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    • 91. 发明申请
    • ADJUSTABLE CONVERGENCE MECHANISM FOR PROJECTION DISPLAYS
    • 用于投影显示的可调整合机构
    • US20110019158A1
    • 2011-01-27
    • US12719150
    • 2010-03-08
    • Guo Qing He
    • Guo Qing He
    • G03B21/14
    • H04N9/317
    • A light engine for use in a projector, comprising an adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. In one embodiment, motors are mounted on fixed elements of the sub-assemblies for driving movable elements thereof, including imaging devices thereof such as digital micromirror devices. In another embodiment, manual adjustment screws are provided in place of the motors, and wedge locking mechanisms are provided for driving and locking the position of the movable elements imaging devices mounted thereon.
    • 一种用于投影仪的光引擎,包括用于微调红,绿和蓝通道子组件的相对位置的可调节会聚机构。 在一个实施例中,电动机安装在子组件的固定元件上,用于驱动其可移动元件,包括其成像装置,例如数字微镜装置。 在另一个实施例中,提供手动调节螺钉来代替电动机,并且提供楔形锁定机构用于驱动和锁定安装在其上的可移动元件成像装置的位置。
    • 100. 发明授权
    • Noise reduction architecture for low dropout voltage regulators
    • 低压差稳压器的降噪架构
    • US06522114B1
    • 2003-02-18
    • US10013161
    • 2001-12-10
    • Anton BakkerQing He
    • Anton BakkerQing He
    • G05F140
    • G05F1/467
    • The present invention relates to a low dropout voltage regulator comprising a noise reduction architecture. The low dropout voltage regulator according to the invention comprises a comparison stage for comparing a reference voltage signal with a feedback signal and for providing a first output voltage signal in dependence thereupon. The feedback signal is obtained from a node interposed between a first resistor and a second resistor of a voltage divider. The voltage divider is interposed between an input port for receiving an input voltage signal and ground and is connected to an output terminal of the comparison stage. The first output voltage signal is then low pass filtered prior provision to a gain stage. The gain stage provides gain to the first output voltage signal prior provision to an output port. The noise reduction architecture of the low dropout voltage regulator according to the invention is highly advantageous by providing high efficiency while high frequency noise is substantially reduced.
    • 本发明涉及一种包括降噪架构的低压差稳压器。 根据本发明的低压差稳压器包括比较级,用于将参考电压信号与反馈信号进行比较,并用于依次提供第一输出电压信号。 反馈信号从插入在分压器的第一电阻器和第二电阻器之间的节点获得。 分压器插在用于接收输入电压信号的输入端和地之间,并连接到比较级的输出端。 然后,第一个输出电压信号在提供给增益级之前被低通滤波。 增益级在提供给输出端口之前提供对第一输出电压信号的增益。 根据本发明的低压差稳压器的降噪架构通过提供高效率而显着降低高频噪声是非常有利的。