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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
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 ...


3
Charles Eric Seaberg, Gregory J Buchwald, Azfar Inayatullah: Method and apparatus for combining a wireless receiver and a non-wireless receiver. Motorola, James L Clingan Jr, Susan C Hill, April 6, 2004: US06717533 (17 worldwide citation)

A vehicular audio system receives audio inputs from audio sources and a radio receiver. Analog audio is converted to digital, and digital audio remains natural digital. The receiver front end converts a radio signal to an intermediate frequency then an ADC converts that to a digital signal. The inpu ...


4
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 ...


5
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 ...


6
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 ...


7
Lawrence Marvin Ecklund, Gregory J Buchwald: Impulse noise blanker. Motorola, James L Clingan Jr, June 10, 2003: US06577851 (8 worldwide citation)

A radio back-end integrated circuit that includes a blanking switch having a signal input which receives an IF signal, a control input, and a signal output. Also included is a demodulator having an input coupled to the output of the blanking switch, and an output. The radio back-end also has a sampl ...


8
Lawrence M Ecklund, Gregory J Buchwald, Steven G Parmelee: Adaptive graphic equalizer and radio using same. Motorola, Steven G Parmelee, June 4, 1996: US05524290 (7 worldwide citation)

An adaptive graphic equalizer (200, 400) has various ordinarily fixed parameters (such as center frequencies, filter bandwidths, and step response sensitivity) that are automatically altered to suit a particular audio source. In one embodiment, a radio (100) includes the graphic equalizer, and such ...


9
Lawrence Marvin Ecklund, Gregory J Buchwald, Stephen C Tremmell: Digitally controlled radio back-end. Freescale Semiconductor, James L Clingan Jr, October 26, 2004: US06810266 (7 worldwide citation)

A radio circuit that includes a radio front-end for receiving a radio signal and converting the radio signal to a first intermediate frequency signal and a second intermediate frequency signal. The radio circuit also includes an analog back-end having a plurality of inputs for receiving the first in ...


10
Lawrence Marvin Ecklund, Gregory J Buchwald: Feedforward and feedback control in a radio. Motorola, James L Clingan Jr, July 23, 2002: US06424825 (5 worldwide citation)

A radio back-end circuit that includes a signal processing unit which receives an intermediate frequency signal containing modulated information. The radio back-end circuit processes the intermediate signal and provides an output representative of the modulated information. The radio back-end circui ...



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