公开(公告)号：US09240920B2

公开(公告)日：2016-01-19

申请号：US14109968

申请日：2013-12-18

Applicant: MEDIATEK INC.

Inventor： Ho-Chi Huang ,  Chun-Hsien Peng ,  Paul Cheng Po Liang

IPC: H04L27/00 ,  H04L27/38 ,  H04L27/20

CPC classification number: H04L27/3854 ,  H04L27/2053

Abstract: A wireless transmitter has a digital baseband module and a radio-frequency (RF) transmitter. The digital baseband module generates a multi-mode modulated signal by using a plurality of digital synthesizers. The RF transmitter has a frequency synthesizer and a digital power amplifier (DPA). The frequency synthesizer generates an oscillation signal with an RF carrier frequency. The DPA generates a multi-standard RF signal according to the multi-mode modulated signal and the oscillation signal.

Abstract translation: 无线发射机具有数字基带模块和射频（RF）发射机。 数字基带模块通过使用多个数字合成器来产生多模调制信号。 RF发射机具有频率合成器和数字功率放大器（DPA）。 频率合成器产生具有RF载波频率的振荡信号。 DPA根据多模调制信号和振荡信号产生多标准RF信号。

公开(公告)号：US20140119416A1

公开(公告)日：2014-05-01

申请号：US13798127

申请日：2013-03-13

Applicant: MEDIATEK INC.

Inventor： Ho-Chi Huang ,  Paul Cheng Po Liang

IPC: H04B1/40

CPC classification number: H04B1/40

Abstract: One communication system includes a first die, a second die and a front-end circuit. The first die has an up-converter and a digital baseband (DBB) processing circuit. The second die has a down-converter. The front-end circuit couples an antenna to the first and second dies. Another exemplary communication system includes a first die, a second die and a front-end circuit. The first die performs digital baseband (DBB) processing, and generates a first signal with a higher frequency according to a second signal, wherein the second signal is derived from an output signal of the DBB processing. The second die generates a third signal with a lower frequency according to a fourth signal. The front-end circuit couples the first signal from the first die to an antenna and couples the fourth signal from the antenna to the second die.

Abstract translation: 一个通信系统包括第一管芯，第二管芯和前端回路。 第一个芯片具有上变频器和数字基带（DBB）处理电路。 第二个模具有一个下变频器。 前端电路将天线耦合到第一和第二裸片。 另一示例性通信系统包括第一管芯，第二管芯和前端回路。 第一芯片执行数字基带（DBB）处理，并且根据第二信号产生具有较高频率的第一信号，其中第二信号是从DBB处理的输出信号导出的。 第二模具根据第四信号产生具有较低频率的第三信号。 前端电路将来自第一管芯的第一信号耦合到天线，并将第四信号从天线耦合到第二管芯。