公开(公告)号：US08731604B2

公开(公告)日：2014-05-20

申请号：US13614029

申请日：2012-09-13

Applicant: Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Claude G. Hayek ,  Frederic Christian Marc Hayem ,  Vafa James Rakshani ,  Hooman Darabi

Inventor： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Claude G. Hayek ,  Frederic Christian Marc Hayem ,  Vafa James Rakshani ,  Hooman Darabi

IPC: H04M1/00 ,  H04B1/40

CPC classification number: H04B1/406

Abstract: An integrated circuit (IC) includes a first processing module that converts inbound data into an inbound digital audio signal and converts an outbound digital audio signal into outbound data. A second processing module performs a user application that includes at least one of generating of an inbound analog audio signal and generating an outbound analog audio signal. A third processing module performs an operating system algorithm to coordinate operation of at least one user application.

Abstract translation: 集成电路（IC）包括将入站数据转换成入站数字音频信号并将出站数字音频信号转换为出站数据的第一处理模块。 第二处理模块执行包括产生入站模拟音频信号和产生出站模拟音频信号中的至少一个的用户应用程序。 第三处理模块执行操作系统算法来协调至少一个用户应用的操作。

公开(公告)号：US08674771B2

公开(公告)日：2014-03-18

申请号：US12765754

申请日：2010-04-22

Applicant: Hooman Darabi

Inventor： Hooman Darabi

IPC: H03L7/00

CPC classification number: H03L7/0898 ,  H03L7/099 ,  H03L7/183 ,  H03L2207/06

Abstract: A local oscillation generator (LO-GEN) maintains a fixed bandwidth using a voltage controlled oscillator (VCO) calibration module and gain calibration module that together compensate for variations in the VCO gain based on the oscillation frequency. During an open loop calibration of the LO-GEN, the VCO calibration module programs the VCO gain to an initial coarse value based on the oscillation frequency and then the gain calibration module adjusts the charge pump current to compensate for VCO gain changes.

Abstract translation: 本地振荡发生器（LO-GEN）使用压控振荡器（VCO）校准模块和增益校准模块来维持固定带宽，该校准模块一起根据振荡频率补偿VCO增益的变化。 在LO-GEN的开环校准期间，VCO校准模块根据振荡频率将VCO增益编程为初始粗略值，然后增益校准模块调整电荷泵电流以补偿VCO增益变化。

公开(公告)号：US08644786B2

公开(公告)日：2014-02-04

申请号：US13613624

申请日：2012-09-13

Applicant: Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

Inventor： Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

IPC: H04B1/26

CPC classification number: H04B1/28 ,  H04B1/123

Abstract: A method and apparatus is disclosed to effectively frequency translate a filter characterized as a low quality factor (Q) filter, corresponding to a baseband frequency of approximately zero Hertz or to an intermediate frequency (IF), to a filter characterized as a high Q filter at frequencies greater than the baseband frequency or the IF. A downconversion mixer frequency translates a communication signal to the baseband frequency or the IF using a first local oscillator signal to provide a downconverted communication signal. A filter corresponding to the baseband frequency or the IF filters the downconverted communication signal to provide a filtered communication signal. An upconversion mixer frequency translates a communication signal using a second local oscillator signal. The frequency translation by the upconversion mixer, in effect, translates the filter characterization from the low Q filter to the high Q filter at frequencies greater than the baseband frequency or the IF.

Abstract translation: 公开了一种方法和装置，用于将表征为低质量因子（Q）滤波器的滤波器频率转换成对应于近似零赫兹的基带频率或中频（IF）的滤波器，其特征在于高Q滤波器 在大于基带频率或IF的频率处。 下变频混频器使用第一本地振荡器信号将通信信号转换为基带频率或IF，以提供下变频的通信信号。 对应于基带频率的滤波器或IF对经下变频的通信信号进行滤波以提供经滤波的通信信号。 上变频混频器使用第二本地振荡器信号来转换通信信号。 通过上变频混频器进行的频率转换实际上将滤波器特性从低Q滤波器转换为高于基带频率或IF的频率的高Q滤波器。

公开(公告)号：US08565710B2

公开(公告)日：2013-10-22

申请号：US13076262

申请日：2011-03-30

Applicant: Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

Inventor： Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

IPC: H04B1/40 ,  H04B1/10

CPC classification number: H03H7/40 ,  H03H19/008 ,  H04B2001/0491 ,  H04W88/02

Abstract: A SAW-less transmitter includes an up-conversion mixing module, a frequency translated BPF (FTBPF), an output module, and a power amplifier driver. The up-conversion mixing module converts an outbound symbol stream into an up-converted signal. The FTBPF frequency translates a baseband filter response to an RF bandpass filter response and filter the up-converted signal in accordance with the RF bandpass filter response to produce a filtered up-converted signal. The output module conditions the filtered up-converted signal to produce a conditioned up-converted signal. The power amplifier driver amplifies the conditioned up-converted signal to produce an outbound RF signal.

Abstract translation: 无SAW发射机包括上变频混频模块，频率转换BPF（FTBPF），输出模块和功率放大器驱动器。 上变频混频模块将出站符号流转换为上变频信号。 FTBPF频率将基带滤波器响应转换为RF带通滤波器响应，并根据RF带通滤波器响应对上变频信号进行滤波，以产生滤波的上变频信号。 输出模块对滤波的上变频信号进行调节，以产生调节的上变频信号。 功率放大器驱动器放大经调节的上变频信号以产生出站RF信号。

公开(公告)号：US20130272349A1

公开(公告)日：2013-10-17

申请号：US13448980

申请日：2012-04-17

Applicant: Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

Inventor： Ahmad Mirzaei ,  Mohyee Mikhemar ,  Hooman Darabi

IPC: H04L25/49 ,  H04B1/38

CPC classification number: H04B1/525 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425

Abstract: A circuit includes a local oscillator of a transmitter, the local oscillator to generate a transmitter local oscillator signal. A switch controlled by the transmitter local oscillator signal connects with a baseband impedance element to generate a notch frequency signal. The notch frequency signal is added to a transmitter leakage signal to attenuate the transmitter leakage signal prior to demodulation of a desired receiver signal by a receiver.

Abstract translation: 电路包括发射机的本地振荡器，本地振荡器产生发射机本地振荡器信号。 由发射机本地振荡器信号控制的开关与基带阻抗元件连接以产生陷波频率信号。 陷波频率信号被添加到发射机泄漏信号，以在由接收机解调期望的接收机信号之前衰减发射机泄漏信号。

公开(公告)号：US08548077B2

公开(公告)日：2013-10-01

申请号：US13241446

申请日：2011-09-23

Applicant: Ahmadreza (Reza) Rofougaran ,  Hooman Darabi

Inventor： Ahmadreza (Reza) Rofougaran ,  Hooman Darabi

IPC: H04L27/14 ,  H04B1/06

CPC classification number: H04B1/001 ,  H03H19/00 ,  H03H2015/007 ,  H04B1/0028

Abstract: A receiver includes a sample and hold module, a discrete time filter module, and a conversion module. The sample and hold module is operable to sample and hold a first inbound wireless signal and a second inbound wireless signal to produce a frequency domain sample pulse train. The discrete time filter module is operable to filter the frequency domain sample pulse train to produce a first filtered sample pulse corresponding to the first inbound wireless signal and to produce a second filtered sample pulse corresponding to the second inbound wireless signal. The conversion module is operable to convert the first filtered sample pulse into a first inbound baseband signal and to convert the second filtered sample pulse into a second inbound baseband signal.

Abstract translation: 接收机包括采样和保持模块，离散时间滤波器模块和转换模块。 采样和保持模块可操作以采样和保持第一入站无线信号和第二入站无线信号以产生频域采样脉冲串。 离散时间滤波器模块可操作以对频域采样脉冲串进行滤波以产生对应于第一入站无线信号的第一滤波采样脉冲，并产生对应于第二入站无线信号的第二滤波采样脉冲。 转换模块可操作以将第一滤波采样脉冲转换为第一入站基带信号并将第二滤波采样脉冲转换为第二入站基带信号。

公开(公告)号：US20130241669A1

公开(公告)日：2013-09-19

申请号：US13419631

申请日：2012-03-14

Applicant: Mohyee Mikhemar ,  Hooman Darabi

Inventor： Mohyee Mikhemar ,  Hooman Darabi

IPC: H01P5/12 ,  H03H7/38 ,  H03F1/08

CPC classification number: H04B1/52 ,  H04B1/005 ,  H04B1/525 ,  H04B1/581

Abstract: A duplexing system may be used with an electronic device. The duplexing system may include a duplexer connected with an antenna. The duplexing system may include a balancing network. The balancing network may be connected with the duplexer, have an adjustable network impedance, and include an active component. The balancing network may be configured to adjust the network impedance to match an antenna impedance of the antenna.

Abstract translation: 双工系统可以与电子设备一起使用。 双工系统可以包括与天线连接的双工器。 双工系统可以包括平衡网络。 平衡网络可以与双工器连接，具有可调整的网络阻抗，并且包括有源组件。 平衡网络可以被配置为调整网络阻抗以匹配天线的天线阻抗。

公开(公告)号：US08520786B2

公开(公告)日：2013-08-27

申请号：US13241400

申请日：2011-09-23

Applicant: Ahmadreza (Reza) Rofougaran ,  Hooman Darabi

Inventor： Ahmadreza (Reza) Rofougaran ,  Hooman Darabi

IPC: H04B1/10 ,  H04L27/06

CPC classification number: H04B1/001 ,  H03H19/00 ,  H03H2015/007 ,  H04B1/0028

Abstract: A receiver includes a sample and hold module, a discrete time filter module, and a conversion module. The sample and hold module includes a sample switching module, an impedance module, and a hold switching module. The sample switching module outputs samples of an inbound wireless signal in accordance with a sampling clock signal. The impedance module temporarily stores the samples. The hold switching module outputs a filtered representation of the samples in accordance with a hold clock signal to produce a frequency domain sample pulse train, wherein a filter response of the sample and hold module is in accordance with a ratio between the sampling clock signal and the hold clock signal. The discrete time filter module, which may be programmable, filters the frequency domain sample pulse train. The conversion module, which may be programmable, converts the filtered sample pulse into an inbound baseband signal.

Abstract translation: 接收机包括采样和保持模块，离散时间滤波器模块和转换模块。 采样和保持模块包括采样开关模块，阻抗模块和保持开关模块。 采样切换模块根据采样时钟信号输入入站无线信号的采样。 阻抗模块临时存储样品。 保持切换模块根据保持时钟信号输出采样的滤波表示，以产生频域采样脉冲序列，其中采样和保持模块的滤波器响应与采样时钟信号和 保持时钟信号。 可以编程的离散时间滤波器模块对频域采样脉冲串进行滤波。 可编程的转换模块将滤波的采样脉冲转换成入站基带信号。

公开(公告)号：US08502626B2

公开(公告)日：2013-08-06

申请号：US12727314

申请日：2010-03-19

Applicant: Mohyee Mikhemar ,  Hooman Darabi

Inventor： Mohyee Mikhemar ,  Hooman Darabi

IPC: H03H11/08 ,  H04B1/38

CPC classification number: H03H11/42 ,  H03H11/32 ,  H03H11/342 ,  H04B5/0093 ,  H04B2001/485

Abstract: An RF front-end with on-chip transmitter/receiver isolation using a gyrator is presented herein. The RF front end is configured to support full-duplex communication and includes a gyrator and a transformer. The gyrator includes a metal plate and an inductor that are configured to isolate the input of a low-noise amplifier (LNA) from the output of a power amplifier (PA) using the Hall effect. The gyrator is further configured to isolate the output of the PA from the input of the LNA. The gyrator is at least partially or fully capable of being integrated on silicon-based substrate.

Abstract translation: 本文介绍了使用回转器的片内发射机/接收机隔离的RF前端。 RF前端被配置为支持全双工通信，并且包括回转器和变压器。 回转器包括金属板和电感器，其被配置为使用霍尔效应将低噪声放大器（LNA）的输入与功率放大器（PA）的输出隔离。 回转器还被配置为将PA的输出与LNA的输入隔离。 回转器至少部分或完全能够集成在硅基基板上。

公开(公告)号：US08487406B2

公开(公告)日：2013-07-16

申请号：US13236536

申请日：2011-09-19

Applicant: Hooman Darabi ,  Qiang Li ,  Bo Zhang

Inventor： Hooman Darabi ,  Qiang Li ,  Bo Zhang

IPC: H01L21/02

CPC classification number: H01L28/40 ,  H01L23/5223 ,  H01L27/0805 ,  H01L28/87 ,  H01L28/91 ,  H01L29/93 ,  H01L29/94 ,  H01L2924/0002 ,  H01L2924/00

Abstract: At least a first capacitor is formed on a substrate and connected to a first differential node of a differential circuit, and the first capacitor may be variable in capacitance. A second capacitor is formed on the substrate and connected to a second differential node of the differential circuit, and the second capacitor also may be variable. A third capacitor is connected between the first differential node and the second differential node, and is formed at least partially above the first capacitor. In this way, a size of the first capacitor and/or the second capacitor may be reduced on the substrate, and capacitances of the first and/or second capacitor(s) may be adjusted in response to a variable characteristic of one or more circuit components of the differential circuit.

Abstract translation: 至少第一电容器形成在衬底上并连接到差分电路的第一差分节点，并且第一电容器可以是可变电容的。 第二电容器形成在衬底上并连接到差分电路的第二差分节点，并且第二电容器也可以是可变的。 第三电容器连接在第一差分节点和第二差分节点之间，并且至少部分地形成在第一电容器的上方。 以这种方式，可以在衬底上减小第一电容器和/或第二电容器的尺寸，并且可以响应于一个或多个电路的可变特性来调整第一和/或第二电容器的电容 差分电路的组件。