公开(公告)号：US20140073281A1

公开(公告)日：2014-03-13

申请号：US14078462

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Bruce A. Judson ,  Cong T. Nguyen

IPC: H04B1/10

CPC classification number: H04B1/1036 ,  H03F3/195 ,  H03F2200/241 ,  H03H7/03 ,  H03H7/1775 ,  H03H11/52 ,  H04B1/109

Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.

Abstract translation: 在接收的RF输入信号的带通滤波期间，预选电路保持接收的RF输入信号的动态范围。 预选电路包括用于耦合到天线以接收接收的RF输入信号的Q缺陷无源带通滤波器。 预选电路还包括耦合到Q缺陷无源带通滤波器的Q增强电路，其中Q增强电路通过补偿带通滤波器中的电阻感应损耗来增加Q缺陷无源带通滤波器的Q值。

公开(公告)号：US20140247757A1

公开(公告)日：2014-09-04

申请号：US13782366

申请日：2013-03-01

Applicant: QUALCOMM INCORPORATED

Inventor： Roberto Rimini ,  Cong T. Nguyen ,  Peter D. Heidmann ,  Joseph Patrick Burke ,  Vladimir Aparin

IPC: H04B1/44

CPC classification number: H04B1/44 ,  H04B1/525

Abstract: Exemplary embodiments are directed to systems, devices, and methods for mitigating effects of transmit signal leakage. A transceiver may include a transmitter and a receiver. The transceiver may further include a multi-tap analog adaptive filter coupled to each of the transmitter and the receiver and configured to generate an estimated transmit leakage signal based on at least a portion of a transmit signal from the transmitter and an error signal from the receiver.

Abstract translation: 示例性实施例涉及用于减轻发射信号泄漏的影响的系统，设备和方法。 收发机可以包括发射机和接收机。 收发器还可以包括耦合到发射机和接收机中的每一个的多抽头模拟自适应滤波器，并被配置为基于来自发射机的发射信号的至少一部分和来自接收机的误差信号来产生估计的发射泄漏信号 。