公开(公告)号：US20140220921A1

公开(公告)日：2014-08-07

申请号：US14250195

申请日：2014-04-10

Applicant: AVIACOMM INC.

Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

IPC: H04B1/00

CPC classification number: H04B1/0053 ,  H03D7/165 ,  H03D2200/0017 ,  H03D2200/005 ,  H04L27/38

Abstract: One embodiment of the present invention provides a receiver for wireless communication. The receiver includes a demodulator and at least one filtering mechanism coupled to the demodulator, and an analog-to-digital converter (ADC) coupled to the filtering mechanism. The filtering mechanism can be configured to function as a low-pass filter (LPF) or a band-pass filter (BPF), thereby enabling the receiver to function as a direct-conversion receiver or a low-intermediate frequency (low-IF) receiver.

Abstract translation: 本发明的一个实施例提供了一种用于无线通信的接收机。 接收机包括解调器和耦合到解调器的至少一个滤波机构以及耦合到滤波机构的模数转换器（ADC）。 滤波机构可以配置为用作低通滤波器（LPF）或带通滤波器（BPF），从而使接收机能够用作直接转换接收机或低中频（低中频） 接收器。

公开(公告)号：US20140220915A1

公开(公告)日：2014-08-07

申请号：US14250001

申请日：2014-04-10

Applicant: Aviacomm Inc.

Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

IPC: H04B1/04

CPC classification number: H04B1/04 ,  H03F1/223 ,  H03F3/193 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F3/72 ,  H03F2203/7209 ,  H04B2001/0408 ,  H04L27/0002

Abstract: One embodiment of the present invention provides a transmitter for wireless communication. The transmitter includes a wideband tunable modulator, a number of power amplifiers with a particular power amplifier associated with a particular frequency range, and a wideband power amplifier (PA) driver. The PA driver is configured to receive an output signal from the wideband tunable modulator, amplify the output signal, and send the amplified output signal to at least one of the power amplifiers.

Abstract translation: 本发明的一个实施例提供了一种用于无线通信的发射机。 发射机包括宽带可调调制器，具有与特定频率范围相关联的特定功率放大器的多个功率放大器以及宽带功率放大器（PA）驱动器。 PA驱动器被配置为从宽带可调调制器接收输出信号，放大输出信号，并将放大的输出信号发送到至少一个功率放大器。

公开(公告)号：US20140148114A1

公开(公告)日：2014-05-29

申请号：US14085236

申请日：2013-11-20

Applicant: Aviacomm Inc.

Inventor： Tao Li ,  Hans Wang ,  Binglei Zhang ,  Shih Hsiung Mo

IPC: H04B15/02

CPC classification number: H04B1/30 ,  H04B2001/305

Abstract: One embodiment of the present invention provides a system for performing DC offset cancellation for a wireless receiver that includes one or more amplification stages between a demodulator and a baseband digital signal processor (DSP). During operation, the system calibrates values of static DC offset associated with a plurality of gain settings for at least one amplification stage, stores the calibrated DC offset values in a lookup table, receives a current gain setting for the amplification stage, maps a DC offset value from the lookup table based on the current gain setting, and cancels static DC offset for the amplification stage using the mapped DC offset value.

Abstract translation: 本发明的一个实施例提供了一种用于对包括解调器和基带数字信号处理器（DSP）之间的一个或多个放大级的无线接收机执行DC偏移消除的系统。 在操作期间，系统校准与至少一个放大级的多个增益设置相关联的静态DC偏移的值，将校准的DC偏移值存储在查找表中，接收用于放大级的当前增益设置，映射DC偏移 基于当前增益设置的查找表的值，并且使用映射的DC偏移值来取消放大级的静态DC偏移。

公开(公告)号：US08706071B2

公开(公告)日：2014-04-22

申请号：US13363083

申请日：2012-01-31

Applicant: Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

IPC: H04B1/26 ,  H04K3/00

CPC classification number: H04B1/0053 ,  H03D7/165 ,  H03D2200/0017 ,  H03D2200/005 ,  H04L27/38

Abstract: One embodiment of the present invention provides a receiver for wireless communication. The receiver includes a demodulator and at least one filtering mechanism coupled to the demodulator, and an analog-to-digital converter (ADC) coupled to the filtering mechanism. The filtering mechanism can be configured to function as a low-pass filter (LPF) or a band-pass filter (BPF), thereby enabling the receiver to function as a direct-conversion receiver or a low-intermediate frequency (low-IF) receiver.

Abstract translation: 本发明的一个实施例提供了一种用于无线通信的接收机。 接收机包括解调器和耦合到解调器的至少一个滤波机构以及耦合到滤波机构的模数转换器（ADC）。 滤波机构可以配置为用作低通滤波器（LPF）或带通滤波器（BPF），从而使接收机能够用作直接转换接收机或低中频（低中频） 接收器。

公开(公告)号：US20140099083A1

公开(公告)日：2014-04-10

申请号：US13645254

申请日：2012-10-04

Applicant: AVIACOMM INC.

Inventor： Tao Li ,  Hans Wang ,  Shih Hsiung Mo ,  Binglei Zhang

IPC: H04N5/92 ,  H04N5/78

CPC classification number: H04N5/921 ,  H04N5/44 ,  H04N5/50 ,  H04N5/775 ,  H04N5/7755 ,  H04N5/781

Abstract: One embodiment of the present invention provides a signal-recording system. During operation, the system receives a wideband multi-channel radio frequency (RF) signal, which includes a plurality of single-channel RF signals modulated at different carrier frequencies. The system down-converts the received wideband multi-channel RF signal to baseband, and records the down-converted signal.

Abstract translation: 本发明的一个实施例提供一种信号记录系统。 在操作期间，系统接收宽带多信道射频（RF）信号，其包括以不同载波频率调制的多个单信道RF信号。 系统将接收到的宽带多频道RF信号下转换为基带，并记录下变频信号。

公开(公告)号：US20130052973A1

公开(公告)日：2013-02-28

申请号：US13300430

申请日：2011-11-18

Applicant: Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang ,  An Hue Ta

Inventor： Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang ,  An Hue Ta

IPC: H04B1/18

CPC classification number: H04B1/18 ,  H04B1/006

Abstract: One embodiment of the present invention provides a receiver for wireless communication. The receiver includes a group of band-pass filters (BPFs), a wideband amplifier coupled to the BPFs, and a tunable demodulator coupled to the wideband amplifier. A particular BPF is configured to filter RF signals at a particular frequency band. The wideband amplifier is configured to amplify the filtered RF signals. The tunable demodulator is configured to demodulate the amplified RF signals.

Abstract translation: 本发明的一个实施例提供了一种用于无线通信的接收机。 接收机包括一组带通滤波器（BPF），耦合到BPF的宽带放大器和耦合到宽带放大器的可调谐解调器。 特定的BPF被配置为对特定频带的RF信号进行滤波。 宽带放大器被配置为放大经滤波的RF信号。 可调谐解调器被配置为解调放大的RF信号。