Lin A Cheng

US Patent:

20210399936, Dec 23, 2021

Filed:

Aug 23, 2021

Appl. No.:

17/409522

Inventors:

- Louisville CO, US
Lin Cheng - Superior CO, US

International Classification:

H04L 27/26
H04B 1/7103
H04L 27/00
H04L 27/34

Abstract:

A method of modulating a series of input digital symbols of a first modulation scheme is provided. The method is implemented by a transmitter and includes receiving a sequential series of samples of the digital symbols in a first domain of the first modulation scheme. The first domain is one of the time domain and the frequency domain. The method further includes determining a dual of the first modulation scheme. The dual has a second modulation scheme in a second domain that is different from the first domain the second domain is the other of the time domain and the frequency domain. The method further includes applying a 90 degree rotational operation to the second modulation scheme to generate a rotational modulation format, modulating the series of digital symbols with the generated rotational modulation format, and outputting the modulated series of digital symbols to a receiver.

US Patent:

20210389474, Dec 16, 2021

Filed:

Aug 30, 2021

Appl. No.:

17/461580

Inventors:

- Louisville CO, US
Peter Paul Smyth - Newbourne, GB
Lin Cheng - Superior CO, US
Jim O'Connor - Idaho Springs CO, US
Eric Winkelman - Boulder CO, US
Thomas H. Williams - Longmont CO, US
Steve Arendt - Longmont CO, US

International Classification:

G01S 19/21
H04J 11/00
H04W 16/14
H04B 7/185

Abstract:

A communication system, includes a satellite receiver in operable communication with a central server, a cellular node configured to operate within a proximity of the satellite receiver, and at least one mobile communication device configured to communicate (i) with the cellular node, (ii) within the proximity of the satellite receiver, and (iii) using a transmission signal capable of causing interference to the satellite receiver. The satellite receiver is configured to detect a repeating portion of the transmission signal and determine a potential for interference from the at least one mobile communication device based on the detected repeating portion.

US Patent:

20200284915, Sep 10, 2020

Filed:

May 18, 2020

Appl. No.:

16/876229

Inventors:

- Louisville CO, US
Peter Paul Smyth - Newbourne, GB
Lin Cheng - Superior CO, US
Jim O'Connor - Idaho Springs CO, US
Eric Winkelman - Boulder CO, US
Thomas H. Williams - Longmont CO, US
Steve Arendt - Longmont CO, US

International Classification:

G01S 19/21
H04J 11/00
H04W 16/14
H04B 7/185

Abstract:

A communication system, includes a satellite receiver in operable communication with a central server, a cellular node configured to operate within a proximity of the satellite receiver, and at least one mobile communication device configured to communicate (i) with the cellular node, (ii) within the proximity of the satellite receiver, and (iii) using a transmission signal capable of causing interference to the satellite receiver. The satellite receiver is configured to detect a repeating portion of the transmission signal and determine a potential for interference from the at least one mobile communication device based on the detected repeating portion.

US Patent:

20200252124, Aug 6, 2020

Filed:

Apr 17, 2020

Appl. No.:

16/851620

Inventors:

- LOUISVILLE CO, US
Lin Cheng - Superior CO, US
Jim O'Connor - Idaho Springs CO, US
Eric Winkelman - Boulder CO, US
Thomas H. Williams - Longmont CO, US
Belal Hamzeh - Westminster CO, US
Steve Arendt - Longmont CO, US

International Classification:

H04B 7/185
H04W 52/24
H04W 16/14
H04W 16/20
H04B 7/0413
H04B 17/391

Abstract:

A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.

US Patent:

20190372818, Dec 5, 2019

Filed:

Jan 18, 2018

Appl. No.:

16/478086

Inventors:

- Louisville CO, US
Lin CHENG - Superior CO, US

Assignee:

Cable Television Laboratories, Inc. - Louisville CO

International Classification:

H04L 27/26
H04L 27/34
H04L 27/00
H04B 1/7103

Abstract:

A method of modulating a series of input digital symbols of a first modulation scheme is provided. The method is implemented by a transmitter and includes receiving a sequential series of samples of the digital symbols in a first domain of the first modulation scheme. The first domain is one of the time domain and the frequency domain. The method further includes determining a dual of the first modulation scheme. The dual has a second modulation scheme in a second domain that is different from the first domain the second domain is the other of the time domain and the frequency domain. The method further includes applying a 90 degree rotational operation to the second modulation scheme to generate a rotational modulation format, modulating the series of digital symbols with the generated rotational modulation format, and outputting the modulated series of digital symbols to a receiver.

US Patent:

20190349313, Nov 14, 2019

Filed:

May 3, 2019

Appl. No.:

16/403152

Inventors:

- Louisville CO, US
LIN CHENG - Superior CO, US
LUIS ALBERTO CAMPOS - Superior CO, US
THOMAS SANDHOLM - Mountain View CA, US

International Classification:

H04L 12/927
H04L 12/24
H04W 28/02

Abstract:

The present disclosure generally relates to apparatus, software and methods for managing multi-channel network traffic to alleviate congestion, improve service quality and make efficient use of channel capacity. The disclosed apparatus, software and methods alleviate congestion and improve service quality by minimizing variance within a channel and/or increase overall traffic flow by minimizing the variance between channels. One or both of these objectives can be accomplished using modern portfolio theory to optimize at least one network usage parameter based on the mean and variance of the parameter(s).

US Patent:

20190280763, Sep 12, 2019

Filed:

Mar 14, 2019

Appl. No.:

16/353813

Inventors:

- Louisville CO, US
Lin Cheng - Superior CO, US
Jim O'Connor - Idaho Springs CO, US
Eric Winkelman - Boulder CO, US
Thomas H. Williams - Longmont CO, US
Steve Arendt - Longmont CO, US
Belal Hamzeh - Boulder CO, US

International Classification:

H04B 7/185

Abstract:

A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.

US Patent:

20190238217, Aug 1, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264116

Inventors:

- Louisville CO, US
Lin Cheng - Superior CO, US
Jim O'Connor - Idaho Springs CO, US
Eric Winkelman - Boulder CO, US
Thomas H. Williams - Longmont CO, US
Belal Hamzeh - Westminster CO, US
Steve Arendt - Longmont CO, US

International Classification:

H04B 7/185
H04W 16/20
H04W 52/24
H04B 7/0413
H04W 16/14

Abstract:

A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.