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1. 发明授权

US09948346B2 Communication system with up-converter and digital baseband processing circuit implemented in one die separated from another die having down-converter, and related communication method thereof 有权
公开(公告)号：US09948346B2
公开(公告)日：2018-04-17
申请号：US13798127
申请日：2013-03-13
申请人： MEDIATEK INC.
发明人： Ho-Chi Huang , Paul Cheng Po Liang
IPC分类号： H04B1/38 , H04L5/16 , H04B1/40
CPC分类号： H04B1/40
摘要： 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.

2. 发明授权

US09520907B2 Methods and apparatus for envelope tracking system 有权
标题翻译：包络跟踪系统的方法和装置
公开(公告)号：US09520907B2
公开(公告)日：2016-12-13
申请号：US14181714
申请日：2014-02-16
申请人： MEDIATEK INC.
发明人： Chia-Sheng Peng , Wei-Cheng Liu , Sheng-Hong Yan , Paul Cheng Po Liang
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/0227 , H03F1/3241 , H03F1/56 , H03F3/24 , H03F3/245 , H03F2200/102 , H04B1/0458 , H04B2001/0408 , H04B2001/0425
摘要： A communication unit comprises a radio frequency, RF, transmitter comprising: a power amplifier, PA, module; an envelope tracking system operably coupled to the PA module and arranged to variably control a supply voltage for the PA module; and a load control system operably coupled to an output of the PA module and arranged to control a power amplifier output load.
摘要翻译：通信单元包括射频，RF，发射机，包括：功率放大器PA，模块; 包络跟踪系统，其可操作地耦合到所述PA模块并且布置成可变地控制所述PA模块的电源电压; 以及负载控制系统，其可操作地耦合到所述PA模块的输出并被布置成控制功率放大器的输出负载。

3. 发明授权

US09240920B2 Wireless transmitter for multi-mode concurrent transmission of signals complying with different communication standards 有权
标题翻译：用于多模并发传输符合不同通信标准的信号的无线发射机
公开(公告)号：US09240920B2
公开(公告)日：2016-01-19
申请号：US14109968
申请日：2013-12-18
申请人： MEDIATEK INC.
发明人： Ho-Chi Huang , Chun-Hsien Peng , Paul Cheng Po Liang
IPC分类号： H04L27/00 , H04L27/38 , H04L27/20
CPC分类号： H04L27/3854 , H04L27/2053
摘要： 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.
摘要翻译：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。

4. 发明授权

US10153794B2 Transmitter, communication unit and method for limiting spectral re-growth 有权
公开(公告)号：US10153794B2
公开(公告)日：2018-12-11
申请号：US15662903
申请日：2017-07-28
申请人： MediaTek, Inc.
发明人： Toru Matsuura , Paul Cheng Po Liang
IPC分类号： H04B1/04 , H04L27/36 , H04L25/03 , H03F3/24 , H03F1/32 , H04B1/00
摘要： A transmitter includes a signal generator arranged to generate a digital baseband signal representative of a signal for transmission; a digital predistortion, DPD, circuit configured to predistort the digital baseband signal; and a power amplifier is arranged to amplify the predistorted signal. The DPD circuit includes a first signal shaping circuit operably coupled to the signal generator and the DPD predistortion circuit and configured to receive the generated digital signal and apply first envelope shaping to shape the predistortion applied to at least the amplitude of the generated digital signal and produce a first DPD signal; a second signal shaping circuit operably coupled to the signal generator and an output of the DPD predistortion circuit and configured to receive and apply the second envelope shaped digital signal to the first DPD signal and produce a second envelope shaped DPD signal. A multiplier is configured to receive and multiply the digital signal and the second envelope shaped DPD signal and output a digitally predistorted signal for transmission.

5. 发明授权

US10148296B2 Transmitter, communication unit and methods for limiting spectral re-growth 有权
公开(公告)号：US10148296B2
公开(公告)日：2018-12-04
申请号：US15662848
申请日：2017-07-28
申请人： MediaTek, Inc.
发明人： Toru Matsuura , Paul Cheng Po Liang
IPC分类号： H04B1/62 , H04B1/04 , H04L27/36 , H04L25/03 , H03F3/24 , H03F1/32 , H04B1/00
摘要： A transmitter includes a signal generator arranged to generate a digital baseband signal representative of a signal for transmission; a digital predistortion, DPD, circuit configured to predistort the digital baseband signal; and a signal adjustment circuit operably coupled to the signal generator and the DPD circuit and configured to receive the generated signal and apply shaping to adjust the predistortion applied to the envelope of the generated signal.

6. 发明授权

US09634625B2 Radio frequency transmitter with extended power range and related radio frequency transmission method 有权
公开(公告)号：US09634625B2
公开(公告)日：2017-04-25
申请号：US14252795
申请日：2014-04-15
申请人： MEDIATEK INC.
发明人： Chao Lu , Chun-Hsien Peng , Paul Cheng Po Liang
IPC分类号： H03F3/24 , H03F3/21 , H03F3/45 , H03F1/02 , G11C7/22
CPC分类号： H03F3/245 , G11C7/22 , H03F1/0211 , H03F1/0266 , H03F3/211 , H03F3/45179 , H03F2200/321 , H03F2200/336 , H03F2203/45302
摘要： 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.

7. 发明申请

US20150236729A1 METHODS AND APPARATUS FOR ENVELOPE TRACKING SYSTEM 有权
标题翻译：包装跟踪系统的方法和装置
公开(公告)号：US20150236729A1
公开(公告)日：2015-08-20
申请号：US14181714
申请日：2014-02-16
申请人： MEDIATEK INC.
发明人： Chia-Sheng Peng , Wei-Cheng Liu , Sheng-Hong Yan , Paul Cheng Po Liang
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/0227 , H03F1/3241 , H03F1/56 , H03F3/24 , H03F3/245 , H03F2200/102 , H04B1/0458 , H04B2001/0408 , H04B2001/0425
摘要： A communication unit comprises a radio frequency, RF, transmitter comprising: a power amplifier, PA, module; an envelope tracking system operably coupled to the PA module and arranged to variably control a supply voltage for the PA module; and a load control system operably coupled to an output of the PA module and arranged to control a power amplifier output load.
摘要翻译：通信单元包括射频，RF，发射机，包括：功率放大器PA，模块; 包络跟踪系统，其可操作地耦合到所述PA模块并且布置成可变地控制所述PA模块的电源电压; 以及负载控制系统，其可操作地耦合到所述PA模块的输出并被布置成控制功率放大器的输出负载。

8. 发明申请

US20140119416A1 COMMUNICATION SYSTEM WITH UP-CONVERTER AND DIGITAL BASEBAND PROCESSING CIRCUIT IMPLEMENTED IN ONE DIE SEPARATED FROM ANOTHER DIE HAVING DOWN-CONVERTER, AND RELATED COMMUNICATION METHOD THEREOF 有权
标题翻译：具有上转换器和数字基带处理电路的通信系统，在具有下变频器的另一个DIE中分离的一个DIE中实现，以及相关通信方法
公开(公告)号：US20140119416A1
公开(公告)日：2014-05-01
申请号：US13798127
申请日：2013-03-13
申请人： MEDIATEK INC.
发明人： Ho-Chi Huang , Paul Cheng Po Liang
IPC分类号： H04B1/40
CPC分类号： H04B1/40
摘要： 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.
摘要翻译：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。

9. 发明申请

US20180159568A1 TRANSMITTER, COMMUNICATION UNIT AND METHOD FOR LIMITING SPECTRAL RE-GROWTH 审中-公开
公开(公告)号：US20180159568A1
公开(公告)日：2018-06-07
申请号：US15662903
申请日：2017-07-28
申请人： MediaTek, Inc.
发明人： Toru Matsuura , Paul Cheng Po Liang
IPC分类号： H04B1/04 , H04L27/36 , H04L25/03 , H03F3/24 , H03F1/32 , H04B1/00
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/129 , H03F2200/411 , H03F2200/451 , H03F2201/3233 , H04B1/006 , H04B2001/0425 , H04B2001/0433 , H04L25/03343 , H04L27/368
摘要： A transmitter includes a signal generator arranged to generate a digital baseband signal representative of a signal for transmission; a digital predistortion, DPD, circuit configured to predistort the digital baseband signal; and a power amplifier is arranged to amplify the predistorted signal. The DPD circuit includes a first signal shaping circuit operably coupled to the signal generator and the DPD predistortion circuit and configured to receive the generated digital signal and apply first envelope shaping to shape the predistortion applied to at least the amplitude of the generated digital signal and produce a first DPD signal; a second signal shaping circuit operably coupled to the signal generator and an output of the DPD predistortion circuit and configured to receive and apply the second envelope shaped digital signal to the first DPD signal and produce a second envelope shaped DPD signal. A multiplier is configured to receive and multiply the digital signal and the second envelope shaped DPD signal and output a digitally predistorted signal for transmission.

10. 发明申请

US20180159567A1 TRANSMITTER, COMMUNICATION UNIT AND METHODS FOR LIMITING SPECTRAL RE-GROWTH 审中-公开
公开(公告)号：US20180159567A1
公开(公告)日：2018-06-07
申请号：US15662848
申请日：2017-07-28
申请人： MediaTek, Inc.
发明人： Toru Matsuura , Paul Cheng Po Liang
IPC分类号： H04B1/04 , H04L27/36 , H04L25/03 , H03F3/24 , H03F1/32 , H04B1/00
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/129 , H03F2200/411 , H03F2200/451 , H03F2201/3233 , H04B1/006 , H04B2001/0425 , H04B2001/0433 , H04L25/03343 , H04L27/368
摘要： A transmitter includes a signal generator arranged to generate a digital baseband signal representative of a signal for transmission; a digital predistortion, DPD, circuit configured to predistort the digital baseband signal; and a signal adjustment circuit operably coupled to the signal generator and the DPD circuit and configured to receive the generated signal and apply shaping to adjust the predistortion applied to the envelope of the generated signal.

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