公开(公告)号：US09525500B2

公开(公告)日：2016-12-20

申请号：US14953673

申请日：2015-11-30

Applicant: MediaTek Inc.

Inventor： Jen-Yang Liu ,  I-Cheng Tsai ,  Hsueh-Wei Chiu ,  Yuan-Hwui Chung ,  Chun-Hsien Peng

IPC: H04B17/00 ,  H04B17/29

CPC classification number: H04B17/29 ,  H04B17/0085

Abstract: A test/calibration system includes a device under test (DUT) and a calibrated device. The calibrated device is coupled to the DUT, transmits or receives a test signal to or from the DUT in response to a control signal for a test item to test, measure or calibrate functioning or performance of an internal component of the DUT.

Abstract translation: 测试/校准系统包括被测设备（DUT）和校准设备。 校准的设备耦合到DUT，响应于用于测试，测量或校准DUT的内部部件的功能或性能的测试项目的控制信号，向DUT发送或接收来自DUT的测试信号。

公开(公告)号：US20140355717A1

公开(公告)日：2014-12-04

申请号：US14252795

申请日：2014-04-15

Applicant: MEDIATEK INC.

Inventor： Chao Lu ,  Chun-Hsien Peng ,  Paul Cheng Po Liang

IPC: H04B1/04

CPC classification number: H03F3/245 ,  G11C7/22 ,  H03F1/0211 ,  H03F1/0266 ,  H03F3/211 ,  H03F3/45179 ,  H03F2200/321 ,  H03F2200/336 ,  H03F2203/45302

Abstract: A radio frequency transmitter includes a digital power amplifier and a bias control circuit. The digital power amplifier is arranged for receiving at least a radio frequency input signal, a digital amplitude control word signal and at least one bias voltage to generate a radio frequency output signal. The bias control circuit is coupled to the digital power amplifier, and is arranged for adjusting the at least one bias voltage according to a power control signal.

Abstract translation: 射频发射机包括数字功率放大器和偏置控制电路。 数字功率放大器布置成用于至少接收射频输入信号，数字幅度控制字信号和至少一个偏置电压以产生射频输出信号。 偏置控制电路耦合到数字功率放大器，并且被布置用于根据功率控制信号调整至少一个偏置电压。