Bi-directional wavelength division multiplexing self-healing passive optical network
    171.
    发明授权
    Bi-directional wavelength division multiplexing self-healing passive optical network 有权
    双向波分复用自愈无源光网络

    公开(公告)号:US07174102B2

    公开(公告)日:2007-02-06

    申请号:US10918279

    申请日:2004-08-13

    Abstract: Disclosed is a bi-directional wavelength division multiplexing self-healing passive optical network including: a central office for multiplexing and transmitting downstream optical signals to a first and a second main fiber; a remote node connected to the central office through the first and the second main fiber, for transmitting multiple pairs of the downstream optical signals, which are obtained by demultiplexing one inputted pair of the multiplexed downstream optical signals according to wavelengths, to corresponding pairs of distribution fibers; and a plurality of optical network units connected to the remote node through the multiple pairs of distribution fibers, each of the optical network units being selectively connected to one corresponding pair of the distribution fibers, for receiving a corresponding downstream optical signal from the selected distribution fiber.

    Abstract translation: 公开了一种双向波分复用自愈无源光网络,包括:中心局,用于将下行光信号复用并发送到第一和第二主光纤; 通过第一和第二主光纤连接到中心局的远程节点,用于发送多对下行光信号,这些下行光信号是通过根据波长将一个输入的多路复用的下行光信号的一对解复用到相应的分布对 纤维; 以及多个光网络单元,通过多对分配光纤连接到远程节点,每个光网络单元选择性地连接到一对相应的分配光纤,用于从所选分配光纤接收相应的下行光信号 。

    Nitride semiconductor light-emitting device
    174.
    发明授权
    Nitride semiconductor light-emitting device 有权
    氮化物半导体发光器件

    公开(公告)号:US07115914B2

    公开(公告)日:2006-10-03

    申请号:US10944745

    申请日:2004-09-21

    CPC classification number: H01L33/32 H01L33/06

    Abstract: A nitride semiconductor light-emitting device includes a first conductive nitride semiconductor layer; an active layer formed on the first conductive nitride semiconductor layer, and having at least one quantum well layer and at least one quantum barrier layer alternatively laminated; and a second conductive nitride semiconductor layer formed on the active layer, wherein at least one of the quantum well layer and quantum barrier layer in the active layer is doped with elemental Al in a concentration of less than 1%.

    Abstract translation: 氮化物半导体发光器件包括第一导电氮化物半导体层; 形成在所述第一导电氮化物半导体层上并且具有至少一个量子阱层和至少一个量子势垒层交替叠层的有源层; 以及形成在有源层上的第二导电氮化物半导体层,其中有源层中的量子阱层和量子势垒层中的至少一个掺杂有浓度小于1%的元素Al。

    Paper detecting device and image forming apparatus including the same
    175.
    发明申请
    Paper detecting device and image forming apparatus including the same 审中-公开
    纸张检测装置和包括该纸张检测装置的图像形成装置

    公开(公告)号:US20060110198A1

    公开(公告)日:2006-05-25

    申请号:US11250415

    申请日:2005-10-17

    CPC classification number: G03G15/65 G03G2215/00548 G03G2215/00628

    Abstract: A paper detecting device includes a paper contact arm, one side of which contacts a surface of a sheet of paper and the other side is connected to a rotating member. A sensor unit senses the rotation of the paper contact arm. An elastic member elastically biases the paper contact arm in the direction in which the paper contact arm contacts the sheet of paper. A contact force regulating unit is installed to generate a rotational force in the direction opposite to the direction of an elastic force by the elastic member. Accordingly, because the paper contact arm is returned to its initial position by the elastic member, paper jams are substantially prevented. The contact force regulating unit regulates the paper contact force within a predetermined range to avoid damage and contamination of a sheet of paper. The simple structure of the paper detecting device improves mass-production thereof.

    Abstract translation: 纸检测装置包括纸接触臂,其一侧接触一张纸的表面,另一侧连接到旋转构件。 传感器单元感测到纸张接触臂的旋转。 弹性构件沿着纸张接触臂与纸张接触的方向弹性偏压纸张接触臂。 接触力调节单元安装成产生与弹性构件的与弹力方向相反的方向的旋转力。 因此,由于纸接触臂通过弹性部件返回到其初始位置,基本上防止了卡纸。 接触力调节单元将纸张接触力调节在预定范围内,以避免纸张的损坏和污染。 纸张检测装置的简单结构改进了其大量生产。

    System and method for controlling horizontal size of monitor screen
    177.
    发明授权
    System and method for controlling horizontal size of monitor screen 失效
    监控屏幕水平尺寸的系统和方法

    公开(公告)号:US06906688B2

    公开(公告)日:2005-06-14

    申请号:US10266111

    申请日:2002-10-07

    CPC classification number: H04N3/223

    Abstract: A system and method for controlling the horizontal size of a monitor screen are provided. The provided system for controlling the horizontal size of a monitor screen includes a processor, a driving circuit, and a microcomputer. Here, the processor generates a calibration signal to control the horizontal size of a monitor screen, in response to predetermined control signals. The driving circuit receives the calibration signal and controls the driving capacity of the calibration signal according to an external load to output the calibration signal. The microcomputer generates the control signals. It is preferable that the processor includes a first converter circuit for generating an alternating current (AC) control signal to control an AC element of the calibration signal in response to predetermined control signals, a second converter circuit for generating a first direct current (DC) control signal in response to the control signals, thereby controlling the DC element of the calibration signal, a third converter circuit for generating a second DC control signal to control a DC element of the calibration signal in response to the control signals, and a calibration signal generation circuit for generating the calibration signal in response to the AC, first DC and second DC control signals. Accordingly, the provided processor and system for controlling the horizontal size of the monitor screen control the horizontal size of the monitor screen without being affected by microcomputer generated noise.

    Abstract translation: 提供了一种用于控制监视器屏幕的水平尺寸的系统和方法。 所提供的用于控制监视器屏幕的水平尺寸的系统包括处理器,驱动电路和微型计算机。 这里,响应于预定的控制信号,处理器产生校准信号以控制监视器屏幕的水平尺寸。 驱动电路接收校准信号,并根据外部负载控制校准信号的驱动能力,以输出校准信号。 微型计算机产生控制信号。 优选地,处理器包括:第一转换器电路,用于响应于预定的控制信号产生用于控制校准信号的AC元件的交流(AC)控制信号;第二转换器电路,用于产生第一直流(DC) 控制信号,从而控制校准信号的DC元件;第三转换器电路,用于产生第二DC控制信号,以响应于控制信号来控制校准信号的DC元件;以及校准信号 产生电路,用于响应于AC,第一DC和第二DC控制信号产生校准信号。 因此,用于控制监视器画面的水平尺寸的所提供的处理器和系统控制监视器屏幕的水平尺寸而不受微计算机产生的噪声的影响。

    Circuit and method for controlling delay of dynamic focus signal
    178.
    发明授权
    Circuit and method for controlling delay of dynamic focus signal 失效
    控制动态聚焦信号延迟的电路和方法

    公开(公告)号:US06794833B2

    公开(公告)日:2004-09-21

    申请号:US10359954

    申请日:2003-02-06

    Applicant: Jae-hoon Lee

    Inventor: Jae-hoon Lee

    CPC classification number: H04N3/26 G09G1/04

    Abstract: A circuit and a method for controlling a delay of a dynamic focus signal are provided. The delay control circuit includes a pulse center detecting circuit, a first delay control signal generating circuit, and a selection circuit. The pulse center detecting circuit generates a center detecting signal that detects a pulse center of a first pulse signal. The first delay control signal generating circuit generates a first delay control signal having a first logic level or a second logic level depending on the result of a comparison of a first comparative signal level generated in a form of a first degree function in response to the first pulse signal with a predetermined second comparative signal level. The selection circuit selects one of the center detecting signal and the first delay control signal in response to a predetermined selection signal and generates the selected signal as a second delay control signal that controls an amount of delay time of the dynamic focus signal. The delay control circuit further includes a digital-to-analog converter that generates the second comparative signal. A point at which the first delay control signal is generated is controlled in response to changes of the second comparative signal level. In the circuit and method for controlling a delay of a dynamic focus signal, an amount of delay time in the process where a dynamic focus signal is amplified in a CRT monitor is controlled.

    Abstract translation: 提供了一种用于控制动态聚焦信号的延迟的电路和方法。 延迟控制电路包括脉冲中心检测电路,第一延迟控制信号发生电路和选择电路。 脉冲中心检测电路产生检测第一脉冲信号的脉冲中心的中心检测信号。 第一延迟控制信号发生电路产生具有第一逻辑电平或第二逻辑电平的第一延迟控制信号,该第一延迟控制信号取决于响应于第一逻辑电平或第一逻辑电平而产生的第一度函数形式的第一比较信号电平的比较结果 具有预定的第二比较信号电平的脉冲信号。 选择电路响应于预定的选择信号选择中心检测信号和第一延迟控制信号之一,并且产生所选择的信号作为控制动态聚焦信号的延迟时间量的第二延迟控制信号。 延迟控制电路还包括产生第二比较信号的数模转换器。 响应于第二比较信号电平的变化来控制产生第一延迟控制信号的点。 在用于控制动态聚焦信号的延迟的电路和方法中,控制在CRT监视器中放大动态聚焦信号的处理中的延迟时间量。

    Micro-lens built-in vertical cavity surface emitting laser
    179.
    发明授权
    Micro-lens built-in vertical cavity surface emitting laser 失效
    微透镜内置垂直腔表面发射激光

    公开(公告)号:US06687282B2

    公开(公告)日:2004-02-03

    申请号:US09964511

    申请日:2001-09-28

    Abstract: A micro-lens built-in vertical cavity surface emitting laser (VCSEL). The micro-lens built-in VSEL includes a VCSEL portion emitting a laser beam in a direction in which semiconductor material layers are stacked; a micro-lens formed of a material capable of transmitting the laser beam emitted from the VCSEL portion; and an adjusting portion located between the VCSEL portion and the micro-lens adjusting a distance between the micro-lens and the VCSEL portion. When constructing an optical system with the VCSEL including the VCSEL portion, the adjusting portion, and the micro-lens, there is no need for a separate condensing lens and focusing position adjusting element. In addition, optical alignment structure is simple with increased freedom in arranging elements, and the number of parts required is sharply reduced.

    Abstract translation: 微透镜内置垂直腔表面发射激光器(VCSEL)。 内置VSEL的微透镜包括在半导体材料层堆叠的方向上发射激光束的VCSEL部分; 由能够透射从VCSEL部分发射的激光束的材料形成的微透镜; 以及位于VCSEL部分和微透镜之间调整微透镜和VCSEL部分之间的距离的调节部分。 当使用包括VCSEL部分,调整部分和微透镜的VCSEL构造光学系统时,不需要单独的聚光透镜和聚焦位置调节元件。 此外,光学对准结构简单,元件布置自由度增加,所需部件数量急剧减少。

    System status displaying device
    180.
    发明授权
    System status displaying device 失效
    系统状态显示设备

    公开(公告)号:US5995012A

    公开(公告)日:1999-11-30

    申请号:US32298

    申请日:1998-02-27

    CPC classification number: G05B23/0272 Y10S345/904 Y10S362/80

    Abstract: A status displaying device includes a plurality of modules each having a plurality of channels to display system status. The status displaying device comprises a plurality of LEDs corresponding to the number of the channels so as to display the system status by changing colors of the LEDs according to the module states.

    Abstract translation: 状态显示装置包括多个模块,每个模块具有多个通道以显示系统状态。 状态显示装置包括对应于通道数量的多个LED,以便通过根据模块状态改变LED的颜色来显示系统状态。

Patent Agency Ranking