Comtech Mobile Datacom Corporation

Telkonet Communications, Inc.

Other

Ralph Eugene Crenshaw

David W Grimes

Richard Candell

L Peter Larson

Bruce Leonard McKinley

Paul Ebert

Andrew Pozsgay

John M Fossaceca

Greg Handermann

Mark Holland

Lajuana Johnson

Bo Wang

Manuel Ruiz

Christopher C Skiscim

A method for detecting multi-user signals including conducting a first energy burst detection detecting a first plurality of user signals as a first energy burst, attempting to decode a user signal from the first plurality of signals within the first energy burst, cancelling out a first user signal from the first energy burst if the first user signal is successfully decoded from the first energy burst, determining a second user signal to be discarded if the second user signal is not successfully decoded from the first energy burst, conducting a second energy burst detection detecting a second plurality of signals as a second burst, and iteratively cancelling out the first user signal successfully decoded from the first energy burst from the second energy burst, wherein the second energy burst detection is conducted when all user signals within the first energy burst are either cancelled out or determined to be discarded.

Advanced multi-user detector

Described are computer-based methods and apparatuses, including computer program products, for determining burst transmission signals. A receiver receives radio frequency data from a data source through a network. The receiver converts the radio frequency data to digital data. The receiver converts the digital data to baseband data. The receiver generates a correlation magnitude from the baseband data based on one or more correlation templates. The receiver determines one or more statistics based on the correlation magnitude and stored statistics. The receiver determines the presence of a burst transmission signal based on a comparison of a threshold value computed as a function of the statistics and the correlation magnitude. If the correlation magnitude exceeds the computed threshold, the receiver demodulates the burst transmission signal to packet data and transmits the packet data to a server.

Determining burst transmission signals

A method and apparatus for modifying a three-phase power distribution network in a building in order to provide data communication by using a Power Line Carrier (PLC) signal to an approximate electrical central location point of Wye-connected and Delta connected power distribution system remote from the data entry point of the building. A passive coupler device is attached to a centrally located service panel. The passive coupler receives the Power Line Carrier (PLC) signal from the remote entry point in the building and conditions the signal for entry at the service panel onto each phase of the three phase power distribution network.

Method and apparatus for attaching power line communications to customer premises

A method and apparatus for modifying a power distribution network in a building in order to provide data communication by using a Power Line Carrier (PLC) signal to an approximate electrical central location point of a power distribution system remote from the data entry point of the building. A passive coupler device is attached to a centrally located service panel. The passive coupler receives the Power Line Carrier (PLC) signal from the remote entry point in the building and conditions the signal for entry at the service panel onto each phase of the power distribution network.

A method and apparatus for modifying a three-phase power distribution network in a building in order to provide data communication by using a Power Line Carrier (PLC) signal to an approximate electrical central location point of the power distribution system remote from the data entry point of the building. A passive coupler device is attached to a centrally located service panel. The passive coupler receives the Power Line Carrier (PLC) signal from the remote entry point in the building and conditions the signal for entry at the service panel onto each phase of the three phase power distribution network.

A school desk or table with a smooth writing surface (88), which when in the open position (FIGS. 4 , and 4A) can be utilized as a computer work station on a local area network. The video display (14) is of the thin variety (LCD type); the input device (34) would include a keyboard and a track-ball mouse. Student work can be stored either on the file server or on a floppy disk using a floppy drive (72). The network cable (46A) and power cable (46B) are routed through the desk frame into the computer station underside and connect each individual station to the network and centralized power supply. The desk-station is unlocked by a servo motor (52) which is activated upon powering up the main power supply.

Growing community of inventors

Crownsville, MD, United States of America

Ralph Eugene Crenshaw