Positioning hinge
    31.
    发明授权
    Positioning hinge 失效
    定位铰链

    公开(公告)号:US06553625B2

    公开(公告)日:2003-04-29

    申请号:US10014306

    申请日:2001-11-13

    IPC分类号: E05C1764

    摘要: A positioning hinge for providing pivotal positioning is disclosed. The positioning hinge comprises a pivotal member, a pivotal base, a first torsion spring and a friction device. The friction device includes a positioning element and a slide-friction member, which are kept in a resilient friction contact with each other by means of a resilient mechanism. This enables the LCD display to be opened due to the pivoting action of the pivotal base under the results of resilience and frictional positioning. It is appreciated that the above features advantageously result in an appropriate reduction in the opening speed of the LCD display while at the same time obtaining a steady frictional pivotal positioning, thereby prolonging the working life of the positioning hinge.

    摘要翻译: 公开了一种用于提供枢转定位的定位铰链。定位铰链包括枢转构件,枢转底座,第一扭转弹簧和摩擦装置。 摩擦装置包括定位元件和滑动摩擦件,它们通过弹性机构彼此保持弹性摩擦接触。 这使得LCD显示器由于在回弹和摩擦定位的结果下的枢转基座的枢转作用而被打开。 应当理解,上述特征有利地导致LCD显示器的打开速度的适当降低,同时获得稳定的摩擦枢转定位,从而延长定位铰链的工作寿命。

    Power polarity reversal protecting circuit for an integrated circuit
    32.
    发明授权
    Power polarity reversal protecting circuit for an integrated circuit 有权
    用于集成电路的电源极性反转保护电路

    公开(公告)号:US06529356B2

    公开(公告)日:2003-03-04

    申请号:US09754304

    申请日:2001-01-05

    IPC分类号: H02H318

    摘要: A power polarity reversal protecting circuit for an integrated circuit includes a protecting transistor, PMOS components and NMOS components, wherein the protecting transistor is a protecting PMOS transistor or a protecting NMOS transistor. If the protecting transistor is the PMOS transistor, a gate and a source of the protecting PMOS transistor are respectively connected to ground and power. A drain and a substrate of the protecting PMOS transistor is connected to a substrate of the PMOS component. If the protecting transistor is the protecting NMOS transistor, a gate and a source of the protecting NMOS transistor are respectively connected to power and ground. A drain and a substrate of the protecting NMOS transistor is connected to a substrate of the NMOS component. When the power polarity is in reversal connection, the protecting transistors are terminated to prevent damage from the power polarity reversal connection.

    摘要翻译: 用于集成电路的电源极性反转保护电路包括保护晶体管,PMOS组件和NMOS组件,其中保护晶体管是保护PMOS晶体管或保护NMOS晶体管。 如果保护晶体管是PMOS晶体管,则保护PMOS晶体管的栅极和源极分别连接到地和电源。 保护PMOS晶体管的漏极和衬底连接到PMOS部件的衬底。 如果保护晶体管是保护NMOS晶体管,则保护NMOS晶体管的栅极和源极分别连接到电源和地。 保护NMOS晶体管的漏极和衬底连接到NMOS部件的衬底。 当电源极性反向连接时,保护晶体管被终止,以防止从电源极性反转连接造成的损坏。

    Positioning hinge adapted between a computer main body and a display
    33.
    发明授权
    Positioning hinge adapted between a computer main body and a display 失效
    适用于计算机主体和显示器之间的定位铰链

    公开(公告)号:US06481057B2

    公开(公告)日:2002-11-19

    申请号:US09811645

    申请日:2001-03-20

    申请人: Wen-Chi Lin

    发明人: Wen-Chi Lin

    IPC分类号: E05C1764

    摘要: A positioning hinge for a notebook computer has multiple collars each provided with an obliquely formed friction plate. The friction plate engages a side face of an extension of a bracket configured to attach securely to a body of the computer to provide the necessary friction force to hole the monitor at an angle relative to the body of the computer. With such an arrangement, the friction force can be adjusted to accommodate different weights of the monitor by reducing or increasing the number of the collars.

    摘要翻译: 用于笔记本电脑的定位铰链具有多个带有倾斜成形的摩擦板的套环。 摩擦板与支架的延伸部的侧面接合,该侧面被配置为牢固地附接到计算机的主体以提供必要的摩擦力以使监视器相对于计算机主体成一定角度。 通过这样的布置,可以通过减小或增加套环的数量来调节摩擦力以适应监视器的不同重量。

    Keyboard encoding system actuated by opening and closing of keyboard
cover
    34.
    发明授权
    Keyboard encoding system actuated by opening and closing of keyboard cover 失效
    通过打开和关闭键盘盖来启动键盘编码系统

    公开(公告)号:US5831555A

    公开(公告)日:1998-11-03

    申请号:US819016

    申请日:1997-03-17

    CPC分类号: H03M11/02 H04B1/202

    摘要: A cover-actuated keyboard encoding system is disclosed which can be used either alone or as a part of a universal remote control unit. It contains (a) a keyboard; (b) a memory for storing a plurality of control codes; (c) a special keyboard cover for covering the first keyboard; and (d) a computer program to convert the covered keys of the first keyboard into a control code. The keyboard cover is designed such that it contains one or more key-seat protrusions which are arranged such that they will be pressing against one or more of the first keys when the keyboard cover is closed. A CPU is programmed to scan the key board and convert the scanned keyboard value to a control code, in accordance with the number and locations of the keys that are being pressed during a power-on or a reset. This control code can be utilized as an initial code for identifying the brand and product type of the appliance to controlled by the universal remote control unit, thus allowing the universal remote control unit to operate as a conventional remote controller. The CPU can be further programmed to modify at least a portion of the initial control code if it detects that a universal key is pressed.

    摘要翻译: 公开了一种盖式致动键盘编码系统,其可以单独使用或作为通用遥控单元的一部分使用。 它包含(a)键盘; (b)存储多个控制码的存储器; (c)用于覆盖第一键盘的专用键盘盖; 和(d)将第一键盘的被覆盖键转换为控制代码的计算机程序。 键盘盖被设计成使得其包含一个或多个键座突起,其被布置成当键盘盖关闭时它们将被按压在一个或多个第一键上。 CPU被编程为根据在上电或复位期间按下的键的数量和位置,扫描键盘并将扫描的键盘值转换为控制代码。 该控制代码可以用作用于识别由通用遥控单元控制的设备的品牌和产品类型的初始代码,从而允许通用遥控单元作为常规遥控器操作。 如果CPU检测到通用键被按下,则CPU可进一步被编程为修改初始控制代码的至少一部分。

    Motor speed control circuit having a synchronous PWM signal
    35.
    发明授权
    Motor speed control circuit having a synchronous PWM signal 有权
    电机速度控制电路具有同步PWM信号

    公开(公告)号:US06621242B2

    公开(公告)日:2003-09-16

    申请号:US09966433

    申请日:2001-10-01

    IPC分类号: H02P700

    CPC分类号: H02P6/16

    摘要: A motor speed control having synchronous PWM signals has a synchronous phase detecting unit and a PWM control unit. The synchronous phase detecting unit detects the phase variation of a Hall signal, which represents the phase change of the motor, and outputs a digital value to the PWM control unit. The PWM control unit compares the digital value with a speed control command so as to obtain a PWM signal, wherein the PWM signal is synchronized with the Hall signal. Since the PWM signal is synchronized with the Hall signal, the motor is operated smoothly even in the low speed rotation, and audible noises are effectively reduced.

    摘要翻译: 具有同步PWM信号的电动机速度控制具有同步相位检测单元和PWM控制单元。 同步相位检测单元检测代表电动机的相位变化的霍尔信号的相位变化,并将数字值输出到PWM控制单元。 PWM控制单元将数字值与速度控制命令进行比较,以获得PWM信号,其中PWM信号与霍尔信号同步。 由于PWM信号与霍尔信号同步,所以即使在低速旋转中电动机也能平稳运行,并且有效降低了可听见的噪声。