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    • 1. 发明授权
    • Retractable pen
    • US10343445B2
    • 2019-07-09
    • US15660937
    • 2017-07-26
    • Chien Ming Wu
    • Chien Ming Wu
    • B43K24/08B43K7/12
    • A retractable pen includes a barrel, an ink cartridge, a limiting member, a shifting member and a deformable member. When the shifting member is moved relative to the limiting member between a first position and a third position, the ink cartridge can be moved from a retracted position to an extended position or from the extended position to the retracted position. When the ink cartridge is located at the extended position, the deformable member can be further compressed by between the shifting member and the ink cartridge, allowing the shifting member to be moved further from the third position to a second position closer to the ink cartridge. When the shifting member is located at the second position, the ink cartridge is continuously held to the extended position and pressed against a lead-out opening of the barrel without the risk of swaying when a user writes with the retractable pen.
    • 3. 发明申请
    • VEHICLE IDLE-SPEED WARNING SYSTEM AND IDLE-SPEED DETECTION METHOD
    • 车辆空转警告系统和空速检测方法
    • US20140012483A1
    • 2014-01-09
    • US13594615
    • 2012-08-24
    • Chun-Ming HUANGChih-Chyau YANGChun-Yu CHENChien-Ming WU
    • Chun-Ming HUANGChih-Chyau YANGChun-Yu CHENChien-Ming WU
    • F02D28/00G08B5/00
    • F02D41/08F02D41/2403F02D2041/228F02D2200/501F02D2200/701G01C21/16
    • A vehicle idle-speed warning system and vehicle idle-speed detection method thereof are provided. It is non-invasive, that is, there is no need to change or modify any part of the constructing parts in the engine compartment. The present invention can be adopted stand-alone, or be applied to existing popular apparatuses, such as GPS, driving recorders, smart handheld devices, and vehicle electronic equipments. With the composing elements of a motion information module, an input module, an output module, a timer module and an information processing module, the present invention can accurately determine whether the vehicle under surveillance is in idle state and for how long it is in the idle state, and send an alarm signal automatically. With the implementation of the present invention, drivers can always be alarmed with the vehicle idling situations to prevent possible dangers or coming tickets due to the violation of traffic regulations in certain countries.
    • 提供了一种车辆怠速预警系统和车辆怠速检测方法。 这是非侵入性的,也就是说,不需要更改或修改发动机舱中构造部件的任何部分。 本发明可以单独使用,也可以应用于GPS,驾驶记录器,智能手持装置,车载电子设备等现有的流行装置。 利用运动信息模块,输入模块,输出模块,定时器模块和信息处理模块的组成元件,本发明可以准确地确定被监视的车辆是否处于空闲状态以及在多长时间内 空闲状态,并自动发送报警信号。 随着本发明的实施,驾驶员总是可以用车辆空转情况来警惕,以防止在某些国家因违反交通规则而导致的可能的危险或来车。
    • 9. 发明申请
    • DIGITAL-TO-ANALOG CONVERTER
    • 数字到模拟转换器
    • US20080117088A1
    • 2008-05-22
    • US11934056
    • 2007-11-01
    • Chen-Chih HuangMing-Han LeeChien-Ming Wu
    • Chen-Chih HuangMing-Han LeeChien-Ming Wu
    • H03M1/66
    • H03M1/0604H03M1/742
    • The present invention discloses a digital-to-analog converter (DAC), including a bias voltage generating unit, a digital-to-analog converting stage, and an operating amplifier. The bias voltage generating unit is utilized for generating a first bias voltage. The digital-to-analog converting stage is utilized for converting a digital signal into a voltage signal, the digital-to-analog converting stage includes a current source for providing a current, and a switching unit is coupled to the current source for controlling the current to pass the switching unit according to the digital signal, and a load. The current flows through the load to generate the voltage signal. The operating amplifier is coupled to the bias voltage generating unit and the digital-to-analog converting stage for controlling the current source according to the first bias voltage.
    • 本发明公开了一种数模转换器(DAC),包括偏置电压产生单元,数 - 模转换级和运算放大器。 偏置电压产生单元用于产生第一偏置电压。 数模转换级用于将数字信号转换为电压信号,数模转换级包括用于提供电流的电流源,并且开关单元耦合到电流源,用于控制 电流根据数字信号和负载通过开关单元。 电流流经负载以产生电压信号。 操作放大器耦合到偏置电压产生单元和数模转换级,用于根据第一偏置电压来控制电流源。