公开(公告)号：US20210067163A1

公开(公告)日：2021-03-04

申请号：US16958034

申请日：2018-03-30

Applicant: Intel IP Corporation

Inventor： Niranjan Karandikar ,  Mohammed Alam ,  Gregory Chance ,  Armando Cova ,  Michael Milyard ,  John J. Parkes, JR. ,  Ashoke Ravi ,  Daniel Schwartz ,  Dong-Jun Yang

IPC: H03L7/085 ,  H04B1/12 ,  H04L25/03 ,  H04B1/18 ,  H04L25/08

Abstract: A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.

公开(公告)号：US20160261314A1

公开(公告)日：2016-09-08

申请号：US14635564

申请日：2015-03-02

Applicant: Intel IP Corporation

Inventor： Timothy F. Cox ,  Niranjan Karandikar

IPC: H04B5/02 ,  H04B5/00 ,  H04B17/21 ,  H04J1/00

CPC classification number: H04B5/02 ,  H04B5/0031 ,  H04B5/0056 ,  H04B17/13 ,  H04B17/21 ,  H04J1/00 ,  H04M2250/04

Abstract: Described herein are architectures, platforms and methods for calibrating a near field communication (NFC) reader/writer device using a modulation feedback apparatus for tuned antenna configurations.

Abstract translation: 这里描述了使用调谐反馈装置校准近场通信（NFC）读/写器设备用于调谐天线配置的架构，平台和方法。

公开(公告)号：US09819401B2

公开(公告)日：2017-11-14

申请号：US14864015

申请日：2015-09-24

Applicant: Intel IP Corporation

Inventor： Niranjan Karandikar ,  Sebastien Fievet ,  Sathish Kuttan

IPC: H04B5/00 ,  G06K7/10

CPC classification number: H04B5/0056 ,  G06K7/10237 ,  H04B5/0025 ,  H04B5/0075 ,  H04B5/0081 ,  Y02D70/166 ,  Y02D70/42

Abstract: Described herein are architectures, platforms and methods for implementing low-power detection of a near field communication (NFC) card or tags. In particular, an NFC antenna is integrated with at least one transistor to form an oscillator. A substantial decrease in oscillator's oscillation indicates presence or detection of the NFC card or tag.

公开(公告)号：US20210021272A1

公开(公告)日：2021-01-21

申请号：US16766921

申请日：2018-03-30

Applicant: Intel IP Corporation

Inventor： Niranjan Karandikar ,  Wayne Ballantyne ,  Gregory Chance ,  Simon Hughes ,  Daniel Schwartz ,  Nebil Tanzi

IPC: H03L7/099 ,  H03L7/093 ,  H03L7/091 ,  H03L7/185

Abstract: Techniques are provided for reducing or mitigating phase noise of a digital phase lock loop or the system depending on the digital phase lock loop. In an example, a multiple-mode digital phase lock loop can include a digital phase lock loop (DPLL), multiple frequency scalers configured to receive a reference clock, and a multiplexer configured to receive a mode command signal and to couple an output of one of the multiple frequency scalers to an input of the DPLL in response to a state of the mode command signal.

公开(公告)号：US20170093464A1

公开(公告)日：2017-03-30

申请号：US14864015

申请日：2015-09-24

Applicant: Intel IP Corporation

Inventor： Niranjan Karandikar ,  Sebastien Fievet ,  Sathish Kuttan

IPC: H04B5/00

CPC classification number: H04B5/0056 ,  G06K7/10237 ,  H04B5/0025 ,  H04B5/0075 ,  H04B5/0081 ,  Y02D70/166 ,  Y02D70/42

Abstract: Described herein are architectures, platforms and methods for implementing low-power detection of a near field communication (NFC) card or tags. In particular, an NFC antenna is integrated with at least one transistor to form an oscillator. A substantial decrease in oscillator's oscillation indicates presence or detection of the NFC card or tag.

公开(公告)号：US20160380703A1

公开(公告)日：2016-12-29

申请号：US14751117

申请日：2015-06-25

Applicant: Intel IP Corporation

Inventor： Anand S. Konanur ,  Niranjan Karandikar

IPC: H04B13/00 ,  G06K19/07 ,  G06K19/077 ,  H04B5/00

CPC classification number: H04B13/005 ,  G06K7/10237 ,  G06K19/0723 ,  G06K19/07756 ,  H04B5/0012

Abstract: Described herein are architectures, platforms and methods for enhancing human body communications (HBC) mode during near field communication (NFC) related functions or transactions. Optimization of the HBC communications system can include a radio frequency (RF) tuning circuitry to generate a voltage-based resonant frequency at respective capacitive pads of transmitting and receiving devices. The RF tuning circuitry includes a series connected capacitor-inductor driver that may be constructed within or outside of an NFC module circuitry or NFC silicon.

Abstract translation: 这里描述了用于在近场通信（NFC）相关功能或交易期间增强人体通信（HBC）模式的架构，平台和方法。 HBC通信系统的优化可以包括射频（RF）调谐电路，用于在发射和接收设备的各个电容焊盘处产生基于电压的谐振频率。 RF调谐电路包括串联连接的电容器 - 电感器驱动器，其可以被构造在NFC模块电路或NFC芯片内部或外部。

公开(公告)号：US09461716B2

公开(公告)日：2016-10-04

申请号：US14635564

申请日：2015-03-02

Applicant: Intel IP Corporation

Inventor： Timothy F. Cox ,  Niranjan Karandikar

IPC: H04B5/02 ,  H04J1/00 ,  H04B5/00 ,  H04B17/21

CPC classification number: H04B5/02 ,  H04B5/0031 ,  H04B5/0056 ,  H04B17/13 ,  H04B17/21 ,  H04J1/00 ,  H04M2250/04

Abstract: Described herein are architectures, platforms and methods for calibrating a near field communication (NFC) reader/writer device using a modulation feedback apparatus for tuned antenna configurations.

Abstract translation: 这里描述了使用调谐反馈装置校准近场通信（NFC）读/写器设备用于调谐天线配置的架构，平台和方法。