公开(公告)号：US06922551B1

公开(公告)日：2005-07-26

申请号：US09743642

申请日：1999-07-05

申请人： Robert Owen Bristow ,  Sven Mattisson

发明人： Robert Owen Bristow ,  Sven Mattisson

IPC分类号： H04B1/713 ,  H04B17/00 ,  H04W16/14 ,  H04B1/02

CPC分类号： H04W16/14 ,  H04B1/713

摘要： In a radio communications unit with several transceivers communicating in different frequency bands, a signal parameter of a selected channel is monitored in order to detect interference due to intermodulation products. The select channel is for example used by a long range radio communications link and the interfering channel on a short range radio link. Once the channel causing interference has been identified, transmissions on it are prevented.

摘要翻译： 在具有在不同频带中通信的多个收发器的无线电通信单元中，监视所选信道的信号参数，以便检测由于互调产物引起的干扰。 选择信道例如由远距离无线电通信链路和短距离无线电链路上的干扰信道使用。 一旦导致干扰的信道已经被识别，则防止其上的传输。

公开(公告)号：US06922449B1

公开(公告)日：2005-07-26

申请号：US09719632

申请日：1999-06-17

申请人： Robert Owen Bristow

发明人： Robert Owen Bristow

IPC分类号： H04B1/16 ,  H04B1/26 ,  H04B1/69 ,  H04B000/00

CPC分类号： H04B1/0025 ,  H04B1/0003 ,  H04B1/005 ,  H04B1/006 ,  H04B1/16 ,  H04B1/26

摘要： A radio receiver architecture is disclosed which has first and second front end circuits optimized for reception in two frequency bands. Each front end circuit includes a mixer for downconverting received signals to a respective intermediate frequency. Signals from the two front end circuits are passed to a single analog-to-digital converter. The sampling rate of the analog-to-digital converter and the intermediate frequencies are chosen such that the received signals appear at the same point in different teeth of the alias response of the analog-to-digital converter.

摘要翻译： 公开了一种无线电接收机架构，其具有针对在两个频带中接收而优化的第一和第二前端电路。 每个前端电路包括用于将接收到的信号下变频到各个中间频率的混频器。 来自两个前端电路的信号被传递到单个模拟 - 数字转换器。 选择模数转换器和中间频率的采样率，使得接收到的信号出现在模数转换器的别名响应的不同齿的同一点处。

公开(公告)号：US07313366B1

公开(公告)日：2007-12-25

申请号：US09743668

申请日：1999-07-05

申请人： Robert Owen Bristow

发明人： Robert Owen Bristow

IPC分类号： H04B1/00

CPC分类号： H04W88/02 ,  H04B7/18513 ,  H04B7/18532

摘要： There is described a radio communications system, including a unit which is able to communicate over a radio communications network such as a satellite or cellular system, and is also able to communicate with a device such as a portable handset over a short range radio link. In order to avoid potentially troublesome interference on the communications path with the communications network, the unit is able to detect the strength of signals received on the short range radio link, and alert the user if those signals are such as to be a potential source of interference.

摘要翻译： 描述了一种无线通信系统，其包括能够通过诸如卫星或蜂窝系统的无线电通信网络通信的单元，并且还能够通过短距离无线电链路与诸如便携式手持机的设备通信。 为了避免在与通信网络的通信路径上的潜在的麻烦的干扰，该单元能够检测在短距离无线电链路上接收的信号的强度，并且向用户警告这些信号是否是潜在的源 干扰。