Harry D Johnson

US Patent:

6836515, Dec 28, 2004

Filed:

Jul 23, 1999

Appl. No.:

09/360209

Inventors:

Stanley E. Kay - Rockville MD
Bala Subramaniam - Montgomery Village MD
Harry M. Johnson - Springfield VA
Donald S. Arnstein - Fairfax VA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H04L 2700

US Classification:

375260, 375261, 375269

Abstract:

A radio, and related methods of radio communication, consisting of a multi-modulation modem, wherein the multi-modulation modem that modulates and demodulates signals using a plurality of modulations. The radio also comprises a frequency converter coupled to the multi-modulation modem for converting the signals to a radio frequency and a transceiver unit including an antenna coupled to the frequency converter for transmitting the signals over a radio communications link. The multi-modulation modem includes a modulator that includes a modulation selector unit that selects respective ones of the plurality of modulations to modulate the signals. The multi-modulation modem also includes a demodulator for demodulating the signals having been modulated using the plurality of modulations.

US Patent:

56258895, Apr 29, 1997

Filed:

Jan 13, 1995

Appl. No.:

8/372510

Inventors:

Keerthilatha Chikkaswamy - Gaithersburg MD
Harry Johnson - Springfield VA

Assignee:

Hughes Electronics - Los Angeles CA

International Classification:

H04B 1702

US Classification:

455 671

Abstract:

A RF sniffer module and method for detecting the availability of cellular communication channels for data transmission. The module monitors the channels used in a cellular communication network to determine when a particular channel is idle, meaning it is not being currently used for communication. The module communicates the status of the channel to an overlay system. Thus, the overlay system is informed that a particular channel is idle and thus can be used for data transmission or that the channel is not available and thus the overlay system can not use that channel without interfering with the operation of the cellular communication network.

US Patent:

20210151869, May 20, 2021

Filed:

Nov 15, 2019

Appl. No.:

16/685986

Inventors:

- Germantown MD, US
Peter HOU - Gaithersburg MD, US
Taiwei YUE - Germantown MD, US
Brian CLOUGH - Germantown MD, US
Harry JOHNSON - Germantown MD, US
John CORRIGAN - Germantown MD, US

Assignee:

HUGHES NETWORK SYSTEMS, LLC - Germantown MD

International Classification:

H01Q 1/38
H05K 3/40
H05K 1/03
H05K 1/11
H05K 1/02
H01Q 1/48
H01Q 9/04

Abstract:

An apparatus and method for producing a low loss printed circuit board (PCB). The PCB includes an antenna patch, a ground plane, and a polarizer. The antenna patch consists of a plastic base having a first plurality of circuit patterns formed directly on its top surface. The ground plane is formed directly on a bottom surface of the plastic base used for the antenna patch, and contains one or more coupling circuit patterns. A polarizer spacer is provided on the antenna patch to provide separation from the polarizer. The polarizer also consists of a second plastic base having a second plurality of circuit patterns formed directly thereon.

Address:

3129 Belmont Ave, Baltimore, MD 21216

VIN:

3GSCL33P38S526677

Make:

SATURN

Model:

VUE

Year:

2008