公开(公告)号：US07162395B1

公开(公告)日：2007-01-09

申请号：US11232003

申请日：2005-09-22

申请人： Kevin Holmes ,  William A. Street

发明人： Kevin Holmes ,  William A. Street

IPC分类号： G06F15/00

CPC分类号： H01Q1/22 ,  H01Q1/2275 ,  H04B17/23

摘要： A remote tester for a radio frequency beacon includes a plug-in module insertable into a cooperating slot in a handheld computing device so as to communicate data between the module and the computing device, wherein the module includes an antenna, at least one radio frequency receiver cooperating with the antenna so as to receive radio frequency signals from the beacon, a processor cooperating with the receiver, and a host interface for coupling in the slot with the computing device for data interchange between the processor in the module and a processor in the computing device.

摘要翻译： 用于无线电频率信标的远程测试器包括可插入手持式计算设备中的协作槽中的插件模块，以便在模块和计算设备之间传送数据，其中模块包括天线，至少一个射频接收器 与天线协作以便接收来自信标的射频信号，与接收机协同工作的处理器以及用于在时隙中与计算装置耦合的主机接口，用于模块中的处理器与计算机中的处理器之间的数据交换 设备。

公开(公告)号：US06992623B2

公开(公告)日：2006-01-31

申请号：US10996391

申请日：2004-11-26

申请人： William A. Street

发明人： William A. Street

IPC分类号： G01S1/00 ,  G01S1/08

CPC分类号： G01S5/0226 ,  G01S1/68

摘要： A search and rescue beacon includes a main transmitter transmitting a Cospas-Sarsat signal at a main frequency and an auxiliary homing transmitter transmitting a homing signal at a homing frequency close to the main frequency. Advantageously both the Cospas-Sarsat signal and the homing signal are generated by a single synthesizer switching between a main Cospas-Sarsat burst transmission and a continuous homing frequency transmission of the homing signal. The Cospas-Sarsat signal is advantageously transmitted at a higher power than the homing signal. The single synthesizer may use a single amplifier chain. The single synthesizer and amplifier chain may use a single antenna.

摘要翻译： 搜索和救援信标包括以主频率发送Cospas-Sarsat信号的主发射机和以接近主频率的归属频率发送归属信号的辅助归属发射机。 有利的是，Cospas-Sarsat信号和归巢信号由单个合成器在主要Cospas-Sarsat突发传输和归属信号的连续归巢频率传输之间切换产生。 Cospas-Sarsat信号有利地以比归巢信号更高的功率传输。 单个合成器可以使用单个放大器链。 单个合成器和放大器链可以使用单个天线。