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公开(公告)号：US11693089B2
公开(公告)日：2023-07-04
申请号：US17558502
申请日：2021-12-21
申请人： MEDIATEK INC.
发明人： Tzu-Chin Lin , Chih-Ming Hung , Jui-Lin Hsu , Chao-Ching Hung , Bao-Chi Peng
CPC分类号： G01S7/4021 , G01S7/4008 , G01S7/4056 , G01S13/0209 , G01S13/88 , H03J7/04 , H03J7/065 , H03L7/183 , H04B17/21
摘要： 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：US10205466B2
公开(公告)日：2019-02-12
申请号：US15830000
申请日：2017-12-04
申请人： MEDIATEK INC.
发明人： Qiang Zhou , Hua Wang , Yun-Shiang Shu , Bao-Chi Peng
摘要： An electronic device has a transmit circuit and a processing circuit. The processing circuit outputs a first portion of compressive sensing (CS) samples corresponding to a signal segment to another electronic device via the transmit circuit, and selectively outputs a second portion of the CS samples corresponding to the signal segment to another electronic device via the transmit circuit according to a response of another electronic device. In this way, a balance between the compression ratio and the reconstruction quality/speed can be achieved. Moreover, the signal reconstruction performed at the processing circuit may employ a multi-resolution/multi-scale reconstruction scheme to achieve a balance between the dictionary size and the reconstruction quality/speed, and/or may employ a multi-stage reconstruction scheme to achieve a balance between the reconstruction algorithm control setting and the reconstruction quality/speed. In addition, dictionary weighting, online dictionary update, and/or point constraints may be used to improve the reconstruction quality.
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公开(公告)号：US09768984B2
公开(公告)日：2017-09-19
申请号：US14990001
申请日：2016-01-07
申请人： MediaTek, Inc.
发明人： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC分类号： H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
摘要： An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
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公开(公告)号：US20170104613A1
公开(公告)日：2017-04-13
申请号：US15385436
申请日：2016-12-20
申请人： MediaTek, Inc.
发明人： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC分类号： H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
摘要： An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
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5.发明申请公开(公告)号：US20160261436A1
公开(公告)日：2016-09-08
申请号：US14990001
申请日：2016-01-07
申请人： MediaTek, Inc.
发明人： Balachander Narasimhan , Charles Chien , Qiang Zhou , Chih-Yuan Lin , Cheng-Chou Zhan , Bao-Chi Peng
CPC分类号： H04L25/03019 , G06K7/10118 , G06K7/10138 , G06K19/07 , G06K19/0723 , H04B1/00 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04L1/203 , H04W4/80
摘要： An electronic device for a wireless communication system is described. The electronic device comprises: a receiver configured to receive a modulated signal on a communication channel; and a processor, coupled to the receiver and configured to: process the received modulated signal; identify a communication channel characteristic based on the processed received modulated signal; select an equalizer having a first set of equalization coefficients based on the identified communication channel characteristic, wherein the first set of equalization coefficients is selected from a plurality of equalization coefficients, each of the plurality of equalization coefficients being associated with different communication channel characteristics; equalize the processed received modulated signal on the communication channel using the selected equalizer; and detect the equalized received modulated signal.
摘要翻译： 描述了一种用于无线通信系统的电子设备。 该电子设备包括：被配置为在通信信道上接收调制信号的接收机; 以及处理器，耦合到所述接收器并且被配置为：处理所接收的调制信号; 基于经处理的接收调制信号识别通信信道特性; 基于所识别的通信信道特性，选择具有第一组均衡系数的均衡器，其中，从多个均衡系数中选择所述第一组均衡系数，所述多个均衡系数中的每一个均与不同的通信信道特性相关联; 使用所选择的均衡器对通信信道上的经处理的接收调制信号进行均衡; 并检测均衡的接收调制信号。
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公开(公告)号：US20230216620A1
公开(公告)日：2023-07-06
申请号：US18091532
申请日：2022-12-30
申请人： MEDIATEK INC.
发明人： Tun-Ping Huang , Jiaxian Pan , Bao-Chi Peng , Fei Xu , Yaochao Liu , Wei-Jen Chen , Chong-You Lee , Yabo Li , Wei Yu Lai
CPC分类号： H04L5/001 , H04L5/0051 , H04W24/10 , H04W48/20
摘要： In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, a configuration specifying an initial aggregated bandwidth W0 carried on C0 component carriers on which a reception unit (RXU) of the UE is to receive signals. The UE determines a total bandwidth WTOT on which the UE is capable of receiving signals. The UE determines, based on WTOT and W0, an initial hardware limit of Q0′ RXUs that the UE is allowed to activate concurrently. The UE determines an adjusted aggregated bandwidth W1 carried on C1 component carriers on which an RXU of the UE is to receive signals based on a channel condition between the UE and the base station.
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公开(公告)号：US20190339362A1
公开(公告)日：2019-11-07
申请号：US16402173
申请日：2019-05-02
申请人： MEDIATEK INC.
发明人： Po-Chung Hsiao , Bao-Chi Peng , Li-Ming Wei
摘要： An object detection method includes: obtaining sensor detection inputs generated at different positions and different timestamps for a swept area of object detection, where each of the sensor detection input is generated at one of the different locations and one of the different timestamps; collecting spatio-temporal data according to the sensor detection inputs; stitching the spatio-temporal data to generate a spatio-temporal image; performing signature extraction upon the spatio-temporal image to generate a signature extraction result; and identifying a contour of the swept area according to the signature extraction result.
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公开(公告)号：US20180183461A1
公开(公告)日：2018-06-28
申请号：US15830000
申请日：2017-12-04
申请人： MEDIATEK INC.
发明人： Qiang Zhou , Hua Wang , Yun-Shiang Shu , Bao-Chi Peng
CPC分类号： H03M7/3088 , A61B5/0002 , A61B5/0024 , A61B5/021 , A61B5/0261 , A61B5/0402 , A61B5/6802 , A61B5/7232 , A61B2503/10 , H03M7/3062
摘要： An electronic device has a transmit circuit and a processing circuit. The processing circuit outputs a first portion of compressive sensing (CS) samples corresponding to a signal segment to another electronic device via the transmit circuit, and selectively outputs a second portion of the CS samples corresponding to the signal segment to another electronic device via the transmit circuit according to a response of another electronic device. In this way, a balance between the compression ratio and the reconstruction quality/speed can be achieved. Moreover, the signal reconstruction performed at the processing circuit may employ a multi-resolution/multi-scale reconstruction scheme to achieve a balance between the dictionary size and the reconstruction quality/speed, and/or may employ a multi-stage reconstruction scheme to achieve a balance between the reconstruction algorithm control setting and the reconstruction quality/speed. In addition, dictionary weighting, online dictionary update, and/or point constraints may be used to improve the reconstruction quality.
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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
申请人： MEDIATEK INC.
发明人： Tzu-Chin Lin , Chih-Ming Hung , Jui-Lin Hsu , Chao-Ching Hung , Bao-Chi Peng
摘要： 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
申请人： MEDIATEK INC.
发明人： Tzu-Chin Lin , Chih-Ming Hung , Jui-Lin Hsu , Chao-Ching Hung , Bao-Chi Peng
摘要： 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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