Yong Liu

US Patent:

6829502, Dec 7, 2004

Filed:

May 30, 2002

Appl. No.:

10/158451

Inventors:

Di-an Hong - Inverness IL
Yong Liu - Hoffman Estates IL
Tom Mathew - Skokie IL
Iwona Turlik - Barrington IL
Weinin Xiao - Hoffman Estates IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

A61B 504

US Classification:

600544, 600558, 34082519, 463 36

Abstract:

Brain response signals of a user, such as electroencephalogram signals, and in particular visually evoked potential signals that correspond to predetermined illumination patterns, are detected and utilized to ascertain selection of specific functions and/or actions as desired by that user. Sources of illumination that exhibit such patterns are arranged to physically correspond to indicia of such functions and actions to facilitate knowing selection thereof.

US Patent:

7920860, Apr 5, 2011

Filed:

Oct 31, 2006

Appl. No.:

11/590709

Inventors:

Anand K. Chari - Bartlett IL, US
Harold Grant Saroka - Ashburn VA, US
Tim Joyce - Naperville IL, US
Patrick J. Walsh - Naperville IL, US
Yong Liu - Schaumburg IL, US
Daniel Bernard McKenna - Vail CO, US

Assignee:

AirCell LLC - Itasca IL

International Classification:

H04W 4/00
H04W 24/00
H04M 1/00

US Classification:

455431, 4554221, 455423, 455424, 4555621

Abstract:

The Multi-Link Aircraft Cellular System makes use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques to improve the call handling capacity of the Air-To-Ground cellular communications network. These additional techniques can include polarization domain and ground antenna pattern shaping (in azimuth, in elevation, or in both planes). Further, if code domain separation is added, dramatic increases in capacity are realized. Thus, the Air-To-Ground cellular communications network can increase its capacity on a per aircraft basis by sharing its traffic load among more than one cell or sector and by making use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques.

US Patent:

8145208, Mar 27, 2012

Filed:

Oct 31, 2006

Appl. No.:

11/590146

Inventors:

Anand K. Chari - Bartlett IL, US
Harold Grant Saroka - Ashburn VA, US
Tim Joyce - Naperville IL, US
Patrick J. Walsh - Naperville IL, US
Yong Liu - Schaumburg IL, US
Daniel Bernard McKenna - Vail CO, US

Assignee:

GoGo LLC - Itasca IL

International Classification:

H04W 4/00

US Classification:

455431, 4554321, 4555621, 4555757

Abstract:

The Multi-Link Aircraft Cellular System makes use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques to improve the call handling capacity of the Air-To-Ground cellular communications network. These additional techniques can include polarization domain and ground antenna pattern shaping (in azimuth, in elevation, or in both planes). Further, if code domain separation is added, dramatic increases in capacity are realized. Thus, the Air-To-Ground cellular communications network can increase its capacity on a per aircraft basis by sharing its traffic load among more than one cell or sector and by making use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques.

US Patent:

8447292, May 21, 2013

Filed:

Oct 31, 2006

Appl. No.:

11/590379

Inventors:

Anand K. Chari - Bartlett IL, US
Harold Grant Saroka - Ashburn VA, US
Tim Joyce - Naperville IL, US
Patrick J. Walsh - Naperville IL, US
Yong Liu - Schaumburg IL, US
Daniel Bernard McKenna - Vail CO, US

Assignee:

GoGo LLC - Itasca IL

International Classification:

H04W 24/00

US Classification:

455424, 455431, 4554321, 455446, 455447, 455448, 455449, 4555621, 4555757

Abstract:

The Multi-Link Aircraft Cellular System makes use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques to improve the call handling capacity of the Air-To-Ground cellular communications network. These additional techniques can include polarization domain and ground antenna pattern shaping (in azimuth, in elevation, or in both planes). Further, if code domain separation is added, dramatic increases in capacity are realized. Thus, the Air-To-Ground cellular communications network can increase its capacity on a per aircraft basis by sharing its traffic load among more than one cell or sector and by making use of multiple physically separated antennas mounted on the aircraft, as well as the use of additional optional signal isolation and optimization techniques.

US Patent:

20110263199, Oct 27, 2011

Filed:

Jun 29, 2011

Appl. No.:

13/172539

Inventors:

Joseph M. Cruz - Naperville IL, US
Patrick J. Walsh - Naperville IL, US
Joseph A. Tobin - Chicago IL, US
Tim Joyce - Naperville IL, US
Yong Liu - Schaumburg IL, US
Anand K. Chari - Bartlett IL, US
Ivica Kostanic - Palm Bay FL, US
Harold G. Saroka - Ashburn VA, US

Assignee:

GOGO LLC - Itasca IL

International Classification:

H04B 7/185

US Classification:

455 121

Abstract:

The present Spectrum Sharing System implements spectrum reuse between aircraft-based Air-To-Ground (ATG) communication systems and Geostationary Satellite Service systems. This is accomplished by managing the radio frequency transmissions in the volume of space in which the aircraft operates, with interference between the Spectrum Sharing System and the Geostationary Satellite Service system being reduced by implementing reversed uplink and downlink radio frequency paths in the common spectrum. The Spectrum Sharing System also avoids interfering with Geostationary Satellite Services' earth stations which are pointed towards the satellites' orbital arc by relying upon a combination of the earth stations' highly directive antenna patterns and the Spectrum Sharing System ground station antenna pattern, and to avoid interfering with satellites in their orbital arc by assuring that power levels radiated in that direction by the Spectrum Sharing System ground stations are below the level that would create interference.

US Patent:

20220278743, Sep 1, 2022

Filed:

May 11, 2022

Appl. No.:

17/741605

Inventors:

- Broomfield CO, US
Yong Liu - Chicago IL, US
Sean S. Cordone - Wheaton IL, US

International Classification:

H04B 7/185

Abstract:

A method of communicating with multiple satellites includes allocating, based on one or more conditions corresponding to a plurality of spatial channels associated with multiple satellites, each subset of a plurality of subsets of antenna resources of a phased array antenna to a respective different satellite included in the multiple satellites. The method also includes commanding one or more transceivers to establish simultaneous communicative connections to the different satellites via the allocated subsets of antenna resources, and re-allocating, based on a detected change to at least one of the one or more conditions, at least one antenna resource to a respective another different satellite. The method also includes commanding the one or more transceivers to maintain the simultaneous communicative connections to the different satellites using the re-allocated at least one antenna resource.

US Patent:

20230006730, Jan 5, 2023

Filed:

Jun 30, 2021

Appl. No.:

17/364165

Inventors:

- Broomfield CO, US
Michael H. Baker - Elmhurst IL, US
Matthew J. Dufner - Elmhurst IL, US
Yong Liu - Chicago IL, US
James P. Michels - Lake Zurich IL, US
Francis Forest - Peachtree Corners GA, US

International Classification:

H04B 7/185
H04W 16/28
H04W 36/00

Abstract:

A first beam is implemented, from a set of vehicle-based antennas, for current or future communication with a ground-based or satellite-based network via an external antenna (e.g., of a base station or satellite). A second beam may be implemented to detect or determine a better pointing angle for the first beam, thereby “fine tuning” the pointing angle for the first beam. Specifically, the second beam may be “swept” through a range of pointing angles while a signal parameter representing signal quality or strength is measured, detected, or calculated at each pointing angle. The values for the signal parameter may be evaluated to identify a desired value and the pointing angle at which the desired value was obtained. The first beam may be reoriented or repointed at the desired pointing angle, and one or more nodes of vehicle-based communication system may communicate with an external network via the first beam.

US Patent:

20210135745, May 6, 2021

Filed:

Jan 11, 2021

Appl. No.:

17/146106

Inventors:

- Broomfield CO, US
Yong Liu - Chicago IL, US
Sean S. Cordone - Wheaton IL, US

International Classification:

H04B 7/185

Abstract:

Techniques, systems, devices, and methods for utilizing a mobile communicator for communicating with multiple satellites, e.g., simultaneously over an interval of time, are disclosed. The mobile communicator is disposed on a vehicle, and the multiple satellites may be disposed in different satellite constellations operating in different orbits. The mobile communicator establishes multiple communication links to the multiple satellites by utilizing only the set of antenna resources provided by a single antenna platform or array. Subsets of the antenna resources are dynamically apportioned and adapted, e.g., while the vehicle travels, to establish and maintain different communication links to different satellites via different spatial channels and their respective air interfaces to thereby maintain optimal satellite communicative connectivity. On-board connectivity services for personal electronic devices and/or other on-board applications may be supported by the disclosed techniques.