公开(公告)号：US20080204135A1

公开(公告)日：2008-08-28

申请号：US12115263

申请日：2008-05-05

Applicant: Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

Inventor： Hooman Darabi ,  Henrik T. Jensen ,  Brima Ibrahim

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: A method for processing a plurality of signals may include amplifying an input signal and generating a wideband signal from the amplified input signal. The method may further include bandpass filtering the generated wideband signal to generate a narrowband signal, and adjusting amplification of the input signal based on a narrowband received signal strength indication of the generated narrowband signal, and/or a wideband received signal strength indication of the generated wideband signal. The amplified input signal may be downconverted to generate the wideband signal. The amplified input signal may be downconverted to an intermediate frequency (IF) and/or to a baseband signal to generate the wideband signal. At least one blocker signal may be bandpass filtered from the amplified input signal.

Abstract translation: 用于处理多个信号的方法可以包括放大输入信号并从放大的输入信号产生宽带信号。 该方法还可以包括对生成的宽带信号进行带通滤波以产生窄带信号，以及基于所生成的窄带信号的窄带接收信号强度指示和/或所生成的宽带信号强度指示来调整输入信号的放大 宽带信号。 放大的输入信号可以被下变频以产生宽带信号。 放大的输入信号可以下变频到中频（IF）和/或基带信号以产生宽带信号。 至少一个阻塞信号可以从放大的输入信号进行带通滤波。

公开(公告)号：US07386293B2

公开(公告)日：2008-06-10

申请号：US10942844

申请日：2004-09-17

Applicant: Naoki Okamoto ,  Junji Ito

Inventor： Naoki Okamoto ,  Junji Ito

IPC: H04B1/28 ,  H04B1/06

CPC classification number: H03G1/0023 ,  H03G3/3063 ,  H03G11/08 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307

Abstract: In a receiving circuit, an antenna 11 receives a high-frequency signal at a predetermined frequency band, a level changing section 13 changes a signal level of the high-frequency signal received by the antenna, a subsequent-stage circuit 14 performs predetermined signal processing for the high-frequency signal whose signal level is changed at the level changing section 13, a detecting section 32 detects a signal level of the high-frequency signal for which the signal processing is performed by the subsequent-stage circuit 14, and a control section 33 sets a rate of change of the high-frequency signal by the level changing section 13, based on the signal level of the high-frequency signal detected by the detecting section 32, so that the signal level of the high-frequency signal detected by the detecting section 32 does not exceed a predetermined value.

Abstract translation: 在接收电路中，天线11接收预定频带的高频信号，电平变更部13改变由天线接收的高频信号的信号电平，后级电路14进行规定的信号处理 对于在电平变化部13发生信号电平变化的高频信号，检测部32检测后级电路14进行信号处理的高频信号的信号电平， 部分33基于由检测部分32检测的高频信号的信号电平，通过电平改变部分13设置高频信号的变化率，使得检测到的高频信号的信号电平 由检测部32不超过规定值。

公开(公告)号：US07366482B2

公开(公告)日：2008-04-29

申请号：US10529538

申请日：2004-08-10

Applicant: Yoshihiro Hara ,  Mamoru Arayashiki

Inventor： Yoshihiro Hara ,  Mamoru Arayashiki

IPC: H04B1/04

CPC classification number: H03F1/0222 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24 ,  H03G3/004 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/307 ,  H03G2201/40 ,  H04B2001/045

Abstract: Either linear operating mode or saturation operating mode is set as the operating mode of a high-frequency power amplifier on the basis of an operating mode set signal. The gain of a variable gain amplifier provided in front of the high-frequency power amplifier and values of output voltage and bias current supplied from a supply voltage/bias current control circuit to the high-frequency power amplifier are switched. The gain of the variable gain amplifier in the saturation operating mode is formed so as to be higher by a predetermined value than that in the linear operating mode. Accordingly, the high-frequency power amplifier operates in the designated operating mode, so that the output transmission power range can be widened.

Abstract translation: 基于操作模式设定信号，将线性工作模式或饱和运行模式设置为高频功率放大器的工作模式。 在高频功率放大器前面提供的可变增益放大器的增益和从电源电压/偏置电流控制电路提供给高频功率放大器的输出电压和偏置电流的值被切换。 饱和运行模式中的可变增益放大器的增益形成为比线性运行模式中的预定值高。 因此，高频功率放大器在指定的工作模式下工作，从而可以扩大输出传输功率范围。

公开(公告)号：US07271662B2

公开(公告)日：2007-09-18

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: H03G5/16 ,  H03F3/68

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。

公开(公告)号：US07263135B2

公开(公告)日：2007-08-28

申请号：US10505084

申请日：2003-10-02

Applicant: Shinichiro Takabayashi ,  Masato Ukena ,  Masayuki Orihashi ,  Michiaki Matsuo

Inventor： Shinichiro Takabayashi ,  Masato Ukena ,  Masayuki Orihashi ,  Michiaki Matsuo

IPC: H04K1/02 ,  H04B1/04 ,  H03C1/62

CPC classification number: H03G3/3042 ,  H03F1/0211 ,  H03F1/025 ,  H03F1/0255 ,  H03F1/32 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/102 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H04B1/0475 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A transmitting method and a transmitter apparatus, which need no manual adjustment, are disclosed. A delay amount is automatically adjusted such that an out-of-band distortion component of a transmission signal is minimized, and a correct timing is produced by the method and the apparatus. In this transmitter apparatus, a first delay adjusts a control timing over a voltage that controls a power amplifier, and a distributor distributes an output from the power amplifier in order to feedback parts of the output. A distortion adjusting units calculating a distortion component of the transmission signal by using the signal fed back by the distributor, and adjusts automatically a delay amount of the first delay so as to minimize the distortion component. This structure allows eliminating manual adjustment, and obtaining high power-efficiency with fewer distortions.

Abstract translation: 公开了不需要手动调整的发送方法和发送装置。 自动调整延迟量，使得发送信号的带外失真分量最小化，并且通过该方法和装置产生正确的定时。 在该发送装置中，第一延迟调整控制功率放大器的电压的控制定时，并且分配器分配来自功率放大器的输出，以反馈输出部分。 失真调整单元，通过使用由分配器反馈的信号来计算发送信号的失真分量，并自动调整第一延迟的延迟量，以使失真分量最小化。 这种结构允许消除手动调整，并且以较少的失真获得高功率效率。

公开(公告)号：US20070164820A9

公开(公告)日：2007-07-19

申请号：US10977868

申请日：2004-10-29

Applicant: Hooman Darabi ,  Henrik Jensen ,  Brima Ibrahim

Inventor： Hooman Darabi ,  Henrik Jensen ,  Brima Ibrahim

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: Methods and systems for processing a plurality of signals are disclosed herein. Aspects of the method may comprise amplifying an input signal. The amplified input signal may be bandpass filtered. Amplification of the input signal may be adjusted based on only narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplified input signal may be downconverted and a blocker signal may be bandpass filtered from the amplified input signal. Signal strength of a desired signal from the amplified input signal may be measured. The amplification of the input signal may be adjusted utilizing a triple well (TW) NMOS transistor. A control signal may be generated based on the narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplification of the input signal may be adjusted based on at least one of the generated control signals.

Abstract translation: 本文中公开了用于处理多个信号的方法和系统。 该方法的方面可以包括放大输入信号。 放大的输入信号可以被带通滤波。 可以仅基于带通滤波放大输入信号的窄带接收信号强度指示来调整输入信号的放大。 放大的输入信号可以被下变频，并且阻塞信号可以从放大的输入信号进行带通滤波。 可以测量来自放大的输入信号的期望信号的信号强度。 可以使用三阱（TW）NMOS晶体管来调节输入信号的放大。 可以基于带通滤波放大输入信号的窄带接收信号强度指示来产生控制信号。 可以基于所生成的控制信号中的至少一个来调整输入信号的放大。

公开(公告)号：US07183845B2

公开(公告)日：2007-02-27

申请号：US11118336

申请日：2005-05-02

Applicant: Leonard Dauphinee ,  Lawrence M. Burns

Inventor： Leonard Dauphinee ,  Lawrence M. Burns

IPC: H03G3/20

CPC classification number: H01L22/20 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H01L2924/0002 ,  H03F3/211 ,  H03G3/3036 ,  H03G3/3052 ,  H03G2201/307 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102 ,  H01L2924/00

Abstract: A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds.

公开(公告)号：US07133466B2

公开(公告)日：2006-11-07

申请号：US10999207

申请日：2004-11-24

Applicant: Satoshi Maruyama

Inventor： Satoshi Maruyama

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC classification number: H03F1/3241 ,  H03F1/3247 ,  H03F1/52 ,  H03F3/211 ,  H03G1/0088 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/504

Abstract: The present invention provides an amplifying apparatus including, two amplifiers for receiving input signals in common and for outputting their respective amplified signals, a combiner for combining the output signals of the two amplifiers and for outputting a combined signal, the amplifying apparatus which inhibit the distortion component in the output of amplifiers in the transition state. This amplifying apparatus comprises, a predistortion unit for determining a distortion compensation component based on the output of the combiner and for predistorting the input based on the determined distortion compensation component, and a gain control unit for attenuating the inputs to set lower than in the steady state by reducing the gain in the transition from two amplifier operation to one amplifier operation, or in the transition from one amplifier operation to two amplifier operation, or at the time of removal or attachment the amplifiers.

Abstract translation: 本发明提供了一种放大装置，包括两个用于共同接收输入信号并用于输出它们各自的放大信号的放大器，用于组合两个放大器的输出信号并用于输出组合信号的组合器，抑制失真的放大装置 放大器输出中的分量处于过渡状态。 该放大装置包括：预失真单元，用于基于组合器的输出确定失真补偿分量，并且用于基于所确定的失真补偿分量对输入进行预失真;以及增益控制单元，用于将输入衰减成低于稳态 通过减小从两个放大器操作到一个放大器操作的转变中的增益，或者在从一个放大器操作到两个放大器操作的转换中，或者在去除或附接放大器时的增益。

公开(公告)号：US07068100B2

公开(公告)日：2006-06-27

申请号：US10822729

申请日：2004-04-13

Applicant: Leonard Dauphinee ,  Lawrence M. Burns

Inventor： Leonard Dauphinee ,  Lawrence M. Burns

IPC: H03G3/20

CPC classification number: H01L22/20 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H01L2924/0002 ,  H03F3/211 ,  H03G3/3036 ,  H03G3/3052 ,  H03G2201/307 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102 ,  H01L2924/00

Abstract: A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds.

公开(公告)号：US20060091948A1

公开(公告)日：2006-05-04

申请号：US10977868

申请日：2004-10-29

Applicant: Hooman Darabi

Inventor： Hooman Darabi

IPC: H03G5/16

CPC classification number: H03G1/007 ,  H03G3/3063 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/307

Abstract: Methods and systems for processing a plurality of signals are disclosed herein. Aspects of the method may comprise amplifying an input signal. The amplified input signal may be bandpass filtered. Amplification of the input signal may be adjusted based on only narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplified input signal may be downconverted and a blocker signal may be bandpass filtered from the amplified input signal. Signal strength of a desired signal from the amplified input signal may be measured. The amplification of the input signal may be adjusted utilizing a triple well (TW) NMOS transistor. A control signal may be generated based on the narrowband received signal strength indication of the bandpass filtered amplified input signal. The amplification of the input signal may be adjusted based on at least one of the generated control signals.

Abstract translation: 本文公开了用于处理多个信号的方法和系统。 该方法的方面可以包括放大输入信号。 放大的输入信号可以被带通滤波。 可以仅基于带通滤波放大输入信号的窄带接收信号强度指示来调整输入信号的放大。 放大的输入信号可以被下变频，并且阻塞信号可以从放大的输入信号进行带通滤波。 可以测量来自放大的输入信号的期望信号的信号强度。 可以使用三阱（TW）NMOS晶体管来调节输入信号的放大。 可以基于带通滤波放大输入信号的窄带接收信号强度指示来产生控制信号。 可以基于所生成的控制信号中的至少一个来调整输入信号的放大。