Edmund H Christy
age ~85
from Metairie, LA
- Also known as:
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- Edmund Harris Christy
- Edmund H Christyjr
- Phone and address:
- 7 Paladin Pl, Metairie, LA 70005
Edmund Christy Phones & Addresses
- 7 Paladin Pl, Metairie, LA 70005
- 78428 Limpopo Rd, Folsom, LA 70437 • 985 796-3266
- Pass Christian, MS
- New Orleans, LA
Us Patents
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High Frequency Spread Spectrum Positioning System And Method Therefor
view source -
US Patent:46654046, May 12, 1987
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Filed:Oct 19, 1984
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Appl. No.:6/662889
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Inventors:Edmund H. Christy - Metairie LA
Robert E. Rouquette - New Orleans LA
Lawrence Van Doren - San Diego CA -
Assignee:Offshore Navigation, Inc. - Harahan LA
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International Classification:G01S 124
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US Classification:342463
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Abstract:The system includes a method and apparatus for transmitting a spread spectrum signal from each of a plurality of base stations. The spread spectrum signal has a predetermined timing and has a ground wave component and a sky wave component. The signal is transmitted with a repetition time at least as great as a maximum anticipated delay time of the sky wave component such that the ground wave component of the transmitted spread spectrum signal can be distinguished from the sky wave component. The signal is detected at each of a plurality of mobile stations and the timing of the detected signal is compared to a local timing signal. The phase difference between these signals is indicative of the range of the base station from the mobile station.
Name / Title
Company / Classification
Phones & Addresses
NAVIGATION DATA SYSTEMS, INC
5701 Plauche Ct, New Orleans, LA 70123
PO Box 23850, New Orleans, LA 70183
#7 Paladin Pl, Metairie, LA 70005
PO Box 23850, New Orleans, LA 70183
#7 Paladin Pl, Metairie, LA 70005
PALADIN ELECTRONIC SYSTEMS, INCORPORATED
7 Paladin Pl, Metairie, LA 70005
C/O Edmund H Christy, Metairie, LA 70005
C/O Edmund H Christy, Metairie, LA 70005
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