公开(公告)号：US6094084A

公开(公告)日：2000-07-25

申请号：US148135

申请日：1998-09-04

Applicant: Eyad Abou-Allam ,  Tajinder Manku ,  Michael Maliepaard

Inventor： Eyad Abou-Allam ,  Tajinder Manku ,  Michael Maliepaard

IPC: H03D7/14 ,  G06F7/44

CPC classification number: H03F1/223 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03F3/45192 ,  H03D2200/0043 ,  H03D2200/0084 ,  H03F2203/45296 ,  H03F2203/45316 ,  H03F2203/45386 ,  H03F2203/45501 ,  H03F2203/45554

Abstract: A low voltage cascode frequency conversion mixer circuit is provided. In place of a conventional current source, an LC tank circuit is used. This makes the circuit function as a mixer only over a narrow band of frequencies centred at the resonance frequency of the LC tank circuit. The circuit mixes an input signal with a local oscillator signal. Advantageously, a lower supply voltage may be used because a smaller DC drop exists across the tank circuit than does across conventional current sources. The circuit may also be used as an amplifier by connecting a DC bias voltage in place of the local oscillator.

Abstract translation: 提供了一种低压共源共栅变频混频电路。 代替常规电流源，使用LC电路。 这使得电路仅在以LC谐振电路的谐振频率为中心的窄频带上作为混频器。 该电路将输入信号与本地振荡器信号混合。 有利的是，可以使用较低的电源电压，因为在整个电路上存在比常规电流源更小的直流电压降。 该电路也可以通过连接DC偏置电压代替本地振荡器而用作放大器。

公开(公告)号：US08847834B2

公开(公告)日：2014-09-30

申请号：US13470472

申请日：2012-05-14

Applicant: Tajinder Manku

Inventor： Tajinder Manku

IPC: H01Q9/00

CPC classification number: G01S13/756 ,  G06K19/0723 ,  G06K19/0726 ,  G06K19/07786

Abstract: An antenna apparatus for backscattering an incoming radio frequency (RF) signal includes an antenna for backscattering the incoming RF signal in accordance with a reflection coefficient characteristic of the antenna. A variable impedance circuit includes an output electrically connected to the antenna. A band-pass delta sigma modulator is coupled to the variable impedance circuit and digitally controls the output of the variable impedance circuit, such that the reflection coefficient of the antenna is adjusted based on the digitally controlled output of the variable impedance circuit. In an RFID network, the apparatus and method reduces the effect of DC offset in the reader device and the effects of the reader device's phase noise, while allowing for complex modulations.

Abstract translation: 用于向后向散射输入射频（RF）信号的天线装置包括用于根据天线的反射系数特性来反向散射输入RF信号的天线。 可变阻抗电路包括电连接到天线的输出。 带通ΔΣ调制器耦合到可变阻抗电路，并且数字地控制可变阻抗电路的输出，使得基于可变阻抗电路的数字控制输出来调整天线的反射系数。 在RFID网络中，该装置和方法减少了读取器装置中DC偏移的影响以及读取器装置的相位噪声的影响，同时允许复杂的调制。

公开(公告)号：US20140029480A1

公开(公告)日：2014-01-30

申请号：US13557507

申请日：2012-07-25

Applicant: Tajinder MANKU ,  Zohaib MOTI

Inventor： Tajinder MANKU ,  Zohaib MOTI

IPC: H04B1/44

CPC classification number: H04B1/525

Abstract: A radio transceiver including a transmitter and a receiver. A filter coupled to an output of the transmitter, the filter has one or more inductors and one or more capacitors, where the filter is tuned by varying one or more capacitance values of the one or more capacitors in the filter to tune the filter. The one or more capacitors are Barium Strontium Titanate (BST) ceramic integrated capacitors that are each tuned by application of a bias voltage thereto. A filter tuner circuit is configured to apply the bias voltage to the one or more capacitors, where the bias voltage is initially established as a stored initial value, and where the bias voltage is refined by a proportional-integral-derivative (PID) controller configured to optimize a power within the transceiver. This abstract is not to be considered limiting since various implementations may incorporate more, fewer or different elements.

Abstract translation: 包括发射机和接收机的无线电收发机。 滤波器耦合到发射机的输出端，滤波器具有一个或多个电感器和一个或多个电容器，其中滤波器通过改变滤波器中的一个或多个电容器的一个或多个电容值来调谐，以调谐滤波器。 一个或多个电容器是通过施加偏置电压来调整的钡钡酸钡（BST）陶瓷集成电容器。 滤波器调谐器电路被配置为将偏置电压施加到一个或多个电容器，其中偏置电压最初被建立为存储的初始值，并且偏置电压由比例积分微分（PID）控制器精调 以优化收发器内的功率。 该摘要不被认为是限制性的，因为各种实现可以包含更多，更少或不同的元素。

公开(公告)号：US20130324033A1

公开(公告)日：2013-12-05

申请号：US13482083

申请日：2012-05-29

Applicant: Tajinder MANKU

Inventor： Tajinder MANKU

IPC: H04B5/00

CPC classification number: H04B5/0062 ,  G06K19/0723 ,  H04B5/0075 ,  H04B5/0081

Abstract: An inductive coupling apparatus for modifying an incoming radio frequency (RF) signal includes an inductive element. A variable impedance circuit includes an output electrically coupled to the inductive element. A band-pass delta sigma modulator is coupled to the variable impedance circuit and digitally controls the output of the variable impedance circuit. The incoming RF signal is modified as the coupled impedance of the inductive element is adjusted in accordance with the output of the variable impedance circuit.

Abstract translation: 用于修改输入射频（RF）信号的电感耦合装置包括电感元件。 可变阻抗电路包括电耦合到电感元件的输出端。 带通ΔΣ调制器耦合到可变阻抗电路并数字地控制可变阻抗电路的输出。 随着可变阻抗电路的输出调整电感元件的耦合阻抗，输入RF信号被修改。

公开(公告)号：US20130299579A1

公开(公告)日：2013-11-14

申请号：US13470709

申请日：2012-05-14

Applicant: Tajinder MANKU

Inventor： Tajinder MANKU

IPC: H01Q1/50 ,  G06K7/00

CPC classification number: H01Q1/2225 ,  G06K19/0701 ,  G06K19/0723

Abstract: An antenna apparatus for backscattering an incoming radio frequency (RF) signal includes an antenna for backscattering the incoming RF signal in accordance with a reflection coefficient characteristic of the antenna. A variable impedance circuit includes an output electrically connected to the antenna. A low pass delta sigma modulator is coupled to the variable impedance circuit and digitally controls the output of the variable impedance circuit, such that the reflection coefficient of the antenna is adjusted based on the output of the variable impedance circuit.

Abstract translation: 用于向后向散射输入射频（RF）信号的天线装置包括用于根据天线的反射系数特性来反向散射输入RF信号的天线。 可变阻抗电路包括电连接到天线的输出。 低通量ΔΣ调制器耦合到可变阻抗电路，并且数字地控制可变阻抗电路的输出，使得基于可变阻抗电路的输出来调节天线的反射系数。

公开(公告)号：US20120120962A1

公开(公告)日：2012-05-17

申请号：US13004652

申请日：2011-01-11

Applicant: Lily Ll ,  Nicholas Armstrong ,  Robert Robinson ,  Jakub Schmidtke ,  Tajinder Manku ,  Paul Ward

Inventor： Lily Ll ,  Nicholas Armstrong ,  Robert Robinson ,  Jakub Schmidtke ,  Tajinder Manku ,  Paul Ward

IPC: H04L12/56

CPC classification number: H04W12/06 ,  H04L63/18

Abstract: A system is provided to facilitate communication with a client via both a first network and a second network. The system comprises a plurality of bandwidth aggregation servers, each bandwidth aggregation server configured to aggregate data packets received from the client via both the first and second networks for transmission to a destination server; and transmit data packets to the client via both the first and second networks in accordance with a scheduling algorithm, the data packets being received from a source server.

Abstract translation: 提供一种系统以便于经由第一网络和第二网络与客户端进行通信。 该系统包括多个带宽聚合服务器，每个带宽聚合服务器被配置为经由第一和第二网络聚合从客户端接收的数据分组，用于传输到目的地服务器; 并且根据调度算法，通过第一和第二网络将数据分组发送到客户端，数据分组从源服务器接收。

公开(公告)号：US07623000B2

公开(公告)日：2009-11-24

申请号：US11778849

申请日：2007-07-17

Applicant: Tajinder Manku ,  Abdellatif Bellaouar

Inventor： Tajinder Manku ,  Abdellatif Bellaouar

IPC: H04L27/20 ,  H04L27/36

CPC classification number: H03C5/00

Abstract: The invention is directed at a hybrid modulation apparatus which combines a polar modulation circuit and a linear modulation circuit. The hybrid apparatus allows a communications device to function as a polar or a linear modulation circuit with less components as the output of the linear modulation circuit is an input of the polar modulation circuit.

Abstract translation: 本发明涉及组合极性调制电路和线性调制电路的混合调制装置。 混合设备允许通信设备用作具有较少组件的极性或线性调制电路，因为线性调制电路的输出是极坐标调制电路的输入。

公开(公告)号：US20090021321A1

公开(公告)日：2009-01-22

申请号：US11778849

申请日：2007-07-17

Applicant: Tajinder MANKU ,  Abdellatif BELLAOUAR

Inventor： Tajinder MANKU ,  Abdellatif BELLAOUAR

IPC: H03C1/00

CPC classification number: H03C5/00

Abstract: The invention is directed at a hybrid modulation apparatus which combines a polar modulation circuit and a linear modulation circuit. The hybrid apparatus allows a communications device to function as a polar or a linear modulation circuit with less components as the output of the linear modulation circuit is an input of the polar modulation circuit.

Abstract translation: 本发明涉及组合极性调制电路和线性调制电路的混合调制装置。 混合设备允许通信设备用作具有较少组件的极性或线性调制电路，因为线性调制电路的输出是极坐标调制电路的输入。

公开(公告)号：US20080014894A1

公开(公告)日：2008-01-17

申请号：US11569031

申请日：2005-05-13

Applicant: Tajinder Manku ,  Masoud Kahrizi

Inventor： Tajinder Manku ,  Masoud Kahrizi

IPC: H04B1/26

CPC classification number: H04B1/30 ,  H03D7/00 ,  H04B15/06 ,  H04B2215/065

Abstract: A method and system for dynamically shifting spurious tones away from the desired frequency in a virtual local oscillator receiver, such that any undesired signal residing at such spurious tones are effectively delineated from the desired signal and removed from the RF input signal. The system detects the presence of potential undesired blocker signals in the RF input signal, and initiates an iterative power comparison and mixer signal adjustment loop. As the virtual local oscillator uses two mixer signals, the frequency of one of the mixer signals is adjusted during the loop until the power of the down-converted signal is minimized to a predetermined level. Minimized power in the down-converted signal is indicative of the absence of the blocker signal, since the presence of a relatively high power signal is indicative of a blocker signal overlapping with a desired signal.

Abstract translation: 一种用于在虚拟本地振荡器接收机中动态地将杂散音调从期望频率移位的方法和系统，使得驻留在这种寄生音调处的任何不需要的信号被有效地从期望的信号中描绘出并从RF输入信号中去除。 该系统检测RF输入信号中存在潜在的不希望的阻塞信号，并启动迭代功率比较和混频信号调节环路。 由于虚拟本地振荡器使用两个混频器信号，所以在环路中调整混频信号之一的频率，直到下变频信号的功率被最小化到预定电平。 下变频信号中的最小化功率表示不存在阻塞信号，因为相对高功率信号的存在表示阻塞信号与期望信号重叠。

公开(公告)号：US07277683B2

公开(公告)日：2007-10-02

申请号：US10541120

申请日：2004-01-08

Applicant: Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

Inventor： Sathwant Dosanjh ,  William Kung ,  Tajinder Manku

IPC: H04B1/16

CPC classification number: H03B21/00 ,  H03B21/01 ,  H03B27/00 ,  H03D3/007 ,  H03H7/21 ,  H03H2007/0192 ,  H03J2200/17 ,  H03J2200/40 ,  H04B1/30

Abstract: The present invention relates generally to communications, and more specifically to a method and apparatus for generating local oscillator signals used for up- and down-conversion of RF (radio frequency) signals. A major problem in the design of modulators and demodulators, if the leakage of local oscillator (LO) signals into the received signal path. The invention presents a number of highly integratable circuits which resolve the LO leakage problem, using regenerative divider circuits acting on oscillator signals which are running at a multiple or fraction of the frequency of the desired LO signal, to generate in-phase (I) and quadrature (Q) mixing signals. Embodiments of these circuits also use harmonic subtraction and polyphase mixers, as well as virtual local oscillator TM (VLO) mixing signals. VLO mixing signals are signal pairs which emulate local oscillator signals by means of complementary mono-tonal and multi-tonal mixing signals.

Abstract translation: 本发明一般涉及通信，更具体地涉及用于产生用于RF（射频）信号的上变频和下变频的本地振荡器信号的方法和装置。 如果本地振荡器（LO）信号泄漏到接收信号路径中，调制器和解调器的设计中的主要问题。 本发明提出了许多高度可积分的电路，其解决了LO泄漏问题，使用作用于振荡器信号的再生分压器电路，该振荡器信号以期望LO信号的频率的多个或几分之一运行，以产生同相（I）和 正交（Q）混频信号。 这些电路的实施例也使用谐波减法和多相混频器，以及虚拟本地振荡器TM（VLO）混频信号。 VLO混合信号是通过互补单声道和多音调混合信号模拟本地振荡器信号的信号对。