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1. 发明授权

US5949988A Prediction system for RF power distribution 失效
标题翻译：射频功率分配预测系统
公开(公告)号：US5949988A
公开(公告)日：1999-09-07
申请号：US838221
申请日：1997-04-03
申请人： Farid Feisullin , Bruce Naylor , Ajay Raukumar , Lois Rogers
发明人： Farid Feisullin , Bruce Naylor , Ajay Raukumar , Lois Rogers
IPC分类号： H04B17/00 , H04W16/18 , G06F17/50
CPC分类号： H04W16/18 , H04B17/0082 , H04B17/391
摘要： A method for simulating RF energy distribution comprises obtaining a binary tree representation of a geometric environment in three-dimensions and forming a 3-D geometric database model therefrom, obtaining one or more specified receive locations within the 3-D geometric database model where RF energy distribution is desirable, simulating the propagation of an RF signal within the geometric database model, the RF signal being represented as a beam having magnitude and direction, the propagation including querying the database model to trace the beam in the geometric environment; and, determining one or more intersections of the traced beam with one or more receive locations to determine RF energy distribution at the receive locations.
摘要翻译：用于模拟RF能量分配的方法包括三维获得几何环境的二叉树表示并从其形成三维几何数据库模型，获得三维几何数据库模型内的一个或多个指定的接收位置，其中RF能量分布是期望的，模拟在几何数据库模型内的RF信号的传播，RF信号被表示为具有幅度和方向的波束，传播包括查询数据库模型以在几何环境中跟踪波束; 以及确定跟踪的波束的一个或多个交叉点与一个或多个接收位置，以确定接收位置处的RF能量分布。

2. 发明授权

US5828946A CATV-based wireless communications scheme 失效
标题翻译：基于CATV的无线通信方案
公开(公告)号：US5828946A
公开(公告)日：1998-10-27
申请号：US755508
申请日：1996-11-22
申请人： Farid Feisullin , George P. Vella-Coleiro
发明人： Farid Feisullin , George P. Vella-Coleiro
IPC分类号： H04H60/97 , H04L12/28 , H04W88/08 , H04N7/173
CPC分类号： H04H60/97 , H04L12/2801 , H04W88/085
摘要： Radio frequency (RF) mobile telephone communications signals are converted to cable television (CATV) frequencies for transmission over existing CATV infrastructure. In the upstream path (i.e., from one or more mobile telephones to a base station), multiple receivers (called remote converters) receive and convert RF signals to cable signals. The cable signals from different receivers are combined by a remote cable node and transmitted over tie cable network to tie base station. In order to reduce noise in the combined cable signal, only those remote converters that receive RF signals of sufficient power level will contribute cable signals to the combined signal. This scheme enables the communications network to be configured with a greater number of relatively inexpensive, low-power remote converters for each remote cable node while still maintaining signal integrity.
摘要翻译：射频（RF）移动电话通信信号被转换成有线电视（CATV）频率，以便在现有CATV基础设施上传输。在上游路径（即，从一个或多个移动电话到基站）中，多个接收机（称为远程转换器）接收并将RF信号转换成电缆信号。来自不同接收机的电缆信号由远程电缆节点组合，并通过有线网络传输以连接基站。为了降低组合电缆信号中的噪声，只有接收足够功率电平的RF信号的那些遥控转换器才能将电缆信号提供给组合信号。该方案使通信网络能够为每个远程电缆节点配置更多数量相对便宜的低功率远程转换器，同时仍保持信号完整性。

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