DAVID JAY SCHWARTZ
Pilots at Chesapeake Dr, Tualatin, OR
License number
Oregon A1695921
Issued Date
Jun 2015
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
19315 SW Chesapeake Dr, Tualatin, OR 97062
Personal information
See more information about DAVID JAY SCHWARTZ at radaris.comName
Address
Phone
130 Cindy Ln, Grants Pass, OR 97526
Professional information
Pilot Beacon System
US Patent:
2011017, Jul 21, 2011
Filed:
Jan 19, 2011
Appl. No.:
13/009803
Inventors:
David Jay Schwartz - Tualatin OR, US
Assignee:
CELLULAR SPECIALTIES, INC. - Manchester NH
International Classification:
H04W 64/00, H04B 17/00
US Classification:
4554561, 455 6711
Abstract:
A system of and method of accurate positioning of a wireless handset combines a positioning signal with the communication signal. For locations where a wireless handset cannot receive an adequate signal, the system receives a carrier signal either through a donor antenna, exterior the building, or a base station connected to the carrier. In addition to a communication signal, the system adds a location signal to assist the wireless handset in determining the wireless handset's location. The power level of the location signal, a pilot beacon signal, is adjusted so to be sufficiently strong but not at a level that will cause interference with the communication signal. The pilot beacon signal uses a different path than the communication signal to minimize delays. In addition, the system adjusts the offset, either positively or negatively, to account for timing delays caused by hardware and cables. The pilot beacon signal has multiple channels so that each repeating antenna has a distinct pilot beacon signal. Each handset always hears a pilot beacon signal, regardless of what channel the handset picks to communicate on.
Multiple Beam Antenna Base Station
US Patent:
8199724, Jun 12, 2012
Filed:
Sep 25, 2006
Appl. No.:
11/526543
Inventors:
David J. Schwartz - Tualatin OR, US
Assignee:
XR Communications, LLC - New York NY
International Classification:
H04M 1/00, H04B 1/38, H04B 7/00, H04B 7/216, H04W 36/00, H04W 4/00
US Classification:
370334, 370335, 370328, 370338, 455561, 4555621, 455507, 455560, 4555757, 455436
Abstract:
Systems, devices and method are provided in association with a multiple beam antenna base station. One system embodiment includes a multiple beam antenna base station configured to communicate data to a number of subscriber stations using a number of multiple antenna beams. The multiple beam antenna base station is implemented with an independent receiver for each of the number of multiple antenna beams. In various embodiments, each of the independent receivers of the multiple beam antenna base station is configured to determine signal quality of a preamble of an uplink transmission from a subscriber station via the number of multiple antenna beams.