Electronic Ballast with Lamp End of Life Detection and Protection Circuits
    11.
    发明申请
    Electronic Ballast with Lamp End of Life Detection and Protection Circuits 有权
    电子镇流器带灯寿命检测和保护电路

    公开(公告)号:US20100001649A1

    公开(公告)日:2010-01-07

    申请号:US12491994

    申请日:2009-06-25

    IPC分类号: H05B41/36 H05B41/00

    CPC分类号: H05B41/3925 H05B41/2985

    摘要: An electronic ballast A includes an inverter circuit for converting a DC voltage into a high-frequency voltage, a resonant circuit which is connected between outputs of the inverter circuit and lights a discharge lamp at a high frequency by a resonant action, a dimming circuit for changing an output voltage to the discharge lamp by changing an operating frequency of the inverter circuit, a DC component detecting circuit for detecting a DC voltage component of the discharge lamp and a control operating circuit which detects an output signal of the DC component detecting circuit for every predetermined period to reduce or stop an output to the discharge lamp in the case where the output signal exceeds a predetermined reference value and to prohibit the protection operation when periodic change amount in the output signal reaches a predetermined value or higher.

    摘要翻译: 电子镇流器A包括用于将DC电压转换为高频电压的逆变器电路,连接在逆变器电路的输出端之间并通过谐振动作使高频放电灯点亮的谐振电路,调光电路 通过改变逆变器电路的工作频率来改变放电灯的输出电压;直流分量检测电路,用于检测放电灯的直流电压分量;以及控制运算电路,其检测直流分量检测电路的输出信号 在输出信号超过预定参考值的情况下,在每个预定周期中减少或停止对放电灯的输出,并且当输出信号中的周期性变化量达到预定值或更高时禁止保护操作。

    Information distribution apparatus
    12.
    发明授权
    Information distribution apparatus 失效
    信息发布装置

    公开(公告)号:US06862742B2

    公开(公告)日:2005-03-01

    申请号:US09141101

    申请日:1998-08-27

    摘要: An information distribution apparatus for a CATV system which apparatus is capable of transmitting an identical program directed to a plurality of set-top boxes with the use of a single communication path between a distribution control section and an information distributing section. When distribution of identical information is requested from a plurality of set-top boxes, path identification number decision unit determines an identification number of a single communication path for these set-top boxes. Distribution information transmitting unit transmits the requested distribution information to the information distributing section via the communication path with the thus-determined identification number. In the information distributing section, set-top box identifying unit identifies individual set-top boxes to which the distribution information is to be distributed, based on the identification number of the communication path used for transmission by the distribution information transmitting unit. Distribution information distributing unit distributes the distribution information to each of the identified set-top boxes.

    摘要翻译: 一种用于CATV系统的信息分配装置,该装置能够通过在分配控制部分和信息分发部分之间使用单个通信路径来发送指向多个机顶盒的相同节目。 当从多个机顶盒请求分发相同的信息时,路径识别号决定单元确定这些机顶盒的单个通信路径的标识号。 分发信息发送单元通过具有如此确定的识别号的通信路径将所请求的分发信息发送到信息分发部。 在信息分配部中,基于由分发信息发送单元进行发送的通信路径的识别号,机顶盒识别单元识别要分发分发信息的各个机顶盒。 分发信息分发单元将分发信息分配给每个所识别的机顶盒。

    Access network system
    13.
    发明授权
    Access network system 失效
    接入网络系统

    公开(公告)号:US06762998B1

    公开(公告)日:2004-07-13

    申请号:US09476447

    申请日:1999-12-30

    IPC分类号: G01R3108

    摘要: In an access network system for performing a maintenance management of an access line, a processor stores an allocation status of a bearer channel to be managed, and a system manager determines an availability status of the access line based on the allocation status. Also, the processor determines the availability status based on the allocation status and loop open/close information of a PSTN/ISDN user line. Furthermore, the system manager 25 activates a test portion based on the availability status.

    摘要翻译: 在用于执行接入线路的维护管理的接入网络系统中,处理器存储要管理的承载信道的分配状态,并且系统管理者基于分配状态来确定接入线路的可用性状态。 此外,处理器基于PSTN / ISDN用户线的分配状态和循环打开/关闭信息来确定可用性状态。 此外,系统管理器25基于可用性状态激活测试部分。

    Shoe for swash-plate type compressor
    14.
    发明授权
    Shoe for swash-plate type compressor 失效
    斜盘式压缩机鞋

    公开(公告)号:US06435047B1

    公开(公告)日:2002-08-20

    申请号:US09269580

    申请日:1999-03-26

    IPC分类号: B21D5310

    摘要: A method of manufacturing a shoe including cutting a columnar raw material to a given length to provide a disc-shaped raw material, forming on one end face of the disc-shaped raw material a spherical sliding surface which is to be disposed in sliding contact with a spherical surface on a piston, and forming a thermal sprayed layer on the other end face of the disc-shaped raw material. The thermal sprayed layer serves as a flat plate-shaped sliding surface which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.

    摘要翻译: 一种制造鞋的方法,包括将柱状原料切割成给定长度以提供圆盘状原料,在圆盘状原料的一个端面形成有与滑动接触的球形滑动面 活塞上的球形表面,并且在盘状原料的另一端面上形成热喷涂层。 热喷涂层用作与斜盘滑动接触的平板状滑动面。 与形成有烧结层的传统的鞋相比,设置有热喷涂层的鞋与耐磨性相比增加,并且可以廉价地制造。

    Stent
    15.
    发明授权
    Stent 失效
    支架

    公开(公告)号:US6027527A

    公开(公告)日:2000-02-22

    申请号:US986060

    申请日:1997-12-05

    IPC分类号: A61F2/06 A61F2/90

    摘要: A stent having a cylindrical shape includes frame-like unexpandable portions incapable of being expanded in a circumferential direction, and frame-like expandable portions capable of being expanded in the circumferential direction. The unexpandable portions and the expandable portions are alternately connected together in the circumferential direction.

    摘要翻译: 具有圆柱形状的支架包括不能在圆周方向上膨胀的框架状的不可展开部分,以及能够在圆周方向上扩张的框架状的可扩展部分。 不可膨胀部分和可膨胀部分沿圆周方向交替地连接在一起。

    Communication system and a method, to detect a power exposure of a
communication line
    16.
    发明授权
    Communication system and a method, to detect a power exposure of a communication line 失效
    通信系统和方法,用于检测通信线路的电源曝光

    公开(公告)号:US5222119A

    公开(公告)日:1993-06-22

    申请号:US778549

    申请日:1991-10-18

    申请人: Hiroyuki Asano

    发明人: Hiroyuki Asano

    CPC分类号: H04M3/30 H04B3/46 H04M1/24

    摘要: A telephone system comprises a multi-channel transmission apparatus for connecting a subscriber line to a telephone exchanger, where the transmission apparatus comprises: a subscriber interface for interfacing said subscriber line; a detecting circuit in the subscriber interface for detecting a change in a voltage on the subscriber line; and a discriminating circuit for discriminating whether the change detected by the detecting circuit is continuous or intermittent, upon discriminating the detected change in voltage as intermittent the discriminating circuit outputs a first alarm signal. The discriminating circuit may be formed of a software counter which counts a number of the intermittent signals for a predetermined period. The software counter does not require a bulky and expensive components, such as a 60 Hz filter. If the counted number is larger than a predetermined number the signal is determined to be intermittent. The first alarm signal may start a subscriber line tester which includes an AC voltage tester to measure an AC voltage on the subscriber line. If the measured AC voltage exceeds a predetermined criterion, it is determined that a power exposure has happened. This method allows a quick and correct detection of power exposure by merely adding a program into a currently provided micro processor, without requiring additional component.

    摘要翻译: 电话系统包括用于将用户线路连接到电话交换机的多信道发送装置,其中,所述发送装置包括:用于接口所述用户线路的用户接口; 用户接口中的检测电路,用于检测用户线路上的电压变化; 以及鉴别电路,用于鉴别检测电路检测到的变化是连续的还是间歇的,当识别出的电压变化作为间歇的鉴别电路输出第一报警信号时。 识别电路可以由软件计数器构成,该软件计数器在预定时间段内对间歇信号的数量进行计数。 软件计数器不需要庞大和昂贵的组件,如60 Hz滤波器。 如果计数的数量大于预定数量,则确定该信号是间歇的。 第一个报警信号可能启动一个用户线路测试仪,其中包括一个交流电压测试仪,用于测量用户线上的交流电压。 如果测量的AC电压超过预定标准,则确定发生了电力曝光。 该方法允许仅通过将程序添加到当前提供的微处理器中而不需要额外的组件来快速和正确地检测功率曝光。

    MAGNETIC CIRCUIT
    18.
    发明申请
    MAGNETIC CIRCUIT 有权
    磁电路

    公开(公告)号:US20140354385A1

    公开(公告)日:2014-12-04

    申请号:US14369772

    申请日:2013-01-21

    IPC分类号: H01F7/02

    CPC分类号: H01F7/021

    摘要: A magnetic circuit, provided with a short magnet and short magnet that are arranged in an array, and a yoke and a yoke provided so as to sandwich the short magnet and short magnet. The short magnet and short magnet, are arranged, that have a space between them that is a predetermined gap or less in the arrangement direction of the array respectively. In addition, the short magnet and short magnet are arranged so that one magnetic pole is located on the side toward one of the pair of yokes and, and the other magnetic pole is located on the side toward the other yoke.

    摘要翻译: 设置有排列成阵列的短磁铁和短磁铁的磁路和设置为夹着短磁铁和短磁铁的磁轭和磁轭。 所述短磁铁和短磁铁分别在阵列的排列方向上分别具有预定间隙或更小的间隔。 此外,短磁铁和短磁铁被布置成使得一个磁极位于一对轭铁的一侧,另一个磁极位于另一个轭的一侧。