Diversity device
专利汇可以提供Diversity device专利检索，专利查询，专利分析的服务。并且PURPOSE:To reduce phase noise at switching and connecting and to reduce the bit error rate by selecting outputs from plural antenna systems so that each output has a prescribed amplitude or over and the phase difference with the output of a switching device is minimized. CONSTITUTION:Antenna systems 11a-11c are three systems or over and have independent output, and an antenna system 11a is selected by a switching device 12. Amplitude phase detectors 14a-14d are connected respectively to the antenna systems 11a-11c and the output terminal of the switching device 12, a reference signal of a reference oscillator 15 is inputted to generate a phase difference signal and an amplitude signal, and its output is inputted to a comparator 16. The comparator 16 controls the switching device 12 so as to select an antenna system minimizing the phase difference with the switching device 12 from the antenna systems 11b, 11c, e.g., the 11b when the amplitude signal of the switching device 12 is decreased to a reference value or below, and when the output level of the antenna system 11b does not attain to a reference value, the system is connected and switched to the other antenna system 11c.，下面是Diversity device专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 残余直流分量的测量装置 | 2020-05-11 | 905 |
| 变频补偿微波频率传递系统及方法 | 2020-05-12 | 657 |
| 一种CO-OFDM系统相位噪声优化补偿方法 | 2020-05-08 | 756 |
| 基于最大后验准则的毫米波系统双端相位噪声抑制方法 | 2020-05-11 | 566 |
| 频率基准振荡器设备和稳定频率基准信号的方法 | 2020-05-08 | 760 |
| 低通滤波器、锁相环以及雷达系统 | 2020-05-08 | 862 |
| 一种减少频率锁定时间的锁相环装置及实现方法 | 2020-05-12 | 259 |
| 一种高动态输入的MEMS陀螺带宽扩展闭环控制方法 | 2020-05-11 | 393 |
| 无线通信系统中分配相位跟踪参考信号的方法和装置 | 2020-05-12 | 214 |
| 一种量子随机数产生装置 | 2020-05-13 | 740 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
