61
William B Baringer: Hybrid piezoelectric device / radio frequency antenna. Fitbit, Weaver Austin Villeneuve & Sampson, November 24, 2015: US09196964

A hybrid antenna including a piezoelectric device and an RF radiator. The hybrid antenna is capable of providing both RF and piezoelectric device functionality, e.g., radio frequency transmission/reception capabilities for radio frequency devices as well as sound-producing and/or energy-scavenging f ...


62
Anuj Madan, Fikret Altunkilic, Guillaume Alexandre Blin: Radio frequency devices having reduced intermodulation distortion. Skyworks Solutions, Chang & Hale, September 20, 2016: US09450579

Radio-frequency (RF) devices are disclosed providing reduced intermodulation distortion. Disclosed RF and semiconductor devices can include a semiconductor substrate, a switch formed on the semiconductor substrate having a stack of field-effect transistors (FETs) connected in series, and a capacitor ...


63
Mark Elsom Cook, Steve P Morris: Short range RF monitoring system. Bigger Than The Wheel, Finnegan Henderson Farabow Garrett & Dunner, January 6, 2015: US08929820

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 ...


64
Ian J Forster: Reflective communication using radio-frequency devices. Christensen O Connor Johnson Kindness PLLC, April 13, 2010: US07697946

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 ...


65
Mark Elsom Cook, Steve P Morris: Short range RF monitoring system. Bigger Than The Wheel, Finnegan Henderson Farabow Garrett & Dunner, January 6, 2015: US08929821

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 ...


66
Joakim Linde, Aysegul Findikli, Sven Jerlhagen, Ritesh Vishwakarma: Method and apparatus for co-location of two radio frequency devices. Broadcom Corporation, Sterne Kessler Goldstein & Fox P L L C, February 16, 2016: US09264152

A method for avoiding signal interference between a first RF circuit and a second RF circuit is provided. The first and second RF circuits are co-located and the first RF circuit is configured to operate in a first frequency range. The second RF circuit is configured to operate in a second frequency ...


67
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

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 ...


68
Aristotele Hadjichristos: Differential to single-ended conversion for radio frequency devices. QUALCOMM Incorporated, Ramin Mobarhan, January 31, 2012: US08107910

In an exemplary embodiment, a circuit is disclosed comprising a plurality of inputs, each input to receive a radio frequency waveform from a plurality of differential input waveforms having different phases; and an inverter circuit to invert a waveform from the plurality of differential inputs wavef ...


69
Hua Cai, Yanzhao Pang, Wei Wang, Wei Xue: Method and apparatus for implementing digital baseband predistortion. Huawei Technologies, October 7, 2014: US08855233

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 ...


70
Tsun Lai Hsu, Jui Fang Chen, Jun Hong Ou, Ji Wei Hsu: Method for producing layout of semiconductor integrated circuit with radio frequency devices. United Microelectronics, J C Patents, February 26, 2013: US08386976

A method for producing a layout of a device in an integrated circuit before actually fabricated is provided. The method includes inputting at least one fixed parameter for the device for fabrication. And then, a first part of a set of variable parameters of a layout of the device is input. The compl ...



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