David T Nance

US Patent:

20210282153, Sep 9, 2021

Filed:

Mar 3, 2021

Appl. No.:

17/190847

Inventors:

- Reston VA, US
David Nance - Sterling VA, US

International Classification:

H04W 72/08
G08G 5/00
H04W 72/04
H04W 72/00

Abstract:

A terrestrial communication systems, specifically a signal collision avoidance system between a terrestrial transmitter and an airborne receiver, is disclosed. The terrestrial communication system includes an electronic processor configured to determine a receive frequency from a nearby airborne receiver, determine a transmit frequency from a communicatively coupled terrestrial transmitter, and modify the transmit frequency of the terrestrial transmitter based on the determined receive frequency and transmit frequency. To modify the transmit frequency, the electronic processor compares the receive frequency and the transmit frequency to determine a channel type. Based on the determined channel type, including co-channel and adjacent-channel, the electronic processor modifies a spectrum signature of the transmit frequency so that the transmit frequency does not interfere with the receive frequency of the airborne receiver.

US Patent:

20190245790, Aug 8, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264004

Inventors:

- Reston VA, US
David Nance - Sterling VA, US

International Classification:

H04L 12/813
H04L 12/947
H04L 12/46
H04L 12/703
H04L 12/715
G06F 9/455

Abstract:

Systems and methods for exchanging data over a network are described. One method includes receiving, from a computing device via a physical network port, a request to forward network traffic, the request including a network domain identifier and a user identifier. The method includes retrieving, from a database storing user information, a user profile based on the user identifier. The method includes determining whether the traffic forwarding request is valid based on the user profile. The method includes, when the traffic forwarding request is valid, provisioning, on the network, an application service virtual circuit between a local virtual port of a communication interface coupled to the electronic processor and a peer port at a remote communication endpoint. The method includes forwarding the network traffic from the computing device to the remote communication end point via the application service virtual circuit.

US Patent:

20190246281, Aug 8, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/263994

Inventors:

- Reston VA, US
David Nance - Sterling VA, US

International Classification:

H04W 12/08
H04W 72/04
H04L 29/06

Abstract:

Devices and methods for exchanging data over a network are described. One device includes a communication interface and an electronic processor coupled to the communication interface. The electronic processor is configured to receive, via the communication interface, at least one network message including a payload associated with an IoT device. The electronic processor is configured to retrieve a data exchange policy for the IoT device. The electronic processor is configured to determine whether the payload is valid based on the data exchange policy. The electronic processor is configured to in response to determining that the payload is invalid, process the at least one network message based on the data exchange policy.

US Patent:

20190149228, May 16, 2019

Filed:

Nov 13, 2018

Appl. No.:

16/189651

Inventors:

- Reston VA, US
David Nance - Sterling VA, US
Santanu Dutta - Vienna VA, US

International Classification:

H04B 7/204
H04B 7/185
H04B 7/06
G01S 19/43
G01S 19/41

Abstract:

A system includes a modulator, a beam former, earth equipment, and a spotbeam satellite. The modulator is configured to receive localized content, generate N localized content delivery platform frames from the localized content, and generate intermediate frequency (IF) carriers that are modulated with the N localized content delivery platform frames. The beam former is configured to process the IF carriers to enable beamforming in a satellite service band. The earth equipment is configured to frequency translate the IF carriers that are processed into feederlink signals in a feederlink band, and transmit the feederlink signals. The spotbeam satellite is configured to receive the feederlink signals, generate a multicast transmission by frequency translating the feederlink signals to the satellite service band, and transmit the multicast transmission to form N spotbeams, N being an integer greater than zero.