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公开(公告)号：US20160126892A1
公开(公告)日：2016-05-05
申请号：US14919847
申请日：2015-10-22
Applicant: MEDIATEK Inc.
Inventor： Yen Lin Huang , Hsiang-Hui Chang , Hsin-Hung Chen
CPC classification number: H03C3/20 , H02M3/07 , H03B5/1212 , H03B5/124 , H03B5/1265 , H03C3/0925 , H03C3/0941 , H03C3/0958 , H03L7/08 , H03L7/0802 , H03L7/087 , H03L7/091 , H03L7/093 , H03L7/099 , H03L7/104 , H03L7/1976 , H03L2207/06
Abstract: A modulation circuit includes a phase locked loop (PLL) circuit, a scalar circuit and a sigma-delta modulator. The PLL circuit is for generating an output oscillating signal in response to a reference signal, a first control signal and a second control signal. The scalar circuit is for generating the first control signal in response to modulating data to control frequency deviation of the output oscillating signal, wherein the first control signal is in a digital form. The sigma-delta modulator is for generating the second control signal according to the modulating data to modulate a divider value of a frequency divider of the PLL circuit.
Abstract translation: 调制电路包括锁相环（PLL）电路，标量电路和Σ-Δ调制器。 PLL电路用于响应于参考信号，第一控制信号和第二控制信号产生输出振荡信号。 标量电路用于响应于调制数据产生第一控制信号以控制输出振荡信号的频率偏差，其中第一控制信号是数字形式。 Σ-Δ调制器用于根据调制数据产生第二控制信号，以调制PLL电路的分频器的分频值。
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公开(公告)号：US20130188675A1
公开(公告)日：2013-07-25
申请号：US13744385
申请日：2013-01-17
Applicant: MEDIATEK INC.
Inventor： Hsin-Hung Chen , Hsiang-Hui Chang , Dimitris Nalbantis , Bernard Mark Tenbroek
IPC: H04B17/00
Abstract: A communication device with a power detection scheme is disclosed. The communication device includes a transmitter for transmitting an RF signal, a demodulator for demodulating the RF signal by utilizing a phase-modulated (PM) signal provided from the transmitter to generate a demodulated signal, a loopback circuit coupled between the transmitter and the demodulator for transmitting the RF signal and the PM signal from the transmitter to the demodulator when the power detection scheme is enabled, and a power detector for detecting power of the demodulated signal.
Abstract translation: 公开了具有功率检测方案的通信设备。 通信设备包括用于发送RF信号的发射机，用于通过利用从发射机提供的相位调制（PM）信号来解调RF信号以产生解调信号的解调器，耦合在发射机和解调器之间的环回电路， 当功率检测方案被使能时，将RF信号和PM信号从发射机发送到解调器;以及功率检测器，用于检测解调信号的功率。
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公开(公告)号：US11929767B2
公开(公告)日：2024-03-12
申请号：US17888475
申请日：2022-08-16
Applicant: MEDIATEK INC.
Inventor： Chieh-Hsun Hsiao , Ming-Chou Wu , Wen-Chang Lee , Narayanan Baskaran , Wei-Hsin Tseng , Jenwei Ko , Po-Sen Tseng , Hsin-Hung Chen , Chih-Yuan Lin , Caiyi Wang
IPC: H04W52/52 , H04B1/00 , H04B17/345
CPC classification number: H04B1/0057
Abstract: A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.
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4.发明申请公开(公告)号：US20200287574A1
公开(公告)日：2020-09-10
申请号：US16776513
申请日：2020-01-30
Applicant: MEDIATEK INC.
Inventor： Chieh-Hsun Hsiao , Ming-Chou Wu , Wen-Chang Lee , Narayanan Baskaran , Wei-Hsin Tseng , Jenwei Ko , Po-Sen Tseng , Hsin-Hung Chen , Chih-Yuan Lin , Caiyi Wang
IPC: H04B1/00
Abstract: A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.
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公开(公告)号：US09686103B2
公开(公告)日：2017-06-20
申请号：US13795130
申请日：2013-03-12
Applicant: MEDIATEK Inc.
Inventor： Kuo-Hao Chen , Chun-Hao Liao , Pei-Shiun Chung , Hsin-Hung Chen
CPC classification number: H04L25/03 , H04L7/0037 , H04L27/364 , H04L27/3863
Abstract: A method for compensating the frequency dependent phase imbalance in a receiver is provided. The receiver downconverts an input signal to generate the signal r(t). The signal r(t) has an in-phase component rI(t) and a quadrature component rQ(t). A first test signal with a first carrier frequency is applied as the input signal of the receiver to obtain a first phase imbalance I. A second test signal with a second carrier frequency is applying as the input signal of the receiver to obtain a second phase imbalance. An IQ delay mismatch Δt of the receiver according to the difference of the second and the first phase imbalances and the difference of the second and the first carrier frequencies is obtained. The in-phase component rI(t) and the quadrature component rQ(t) of the signal r(t) corresponding to other input signal is compensated according to the obtained IQ delay mismatch Δt.
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Patent Agency Ranking
公开(公告)号：US09184945B2
公开(公告)日：2015-11-10
申请号：US14309925
申请日：2014-06-20
Applicant: MEDIATEK Inc.
Inventor： Kuo-Hao Chen , Chun-Hao Liao , Pei-Shiun Chung , Hsin-Hung Chen
CPC classification number: H04L25/03 , H04L7/0037 , H04L27/364 , H04L27/3863
Abstract: A method for compensating the frequency dependent phase imbalance in a transmitter is provided. The transmitter processes a baseband signal. The method includes the following steps: (a) compensating the baseband signal with a predetermined delay amounts; (b) inputting the compensated baseband signal to an upconversion circuit to generate a radio frequency (RF) signal; (c) inputting the RF signal to a delay information extractor to obtain a correlation value related to the information of the predetermined delay amount; (d) changing the predetermined delay amount and compensating the baseband signal again with the changed predetermined delay amount, and performing steps (b) and (c) again to update the correlation value; and (e) selecting a candidate delay amount from the predetermined delay amount according to the correlation value, and compensating the transmitter by using the candidate delay amount.
Abstract translation: 提供了用于补偿发射机中的频率相关相位不平衡的方法。 发射机处理基带信号。 该方法包括以下步骤：（a）以预定的延迟量补偿基带信号; （b）将经补偿的基带信号输入到上变频电路以产生射频（RF）信号; （c）将RF信号输入延迟信息提取器以获得与预定延迟量的信息相关的相关值; （d）改变预定的延迟量并用改变的预定延迟量再次补偿基带信号，并再次执行步骤（b）和（c）以更新相关值; 以及（e）根据相关值从预定延迟量中选择候选延迟量，并且通过使用候选延迟量来补偿发送器。
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公开(公告)号：US20140301501A1
公开(公告)日：2014-10-09
申请号：US14309925
申请日：2014-06-20
Applicant: MEDIATEK Inc.
Inventor： Kuo-Hao Chen , Chun-Hao Liao , Pei-Shiun Chung , Hsin-Hung Chen
IPC: H04L25/03
CPC classification number: H04L25/03 , H04L7/0037 , H04L27/364 , H04L27/3863
Abstract: A method for compensating the frequency dependent phase imbalance in a transmitter is provided. The transmitter processes a baseband signal. The method includes the following steps: (a) compensating the baseband signal with a predetermined delay amounts; (b) inputting the compensated baseband signal to an upconversion circuit to generate a radio frequency (RF) signal; (c) inputting the RF signal to a delay information extractor to obtain a correlation value related to the information of the predetermined delay amount; (d) changing the predetermined delay amount and compensating the baseband signal again with the changed predetermined delay amount, and performing steps (b) and (c) again to update the correlation value; and (e) selecting a candidate delay amount from the predetermined delay amount according to the correlation value, and compensating the transmitter by using the candidate delay amount.
Abstract translation: 提供了用于补偿发射机中的频率相关相位不平衡的方法。 发射机处理基带信号。 该方法包括以下步骤：（a）以预定的延迟量补偿基带信号; （b）将经补偿的基带信号输入到上变频电路以产生射频（RF）信号; （c）将RF信号输入延迟信息提取器以获得与预定延迟量的信息相关的相关值; （d）改变预定的延迟量并用改变的预定延迟量再次补偿基带信号，并再次执行步骤（b）和（c）以更新相关值; 以及（e）根据相关值从预定延迟量中选择候选延迟量，并且通过使用候选延迟量来补偿发送器。
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公开(公告)号：US09985590B2
公开(公告)日：2018-05-29
申请号：US15374992
申请日：2016-12-09
Applicant: MediaTek Inc.
Inventor： Po-Sen Tseng , Wei-Kai Chang , I-No Liao , Tzyuan Shiu , Hsin-Hung Chen , Caiyi Wang
CPC classification number: H03F1/3247 , H03F1/0222 , H03F1/025 , H03F1/0255 , H03F1/3282 , H03F3/189 , H03F3/245 , H04B1/04 , H04B2001/0425 , H04L27/2614 , H04W52/365
Abstract: According to at least one aspect, a communication system is provided. The communication system includes a power amplifier configured to amplify an input signal to generate an amplified output signal and provide the amplified output signal to an antenna, a power supply coupled to the power amplifier and configured to provide power to the power amplifier based on a power supply control signal, and a controller coupled to the power supply. The controller is configured to identify a target transmit power level for transmission of a wireless signal, generate the power supply control signal based on the target transmit power level using information indicative of a relationship between the target transmit power level and a setting of the power supply, generate performance information indicative of a characteristic of the communication system when the wireless signal is transmitted, and update the information indicative of the relationship using the performance information.
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9.发明公开公开(公告)号：US20230188095A1
公开(公告)日：2023-06-15
申请号：US18096501
申请日：2023-01-12
Applicant: MediaTek Inc.
Inventor： Chen-Yen Ho , Chien-Wei Kuan , Sheng-Hong Yan , Hsin-Hung Chen
CPC classification number: H03F1/0222 , H03F3/245 , H03F3/68 , H04B1/04 , H03F2200/102 , H03F2200/451 , H03F2200/48 , H04B2001/0408
Abstract: A package or a chip including a linear amplifier and a power amplifier is provided, wherein the linear amplifier is configured to receive an envelope tracking signal to generate an amplified envelope tracking signal, the power amplifier is supplied by an envelope tracking supply voltage comprising a DC supply voltage and the amplified envelope tracking signal, and the power amplifier is configured to receive an input signal to generate an output signal.
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10.发明申请公开(公告)号：US20190334479A1
公开(公告)日：2019-10-31
申请号：US16379720
申请日：2019-04-09
Applicant: MEDIATEK INC.
Inventor： Chen-Yen Ho , Chien-Wei Kuan , Sheng-Hong Yan , Hsin-Hung Chen
Abstract: A package or a chip including a linear amplifier and a power amplifier is provided, wherein the linear amplifier is configured to receive an envelope tracking signal to generate an amplified envelope tracking signal, the power amplifier is supplied by an envelope tracking supply voltage comprising a DC supply voltage and the amplified envelope tracking signal, and the power amplifier is configured to receive an input signal to generate an output signal.
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