发明名称 |
Circuit and method for filtering adjacent channel interferers |
摘要 |
A circuit and method for filtering adjacent channel interferers. One embodiment of an adjacent channel filtering circuit for reducing adjacent channel interference with an in-band signal, includes: (1) a radio frequency (RF) circuit configured to receive and down-convert an RF signal to a baseband signal containing an in-band signal and adjacent channel components, (2) a controlled single pole filter electrically coupled to the RF circuit and configured to reject the adjacent channel components and cause a predetermined attenuation in the in-band signal, (3) a baseband circuit coupled to the controlled single pole filter and configured to condition the baseband signal for conversion to a digital signal, and (4) a digital circuit coupled to the baseband circuit and configured to receive the digital signal and compensate for the predetermined attenuation. |
申请公布号 |
US9071319(B2) |
申请公布日期 |
2015.06.30 |
申请号 |
US201314023623 |
申请日期 |
2013.09.11 |
申请人 |
Nvidia Corporation |
发明人 |
Atalla Essam;Bellaouar Abdellatif |
分类号 |
H04B1/06;H04B7/00;H04B1/10;H04B1/12 |
主分类号 |
H04B1/06 |
代理机构 |
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代理人 |
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主权项 |
1. An adjacent channel filtering circuit for reducing adjacent channel interference with an in-band signal, comprising:
a radio frequency (RF) circuit configured to receive and down-convert an RF signal to a baseband signal containing an in-band signal and adjacent channel components; a controlled filter electrically coupled to said RF circuit and configured to reject said adjacent channel components and cause a predetermined attenuation in said in-band signal; a baseband circuit, electrically coupled to and distinct from said controlled filter, configured to perform multi-stage filtering of said baseband signal and condition said baseband signal for conversion to a digital signal; and a digital circuit coupled to said baseband circuit and configured to receive said digital signal and compensate for said predetermined attenuation. |
地址 |
Santa Clara CA US |