MULTI-PHASE AMPLIFIER CIRCUITS AND METHODS FOR GENERATING AN AMPLIFIED OUTPUT SIGNAL

    公开(公告)号:US20170179890A1

    公开(公告)日:2017-06-22

    申请号:US15353775

    申请日:2016-11-17

    Abstract: A multi-phase amplifier circuit includes an amplification circuit configured to generate a plurality of phase signals and to provide the plurality of phase signals to a plurality of inductors. An inductive coupling between a first pair of inductors differs from an inductive coupling between a second pair of inductors by a first coupling difference. The amplification circuit is configured to provide two phase signals comprising a first phase difference of less than 180° to the first pair of inductors and two further phase signals comprising the first phase difference to the second pair of inductors. An inductive coupling between a third pair of inductors differs from an inductive coupling between a fourth pair of inductors by a second coupling difference. The amplification circuit is configured to provide two phase signals comprising a second phase difference of 180° to the third pair of inductors and two further phase signals comprising the second phase difference to the fourth pair of inductors.

    LOUDSPEAKER CONE EXCURSION ESTIMATION USING REFERENCE SIGNAL
    12.
    发明申请
    LOUDSPEAKER CONE EXCURSION ESTIMATION USING REFERENCE SIGNAL 有权
    使用参考信号的扬声器锥度估计

    公开(公告)号:US20160373871A1

    公开(公告)日:2016-12-22

    申请号:US14742397

    申请日:2015-06-17

    Abstract: The excursion of a loudspeaker cone is estimated using a reference signal in one example, a primary signal, produced by a cone of a loudspeaker, is received and a reference signal produced simultaneously with the primary signal by the loudspeaker cone is received. The reference signal causes an excursion of the loudspeaker cone that is amplitude modulated by the excursion caused by the primary signal. An amplitude modulation of the reference signal is determined and an excursion of the loudspeaker cone is determined using the determined amplitude modulation.

    Abstract translation: 在一个示例中,使用参考信号估计扬声器锥的偏移,接收由扬声器的锥形产生的主信号,并且接收由扬声器锥体与主信号同时产生的参考信号。 参考信号引起由主信号引起的偏移进行幅度调制的扬声器锥的偏移。 确定参考信号的幅度调制,并且使用确定的幅度调制确定扬声器锥的偏移。

    Systems and methods for tracking elapsed time
    13.
    发明授权
    Systems and methods for tracking elapsed time 有权
    跟踪经过时间的系统和方法

    公开(公告)号:US09317059B2

    公开(公告)日:2016-04-19

    申请号:US14084946

    申请日:2013-11-20

    Abstract: A system utilizing time tracking is disclosed. The system includes a real time clock, a time component, and a controller. The real time clock is configured to track time. The time component is configured to measure a time value without an additional power source. The controller is configured to determine an elapsed time using the time value and calibration information and to update the real time clock using the elapsed time in a restart mode.

    Abstract translation: 公开了一种利用时间跟踪的系统。 该系统包括实时时钟,时间分量和控制器。 实时时钟配置为跟踪时间。 时间组件被配置为在没有附加电源的情况下测量时间值。 控制器被配置为使用时间值和校准信息来确定经过的时间,并且使用重启模式中的经过时间来更新实时时钟。

    GENERATING POWER SUPPLY SIGNALS FOR A PLURALITY OF RF POWER AMPLIFIERS

    公开(公告)号:US20200044610A1

    公开(公告)日:2020-02-06

    申请号:US16503253

    申请日:2019-07-03

    Abstract: An apparatus for generating a plurality of power supply signals for a plurality of power amplifiers configured to amplify radio frequency transmit signals includes a first power supply circuit configured to generate a first power supply signal and a different second power supply signal. The first power supply circuit is configured to provide the first power supply signal to a first output path and the second power supply signal to a second output path. Further, the apparatus includes a second power supply circuit configured to generate a third power supply signal. Still further, the apparatus includes a switching circuit configured to couple the second power supply circuit to the first output path in a first operating mode to provide a first combined power supply signal at an output of the first output path based on the first power supply signal and the third power supply signal.

    Generating power supply signals for a plurality of RF power amplifiers

    公开(公告)号:US10348247B2

    公开(公告)日:2019-07-09

    申请号:US15352743

    申请日:2016-11-16

    Abstract: An apparatus for generating a plurality of power supply signals for a plurality of power amplifiers configured to amplify radio frequency transmit signals includes a first power supply circuit configured to generate a first power supply signal and a different second power supply signal. The first power supply circuit is configured to provide the first power supply signal to a first output path and the second power supply signal to a second output path. Further, the apparatus includes a second power supply circuit configured to generate a third power supply signal. Still further, the apparatus includes a switching circuit configured to couple the second power supply circuit to the first output path in a first operating mode to provide a first combined power supply signal at an output of the first output path based on the first power supply signal and the third power supply signal.

    Multi-phase amplifier circuits and methods for generating an amplified output signal

    公开(公告)号:US10122324B2

    公开(公告)日:2018-11-06

    申请号:US15353775

    申请日:2016-11-17

    Abstract: A multi-phase amplifier circuit includes an amplification circuit configured to generate a plurality of phase signals and to provide the plurality of phase signals to a plurality of inductors. An inductive coupling between a first pair of inductors differs from an inductive coupling between a second pair of inductors by a first coupling difference. The amplification circuit is configured to provide two phase signals comprising a first phase difference of less than 180° to the first pair of inductors and two further phase signals comprising the first phase difference to the second pair of inductors. An inductive coupling between a third pair of inductors differs from an inductive coupling between a fourth pair of inductors by a second coupling difference. The amplification circuit is configured to provide two phase signals comprising a second phase difference of 180° to the third pair of inductors and two further phase signals comprising the second phase difference to the fourth pair of inductors.

    Audio output device and method for determining a speaker cone excursion

    公开(公告)号:US09681227B2

    公开(公告)日:2017-06-13

    申请号:US14593843

    申请日:2015-01-09

    CPC classification number: H04R3/007 H04R3/002 H04R29/003 H04R2499/11

    Abstract: An audio output device is described comprising a speaker; an audio output circuit configured to receive a first audio signal and configured to supply the first audio signal and a second audio signal to the speaker, wherein the second audio signal comprises a higher frequency than the first audio signal; a microphone configured to receive an acoustic signal from the speaker in response to the first audio signal and the second audio signal and to convert the acoustic signal into a received audio signal and a determiner configured to determine a phase of a frequency component of the received audio signal corresponding to the second audio signal and to determine an excursion of the speaker by the first audio signal based on the phase.

    Loudspeaker cone excursion estimation using reference signal
    18.
    发明授权
    Loudspeaker cone excursion estimation using reference signal 有权
    使用参考信号的扬声器锥度偏移估计

    公开(公告)号:US09565505B2

    公开(公告)日:2017-02-07

    申请号:US14742397

    申请日:2015-06-17

    Abstract: The excursion of a loudspeaker cone is estimated using a reference signal in one example, a primary signal, produced by a cone of a loudspeaker, is received and a reference signal produced simultaneously with the primary signal by the loudspeaker cone is received. The reference signal causes an excursion of the loudspeaker cone that is amplitude modulated by the excursion caused by the primary signal. An amplitude modulation of the reference signal is determined and an excursion of the loudspeaker cone is determined using the determined amplitude modulation.

    Abstract translation: 在一个示例中,使用参考信号估计扬声器锥的偏移,接收由扬声器的锥形产生的主信号,并且接收由扬声器锥体与主信号同时产生的参考信号。 参考信号引起由主信号引起的偏移进行幅度调制的扬声器锥的偏移。 确定参考信号的幅度调制,并且使用确定的幅度调制确定扬声器锥的偏移。

Patent Agency Ranking