利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.012 秒)

    Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber
    3.
    发明授权
    Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber 失效
    电信系统包括数字交换机和光信号传输光纤之间的多路复用器

    公开(公告)号：US06552832B1

    公开(公告)日：2003-04-22

    申请号：US09285027

    申请日：1999-04-01

    申请人： John D. Beierle ,  William C. G. Ortel ,  Jacob Needle

    发明人： John D. Beierle ,  William C. G. Ortel ,  Jacob Needle

    IPC分类号： H04J400

    CPC分类号： H04H20/69 ,  H04J4/005 ,  H04J14/0227 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/0282 ,  H04Q11/0005 ,  H04Q2011/0039

    摘要： A telecommunications system provides telephone services to subscriber locations over dedicated optical fibers which extend in a “star” configuration from a telephone central office. A transmultiplexer installed at the central office is connected between a digital switch and the optical fibers. The transmultiplexer has a plurality of FDM ports, each of which is connected to a respective one of the optical fibers. The transmultiplexer is connected by one or more TDM ports to the digital switch. Preferably, the transmultiplexer provides a concentrating function whereby the number of subscriber lines served by the transmultiplexer is greater than the total voice-grade channel capacity of the connection between the transmultiplexer and the digital switch.

    摘要翻译： 电信系统通过专用光纤向用户位置提供电话服务，这些专用光纤以“星形”配置从电话中心局延伸。 安装在中央办公室的多路复用器连接在数字开关和光纤之间。 多路复用器具有多个FDM端口，每个端口连接到相应的一根光纤。 多路复用器通过一个或多个TDM端口连接到数字交换机。 优选地，多路复用器提供集中功能，由此由多路复用器服务的用户线路的数量大于多路复用器和数字交换机之间的连接的总语音级信道容量。

    Multimedia distribution system using fiber optic lines
    4.
    发明授权
    Multimedia distribution system using fiber optic lines 有权
    使用光纤线路的多媒体分配系统

    公开(公告)号：US06538781B1

    公开(公告)日：2003-03-25

    申请号：US09283400

    申请日：1999-04-01

    申请人： John Beierle ,  Jacob Needle ,  Dimitrios Kokkinos

    发明人： John Beierle ,  Jacob Needle ,  Dimitrios Kokkinos

    IPC分类号： H04J1402

    CPC分类号： H04J14/0227 ,  H04B10/2503 ,  H04B10/50 ,  H04B10/60 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0228 ,  H04J14/0232 ,  H04J14/0241 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0278 ,  H04J14/0282 ,  H04J14/0298 ,  H04N7/17309 ,  H04N7/22 ,  H04Q11/0005 ,  H04Q2011/0039

    摘要： A system for distributing multimedia information from a central office to a plurality of customer's premises each interconnected to the central office with a dedicated optical fiber includes a switch for transmitting a plurality of optical bands from the central office to each of the subscriber premises. The switch, being located in the central office and controlled by selection signals provided to or by the central office, selects a subset of first signals, either electrical or optical, and blocks others of the signals that are not contained within the subset so that the customer receives only the signals subscribed to by the customer. Each customer's premises has a receiver, coupled to the corresponding dedicated fiber, to detect the subset desired by the customer. Moreover, the system is arranged to transmit customer-specific signals in a downstream direction to the receiver, with each receiver being arranged to propagate upstream signals which are the counterparts to the customer-specific signals.

    摘要翻译： 一种用于将多媒体信息从中心局分发到多个用户的房屋的系统，每个客厅的房屋都与专用光纤互连到中心局，包括用于从多个光学频带从中心局向每个用户房屋发送的交换机。 位于中心局并由中央局提供的选择信号控制的开关选择电或光学的第一信号的子集，并且阻止不包含在子集内的其它信号，使得 客户仅接收客户订购的信号。 每个客户的房屋具有耦合到相应的专用光纤的接收器，以检测客户所期望的子集。 此外，该系统被布置成将下游方向的客户特定信号发送到接收机，其中每个接收机布置成传播作为客户特定信号的对应物的上行信号。