41
Eric J Salyers, Shawn H Gallagher: Managed access system with mobile wireless device geolocation capability. HARRIS CORPORATION, Allen Dyer Doppelt Milbrath & Gilchrist P A Attorneys at Law, February 28, 2017: US09584252 (2 worldwide citation)

A managed access system for mobile wireless devices (MWDs) in a facility that is geographically within a wireless communications network includes a plurality of antennas arranged at the facility. Radio equipment is coupled to the antennas. A management access controller cooperates with the radio equ ...


42
Chongwu Zhou, Koungmin Ryu, Alexander Badmaev, Chuan Wang: Radio frequency devices based on carbon nanomaterials. University of Southern California, Fish & Richardson P C, October 14, 2014: US08860137 (2 worldwide citation)

RF transistors are fabricated at complete wafer scale using a nanotube deposition technique capable of forming high-density, uniform semiconducting nanotube thin films at complete wafer scale, and electrical characterization reveals that such devices exhibit gigahertz operation, linearity, and large ...


43
Terry M Schaffner: RF chirp signal propagation delay measurement. Digi International, Fogg & Powers, March 10, 2015: US08976060 (2 worldwide citation)

Distance between two radio frequency devices is estimated by receiving a plurality of spread spectrum chirp signals frequency offset from one another, and evaluating the received plurality of spread spectrum chirp signals for relative phase shifts between the plurality of spread spectrum chirp signa ...


44
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, August 20, 2013: US08515354 (2 worldwide citation)

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 ...


45
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, July 24, 2012: US08229364 (2 worldwide citation)

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


46
Wolfgang Neuberger, Stefan Spaniol: Active endoscopic photodynamic therapy devices; systems and method. CeramOptec, Bolesh J Skutnik, B J Associates, April 1, 2008: US07351242 (2 worldwide citation)

An active endoscopic system is disclosed containing an electromagnetic radiation system located at the distal end of the endoscopic device allowing for variable intensity application of desired wavelengths in the application of PhotoDynamic Therapy (PDT) over a broad area. The power sources are vari ...


47
Brian Kean, Jennifer Larsen, David William Cully, James L Collette: Radio-frequency-device personalization. First Data Coporation, Townsend and Townsend and Crew, January 27, 2009: US07482908 (2 worldwide citation)

Radio-frequency devices that have internal radio-frequency chips are personalized. A radio-frequency device is inserted into a package. An identifier is read electromagnetically from the radio-frequency chip with a radio-frequency transceiver while the radio-frequency device is within the package. P ...


48
Sek Kin Neng, Yungping Hsu, Tsunglun Yu, Ming Ta Lin, Naveen Kumar Arani: Apparatus and methods for detection of interface in radio-frequency devices. Marvell International, May 15, 2012: US08180308 (2 worldwide citation)

A communication apparatus includes a radio frequency (RF) apparatus. The RF apparatus includes an amplifier, and a signal detection circuit. The amplifier receives RF signals and amplifies those signals. The amplifier has an adjustable gain value. The signal detection circuit detects whether a recei ...


49
Kim Jin Dong, Waldie William T: Surface-mount dielectric filter.. Motorola, July 31, 1991: GB2240431-A (2 worldwide citation)

A filter assembly (100) includes a ceramic block filter (102) and shielding bracket (132) which surface mounts to a printed circuit board (152) for interconnecting to radio frequency devices, such as a radio transceiver. The bracket (132) is soldered to the filter (102) and includes two openings (13 ...


50
Kuo Timothy C, Liu Edward Wai Yeung, Keramat Mansour: Apparatus and method for in-situ gain calibration of radio frequency devices using thermal noise. Nvidia, November 22, 2006: EP1724953-A2 (2 worldwide citation)

An apparatus for calibrating gain of an radio frequency receiver ("Rx") is disclosed to provide, among other things, a structure for performing in-situ gain calibration of an RF integrated circuit over time and/or over temperature without removing the RF integrated circuit from its operational confi ...



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