公开(公告)号：US20060218616A1

公开(公告)日：2006-09-28

申请号：US11350105

申请日：2006-02-09

申请人： Marcel Schemmann ,  Venkatesh Mutalik ,  Roy Harbert ,  William Zenkus

发明人： Marcel Schemmann ,  Venkatesh Mutalik ,  Roy Harbert ,  William Zenkus

IPC分类号： H04N7/173

CPC分类号： H04B10/2575

摘要： A diagnostic and prescriptive system and method for management of a combined optical and RF cable plant system. In an exemplary embodiment the method and system uses optical receivers in a hub or headend to determine a variety of cable plant parameters such as the OMI of the received signal and automatically facilitated prescriptive service through prioritization and automatic recalibration. In another exemplary embodiment the method allows doing such signal OMI measurements in a closed loop system (that is a fully operational system). In addition, a further exemplary method and system allows storing of standard receiver calibration information such that from thereon signal OMI measurements that can be performed without signal interruption.

摘要翻译： 一种用于管理组合光和射频电缆设备系统的诊断和规定系统和方法。 在示例性实施例中，该方法和系统使用集线器或头端中的光接收器来确定各种电缆设备参数，例如接收到的信号的OMI，并通过优先级和自动重新校准自动地促进规定性服务。 在另一个示例性实施例中，该方法允许在闭环系统（即完全可操作的系统）中进行这种信号OMI测量。 此外，另外的示例性方法和系统允许存储标准接收机校准信息，使得从其上可以在没有信号中断的情况下执行信号OMI测量。

公开(公告)号：US20060165413A1

公开(公告)日：2006-07-27

申请号：US11393720

申请日：2006-03-31

申请人： Marcel Schemmann ,  Venkatesh Mutalik

发明人： Marcel Schemmann ,  Venkatesh Mutalik

IPC分类号： H04J14/00

CPC分类号： H04J14/0298 ,  H04B10/25751 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04N7/22

摘要： A hybrid fiber cable network includes multiple nodes, each of which receives a first multi-carrier return signal from multiple customers with carrier signals in a first frequency band. In a fiber-hub, one or more first multi-carrier signals are converted into a second multi-carrier signal with carrier signals in a second band. Each information signal modulates a different higher frequency carrier signal in the second signal. A multitude of second multi-carrier signals are converted into optical signals with different optical wavelengths, multiplexed onto an optical fiber, and transmitted to the head-end. The first frequency band is below 200 MHz, preferably from 5 to 50 MHz. The second frequency band is above 200 MHz, preferably between 300 and 1200 MHz to reduce crosstalk due to stimulated Raman scattering (SRS). Preferably, each second frequency band is no more than one octave wide, and more preferably, no more than one half an octave wide.

摘要翻译： 混合光纤网络包括多个节点，每个节点从第一频带中的载波信号接收来自多个客户的第一多载波返回信号。 在光纤集线器中，一个或多个第一多载波信号被转换成具有第二频带中的载波信号的第二多载波信号。 每个信息信号在第二信号中调制不同的较高频率载波信号。 多个第二多载波信号被转换成具有不同光波长的光信号，被复用到光纤上，并传输到头端。 第一频带低于200MHz，优选为5至50MHz。 第二频带高于200MHz，优选在300和1200MHz之间以减少由于受激拉曼散射（SRS）引起的串扰。 优选地，每个第二频带不超过一个八度宽，更优选地不超过一个八度宽的一半。