41
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 ...


42
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 ...


43
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 ...


44
Jenkins Charles Roderick, Johnson Ashley Bernard, Barrow Harry, Barrett Michael Paul: Messenger vessels to indicate downhole conditions. Schlumberger Holdings, July 18, 2007: GB2434165-A (2 worldwide citation)

Messenger vessels 60 are programmed or imprinted with signal information and then positioned releasably in a downhole location. A sensing and releasing system 22 senses the occurrence of a downhole condition and releases the vessels to be entrained in the flow of production or drilling fluid and car ...


45
Bleckmann Frederick, Bleckmann Gilbert A: Method and apparatus for production of rf labels. Pittsfield Weaving Co, February 25, 2004: EP1390926-A1 (2 worldwide citation)

The present invention includes a method for producing individual folded labels incorporating a radio frequency device, the method comprising the steps of providing a ribbon of labels containing a woven logo or text. A carrier strip with a plurality of radio frequency devices spaced thereon is provid ...


46
Prakash Gopalakrishnan, Alisa Yurovsky: Optimizing circuit layouts by configuring rooms for placing devices. Cadence Design Systems, Schwegman Lundberg & Woessner P A, September 3, 2013: US08527928 (1 worldwide citation)

A computer-readable medium stores a specification for a circuit layout. The specification includes: a configuration of rooms for placing devices, one or more room constraints for the configuration of rooms, one or more groups of devices for the rooms, and one or more device constraints for devices i ...


47
Ian J Forster: Reflective communication using radio-frequency devices. Christensen O Connor Johnson Kindness PLLC, December 8, 2009: US07630684 (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 ...


48
Terry M Schaffner: RF chirp signal propagation delay measurement. Digi International, Fogg & Powers, March 10, 2015: US08976060 (1 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 ...


49
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 ...


50
Wolfgang Neuberger, Stefan Spaniol: Active endoscopic photodynamic therapy devices; systems and method. CeramOptec, Bolesh J Skutnik, B J Associates, April 1, 2008: US07351242 (1 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 ...



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