公开(公告)号：US20120258660A1

公开(公告)日：2012-10-11

申请号：US13083598

申请日：2011-04-11

Applicant: Gireesh Rajendran ,  Apu Sivadas ,  Yogesh Darwhekar ,  Vivek Dham

Inventor： Gireesh Rajendran ,  Apu Sivadas ,  Yogesh Darwhekar ,  Vivek Dham

IPC: H04B5/00

CPC classification number: H04B5/0081 ,  H01Q7/00 ,  H04B1/0053 ,  H04B5/0031

Abstract: A circuit includes an antenna, and a pair of transceivers. A first transceiver in the pair is connected to the antenna via a first pair of feed-points, and is designed to transmit and receive signals in a first band of frequencies. A second transceiver in the pair is connected to the antenna via a second pair of feed-points, and is designed to transmit and receive signals in a second band of frequencies. The first band and the second band are non-overlapping frequency bands. The first pair of feed-points is located at a voltage null point of the antenna with respect to the second pair of feed-points. The second pair of feed-points is located at a voltage null point of the antenna with respect to the first pair of feed-points. The first transceiver and the second transceiver are, thus, enabled to simultaneously transmit and/or receive corresponding signals using the same antenna.

Abstract translation: 电路包括天线和一对收发器。 该对中的第一收发器经由第一对馈电点连接到天线，并被设计成在第一频带中发射和接收信号。 该对中的第二收发器经由第二对馈电点连接到天线，并被设计成在第二频带中发射和接收信号。 第一频带和第二频带是非重叠频带。 第一对馈电点位于天线相对于第二对馈电点的电压零点。 第二对馈电点位于天线相对于第一对馈电点的电压零点。 因此，第一收发器和第二收发器能够使用相同的天线同时发送和/或接收相应的信号。

公开(公告)号：US20110051639A1

公开(公告)日：2011-03-03

申请号：US12546867

申请日：2009-08-25

Applicant: Sthanunathan Ramakrishnan ,  Bijoy Bhukania ,  Jawaharlal Tangudu ,  Sarma S. Gunturi ,  Jaiganesh Balakrishnan ,  Rakesh Kumar ,  Abhijit Kumar Das ,  Yogesh Darwhekar

Inventor： Sthanunathan Ramakrishnan ,  Bijoy Bhukania ,  Jawaharlal Tangudu ,  Sarma S. Gunturi ,  Jaiganesh Balakrishnan ,  Rakesh Kumar ,  Abhijit Kumar Das ,  Yogesh Darwhekar

IPC: G08C17/02 ,  H04L27/00

CPC classification number: H04L12/12 ,  H04W24/00 ,  H04W28/18 ,  H04W52/028 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/23

Abstract: A receiver in a packet based communication system includes a programmable block and a detection block that detects at least one of an operating condition of the receiver and a protocol condition of the communication system. Further, the receiver includes a control circuit coupled to the programmable block that controls the programmable block to transition to a set of radio modes according to at least one of the operating condition and the protocol condition.

Abstract translation: 基于分组的通信系统中的接收机包括可编程块和检测接收机的操作条件和通信系统的协议状态中的至少一个的检测块。 此外，接收机包括耦合到可编程块的控制电路，其根据操作条件和协议条件中的至少一个控制可编程块向一组无线电模式转变。

公开(公告)号：US08725088B2

公开(公告)日：2014-05-13

申请号：US12753966

申请日：2010-04-05

Applicant: Brian Paul Ginsburg ,  Gangadhar Burra ,  Assaf Sella ,  Subhashish Mukherjee ,  Gireesh Rajendran ,  Yogesh Darwhekar ,  Apu Sivadas

Inventor： Brian Paul Ginsburg ,  Gangadhar Burra ,  Assaf Sella ,  Subhashish Mukherjee ,  Gireesh Rajendran ,  Yogesh Darwhekar ,  Apu Sivadas

IPC: H04B1/44

CPC classification number: G06K19/0723 ,  G06K7/10237 ,  G06K19/0724 ,  G06K19/0726 ,  H01Q1/2291 ,  H01Q1/242 ,  H01Q7/00 ,  H04B5/0031 ,  H04B5/0081

Abstract: A single-antenna solution is provided for near-field and far-field communication in wireless devices. In an embodiment, a first transceiver block generates a first transmit signal to be transmitted using radiative techniques. A second transceiver block generates a second transmit signal to be transmitted using inductive coupling. The first and second transceiver blocks are coupled to a same antenna for transmitting the first transmit signal using radiative coupling, and the second transmit signal using inductive coupling. The first transceiver block and the second transceiver block operate according to time division multiplexing, and in an embodiment corresponding to an FM transceiver and an NFC transceiver.

Abstract translation: 为无线设备中的近场和远场通信提供单天线解决方案。 在一个实施例中，第一收发器块产生要使用辐射技术传输的第一发射信号。 第二收发器块利用电感耦合产生要传输的第二发射信号。 第一和第二收发器模块耦合到相同的天线，用于使用辐射耦合传输第一发射信号，并且使用电感耦合来耦合第二发射信号。 第一收发器模块和第二收发器模块根据时分多路复用操作，并且在对应于FM收发器和NFC收发器的实施例中操作。

公开(公告)号：US08058902B1

公开(公告)日：2011-11-15

申请号：US12813527

申请日：2010-06-11

Applicant: Sahil Khurana ,  Vivek Singhal ,  Yogesh Darwhekar

Inventor： Sahil Khurana ,  Vivek Singhal ,  Yogesh Darwhekar

IPC: G06F7/38 ,  G06F1/12 ,  G06F13/42 ,  H03K19/0175 ,  H01L5/00 ,  H01L7/00

CPC classification number: G06F1/12

Abstract: A circuit for aligning input signals includes a clock generating circuit (CGC) responsive to first signal and second signal to generate a clock signal. A first flip flop and a second flip flop, coupled to the CGC, are responsive to first type of edge of the clock signal to output the first signal and the second signal. A finite state machine (FSM), coupled to the CGC, the first flip flop and the second flip flop, is responsive to second type of edge of the clock signal to detect early arrival of one of the first signal and the second signal with respect to each other, and to generate first control signal and second control signal. A first programmable delay element and a second programmable delay element, coupled to the FSM, delays first input signal based on the first control signal and second input signal based on the second control signal.

Abstract translation: 用于对准输入信号的电路包括响应于第一信号和第二信号的时钟发生电路（CGC）以产生时钟信号。 耦合到CGC的第一触发器和第二触发器响应于时钟信号的第一类型的边沿以输出第一信号和第二信号。 耦合到CGC的第一触发器和第二触发器的有限状态机（FSM）响应于时钟信号的第二类型的边缘来检测第一信号和第二信号中的一个的早期到达，相对于 并且产生第一控制信号和第二控制信号。 耦合到FSM的第一可编程延迟元件和第二可编程延迟元件基于第一控制信号和基于第二控制信号的第二输入信号来延迟第一输入信号。

公开(公告)号：US08824977B2

公开(公告)日：2014-09-02

申请号：US13083598

申请日：2011-04-11

Applicant: Gireesh Rajendran ,  Apu Sivadas ,  Yogesh Darwhekar ,  Vivek Dham

Inventor： Gireesh Rajendran ,  Apu Sivadas ,  Yogesh Darwhekar ,  Vivek Dham

IPC: H04B5/00 ,  H04B1/46 ,  H04M1/00 ,  H01Q7/00 ,  H04B1/00

CPC classification number: H04B5/0081 ,  H01Q7/00 ,  H04B1/0053 ,  H04B5/0031

Abstract: A circuit includes an antenna, and a pair of transceivers. A first transceiver in the pair is connected to the antenna via a first pair of feed-points, and is designed to transmit and receive signals in a first band of frequencies. A second transceiver in the pair is connected to the antenna via a second pair of feed-points, and is designed to transmit and receive signals in a second band of frequencies. The first band and the second band are non-overlapping frequency bands. The first pair of feed-points is located at a voltage null point of the antenna with respect to the second pair of feed-points. The second pair of feed-points is located at a voltage null point of the antenna with respect to the first pair of feed-points. The first transceiver and the second transceiver are, thus, enabled to simultaneously transmit and/or receive corresponding signals using the same antenna.

Abstract translation: 电路包括天线和一对收发器。 该对中的第一收发器经由第一对馈电点连接到天线，并被设计成在第一频带中发射和接收信号。 该对中的第二收发器经由第二对馈电点连接到天线，并被设计成在第二频带中发射和接收信号。 第一频带和第二频带是非重叠频带。 第一对馈电点位于天线相对于第二对馈电点的电压零点。 第二对馈电点位于天线相对于第一对馈电点的电压零点。 因此，第一收发器和第二收发器能够使用相同的天线同时发送和/或接收相应的信号。

公开(公告)号：US20120064826A1

公开(公告)日：2012-03-15

申请号：US12879008

申请日：2010-09-10

Applicant: Yogesh Darwhekar ,  Alok Prakash Joshi ,  Gireesh Rajendran ,  Subhashish Mukherjee ,  Apu Sivadas

Inventor： Yogesh Darwhekar ,  Alok Prakash Joshi ,  Gireesh Rajendran ,  Subhashish Mukherjee ,  Apu Sivadas

IPC: H04B5/00

CPC classification number: H04B5/0031 ,  H04B5/0081

Abstract: A near field communication (NFC) transceiver contains a transmitter portion to generate a transmit wireless signal, and a receiver portion to receive and process a receive wireless signal. The circuit further contains a shunt capacitor, a switch, and an antenna interface to couple the transmitter portion and the receiver portion to an antenna designed to communicate with external antennas by inductive coupling. The switch couples the shunt capacitor in parallel with the antenna in one operational mode, and decouples the shunt capacitor from the antenna in another operational mode. Transmit and receive performance of the NFC transceiver are enhanced as a result.

Abstract translation: 近场通信（NFC）收发器包含用于产生发射无线信号的发射机部分和接收和处理接收无线信号的接收机部分。 该电路还包括分流电容器，开关和天线接口，用于将发射器部分和接收器部分耦合到设计成通过电感耦合与外部天线通信的天线。 开关在一个操作模式下将分流电容器与天线并联，并在另一种工作模式下将并联电容器与天线分离。 结果，增强了NFC收发器的发送和接收性能。

公开(公告)号：US20110243120A1

公开(公告)日：2011-10-06

申请号：US12753966

申请日：2010-04-05

Applicant: Brian Paul Ginsburg ,  Gangadhar Burra ,  Assaf Sella ,  Subhashish Mukherjee ,  Gireesh Rajendran ,  Yogesh Darwhekar ,  Apu Sivadas

Inventor： Brian Paul Ginsburg ,  Gangadhar Burra ,  Assaf Sella ,  Subhashish Mukherjee ,  Gireesh Rajendran ,  Yogesh Darwhekar ,  Apu Sivadas

IPC: H04J3/00 ,  H04B5/00

CPC classification number: G06K19/0723 ,  G06K7/10237 ,  G06K19/0724 ,  G06K19/0726 ,  H01Q1/2291 ,  H01Q1/242 ,  H01Q7/00 ,  H04B5/0031 ,  H04B5/0081

Abstract: A single-antenna solution is provided for near-field and far-field communication in wireless devices. In an embodiment, a first transceiver block generates a first transmit signal to be transmitted using radiative techniques. A second transceiver block generates a second transmit signal to be transmitted using inductive coupling. The first and second transceiver blocks are coupled to a same antenna for transmitting the first transmit signal using radiative coupling, and the second transmit signal using inductive coupling. The first transceiver block and the second transceiver block operate according to time division multiplexing, and in an embodiment corresponding to an FM transceiver and an NFC transceiver.

Abstract translation: 为无线设备中的近场和远场通信提供单天线解决方案。 在一个实施例中，第一收发器块产生要使用辐射技术传输的第一发射信号。 第二收发器块利用电感耦合产生要传输的第二发射信号。 第一和第二收发器模块耦合到相同的天线，用于使用辐射耦合传输第一发射信号，并且使用电感耦合来耦合第二发射信号。 第一收发器模块和第二收发器模块根据时分多路复用操作，并且在对应于FM收发器和NFC收发器的实施例中操作。

公开(公告)号：US08824597B2

公开(公告)日：2014-09-02

申请号：US13606415

申请日：2012-09-07

Applicant: Yogesh Darwhekar ,  Vikas Singh ,  Ronen Issac ,  Matan Ben-Shachar

Inventor： Yogesh Darwhekar ,  Vikas Singh ,  Ronen Issac ,  Matan Ben-Shachar

IPC: H04L27/00

CPC classification number: H04B5/0025 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723

Abstract: Several circuits and methods for field-based communication are provided. In an embodiment, a field-based communication circuit includes a receiver circuit, a detection circuit and a control circuit. The receiver circuit is configured to receive a field input signal from a field source. The detection circuit includes a voltage detection circuit and a current detection circuit configured to detect a voltage signal and a current signal, respectively associated with the field input signal. The control circuit is configured to trigger a selection of one of the voltage detection circuit and the current detection circuit based on a detection of a signal magnitude of one of the voltage signal and the current signal relative to at least a first predetermined threshold level, wherein the selection of one of the voltage detection circuit and the current detection circuit facilitates a demodulation of one of the voltage signal and the current signal.

Abstract translation: 提供了几种用于现场通信的电路和方法。 在一个实施例中，基于场的通信电路包括接收器电路，检测电路和控制电路。 接收器电路被配置为从场源接收场输入信号。 检测电路包括电压检测电路和电流检测电路，其被配置为检测分别与场输入信号相关联的电压信号和电流信号。 控制电路被配置为基于相对于至少第一预定阈值电平检测电压信号和电流信号之一的信号幅度来触发电压检测电路和电流检测电路之一的选择，其中， 电压检测电路和电流检测电路之一的选择有助于电压信号和电流信号之一的解调。

公开(公告)号：US20140070850A1

公开(公告)日：2014-03-13

申请号：US13606415

申请日：2012-09-07

Applicant: Yogesh Darwhekar ,  Vikas Singh ,  Ronen Issac ,  Matan Ben-Shachr

Inventor： Yogesh Darwhekar ,  Vikas Singh ,  Ronen Issac ,  Matan Ben-Shachr

IPC: H03K5/00

CPC classification number: H04B5/0025 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723

Abstract: Several circuits and methods for field-based communication are provided. In an embodiment, a field-based communication circuit includes a receiver circuit, a detection circuit and a control circuit. The receiver circuit is configured to receive a field input signal from a field source. The detection circuit includes a voltage detection circuit and a current detection circuit configured to detect a voltage signal and a current signal, respectively associated with the field input signal. The control circuit is configured to trigger a selection of one of the voltage detection circuit and the current detection circuit based on a detection of a signal magnitude of one of the voltage signal and the current signal relative to at least a first predetermined threshold level, wherein the selection of one of the voltage detection circuit and the current detection circuit facilitates a demodulation of one of the voltage signal and the current signal.

Abstract translation: 提供了几种用于现场通信的电路和方法。 在一个实施例中，基于场的通信电路包括接收器电路，检测电路和控制电路。 接收器电路被配置为从场源接收场输入信号。 检测电路包括电压检测电路和电流检测电路，其被配置为检测分别与场输入信号相关联的电压信号和电流信号。 控制电路被配置为基于相对于至少第一预定阈值电平检测电压信号和电流信号之一的信号幅度来触发电压检测电路和电流检测电路之一的选择，其中， 电压检测电路和电流检测电路之一的选择有助于电压信号和电流信号之一的解调。

公开(公告)号：US08477631B2

公开(公告)日：2013-07-02

申请号：US12546867

申请日：2009-08-25

Applicant: Sthanunathan Ramakrishnan ,  Bijoy Bhukania ,  Jawaharlal Tangudu ,  Sarma S Gunturi ,  Jaiganesh Balakrishnan ,  Rakesh Kumar ,  Abhijit Kumar Das ,  Yogesh Darwhekar

Inventor： Sthanunathan Ramakrishnan ,  Bijoy Bhukania ,  Jawaharlal Tangudu ,  Sarma S Gunturi ,  Jaiganesh Balakrishnan ,  Rakesh Kumar ,  Abhijit Kumar Das ,  Yogesh Darwhekar

IPC: H04B7/00

CPC classification number: H04L12/12 ,  H04W24/00 ,  H04W28/18 ,  H04W52/028 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/23

Abstract: A receiver in a packet based communication system includes a programmable block and a detection block that detects at least one of an operating condition of the receiver and a protocol condition of the communication system. Further, the receiver includes a control circuit coupled to the programmable block that controls the programmable block to transition to a set of radio modes according to at least one of the operating condition and the protocol condition.

Abstract translation: 基于分组的通信系统中的接收机包括可编程块和检测接收机的操作条件和通信系统的协议条件中的至少一个的检测块。 此外，接收机包括耦合到可编程块的控制电路，其根据操作条件和协议条件中的至少一个控制可编程块向一组无线电模式转变。