DAVID L BROWN
Radiology at Dalewood Ln, Lake Worth, FL

6549774, Apr 15, 2003

Nov 4, 1999

09/433864

Joseph M. Titlebaum - Bethesda MD
Robert L. Acker - Arlington VA
David L. Brown - Lake Worth FL

XM Satellite Radio Inc. - Washington DC

H04Q 720

455427, 455134, 455132, 455133, 455135, 455272, 4552771

A satellite receiver is switchable between an operating mode wherein the receiver is capable of generating an output signal using received signals from one or a plurality of satellites, aid another operating mode wherein the receiver generates an output signal using signals received from only one satellite. The former operating mode is useful when the receiver is operating in a mobile environment. The latter operating mode is useful when the receiver is operating in a fixed environment. The receiver is configured to detect the mode in which it is operating. The receiver comprises at least two recevier arms for processing a broadcast signal from a selected one of two satellites. The receiver disables one of the arms when the receiver is stationary.

6397076, May 28, 2002

Nov 5, 1999

09/434734

David L. Brown - Lake Worth FL
Craig Wadin - Sunrise FL

XM Satellite Radio, Inc. - Washington DC

H04B 700

455521, 455426, 455419, 455 45, 4551851, 4551861, 455404

A method and apparatus for receiving dispatch messages in a broadcast radio receiver. In one embodiment, audio dispatch messages can be received, in another embodiment, data dispatch messages can be received. In either embodiment, a previously selected broadcast channel is received until a dispatch alert message is simultaneously received. The dispatch alert message includes a dispatch ID codes which is compared by the receiver with a previously stored dispatch ID code. If equality is found, the receiver switches from the previously selected broadcast channel to a dispatch broadcast channel to receive the dispatch message. Upon completion of the dispatch message, the receiver automatically switches back to the previously selected broadcast channel.

6735416, May 11, 2004

May 25, 1999

09/318149

Paul Marko - Pembrone Pines FL
David L. Brown - Lake Worth FL
Craig Wadin - Sunrise FL

XM Satellite Radio, Inc. - Washington DC

H04H 100

455 302, 455 301, 4552771, 455345

A receiver adapted to receive a signal having at least first and second carrier frequencies on which first and second information signals are modulated, respectively. The inventive receiver further includes circuitry for converting the received signal to a complex baseband signal. In the illustrative embodiment, the received signal includes first and second ensembles. The first ensemble includes a first signal from a first source, a first signal from a second source and a first signal from a third source. The second ensemble includes a second signal from the first source, a second signal from the second source and a second signal from the third source. The receiver is adapted to selectively output the first and/or the second ensemble. Conversion of the band is achieved with quad mixers. The outputs of the mixers are digitized and selectively provided as the first and/or the second ensemble by a digital translation stage.

2003018, Oct 2, 2003

May 25, 1999

09/318296

PAUL MARKO - PEMBRONE PINES FL, US
DAVID BROWN - LAKE WORTH FL, US
CRAIG WADIN - SUNRISE FL, US

H04B007/185

370/316000, 370/535000

A system and method for simultaneously receiving first and second ensembles. The first ensemble includes a first signal from a first satellite, a first signal from a second satellite and a first signal from a terrestrial repeater. Likewise, the said second ensemble includes a second signal from the first satellite, a second signal from the second satellite and a second signal from the terrestrial repeater. The inventive receiver further includes a mechanism for selectively outputting signals transmitted within the first and second ensembles. In the illustrative embodiment, the first signal from the second satellite is identical to the first signal from the first satellite. Similarly, the first signal from the terrestrial repeater is identical to the first signal from the first satellite. In addition, a novel frequency plan is employed by which the carrier signal associated with the second satellite is disposed between the carrier signal associated with the first satellites and the carrier signal associated with the terrestrial repeater.

7505745, Mar 17, 2009

May 25, 1999

09/318031

Paul Marko - Pembrone Pines FL, US
David L. Brown - Lake Worth FL, US
Craig Wadin - Sunrise FL, US

XM Satellite Radio, Inc. - Washington DC

H04B 7/08

455132, 455 302, 455427, 455 131

An interoperable receiver adapted to receive signals in multiple SDARS bands. The advantageous operation is afforded by the design of the receiver by which an entire band consisting of multiple carriers is received at one time. Receipt and processing of each SDARS band signals is then effectuated by retuning a synthesizer as necessary. In the illustrative embodiment, the invention further includes circuitry for simultaneously receiving first and second ensembles. The first ensemble including a first signal from a first source, a first signal from a second source and a first signal from a third source. The second ensemble including a second signal from the first source, a second signal from the second source and a second signal from the third source. In a preferred embodiment, the inventive receiver is adapted to receive and output audio signals along with data signals simultaneously.

6011784, Jan 4, 2000

Dec 18, 1996

8/769026

David L. Brown - Lake Worth FL
Paul D. Marko - Pembroke Pines FL
Jaime A. Borras - Miami FL

Motorola, Inc. - Schaumburg IL

H04J 324

370329

In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically allocated for communication of isochronous data. After communication of the isochronous data, the remainder of the frame (400) before the next isochronous beacon (422) is used for transmission of packets of asynchronous data. This technique gives priority to the isochronous data, which is real time, while also maximizing the bandwidth allocated for asynchronous data. A single transmitter circuit (124, 158) and receiver circuit (122, 156) at each station are used for communication of both isochronous data and asynchronous data.

6014376, Jan 11, 2000

Sep 18, 1996

8/715508

Victor M. Abreu - Grayslake IL
Raul A. Pombo - Grayslake IL
Paul D. Marko - Pembroke Pines FL
David L. Brown - Lake Worth FL

Motorola, Inc. - Schaumburg IL

H04J 306

370350

A method for synchronizing base stations (104, 106, 108, 110) or radio ports in a communication system (100) such as a cordless or cellular telephone system uses a mobile station (114) or handset for synchronizing unsynchronized base stations. The mobile station (114) is first synchronized to a reference base station. The mobile station (114) then initiates communication with the unsynchronized base station and calculates a synchronization adjustment. The mobile station (114) transmits the synchronization adjustment to the unsynchronized base station which uses the synchronization adjustment to adjust its time base.