Vt Idirect, Inc.

Hughes Electronics Corporation

Hai Quang Tang

Thomas Jackson

David Bourner

Christopher Donald Gregory

David D Bettinger

Theodore A Schweitzer

Matthew A Reklau

Gregory Carey Braunberg

Jason B Maiorana

Joseph Jude Boone

Hao Cheng

Christopher Robert Burdick

Chao Liu

Robert Hannah

Mohammad N Bukhari

A method, and a VSAT capable of being configured for such a method, of configuring a VSAT, the steps of which are setting, while an outdoor unit of the VSAT is at a configuration location, a maximum value of the adjustable gain of the up-converting device and transmitting, from an operating location that is separate from the configuration location, transmission signals to the satellite at the transmission frequency and with a gain value of at most the maximum value of the adjustable gain set at the configuration location.

Highly integrated very small aperture terminal (VSAT) apparatus and method

A method of sharing a satellite communication system having a common equipment includes billing a first user for sending a first message using the common equipment over a first satellite link, billing a second user for sending a second message using the common equipment over a second satellite link, wherein the first satellite link is different than the second satellite link, billing a first network operator for billing the first user, and billing a second network operator for billing the second user.

Method of sharing a satellite communication system having a hub with common equipment

A communication system, method, computer program product, and apparatus include common equipment shared between multiple independently administered networks. The common equipment is reconfigurable and expandable and provides changed communication capacity and functions when additional elements are added or reconfigured. Configurable features include, for example, communication bandwidth, Quality of Service, and a number of communication satellites included in the communication system. The common equipment includes expandable elements including, for example, a single hub modem chassis that can expand to communicate with more than one communication satellite and a protocol processor that can share a protocol processing task with another protocol processors.

HUB modem system, method and apparatus

Scalable communication system, method and apparatus

An apparatus for generating a modulated signal which includes a modulator operative for receiving a first signal and input data signals, and modulating the first signal in accordance with the input data signals so as to produce a modulated reference signal; a first frequency divider coupled to the modulator output, operative to reduce the frequency of the modulated reference signal by a predetermined factor; a signal generator operative to produce a second signal; a first mixer having a first input coupled to an output of the first frequency divider and a second input coupled to the output of the signal generator. The first mixer operates to frequency translate the modulated reference signal by an amount equal to the frequency of the second signal. In addition, the signal generator of the present invention contains a direct digital synthesizer coupled to a second phase lock loop which operates to up-convert the output signal of the DDS to the microwave region. The feedback network of the second phase lock loop utilizes frequency translation to down-convert the output signal in order to close the loop.

High precision, low phase noise synthesizer with vector modulator

A VSAT system for generating and transmitting a modulated data signal to a satellite. The VSAT system includes an indoor unit for generating a modulated data signal having an envelope of constant amplitude, and an outdoor unit including a transmitter module operative to receive the modulated data signal and to frequency multiply and amplify the modulated data signal so as to produce a modulated carrier signal having an envelope of constant amplitude. The transmitter module includes a multiplier operative to frequency multiply the modulated data signal to the frequency of the modulated carrier signal, and a power amplifier operated in the saturation mode, which amplifies the modulated carrier signal to the desired power level. The components constituting the transmitter module are formed on a single integrated circuit.

VSAT system

Growing community of inventors

Olney, MD, United States of America

Hai Quang Tang