公开(公告)号：US20130266102A1

公开(公告)日：2013-10-10

申请号：US13798241

申请日：2013-03-13

Applicant: MEDIATEK INC.

Inventor： Sheng-Hong Yan ,  Sheng-Hao Chen ,  Cheng-Po Liang ,  Jen-Che Tsai

IPC: H04B1/10

CPC classification number: H04B1/1081 ,  H04B1/10 ,  H04B1/123 ,  H04B17/11

Abstract: A radio frequency (RF) receiver includes a digital tuning engine; I-path and Q-path analog filters, tuned by the digital tuning engine; and a digital compensation circuit. The digital tuning engine executes a RC (resistor-capacitor) time constant calibration to adjust respective cut-off frequencies of the I-path analog filter and the Q-path analog filter. The digital tuning engine executes a filter mismatch calibration to match the I-path analog filter and the Q-path analog filter. The digital tuning engine executes a filter residual mismatch calibration to match an I-path response from the I-path analog filter to the digital compensation circuit and a Q-path response from the Q-path analog filter to the digital compensation circuit.

Abstract translation: 射频（RF）接收机包括数字调谐引擎; I路径和Q路径模拟滤波器，由数字调谐引擎调谐; 和数字补偿电路。 数字调谐引擎执行RC（电阻 - 电容）时间常数校准，以调整I路径模拟滤波器和Q路径模拟滤波器的相应截止频率。 数字调谐引擎执行滤波器失配校准，以匹配I路径模拟滤波器和Q路径模拟滤波器。 数字调谐引擎执行滤波器残余失配校准，以匹配从I路径模拟滤波器到数字补偿电路的I路径响应以及从Q路径模拟滤波器到数字补偿电路的Q路径响应。

公开(公告)号：US10666341B2

公开(公告)日：2020-05-26

申请号：US15893885

申请日：2018-02-12

Applicant: MEDIATEK INC.

Inventor： Chiou-Wei Tsai ,  Guo-Hao Gau ,  Cheng-Po Liang ,  Xiu-Sheng Li

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/0404 ,  H04B7/08 ,  H04B15/00

Abstract: A wireless communication device including a controller and a non-transitory machine-readable storage medium operatively coupled to the controller is provided. The controller executes program code stored in the non-transitory machine-readable storage medium to perform operations including: transmitting or receiving wireless signals by sweeping beams in a non-sequential order.