Method and apparatus for spectral containment over telephone service lines
    1.
    发明授权
    Method and apparatus for spectral containment over telephone service lines 有权
    用于通过电话服务线路进行频谱抑制的方法和装置

    公开(公告)号:US06711260B1

    公开(公告)日:2004-03-23

    申请号:US09376485

    申请日:1999-08-18

    IPC分类号: H04M100

    CPC分类号: H04M11/062 H04M3/007

    摘要: A filter passing only desired frequencies is selected according to a desired level of service for copper lines. At a point of access between a loop plant and Central Office, the filter is interposed in series over a telephone service line to provide spectral containment by restricting the frequencies of transmission passing along the line. The filter is preferably mounted within a 6-pin module used in a protector block at the Central Office or remote terminal facility, interfaces with a 5-pin module, or is placed upstream or downstream of a protector block such that it does not interfere with the operation thereof. Service is activated, and the spectral containment apparatus prevents the transmission of unexpected or unintended services over the line.

    摘要翻译: 根据铜线的所需服务水平,选择仅传送所需频率的滤波器。 在环路设备和中心局之间的接入点,滤波器通过电话业务线串联插入,以通过限制沿着线路的传输频率来提供频谱容纳。 过滤器最好安装在中央办公室或远程终端设备的保护块中使用的6针模块中,与5针模块相连,或者放置在保护块的上游或下游,使其不干扰 其操作。 服务被激活,并且频谱抑制装置防止在线上传输意外或非预期的服务。

    Benzopyran class III antiarrhythmic agents
    4.
    发明授权
    Benzopyran class III antiarrhythmic agents 失效
    BENZOPYRAN第三类抗生素代谢物

    公开(公告)号:US5240943A

    公开(公告)日:1993-08-31

    申请号:US810582

    申请日:1991-12-19

    CPC分类号: C07D405/06 C07D405/14

    摘要: The present invention relates to compounds of the formula ##STR1## or a pharmaceutically acceptable salt thereof; wherein n is 0, 1 or 2;wherein R is H or lower alkyl of 1 to 6 carbon atoms;wherein X is selected from the group consisting of hydrogen, methane sulfonamide, nitro, cyano, imidazolyl, alkoxy of 1 to 6 carbon atoms and hydroxy; andwherein Ar is selected from the group consisting of pyridinyl, tetrahydronaphthalenyl, benzofuranyl, and Ph--CH.dbd.CH-- and phenyl all optionally substituted by methane sulfonamide, nitro, cyano, or imidazolyl with the proviso that when n is 1, Ar is other then phenyl;pharmaceutical compositions containing these compounds and a method for treating cardiac arrhythmias in mammals by administering the compositions.

    摘要翻译: 本发明涉及式IMA的化合物或其药学上可接受的盐; 其中n为0,1或2; 其中R是H或1至6个碳原子的低级烷基; 其中X选自氢,甲磺酰胺,硝基,氰基,咪唑基,1至6个碳原子的烷氧基和羟基; 并且其中Ar选自吡啶基,四氢萘基,苯并呋喃基和Ph-CH = CH-,以及全部由甲磺酰胺,硝基,氰基或咪唑基取代的苯基,条件是当n为1时,Ar为其它 然后苯基; 含有这些化合物的药物组合物和通过施用组合物治疗哺乳动物心脏心律失常的方法。

    Method and apparatus for spectral containment over telephone service lines
    6.
    发明授权
    Method and apparatus for spectral containment over telephone service lines 有权
    用于通过电话服务线路进行频谱抑制的方法和装置

    公开(公告)号:US08144852B2

    公开(公告)日:2012-03-27

    申请号:US11956994

    申请日:2007-12-14

    IPC分类号: H04M1/00 H04M9/00

    CPC分类号: H04M11/062 H04M3/007

    摘要: A service to a user is prevented by providing, to the user, at least one communication link used to provide multiple services to the user. The plurality of services are activated over the at least one communication link. Transmission for the prevented service is prevented based on at least one characteristic of the at least one communication link over which the prevented service would be provided.

    摘要翻译: 通过向用户提供用于向用户提供多个服务的至少一个通信链路来防止对用户的服务。 多个服务通过至少一个通信链路被激活。 基于将提供预防服务的至少一个通信链路的至少一个特性来防止用于防止服务的传输。

    Method and apparatus for spectral containment over telephone service lines
    7.
    发明授权
    Method and apparatus for spectral containment over telephone service lines 失效
    用于通过电话服务线路进行频谱抑制的方法和装置

    公开(公告)号:US07020275B2

    公开(公告)日:2006-03-28

    申请号:US10732230

    申请日:2003-12-11

    IPC分类号: H04M1/00 H04M9/00

    CPC分类号: H04M11/062 H04M3/007

    摘要: A filter passing only desired frequencies is selected according to a desired level of service for copper lines. At a point of access between a loop plant and Central Office, the filter is interposed in series over a telephone service line to provide spectral containment by restricting the frequencies of transmission passing along the line. The filter is preferably mounted within a 5-pin module used in a protector block at the Central Office or remote terminal facility, interfaces with a 5-pin module, or is placed upstream or downstream of a protector block such that it does not interfere with the operation thereof. Service is activated, and the spectral containment apparatus prevents the transmission of unexpected or unintended services over the line.

    摘要翻译: 根据铜线的所需服务水平,选择仅传送所需频率的滤波器。 在环路设备和中心局之间的接入点,滤波器通过电话业务线串联插入,以通过限制沿着线路的传输频率来提供频谱容纳。 过滤器最好安装在中央办公室或远程终端设施的保护块中使用的5针模块中,与5针模块接口,或者放置在保护块的上游或下游,使其不会干扰 其操作。 服务被激活,并且频谱抑制装置防止在线上传输意外或非预期的服务。

    Method for facing a substrate
    8.
    发明授权
    Method for facing a substrate 失效
    面对基板的方法

    公开(公告)号:US06470558B1

    公开(公告)日:2002-10-29

    申请号:US08722260

    申请日:1996-12-17

    IPC分类号: B22D1908

    摘要: A method of facing a substrate comprises the steps of first welding a body of a hard facing material to the substrate and then filling a space around the body with a molten metal. The method can be used in the hard facing of metal components with, for example, hard facing materials such as tungsten carbide. The substrate can comprise a metal surface, which can, for example, be the surface of any suitable component, tool, or implement subject to wear in use. The method is particularly suitable for hard facing the wear surfaces of components for use in drill strings in down-hole drilling technology, for example, drill stabilizers.

    摘要翻译: 面对衬底的方法包括以下步骤:首先将硬质材料的主体焊接到衬底,然后用熔融金属填充身体周围的空间。 该方法可以用于例如硬质材料如碳化钨的金属部件的硬面。 基底可以包括金属表面,其可以例如是在使用中经受磨损的任何合适的部件,工具或工具的表面。 该方法特别适用于在井下钻井技术(例如钻井稳定器)中用于钻柱中的部件的磨损表面。

    Data transmission system with reduced error propagation
    10.
    发明授权
    Data transmission system with reduced error propagation 失效
    具有减少误差传播的数据传输系统

    公开(公告)号:US5353310A

    公开(公告)日:1994-10-04

    申请号:US971380

    申请日:1992-11-04

    摘要: For avoiding error propagation as a result of decision feedback equalization, the data to be transmitted are coded with a coder 2 which has a transfer function substantially inverse to the transfer function of the channel 4. Consequently, instantaneous decisions about the received symbol may be made at the receiver 6 without intersymbol interference causing a disturbance. If the channel transfer function differs from the transfer function of the precoder 2, intersymbol interference will again occur, so that the symbol error rate will increase. In order to restrict this increase of the symbol error rate as much as possible, the receiver comprises a cascaded circuit of an adaptive filter 18 which has an inverse transfer function to that of the channel and a decoder 21 which has an inverse transfer function to that of the precoder 2.

    摘要翻译: 为了避免作为判决反馈均衡的结果的错误传播,要发送的数据用编码器2编码,编码器2具有与信道4的传递函数基本相反的传递函数。因此,可以对接收到的符号进行即时判定 在接收机6处没有造成干扰的符号间干扰。 如果信道传递函数与预编码器2的传递函数不同,则会发生符号间干扰,使得符号错误率将增加。 为了尽可能地限制符号错误率的这种增加,接收机包括自适应滤波器18的级联电路,其具有与信道的反向传递函数和具有与该信道相反的传递函数的解码器21 的预编码器2。