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    RF power amplifier circuit and RF transmitter and terminal including it
    12.
    发明授权
    RF power amplifier circuit and RF transmitter and terminal including it 有权
    射频功率放大器电路和射频发射器和终端包括它

    公开(公告)号：US07250818B2

    公开(公告)日：2007-07-31

    申请号：US11096938

    申请日：2005-04-01

    Applicant: Moshe Ben Ayun ,  Ovadia Grossman ,  Shay Nir ,  Mark Rozental

    Inventor： Moshe Ben Ayun ,  Ovadia Grossman ,  Shay Nir ,  Mark Rozental

    IPC: H03G3/20

    CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03G3/3042 ,  H03G2201/40

    Abstract: A RFPA (radio frequency power amplifier) circuit (150) which includes a RFPA (101), a supply voltage source (104), means (155) for applying to the RFPA a gain control bias voltage and a feedback control loop (156) for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler (107) for sampling an output of the RFPA, a RF detector (109) for detecting a level of RF power sampled by the sampler, a comparator (115) for comparing an output signal from the RF detector with a reference signal, an integrator (117) for integrating an output signal of the comparator and a voltage regulator (151) having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

    Abstract translation: 包括RFPA（101），电源电压源（104）的RFPA（射频功率放大器）电路（150），用于向RFPA施加增益控制偏置电压的装置（155）和反馈控制回路（156） 用于调整施加到RFPA的电压，所述反馈控制回路包括用于对RFPA的输出进行采样的采样器（107）;用于检测由采样器采样的RF功率电平的RF检测器（109），比较器（115） 用于将来自RF检测器的输出信号与参考信号进行比较，用于对比较器的输出信号进行积分的积分器（117）和具有来自积分器的第一输入的电压调节器（151）和来自电源电压源的第二输入 以及连接到所述RFPA的输出，所述调节器可操作以向所述RFPA施加响应于来自所述积分器的输入信号而调整的电源电压。

    RF power amplifier circuit and RF transmitter and terminal including it
    13.
    发明申请
    RF power amplifier circuit and RF transmitter and terminal including it 有权
    射频功率放大器电路和射频发射器和终端包括它

    公开(公告)号：US20060220739A1

    公开(公告)日：2006-10-05

    申请号：US11096938

    申请日：2005-04-01

    Applicant: Moshe Ben-Ayun ,  Ovadia Grossman ,  Shay Nir ,  Mark Rozental

    Inventor： Moshe Ben-Ayun ,  Ovadia Grossman ,  Shay Nir ,  Mark Rozental

    IPC: H03G3/20

    CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03G3/3042 ,  H03G2201/40

    Abstract: A RFPA (radio frequency power amplifier) circuit (150) which includes a RFPA (101), a supply voltage source (104), means (155) for applying to the RFPA a gain control bias voltage and a feedback control loop (156) for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler (107) for sampling an output of the RFPA, a RF detector (109) for detecting a level of RF power sampled by the sampler, a comparator (115) for comparing an output signal from the RF detector with a reference signal, an integrator (117) for integrating an output signal of the comparator and a voltage regulator (151) having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

    Abstract translation: 包括RFPA（101），电源电压源（104）的RFPA（射频功率放大器）电路（150），用于向RFPA施加增益控制偏置电压的装置（155）和反馈控制回路（156） 用于调整施加到RFPA的电压，所述反馈控制回路包括用于对RFPA的输出进行采样的采样器（107）;用于检测由采样器采样的RF功率电平的RF检测器（109），比较器（115） 用于将来自RF检测器的输出信号与参考信号进行比较，用于对比较器的输出信号进行积分的积分器（117）和具有来自积分器的第一输入的电压调节器（151）和来自电源电压源的第二输入 以及连接到所述RFPA的输出，所述调节器可操作以向所述RFPA施加响应于来自所述积分器的输入信号而调整的电源电压。

    High frequency power amplifier circuit and electric component for high frequency power amplifier
    14.
    发明申请
    High frequency power amplifier circuit and electric component for high frequency power amplifier 有权
    高频功率放大器电路和高频功率放大器电气元件

    公开(公告)号：US20060066398A1

    公开(公告)日：2006-03-30

    申请号：US11227109

    申请日：2005-09-16

    Applicant: Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

    Inventor： Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

    IPC: H03G3/20

    CPC classification number: H03F3/191 ,  H03F1/30 ,  H03F1/32 ,  H03G1/007 ,  H03G3/004 ,  H03G3/3047 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

    Abstract: In a high frequency power amplifier circuit in which bias voltages are applied to the transistors for amplification by current mirroring, this invention enables preventing waveform distortion near the peak output power level by allowing sufficient idle currents to flow through the transistors for amplification, while enhancing the power efficiency in a low output power region. The power amplifier includes a detection circuit comprising a transistor for detection which receives the AC component of an input signal to the last-stage transistor for amplification at its control terminal, a current mirror circuit which mirrors current flowing through that transistor, and a current-voltage conversion means which converts current flowing in the slave side of the current mirror circuit into a voltage. In the detection circuit, a voltage from a bias circuit for generating the bias voltages for the transistors for amplification is applied to the control terminal of the transistor for detection and output of the detection circuit is applied to the control terminal of the last-stage transistor for amplification.

    Abstract translation: 在通过电流镜像将偏置电压施加到晶体管以进行放大的高频功率放大器电路中，本发明能够通过允许足够的空闲电流流过晶体管进行放大，从而防止峰值输出功率电平附近的波形失真，同时增强 低输出功率区域的功率效率。 功率放大器包括检测电路，该检测电路包括用于检测的晶体管，其将用于在其控制端子处放大的最后级晶体管的输入信号的AC分量接收;反射电流流过该晶体管的电流镜电路， 电压转换装置，其将在电流镜电路的从侧中流动的电流转换成电压。 在检测电路中，用于产生用于放大的晶体管的偏置电压的偏置电路的电压被施加到用于检测的晶体管的控制端，并且检测电路的输出被施加到最后级晶体管的控制端 用于扩增。

    Dynamically varying linearity system for an RF front-end of a communicaton device
    15.
    发明申请
    Dynamically varying linearity system for an RF front-end of a communicaton device 失效
    用于通信设备的RF前端的动态变化的线性系统

    公开(公告)号：US20020159503A1

    公开(公告)日：2002-10-31

    申请号：US09811082

    申请日：2001-03-16

    Applicant: Conexant Systems, Inc.

    Inventor： Balasubramanian Ramachandran

    IPC: H04B001/69

    CPC classification number: H04W52/267 ,  H03G3/004 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/307 ,  H03G2201/40 ,  H03G2201/508 ,  H04B1/109 ,  H04L1/0001 ,  H04W52/08 ,  H04W52/38

    Abstract: A dynamically varying linearity system nullDVLSnull capable of varying the linearity of a radio frequency (RF) front-end of a communication device responsive to receiving a condition signal indicating a desired mode of operation of a transmitter. The DVLS may include a condition signal indicative of the desired mode of operation and a controller that adjusts the linearity of the transmitter responsive to the condition signal. The condition signal may be responsive to a user interface. The controller, responsive to the condition signal, may dynamically adjust the operating current of the transmitter.

    Abstract translation: 一种动态变化的线性系统“DVLS”，其能够响应于接收到指示发射机的所需操作模式的条件信号而改变通信设备的射频（RF）前端的线性度。 DVLS可以包括指示期望的操作模式的条件信号和响应于条件信号来调整发射机的线性度的控制器。 条件信号可以响应于用户界面。 控制器响应于条件信号，可以动态地调整发射机的工作电流。

    Switching to a Second Audio Interface Between a Computer Apparatus and an Audio Apparatus
    18.
    发明申请
    Switching to a Second Audio Interface Between a Computer Apparatus and an Audio Apparatus 审中-公开
    切换到计算机设备和音频设备之间的第二音频接口

    公开(公告)号：US20160302004A1

    公开(公告)日：2016-10-13

    申请号：US15094040

    申请日：2016-04-08

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Glenn N. DICKINS ,  Gopal ERINJIPPURATH ,  Gary SPITTLE

    IPC: H04R3/00 ,  H04R1/24 ,  H04R1/08

    CPC classification number: H04R3/00 ,  G06F13/10 ,  G09G2360/06 ,  H03G2201/40 ,  H04M1/05 ,  H04M1/6066 ,  H04R1/08 ,  H04R1/1041 ,  H04R1/24 ,  H04R3/12 ,  H04R5/033 ,  H04R2227/003 ,  H04R2420/01 ,  H04R2420/07

    Abstract: An audio apparatus is configured to switch, when there exists a first audio interface between the audio apparatus and a computer apparatus, to using a second audio interface between the audio apparatus and the computer apparatus, the second audio interface being different from the first audio interface. The switching comprises: receiving, via the first audio interface, combined audio data and non-audio data, the non-audio data comprising a request to switch to using the second audio interface; obtaining the request from the data; and, in response to obtaining the request, transmitting to the computer apparatus a confirmation of switching to using the second audio interface. The audio apparatus and the computer apparatus are described and claimed.

    Abstract translation: 音频装置被配置为当音频装置和计算机装置之间存在第一音频接口时，在音频装置和计算机装置之间使用第二音频接口，第二音频接口不同于第一音频接口 。 切换包括：通过第一音频接口接收组合的音频数据和非音频数据，非音频数据包括切换到使用第二音频接口的请求; 从数据获取请求; 并且响应于获得所述请求，向所述计算机设备发送切换到使用所述第二音频接口的确认。 音频设备和计算机设备被描述和要求保护。

    Linear and non-linear dual mode transmitter
    19.
    发明授权
    Linear and non-linear dual mode transmitter 有权
    线性和非线性双模发射机

    公开(公告)号：US08244193B2

    公开(公告)日：2012-08-14

    申请号：US12348450

    申请日：2009-01-05

    Applicant: Meng-An Pan

    Inventor： Meng-An Pan

    IPC: H01Q11/12 ,  H04K3/00

    CPC classification number: H04B1/0003 ,  H03F1/0261 ,  H03F3/45188 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307 ,  H03G2201/40 ,  H04B1/0475

    Abstract: A transmitter includes a dual mode modulator and an amplifier coupled to the dual mode modulator. The dual mode modulator implements a linear modulation scheme during a first mode of the modulator to produce a variable envelope modulated signal. The dual mode modulator implements a non-linear modulation scheme during a second mode of the modulator to produce a constant envelope modulated signal. The amplifier is biased as a linear amplifier during the first mode of the modulator and is biased as a non-linear amplifier during the second mode of the modulator. A feed-forward connection between the dual mode modulator and the amplifier is used to indicate a change in modulation mode and to adjust the bias of the amplifier. A power of the constant envelope modulated signal is increased such that an operating point of the amplifier remains substantially constant during the first and second modes of the modulator.

    Abstract translation: 发射机包括耦合到双模调制器的双模调制器和放大器。 双模式调制器在调制器的第一模式期间实现线性调制方案，以产生可变包络调制信号。 双模式调制器在调制器的第二模式期间实现非线性调制方案，以产生恒定的包络调制信号。 放大器在调制器的第一模式期间被偏置为线性放大器，并且在调制器的第二模式期间被偏置为非线性放大器。 双模式调制器和放大器之间的前馈连接用于指示调制模式的变化并调整放大器的偏置。 恒定包络调制信号的功率增加，使得放大器的工作点在调制器的第一和第二模式期间保持基本恒定。

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