ACOUSTIC-WAVE DEVICE WITH ACTIVE CALIBRATION MECHANISM

    公开(公告)号:US20170272056A1

    公开(公告)日:2017-09-21

    申请号:US15456665

    申请日:2017-03-13

    Abstract: An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one acoustic-wave duplexer, a voltage-controlled oscillator (VCO), a frequency discriminator and a control circuit. The acoustic-wave duplexer includes a TX filter and an RX filter. The voltage-controlled oscillator includes a calibration resonator and a tunable negative impedance circuit. The TX filter, the RX filter and the calibration resonator are disposed on the same piezoelectric substrate. The frequency discriminator generates a calibration signal according to a frequency deviation of the calibration resonator. The control circuit is connected to the acoustic-wave duplexer and the frequency discriminator. The control circuit adjusts an operating frequency of the TX filter or an operating frequency of the RX filter according to the calibration signal.

    Acoustic-wave device with active calibration mechanism

    公开(公告)号:US10033085B2

    公开(公告)日:2018-07-24

    申请号:US15456680

    申请日:2017-03-13

    Abstract: An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one adjustable acoustic-wave duplexer, a frequency discriminator and a control circuit. The adjustable acoustic-wave duplexer has a first terminal point, a second terminal point and a third terminal point. The adjustable acoustic-wave duplexer includes a TX filter, an RX filter, a first loop switch and a second loop switch. The first loop switch is used for conducting a first loop. The second loop switch is used for conducting a second loop. The control circuit adjusts the operating frequency of the TX filter according to a first loop calibration signal. The control circuit adjusts the operating frequency of the operating frequency of the RX filter according to the second loop calibration signal.

    IMPEDANCE DETECTING AND ADJUSTING CIRCUIT
    6.
    发明申请

    公开(公告)号:US20170331447A1

    公开(公告)日:2017-11-16

    申请号:US15339964

    申请日:2016-11-01

    Abstract: An impedance detecting and adjusting circuit includes an impedance adjusting unit, a frequency band detection source and a controller. The impedance adjusting unit is disposed in a radio frequency front end device. The radio frequency front end device includes one or more than one transmission port. The frequency band detection source is selectively coupled to the target transmission port of the one or more than one transmission port for transmitting the scan signals having different frequencies to the target transmission port to detect a corresponding operating frequency band of the target transmission port. The controller is coupled to the impedance adjusting unit for adjusting the impedance adjusting unit according to the measured operating frequency band and making the target transmission port achieve impedance matching at least in the operating frequency band thereof.

    Method for compensating a power amplification unit of a wireless RF module
    8.
    发明授权
    Method for compensating a power amplification unit of a wireless RF module 有权
    一种用于补偿无线RF模块的功率放大单元的方法

    公开(公告)号:US09331645B2

    公开(公告)日:2016-05-03

    申请号:US14303803

    申请日:2014-06-13

    Abstract: The present invention relates to a method for compensating a power amplification unit of a wireless RF module that includes a baseband unit, a RF transceiver unit, a power amplification unit and a control unit. The baseband unit is connected to the power amplification unit through the control unit and the RF transceiver unit. Based on the characteristic of the power amplification unit, the baseband unit provides a control signal to regulate the output signal characteristic of the power amplification unit, or provides a RF transceiver unit control signal to regulate the characteristics of the RF signal being transmitted by the RF transceiver unit to the power amplification unit, or to regulate the characteristics of the baseband signal being transmitted to the RF transceiver unit, enabling the characteristics of the output signal of the power amplification unit to meet the specifications of the related system.

    Abstract translation: 本发明涉及一种用于补偿包括基带单元,RF收发单元,功率放大单元和控制单元的无线RF模块的功率放大单元的方法。 基带单元通过控制单元和RF收发器单元连接到功率放大单元。 基于功率放大单元的特征,基带单元提供控制信号以调节功率放大单元的输出信号特性,或提供RF收发器单元控制信号,以调节由RF发送的RF信号的特性 收发器单元到功率放大单元,或者调节正在发送到RF收发器单元的基带信号的特性,使得功率放大单元的输出信号的特性能够满足相关系统的规格。

    Electronic device
    9.
    发明授权

    公开(公告)号:US10606547B2

    公开(公告)日:2020-03-31

    申请号:US15239902

    申请日:2016-08-18

    Abstract: An electronic device includes an audio reception circuit, a processing circuit and at least one movable component. The audio reception circuit receives an audio data. The processing circuit performs an audio feature analysis on the audio data to obtain audio feature data, and determines a corresponding action event according to audio feature data to generate an action control signal corresponding to the action event. The movable component performs the action event in response to the action control signal.

    Acoustic-wave device with active calibration mechanism

    公开(公告)号:US10326192B2

    公开(公告)日:2019-06-18

    申请号:US15456665

    申请日:2017-03-13

    Abstract: An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one acoustic-wave duplexer, a voltage-controlled oscillator (VCO), a frequency discriminator and a control circuit. The acoustic-wave duplexer includes a TX filter and an RX filter. The voltage-controlled oscillator includes a calibration resonator and a tunable negative impedance circuit. The TX filter, the RX filter and the calibration resonator are disposed on the same piezoelectric substrate. The frequency discriminator generates a calibration signal according to a frequency deviation of the calibration resonator. The control circuit is connected to the acoustic-wave duplexer and the frequency discriminator. The control circuit adjusts an operating frequency of the TX filter or an operating frequency of the RX filter according to the calibration signal.

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