Andrew H Tran

US Patent:

8538373, Sep 17, 2013

Filed:

May 25, 2011

Appl. No.:

13/115680

Inventors:

Michael Koontz - Chantilly VA, US
Andrew Tran - Herndon VA, US
James Sherman - Penn Laird VA, US
Jake Gunderson - Clearwater FL, US

Assignee:

Blackbird Technologies, Inc. - Herndon VA

International Classification:

H04M 11/04

US Classification:

4554042, 4554041, 4554561

Abstract:

An apparatus includes a set of network communication modules, a communication control module and an input actuator. Each network communication module from the set of network communication modules is configured to send signals to and receive signals from a remote device via a distinct communication mode from a set of communication modes. The communication control module is configured to periodically send a set of second status signals intended to be sent to the remote device via each communication mode from the set of communication modes when the communication control module is in an emergency operating mode and the communication mode is available. The communication control module is configured to switch from the default operating mode to the emergency operating mode in response to receiving an input signal indicating that the input actuator has been actuated.

US Patent:

20190113627, Apr 18, 2019

Filed:

Oct 16, 2018

Appl. No.:

16/162177

Inventors:

- Waltham MA, US
Steven Talbot Hildner - Leesburg VA, US
Andrew Hoai Tran - Herndon VA, US
Meera Krishnan - Centreville VA, US
Eric Arthur Banwart - Apex NC, US
Kevin Craig Holley - Reston VA, US
Torsten Albert Staab - Bristow VA, US

International Classification:

G01S 19/26
G08G 1/00
G01S 19/25
G01S 19/46
G01S 19/47
G01C 21/16

Abstract:

An on-board system for location estimation and communication for a vehicle. In some embodiments, the on-board system includes a global navigation satellite system receiver, an inertial sensing system, a wireless receiver, and a processing circuit. The wireless receiver includes at least one of a cellular communications receiver, and a wireless local area networking receiver. The processing circuit is configured: to determine whether a global navigation satellite system signal is present, and in response to determining that a global navigation satellite system signal is present, to store, in the processing circuit: a current location estimate generated by the global navigation satellite system receiver, and a characterization of a radio-frequency environment measured by the wireless receiver; and in response to determining that a global navigation satellite system signal is not present, to estimate a location of the vehicle based on a characterization of a radio-frequency environment measured by the wireless receiver.

US Patent:

20190049592, Feb 14, 2019

Filed:

Aug 1, 2018

Appl. No.:

16/052501

Inventors:

- Waltham MA, US
Andrew H. Tran - Herndon VA, US
Eric A. Banwart - Ellicott City MD, US
Steven T. Hildner - Leesburg VA, US

International Classification:

G01S 19/26
G01S 3/14
H01Q 1/24

Abstract:

A multimode tracking device includes a line of site (LOS) antenna; an LOS modem for communicating with other multimode tracking devices and for measuring power of a received signal; a satellite antenna; a satellite modem for communicating with a satellite for receiving and sending text messages, data and commands to and from external devices including a tracking and locating system; a Bluetooth or WiFi Direct interface for communicating with external mobile devices; an inertia measurement unit for providing motion tracking information; a user interface for interfacing with a user; and a processor for generating and displaying a line of bearing to the target on the display, based on the measured power and the motion tracking information. The multimode tracking device tracks assets and personnel and sends/receives text messages, data and commands to/from external devices both over the horizon via the satellite and locally via the LOS modem.