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1.发明公开公开(公告)号：US20230179240A1
公开(公告)日：2023-06-08
申请号：US18104761
申请日：2023-02-01
Applicant: MEDIATEK INC.
Inventor： Jui-Lin Hsu , Hsiang-Yun Chu , Yen-Tso Chen , Jen-Hao Cheng , Wei-Hsiu Hsu , Tzu-Chin Lin , Chih-Ming Hung , Jing-Hong Conan Zhan
IPC: H04B1/04 , H01P5/10 , H03H7/42 , H04B1/30 , H04B1/3805
CPC classification number: H04B1/0483 , H01P5/10 , H03H7/42 , H04B1/30 , H04B1/3805 , H04B2001/307
Abstract: A semiconductor chip includes a first wireless communication circuit, a second wireless communication circuit, and an auxiliary path. The first wireless communication circuit includes a signal path, wherein the signal path includes a signal node. The second wireless communication circuit includes a mixer and a local oscillator (LO) buffer. The LO buffer is arranged to receive and buffer an LO signal, and is further arranged to provide the LO signal to the mixer. The auxiliary path is arranged to electrically connect the LO buffer to the signal node of the signal path, wherein the LO buffer is reused for a loop-back test function of the first wireless communication circuit through the auxiliary path.
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公开(公告)号：US11373957B2
公开(公告)日：2022-06-28
申请号：US16994764
申请日：2020-08-17
Applicant: MEDIATEK Inc.
Inventor： Wen-Sung Hsu , Tao Cheng , Nan-Cheng Chen , Che-Ya Chou , Wen-Chou Wu , Yen-Ju Lu , Chih-Ming Hung , Wei-Hsiu Hsu
IPC: H01L23/538 , H01L21/48 , H01L21/56 , H01L21/683 , H01L23/31 , H01L23/498 , H01L23/50 , H01L23/66 , H01L25/065 , H01L25/10 , H01L25/16 , H01L25/00 , H01Q1/22 , H01Q9/04 , H01L23/14 , H01L23/00 , H01Q21/06
Abstract: A semiconductor package includes a first substrate, a first layer structure, a second layer structure, a first antenna layer and an electronic component. The first antenna layer is formed on at least one of the first layer structure and the second layer structure, wherein the first antenna layer has an upper surface flush with a layer upper surface of the first layer structure or the second layer structure. The electronic component is disposed on a substrate lower surface of the first substrate and exposed from the first substrate. The first layer structure is formed between the first substrate and the second layer structure.
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公开(公告)号：US11131768B2
公开(公告)日：2021-09-28
申请号：US15712313
申请日：2017-09-22
Applicant: MediaTek Inc.
Inventor： Chih-Ming Hung , ChiaYu Lin
Abstract: Methods and apparatuses pertaining to automotive parking assistance using radar sensors are described. A processor controls a plurality of radar sensors to transmit radio frequency (RF) signals and receive reflected signals reflected by an object such that each of the radar sensors individually transmits a respective RF signal and receive a respective reflected signal reflected by the object. The processor or the radar sensor detects one or more aspects of the object based on the respective reflected signals received by the plurality of radar sensors.
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公开(公告)号：US20170219689A1
公开(公告)日：2017-08-03
申请号：US15486887
申请日：2017-04-13
Applicant: MediaTek Inc.
Inventor： Chih-Ming Hung , Khurram Muhammad
CPC classification number: G01S7/023 , G01S7/35 , G01S13/343 , G01S13/345 , G01S13/584 , G01S13/931
Abstract: Methods and apparatuses pertaining to radar interference mitigation are described. A processor associated with an apparatus may generate a plurality of wave frames such that one or more aspects of the plurality of wave frames vary from one wave frame to another wave frame of the plurality of wave frames. Each of the plurality of wave frames may respectively include a plurality of chirps. A wireless transmitter associated with the apparatus may transmit the plurality of wave frames. A wireless receiver associated with the apparatus may receive one or more reflected waves comprising at least a portion of one or more of the wave frames reflected by an object. The processor may determine a distance between the object and the apparatus, a speed of the objet, or both, based on an analysis of the one or more reflected waves.
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公开(公告)号：US20160380618A1
公开(公告)日：2016-12-29
申请号：US15125145
申请日：2015-03-13
Applicant: MEDIATEK INC.
Inventor： Ying-Tsang Lu , Chih-Ming Hung , Meng-Chang Lee
CPC classification number: H03H19/002 , H03D7/165 , H04L25/0278
Abstract: Described in embodiments herein are techniques for realizing filters having a variety of frequency responses, such as multiple pass-bands, high out-of-band rejection, without complicated designs. In accordance with an embodiment, a feedforward filter includes a first path, at least one second path and a signal combiner. The first path has a first translational filter, and employed for providing a first frequency response and generating a first output in response to an input signal based on the first frequency response. The at least one second path has a second translational filter and is coupled to the first path. The at least one second path is employed for providing a second frequency response that is different from the first frequency response to the input signal, and generating at least one second output in response to the input signal based on the second frequency response. The signal combiner is coupled to the first path and the second path, and employed for combining the first output and the at least one second output to generate a filtered signal.
Abstract translation: 在本文的实施例中描述的是用于实现具有各种频率响应的滤波器的技术，例如多个通带，高带外抑制，而没有复杂的设计。 根据实施例，前馈滤波器包括第一路径，至少一个第二路径和信号组合器。 第一路径具有第一平移滤波器，并且用于提供第一频率响应并且响应于基于第一频率响应的输入信号产生第一输出。 所述至少一个第二路径具有第二平移滤波器并耦合到第一路径。 所述至少一个第二路径用于提供不同于对输入信号的第一频率响应的第二频率响应，以及响应于基于第二频率响应的输入信号而生成至少一个第二输出。 信号组合器耦合到第一路径和第二路径，并且用于组合第一输出和至少一个第二输出以产生滤波信号。
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Patent Agency Ranking
公开(公告)号：US20160380593A1
公开(公告)日：2016-12-29
申请号：US15125148
申请日：2015-03-13
Applicant: MEDIATEK INC.
Inventor： Ying-Tsang Lu , Chih-Ming Hung , Meng-Chang Lee
CPC classification number: H03D7/1483 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0086 , H03H11/0405 , H03H11/0466 , H03H19/002
Abstract: A harmonic-rejection translational filter includes: a first path, a second path and a signal combiner. The first path has a first translational filter that is driven by a plurality of first oscillation signals, and is arranged to generate a first output signal according to an input signal. The second path has a second translation filter that is driven by a plurality of second oscillation signals that are different from the first oscillation signals in phase. The second path is coupled to the first path and arranged to generate a second output signal according to the input signal. The signal combiner is coupled to the first path and the second path, and arranged to combine the first output signal and the second output signal to SIN generate a filtered signal.
Abstract translation: 谐波抑制平移滤波器包括：第一路径，第二路径和信号组合器。 第一路径具有由多个第一振荡信号驱动的第一平移滤波器，并且被布置为根据输入信号产生第一输出信号。 第二路径具有由同相中的第一振荡信号不同的多个第二振荡信号驱动的第二平移滤波器。 第二路径被耦合到第一路径并且被布置成根据输入信号产生第二输出信号。 信号组合器耦合到第一路径和第二路径，并且被布置为将第一输出信号和第二输出信号组合以产生滤波信号。
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7.发明申请TRANSMITTER CIRCUIT, COMMUNICATION UNIT AND METHOD FOR AMPLIFYING A COMPLEX QUADRATURE SIGNAL 审中-公开发射机电路，通信单元和放大复杂四分信号的方法公开(公告)号：US20160127164A1
公开(公告)日：2016-05-05
申请号：US14923428
申请日：2015-10-26
Applicant: MEDIATEK INC.
Inventor： Khurram Muhammad , Chih-Ming Hung
CPC classification number: H04L27/2623 , H03F3/24 , H04B1/0475 , H04B2001/0408 , H04B2001/0491 , H04L27/365
Abstract: A transmitter circuit includes a frequency generation circuit configured to generate a local oscillator signal and a digital modulator configured to: receive data to be transmitted; quadrature modulate the received data to at least a first, Q, modulated value and a second, I, modulated value; examine the quadrature modulated data to determine if the first, Q, modulated value exceeds a limit, and in response thereto selectively modify the quadrature modulated values to a first modified, Q′, modulated value and a second modified, I′, modulated value thereby bringing only a value of the first modified, Q′, modulated value to within the limit. A local oscillator phase is selected in order to map the first modified, Q′, modulated value and second modified, I′, modulated value to desired quadrature values. A digital power amplifier, DPA, coupled to the digital quadrature modulator, is configured to amplify the quadrature modified modulated data.
Abstract translation: 发射机电路包括：频率产生电路，被配置为产生本地振荡器信号;以及数字调制器，被配置为：接收待传输的数据; 将接收的数据正交调制为至少第一调制值和第二调制值; 检查正交调制数据以确定第一Q调制值是否超过限制，并且响应于此，将正交调制值有选择地将正交调制值修改为第一修改后的调制值，调制值和第二修正I'调制值 仅将第一个修改后的Q'调制值的值设置在限制内。 选择本地振荡器相位以便将第一修改的Q'调制值和第二修改的I'调制值映射到期望的正交值。 耦合到数字正交调制器的数字功率放大器DPA被配置为放大正交修改的调制数据。
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公开(公告)号：US20220113374A1
公开(公告)日：2022-04-14
申请号：US17558502
申请日：2021-12-21
Applicant: MEDIATEK INC.
Inventor： Tzu-Chin Lin , Chih-Ming Hung , Jui-Lin Hsu , Chao-Ching Hung , Bao-Chi Peng
Abstract: A system includes a local oscillator (LO) signal generation circuit, a receiver (RX) circuit, and a calibration circuit. The LO signal generation circuit generates an LO signal according to a reference clock, and includes an active oscillator that generates the reference clock. The active oscillator includes at least one active component. The RX circuit generates a processed RX signal by processing an RX input signal according to the LO signal. The calibration circuit checks a signal characteristic of the processed RX signal by detecting if a calibration tone exists within a receiver bandwidth, set a frequency calibration control output in response to the calibration tone being not found in the receiver bandwidth, and output the frequency calibration control output to the LO signal generation circuit. The LO signal generation circuit adjusts an LO frequency of the LO signal in response to the frequency calibration control output.
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公开(公告)号：US11237249B2
公开(公告)日：2022-02-01
申请号：US16168853
申请日：2018-10-24
Applicant: MEDIATEK INC.
Inventor： Tzu-Chin Lin , Chih-Ming Hung , Jui-Lin Hsu , Chao-Ching Hung , Bao-Chi Peng
Abstract: A wireless system includes a local oscillator (LO) signal generation circuit, a receiver (RX) circuit, and a calibration circuit. The LO signal generation circuit generates an LO signal according to a reference clock. The LO signal generation circuit includes an active oscillator. The active oscillator generates the reference clock, wherein the active oscillator includes at least one active component, and does not include an electromechanical resonator. The RX circuit generates a down-converted RX signal by performing down-conversion upon an RX input signal according to the LO signal. The calibration circuit generates a frequency calibration control output according to a signal characteristic of the down-converted RX signal, and outputs the frequency calibration control output to the LO signal generation circuit. The LO signal generation circuit adjusts an LO frequency of the LO signal in response to the frequency calibration control output.
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公开(公告)号：US11002829B2
公开(公告)日：2021-05-11
申请号：US15486887
申请日：2017-04-13
Applicant: MediaTek Inc.
Inventor： Chih-Ming Hung , Khurram Muhammad
Abstract: Methods and apparatuses pertaining to radar interference mitigation are described. A processor associated with an apparatus may generate a plurality of wave frames such that one or more aspects of the plurality of wave frames vary from one wave frame to another wave frame of the plurality of wave frames. Each of the plurality of wave frames may respectively include a plurality of chirps. A wireless transmitter associated with the apparatus may transmit the plurality of wave frames. A wireless receiver associated with the apparatus may receive one or more reflected waves comprising at least a portion of one or more of the wave frames reflected by an object. The processor may determine a distance between the object and the apparatus, a speed of the objet, or both, based on an analysis of the one or more reflected waves.
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