JOHN THOMAS PRATT
Pilots at Century Dr, Salem, OR

License number
Oregon A3573223
Issued Date
Apr 2016
Expiration Date
Apr 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
4572 Century Dr S, Salem, OR 97302

Professional information

John Pratt Photo 1

Integrated Datalinks In A Surveillance Receiver

US Patent:
6545631, Apr 8, 2003
Filed:
Oct 17, 2001
Appl. No.:
09/981677
Inventors:
Craig William Hudson - Amity OR
John Thomas Pratt - Salem OR
Assignee:
United Parcel Service of America, Inc. - Atlanta GA
International Classification:
G01S 1393
US Classification:
342 30, 342 32, 342 36, 342 37, 342 42, 342 46
Abstract:
A surveillance transceiver system is provided for receiving extended squitters from Mode S transponders, translating the squitters into ADS-B state vectors in UAT format, and transmitting the ADS-B state vectors using a Universal Access Transceiver (UAT) datalink. The surveillance transceiver system bridges the gap created by differently-equipped aircraft by using multiple datalinks to provide seamless ADS-B surveillance. The module for processing the extender squitters includes a 1090 MHz receiver and a computer processor in communication with the UAT processor for parsing the squitter and composing the ADS-B state vector in UAT format for broadcast.


John Pratt Photo 2

Method And System For Displaying Target Icons Correlated To Target Data Integrity

US Patent:
6469660, Oct 22, 2002
Filed:
Apr 13, 2001
Appl. No.:
09/835091
Inventors:
Steve Horvath - Salem OR 97304
Robert M. Grove - Newberg OR 97132
John T. Pratt - Salem OR 97302
International Classification:
G01S 1300
US Classification:
342179, 342182, 342183, 340961
Abstract:
A method is provided for determining the integrity of incoming target data and for assigning and displaying a target icon correlated to the target data integrity. Target data integrity depends on the both accuracy and the timeliness of the position data being broadcast about the target. Target data integrity is monitored continuously to display a target icon correlated to the current integrity level. Changes in the target icon alert the flight crew or other user to changes in target data integrity. The icon attributes used to communicate a change in integrity do not interfere with other icon attributes used to communicate other characteristics of a target.