Power Detection Method and Related Communication Device
    1.
    发明申请
    Power Detection Method and Related Communication Device 有权
    功率检测方法及相关通信设备

    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.

    CPC classification number: H04B17/14 H04B17/24

    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。

    Phase synchronized LO generation
    2.
    发明授权

    公开(公告)号:US11640184B2

    公开(公告)日:2023-05-02

    申请号:US16918601

    申请日:2020-07-01

    Applicant: MEDIATEK INC.

    Abstract: Aspects of the disclosure provide methods and apparatuses for generating an internal reset signal that is synchronous to a clock signal. In some embodiments, an apparatus includes a clock switch circuit and a plurality of serially coupled D flip-flops (DFFs). The clock switch circuit receiving the clock signal can output the clock signal in an on state and block the clock signal in an off state. The plurality of serially coupled DFFs are coupled to the clock switch circuit and driven by the clock signal. If an external reset signal is enabled, the plurality of serially coupled DFFs can enable the internal reset signal. If the external reset signal is disabled, after a predefined number of clock signal cycles, the plurality of serially coupled DFFs can disable the internal reset signal.

    Detection Path Design for Communication Systems
    3.
    发明申请
    Detection Path Design for Communication Systems 有权
    通信系统的检测路径设计

    公开(公告)号:US20160211870A1

    公开(公告)日:2016-07-21

    申请号:US15002089

    申请日:2016-01-20

    Applicant: MEDIATEK INC.

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    Abstract translation: 提供了用于反射系数估计的检测路径设计的方法和装置。 在一个新颖的方面,基于硬件的相位估计器估计正向路径信号和反向路径信号之间的相移。 在一个实施例中,使用数据选择器仅传递高于幅度阈值的信号。 在另一个实施例中,修改的相位展开算法存储用于后续采样的展开校正,并且在处理每个被处理样本的处理时更新存储的展开校正。 在另一个新颖的方面,使用混合的硬件和软件解决方案。 在一个实施例中,参考信号和检测信号被匹配,使得调制信号干扰被去除。 在一些实施例中,使用一个或两个功率检测器和互相关器。 在另一个实施例中,使用两个检测测量路径来获得反射系数。 在一个实施例中,估计分数定时偏移以获得反射系数。

    Detection path design for communication systems

    公开(公告)号:US10075202B2

    公开(公告)日:2018-09-11

    申请号:US15662728

    申请日:2017-07-28

    Applicant: MEDIATEK INC.

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    Detection Path Design for Communication Systems

    公开(公告)号:US20170331503A1

    公开(公告)日:2017-11-16

    申请号:US15662728

    申请日:2017-07-28

    Applicant: MEDIATEK INC.

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    Detection path design for communication systems

    公开(公告)号:US09762267B2

    公开(公告)日:2017-09-12

    申请号:US15002089

    申请日:2016-01-20

    Applicant: MEDIATEK INC.

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    CALIBRATION METHOD FOR WIRELESS COMMUNICATION DEVICE AND ASSOCIATED CALIBRATION APPARATUS
    8.
    发明申请
    CALIBRATION METHOD FOR WIRELESS COMMUNICATION DEVICE AND ASSOCIATED CALIBRATION APPARATUS 审中-公开
    无线通信设备和相关校准设备的校准方法

    公开(公告)号:US20160294490A1

    公开(公告)日:2016-10-06

    申请号:US15015134

    申请日:2016-02-04

    Applicant: MEDIATEK INC.

    CPC classification number: H04B17/21 H04B17/14

    Abstract: A calibration method is applied to a wireless communication device having a programmable tuner and a signal processing path. The calibration method includes at least the following steps: configuring the programmable tuner to have a plurality of different tuner states, wherein the signal processing path has a first end and a second end, and the programmable tuner is coupled to the second end; when the programmable tuner is configured to have one of the different tuner states, obtaining a measured reflection coefficient at the first end of the signal processing path; and calibrating mapping relationship between a reflection coefficient at the first end of the signal processing path and a reflection coefficient at the second end of the signal processing path according to the different tuner states and measured reflection coefficients associated with the different tuner states.

    Abstract translation: 校准方法应用于具有可编程调谐器和信号处理路径的无线通信设备。 所述校准方法至少包括以下步骤:将所述可编程调谐器配置为具有多个不同的调谐器状态,其中所述信号处理路径具有第一端和第二端,并且所述可编程调谐器耦合到所述第二端; 当可编程调谐器被配置为具有不同调谐器状态之一时,在信号处理路径的第一端获得测量的反射系数; 以及根据与不同的调谐器状态相关联的不同的调谐器状态和测量的反射系数,校准信号处理路径的第一端的反射系数与信号处理路径的第二端的反射系数之间的映射关系。

    APPARATUS AND METHOD FOR CONTROLLING IMPEDANCE TUNING BY USING HYBRID CONTROL ALGORITHM
    10.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING IMPEDANCE TUNING BY USING HYBRID CONTROL ALGORITHM 有权
    使用混合控制算法控制阻尼调谐的装置和方法

    公开(公告)号:US20160126904A1

    公开(公告)日:2016-05-05

    申请号:US14854054

    申请日:2015-09-15

    Applicant: Mediatek Inc.

    Abstract: An impedance tuning control apparatus has a processing circuit and an output circuit. The processing circuit determines a first control setting according to a first performance metric, and performs a search operation with a search start point set by the first control setting to find a second control setting according to a second performance metric. The second performance metric is different from the first performance metric. The output circuit outputs a final control setting to a tuner, wherein the final control setting is derived from the second control setting.

    Abstract translation: 阻抗调谐控制装置具有处理电路和输出电路。 处理电路根据第一性能度量确定第一控制设置,并且利用由第一控制设置设置的搜索开始点执行搜索操作,以根据第二性能度量找到第二控制设置。 第二个性能指标与第一个性能指标不同。 输出电路向调谐器输出最终控制设置,其中最终控制设置是从第二控制设置导出的。

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