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1. 发明授权

US09337644B2 ESD protection circuit 有权
标题翻译： ESD保护电路
公开(公告)号：US09337644B2
公开(公告)日：2016-05-10
申请号：US13662851
申请日：2012-10-29
申请人： MediaTek Inc.
发明人： Bo-Shih Huang , Tsung-Ming Chen , Yuan-Hung Chung
IPC分类号： H01C7/12 , H02H1/00 , H02H1/04 , H02H3/22 , H02H9/06 , H02H3/20 , H02H9/04
CPC分类号： H02H3/20 , H02H9/046
摘要： An electrostatic discharge (ESD) protection circuit is provided. The ESD protection circuit includes an impedance device coupled between a pad and a power line and a clamp unit coupled between the pad and a ground line.
摘要翻译：提供静电放电（ESD）保护电路。 ESD保护电路包括耦合在焊盘和电源线之间的阻抗装置以及耦合在焊盘和接地线之间的夹紧单元。

2. 发明授权

US09331472B2 ESD protection circuit 有权
标题翻译： ESD保护电路
公开(公告)号：US09331472B2
公开(公告)日：2016-05-03
申请号：US14591254
申请日：2015-01-07
申请人： MediaTek Inc
发明人： Bo-Shih Huang , Tsung-Ming Chen , Yuan-Hung Chung
IPC分类号： H02H9/00 , H02H3/20 , H02H9/04 , H02H7/12 , H02H1/00 , H02H1/04 , H02H3/22
CPC分类号： H02H3/20 , H02H9/046
摘要： An electrostatic discharge (ESD) protection circuit is provided. The ESD protection circuit includes an impedance device coupled between a pad and a power line and a clamp unit coupled between the pad and a ground line, wherein no ESD current flows through the impedance device when an ESD event occurs at the pad.
摘要翻译：提供静电放电（ESD）保护电路。 ESD保护电路包括耦合在焊盘和电源线之间的阻抗装置以及耦合在焊盘和接地线之间的夹紧单元，其中当在焊盘处发生ESD事件时，ESD电流不流过阻抗器件。

3. 发明申请

US20140308899A1 MULTI-STANDARDS TRANSCEIVER 审中-公开
标题翻译：多标准收货机
公开(公告)号：US20140308899A1
公开(公告)日：2014-10-16
申请号：US14139885
申请日：2013-12-24
申请人： MEDIATEK INC.
发明人： Tsung-Ming Chen , Chia-Hsin Wu , Albert Chia-Wen Jerng , George Chien
IPC分类号： H04B1/50
CPC分类号： H04B1/50 , H04B1/0082
摘要： A multi-standards transceiver includes: a first synthesizer arranged to generate a first oscillating signal; a second synthesizer arranged to generate a second oscillating signal; a first transceiver; a second transceiver; and a multiplexer coupled to the first synthesizer and the second synthesizer; wherein when the multi-standards transceiver operates under a first frequency mode, the first transceiver is arranged to use the first oscillating signal to modulate a first analog signal and the multiplexer is arranged to output the second oscillating signal to the second transceiver so that the second transceiver uses the second oscillating signal to modulate a second analog signal.
摘要翻译：多标准收发器包括：第一合成器，被布置成产生第一振荡信号; 布置成产生第二振荡信号的第二合成器; 第一收发器; 第二收发器; 以及耦合到所述第一合成器和所述第二合成器的多路复用器; 其中当所述多标准收发器在第一频率模式下操作时，所述第一收发器被布置为使用所述第一振荡信号来调制第一模拟信号，并且所述多路复用器被布置为将所述第二振荡信号输出到所述第二收发器，收发器使用第二振荡信号来调制第二模拟信号。

4. 发明授权

US08970997B2 ESD protection circuit 有权
公开(公告)号：US08970997B2
公开(公告)日：2015-03-03
申请号：US13662851
申请日：2012-10-29
申请人： MediaTek Inc.
发明人： Bo-Shih Huang , Tsung-Ming Chen , Yuan-Hung Chung
IPC分类号： H01C7/12 , H02H1/00 , H02H1/04 , H02H3/22 , H02H9/06 , H02H3/20 , H02H9/04
摘要： An electrostatic discharge (ESD) protection circuit is provided. The ESD protection circuit includes an impedance device coupled between a pad and a power line and a clamp unit coupled between the pad and a ground line.

5. 发明公开

US20240243769A1 RADIO FREQUENCY FRONT-END CIRCUIT OF WIRELESS COMMUNICATION DEVICE 审中-公开
公开(公告)号：US20240243769A1
公开(公告)日：2024-07-18
申请号：US18404766
申请日：2024-01-04
申请人： MediaTek Inc.
发明人： Tsung-Ming Chen , Wei-Kai Hong , Ting-Wei Liang , Wei-Pang Chao , Po-Yu Chang
IPC分类号： H04B1/38 , H04B1/00
CPC分类号： H04B1/38 , H04B1/0096
摘要： A radio frequency (RF) front-end circuit of a wireless communication device is provided. The RF front-end circuit includes a receiving amplifier, a down-converter, an up-converter, a transmitting amplifier and an output driver, where the receiving amplifier and the down-converter are configured to process received signals according to a local oscillation (LO) signal, and the up-converter, the transmitting amplifier and the output driver are configured to process transmitted signals according to the LO signal. The receiving amplifier, the up-converter or the transmitting amplifier includes a transformer load. The transformer load includes a switchable inductor. When the wireless communication device operates in a first mode, the LO signal has a first frequency, and the switchable inductor has a first inductance. When the wireless communication device operates in a second mode, the LO signal has a second frequency, and the switchable inductor has a second inductance.

6. 发明授权

US11228281B2 Apparatus and method for calibrating characteristics of power amplifier in transmitter 有权
公开(公告)号：US11228281B2
公开(公告)日：2022-01-18
申请号：US16439713
申请日：2019-06-13
申请人： MEDIATEK INC.
发明人： Yu-Hsien Chang , Yu-Ming Lai , Ching-Chia Cheng , Wei-Kai Hong , Yi-Chu Chen , Tsung-Ming Chen , Shih-Chieh Yen
IPC分类号： H03F1/32 , H03F1/02 , H03F3/193 , H03F3/21
摘要： A calibration apparatus is used for calibrating characteristics of a power amplifier (PA) in a transmitter. The calibration apparatus includes an adaptive bias generator circuit that is used to track an envelope of an input signal received by control terminals of transistors of the PA and generate an adaptive bias voltage to the control terminals of the input transistors in response to the envelope of the input signal.

7. 发明申请

US20200028469A1 APPARATUS AND METHOD FOR CALIBRATING CHARACTERISTICS OF POWER AMPLIFIER IN TRANSMITTER 审中-公开
公开(公告)号：US20200028469A1
公开(公告)日：2020-01-23
申请号：US16439713
申请日：2019-06-13
申请人： MEDIATEK INC.
发明人： Yu-Hsien Chang , Yu-Ming Lai , Ching-Chia Cheng , Wei-Kai Hong , Yi-Chu Chen , Tsung-Ming Chen , Shih-Chieh Yen
IPC分类号： H03F1/02 , H03F1/32 , H03F3/21 , H03F3/193
摘要： A calibration apparatus is used for calibrating characteristics of a power amplifier (PA) in a transmitter. The calibration apparatus includes an adaptive bias generator circuit that is used to track an envelope of an input signal received by control terminals of transistors of the PA and generate an adaptive bias voltage to the control terminals of the input transistors in response to the envelope of the input signal.

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