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Walter James Dr Kleinfelder, 612814 Broadview Dr, Annapolis, MD 21401

Walter Kleinfelder Phones & Addresses

2814 Broadview Dr, Annapolis, MD 21401    410-2242921    410-2669630   

908 Topmast Ct, Annapolis, MD 21401    410-2242921   

9934 Nethy Bridge Ct, Bristow, VA 20136    703-3678518   

8100 Juliet Ln, Manassas, VA 20109    703-3678518   

584 Benedict Rd, West Point, NY 10996    914-4467236   

Mount Laurel, NJ   

Hopewell Junction, NY   

Hardy, VA   

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Walter Kleinfelder

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Us Patents

Method Of Locating A Transmitter

US Patent:
8068850, Nov 29, 2011
Filed:
Mar 4, 2008
Appl. No.:
12/074512
Inventors:
Walter J Kleinfelder - Annapolis MD, US
James E Meister - North Potomac MD, US
Assignee:
The United States of America as represented by the Director, National Security Agency - Washington DC
International Classification:
H04Q 7/20
US Classification:
4554561, 4554566, 4554563, 4554042, 4554321, 4554351, 342457, 342450, 342453
Abstract:
A method of locating a transmitter is disclosed. A communications link is established between multiple receiving stations and a control station, and used with a calibration signal to calibrate out the time delay of the communications link. A radiated signal from an unknown transmitter is received at a receiving station and sent to the control station over the communications link. The time of arrival is recorded. Upon receiving a user input, the communication link switches from transmitting the received radiated signal to transmitting the calibration signal. The start of calibration signal is timed to begin at the same time across all of the receiving stations. The communication link time delay for each link is calculated by subtracting the start time from the received time, and the communication link time delay is subtracted from the received time recorded for the radiated signal. TDOA calculations are made to locate the transmitter.

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Walter Kleinfelder

Address:
9934 Nethy Brg Ct, Bristow, VA 20136
Phone:
703-3678518
VIN:
2HJYK16587H523029
Make:
HONDA
Model:
RIDGELINE
Year:
2007

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