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Randy Ekl
Stephen L Kuffner, Ramy S Ayoub, John M Belcea, Gregory J Buchwald, Lynn D Dann, Mario F Derango, Lawrence M Ecklund, Randy L Ekl, Michael S Johnson, S David Silk: Communications system for exchanging spectrum sensing measurements through a drop box and method of using same. Motorola, Motorola, October 1, 2009: US20090245119-A1

A communications system and method for exchanging spectrum usage information through a drop box (100) includes one or more central stations (101) that defines a region of operation. A central drop box (102) is associated with the central station (101) for providing a database of spectrum usage infor ...


2
Roy H Espe, Lawrence M Ecklund: Phase locked loop having a fast lock current reduction and clamping circuit. Motorola, Michael D Bingham, December 26, 1989: US04890072 (44 worldwide citation)

A circuit for use in a phase locked loop (PLL) which is responsive to the PLL being out of lock for providing fast lock current to drive the VCO of the PLL in the direction to acquire lock. The circuit includes a pair of controlled current sources responsive to selective control signals for either s ...


3
Gregory J Buchwald, Steven F Gillig, S David Silk, Lawrence M Ecklund, Stephen L Kuffner: Method and apparatus for determining appropriate channels for communication. Motorola, January 27, 2009: US07483700 (26 worldwide citation)

During operation of a secondary communication system, cells (106) are formed by a plurality of localized nodes (104) to alert other nodes within the cell of frequencies which must be protected or otherwise avoided. All nodes within the cell monitor a differing subset of all frequencies available, an ...


4
Charles A Backof Jr, Steven D Bromley, John D Bruner, Lawrence M Ecklund, Steven F Gillig, John K Grosspietsch, Whay Chiou Lee, Scott E Preece: Method and apparatus for setting and managing operational dynamics within cognitive radio networks. Motorola Solutions, June 28, 2011: US07970430 (14 worldwide citation)

In certain embodiments, a method for managing operational parameters of a cognitive radio device to minimize non-compliance with a regulatory policy involves sensing a change in an operational condition that will affect compliance with a current operational policy; estimating a time at which the cur ...


5
Lawrence M Ecklund, Charles J Marik: Linearized differential amplifier. Motorola, Steven G Parmelee, September 27, 1988: US04774476 (14 worldwide citation)

A linearized differential amplifier having two feedback paths. One of the feedback paths functions to linearize the output of the differential amplifier. The remaining feedback path functions to slightly limit the operating range of the differential amplifier to ensure the operational stability of t ...


6
Gregory J Buchwald, Lawrence M Ecklund, Roy H Espe: Noise blanker and a radio receiver and method employing same. Motorola, Steven G Parmelee, Darleen J Stockley, August 11, 1998: US05794136 (11 worldwide citation)

A noise blanker (400) suitable for use with a radio receiver (500) having a track and hold unit (509) includes an impulse noise detector (401), a low pass filter (404) that is coupled to the impulse noise detector, and a first amplitude threshold detector (406) that is coupled to the output of the l ...


7
Gregory J Buchwald, Lawrence M Ecklund, Richard S Rachwalski, S David Silk, Stephen L Kuffner: Method and apparatus for allowing communication units to utilize non-licensed title spectrum. Motorola, July 3, 2007: US07239624 (9 worldwide citation)

The presence of the non-television transmission within a channel is used to indicate that secondary non-licensed usage of the channel is permitted. Specifically, if secondary users incorporate the means to identify the unique modulation signature of the secondary user, decoding of a beacon signal ma ...


8
Lawrence M Ecklund: Dual purpose variable Q filter. Motorola, Margaret Marsh Parker, July 14, 1987: US04680795 (9 worldwide citation)

A variable Q filter network in an AM stereophonic receiver provides elimination of any adjacent channel carrier interference while providing the function of a tone control, either automatic or manually controlled. Parts count and costs, IC pinouts and the possibility of intermodulation are all reduc ...


9
Lawrence M Ecklund, Robert E Stengel: Device and method for phase compensation. Motorola Solutions, April 10, 2012: US08154329 (8 worldwide citation)

A frequency generation unit is provided that permits a receiver to tune from channel to channel without cycle skipping and in which compensation for phase offset introduced during tuning is provided. The frequency generation unit includes a fractional-N synthesizer, a voltage controlled oscillator ( ...


10
Gregory J Buchwald, Lawrence M Ecklund, Stephen L Kuffner: Method and apparatus for channel selection. Motorola, Kenneth Haas, Barbara R Doutre, October 19, 2010: US07818011 (8 worldwide citation)

The radio frequency (RF) environment is scanned and analyzed prior to entering a building or otherwise non-ideal propagation path environment. Upon entering the building or non-ideal propagation path environment, the mobile unit will scan the RF environment from within the building. An attenuation f ...