| 发明名称 | Circuits and methods of low-frequency noise filtering | ||
| 摘要 | A circuit includes an input terminal for receiving a radio frequency (RF) signal and a noise mitigation circuit coupled to the input terminal. The noise mitigation circuit is configured to detect a low-frequency noise signature in the RF signal and to automatically adjust an attenuation network to filter low-frequency noise from the RF signal in response to detecting the low-frequency noise signature. | ||
| 申请公布号 | US8831521(B2) | 申请公布日期 | 2014.09.09 |
| 申请号 | US201012975334 | 申请日期 | 2010.12.21 |
| 申请人 | Silicon Laboratories Inc. | 发明人 | Strickland Ken A.;May Mark W.;Haban Scott Thomas |
| 分类号 | H04B1/00;H04B1/10 | 主分类号 | H04B1/00 |
| 代理机构 | Cesari & Reed, LLP | 代理人 | Cesari & Reed, LLP ;Reed R. Michael |
| 主权项 | 1. A circuit comprising: an input terminal for receiving a radio frequency (RF) signal; and a noise mitigation circuit coupled to the input terminal, the noise mitigation circuit configured to determine a count of a number of times the RF signal crosses above a threshold and crosses below the threshold, to detect a low-frequency noise signature in the RF signal based on the count, and to automatically adjust an attenuation network to filter low-frequency noise from the RF signal in response to detecting the low-frequency noise signature. | ||
| 地址 | Austin TX US | ||