparation of dyclonine hydrochloride for the endoscopic examination in upper gastrointestinal tract, which has the effects of anesthetization and lubrication, and an oral preparation comprising dyclonine hydrochloride that has the advantages of avoiding foam in the body cavity, preventing vomiting, and offering a clear view. The preparation of the present invention comprises, as main ingredients, 0.2%-3% weight percent of dyclonine hydrochloride, 1%-12% weight percent of polyvinyl alcohol, 1%-10% volume percent of glycerin, 1%-10% volume percent of a defoaming agent, and a balance of a pharmaceutically acceptable adjuvant. The viscosity of the preparation is in a range of 30 to 300 mpa·s and the pH value is in a range of 2.0 to 8.0.
    • 本发明公开了一种口服上海胃肠道内镜检查口服制剂,具有麻醉和润滑作用,含有盐酸德格林的口服制剂,其具有避免体腔泡沫,防止呕吐, 并提供清晰的看法。 本发明的制剂作为主要成分包含0.2%-3%重量的盐酸德克罗宁,1%-12%重量的聚乙烯醇,1%-10%的甘油体积%,1%-10%的体积 百分比的消泡剂,以及药学上可接受的佐剂的余量。 制剂的粘度为30〜300mpa·s,pH值为2.0〜8.0。
    • 27. 发明授权
    • High efficiency electronic ballast for metal halide lamp
    • 金属卤化物灯高效电子镇流器
    • US07459862B2
    • 2008-12-02
    • US11715612
    • 2007-03-07
    • Heping ChenMin ChenQin KongWenxiong Zhang
    • Heping ChenMin ChenQin KongWenxiong Zhang
    • H05B37/02
    • H05B41/2925Y02B20/208Y10S315/02
    • A high efficiency electronic ballast for large power metal halide lamp includes a power input circuit, a power factor correction circuit, a secondary power supply, a control circuit, a half bridge power converter, a resonant starting circuit, and lamp current on/off detector. The half bridge power converter has two DC block output capacitor to protect the converter when the output is shorted to ground. The operation frequency of the converter is chosen in the weak area of the acoustic resonant to avoid the acoustic resonant in the lamp. The control circuit adds a method for deep frequency and amplitude modulation and delay control function to the converter. For fine sweep pass through the output resonance point for igniting high voltage, two sweep rate control circuits are added. The metal halide lamp can be operated with very stable from starting to normal operation with high electronic ballast system efficiency.
    • 一种用于大功率金属卤化物灯的高效率电子镇流器包括电源输入电路,功率因数校正电路,二次电源,控制电路,半桥功率转换器,谐振启动电路和灯电流开/关检测器 。 半桥电源转换器有两个直流电阻输出电容,用于在输出短路到地时保护转换器。 在谐振的弱区域选择转换器的工作频率,以避免灯中的声谐振。 控制电路为转换器增加了深度和幅度调制和延迟控制功能的方法。 为了精细扫描通过用于点燃高电压的输出谐振点,增加了两个扫频速率控制电路。 金属卤化物灯可以以高电子镇流器系统效率从起始到正常运行非常稳定地运行。
    • 28. 发明申请
    • Oral Preparation of Dyclonine Hydrochloride
    • 口服盐酸达克罗宁制剂
    • US20080200506A1
    • 2008-08-21
    • US11914681
    • 2004-01-13
    • Tianjiang SunXiaohong GuHongguo LuMin Chen
    • Tianjiang SunXiaohong GuHongguo LuMin Chen
    • A61K31/4453
    • A61K9/08A61K9/0056A61K9/0095A61K31/4453A61K47/10A61K47/32
    • The present invention discloses an oral preparation of dyclonine hydrochloride for the endoscope examination in upper gastrointestinal tract, which has the effects of anaesthetization and lubrication, and especially an oral preparation comprising dyclonine hydrochloride that has the advantages of avoiding the foam in the body cavity, preventing vomit, and offering a clear view. The preparation of the present invention comprises, as main ingredients, 0.2%-3% weight percent of dyclonine hydrochloride, 1%-12% weight percent of polyvinyl alcohol, 1%-10% volume percent of glycerin, 1%-10% volume percent of a defoaming agent, and a balance of a pharmaceutically acceptable adjuvant. The viscosity of the preparation is in a range of 30 to 300 mpa·s and the pH value is in a range of 2.0 to 8.0.
    • 本发明公开了一种用于上消化道内窥镜检查的口服制剂,其具有麻醉和润滑作用,特别是包含盐酸德克伦宁的口服制剂,其具有避免体腔泡沫的优点,预防 呕吐,并提供清晰的看法。 本发明的制剂作为主要成分包含0.2%-3%重量的盐酸德克罗宁,1%-12%重量的聚乙烯醇,1%-10%的甘油体积%,1%-10%的体积 百分比的消泡剂,以及药学上可接受的佐剂的余量。 制剂的粘度为30〜300mpa.s,pH值为2.0〜8.0。
    • 30. 发明授权
    • Precision endoscopic imaging system
    • 精密内窥镜成像系统
    • US06448545B1
    • 2002-09-10
    • US09483005
    • 2000-01-18
    • Min Chen
    • Min Chen
    • H01J4014
    • A61B1/042A61B1/00186A61B1/00193A61B5/0073A61B5/0084H04N2005/2255
    • An imaging system is disclosed for use in low-light environments or environments where low-levels of such radiation is desirable. Examples of such environments are endoscopy, laparoscopy, mammography and night photography. In the case of radiation that is other than visible light, a radiation converter and method for fabricating same is disclosed. The radiation converter comprises a film of heavy scintillator (e.g. CdWO4) coated on a fiber optical window to efficiently convert the radiation into visible light. The visible light is passed into a signal amplifier employing a focussing electron-bombarded charge-couple device (FEBCCD) or a focussing electron-bombarded complementary metal-oxide semiconductor (FEBCMOS) to amplify the signal. Novel methods of performing three-dimension imaging using this system as well as removing the effects of high-speed movement are also disclosed.
    • 一种成像系统被公开用于低照度环境或其中需要低水平这种辐射的环境中。 这些环境的例子是内窥镜检查,腹腔镜检查,乳房X线摄影和夜间摄影。 在不同于可见光的辐射的情况下,公开了一种辐射转换器及其制造方法。 辐射转换器包括涂覆在光纤光学窗口上的重闪烁体(例如CdWO 4)的膜,以有效地将辐射转换成可见光。 使用聚焦电子轰击电荷耦合器件(FEBCCD)或聚焦电子轰击的互补金属氧化物半导体(FEBCMOS)将可见光传送到信号放大器中以放大信号。 还公开了使用该系统执行三维成像以及消除高速运动的影响的新颖方法。