Ian J Forster: Reflective communication using radio-frequency devices. Christensen O Connor Johnson Kindness PLLC, November 30, 2010: US07844221 (1 worldwide citation)

The present invention relates to a reflective communication system that allows information from wireless communication devices, such as radio-frequency identification devices (RFID), to be reflectively communicated to a receiver in lieu of using a separate communication system. A transmitter transmi ...

George Goebel, Reed Gibson, Michael Holland: Shielded and multishielded coaxial connectors. Holland Electronics, Ocean Law, Paul D Chancellor, May 9, 2017: US09647394 (1 worldwide citation)

A shielded coaxial connector including a central conductor and a waveguide to shield the central conductor from RF signals.

Mark Elsom Cook, Steve P Morris: Short range RF monitoring system. Bigger Than The Wheel, Finnegan Henderson Farabow Garrett & Dunner, January 6, 2015: US08929820 (1 worldwide citation)

A wireless short range radio-frequency master device adapted to create and maintain a portable private network of wireless short range radio-frequency slave devices wherein the master device is configured to detect and register suitable slave devices for a network, and is capable of determining the ...

Lukas M Marti, Shannon M Ma, Pejman Lotfali Kazemi: Range class estimation for radio frequency devices. Apple, Fish & Richardson P C, October 4, 2016: US09460388 (1 worldwide citation)

Implementations are disclosed for obtaining a range state of a device operating in an indoor environment with radio frequency (RF) signal sources. In some implementations, windowed signal measurements obtained from RF signals transmitted by an RF signal source are classified into range classes that ...

Steve J Park, Zhenan Bao: Methods and apparatus concerning multi-tactile sensitive (E-skin) pressure sensors. The Board of Trustees of the Leland Stanford Junior University, Crawford Maunu PLLC, April 18, 2017: US09625330 (1 worldwide citation)

Various aspects as described herein are directed to electronic skin pressure sensors and methods of using the same. As consistent with one or more embodiments, an apparatus includes an electronic skin pressure sensor and sensor circuitry. The electronic skin device is configured and arranged for dif ...

Hua Cai, Yanzhao Pang, Wei Wang, Wei Xue: Method and apparatus for implementing digital baseband predistortion. Huawei Technologies, October 7, 2014: US08855233 (1 worldwide citation)

An apparatus for implementing digital baseband predistortion includes a transmission channel including a digital-to-analog converter, a modulator, an amplifier and a power amplifier, and further includes a feedback channel analog part including a diode detector, a filter and an analog-to-digital con ...

Sunil Dewan: Secure RFID packaging. First Data Corporation, Kilpatrick Townsend & Stockton, November 22, 2011: US08063781 (1 worldwide citation)

Methods and systems are provided for preparing radio-frequency devices for secure distribution. Multiple such radio-frequency devices are received. Each device has an embedded radio-frequency transponder. Each radio-frequency devices is moved sequentially to stations of a preparation device. At a fi ...

Vittorio Cavirani, Francesco Trotta, Luca Marcaccioli, Roberto Vincenti Gatti, Franco Manzini, Domenico Di Terlizzi: Radio frequency positioning system for vehicles. Elettric 80 S p A, Tutunjian & Bitetto P C, February 4, 2014: US08643536 (1 worldwide citation)

A positioning system for radio frequency devices includes a two-way radio antenna, for vehicles, having a transmitting and a receiving element. Reference antennas have retro-directive arrays which can shape the signal beams in elevation; polarize transmission and reception signals according to a cir ...

Alexandru Catalin Ionescu: System and method for subscribing for internet protocol multimedia subsystems (IMS) services registration status. T Mobile USA, Perkins Coie, January 3, 2017: US09538492 (1 worldwide citation)

A system and method that allows mobile device applications to receive changes in registration status from application services that are accessed via an Internet Protocol Multimedia Subsystem (IMS). Applications on a mobile device subscribe to receive notifications of changes in registration status f ...

Yien Tien Chou, Hsin Chia Lu: Magnetic field probe, magnetic field measurement system and magnetic field measurement method. NATIONAL TAIWAN UNIVERSITY, CKC & Partners, March 28, 2017: US09606198 (1 worldwide citation)

A magnetic field probe, a magnetic field measurement system, and a magnetic field measurement method are provided. The magnetic field probe includes a probe head. The probe head includes a first and second inner metal layer. The first inner metal layer includes a first sensing part and a first conne ...

Click the thumbnails below to visualize the patent trend.