Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-02-12
2000-04-18
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455562, H04B 138
Patent
active
060525827
ABSTRACT:
The preferred embodiment of the present invention is a communications apparatus which includes a first transmitting antenna array (15A) having a transmitting antenna (16) which is dedicated to serve only a first sector (12). Similarly, a second transmitting antenna array (17A) having a transmitting antenna (18) is dedicated to serve only a second sector (14). Each of the transmitting antenna arrays (15A, 17A) have a beamwidth (19) of generally less than fifteen degrees. Both the first and the second transmitting antenna arrays (15A, 17A) emanate shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors.
REFERENCES:
patent: 2288802 (1942-07-01), Hammond, Jr.
patent: 4525861 (1985-07-01), Freeburg
patent: 4528656 (1985-07-01), Morais
patent: 4633463 (1986-12-01), Mack
patent: 4704733 (1987-11-01), Kawano
patent: 4747160 (1988-05-01), Bossard
patent: 4783664 (1988-11-01), Karikomi et al.
patent: 4785450 (1988-11-01), Bolgiano et al.
patent: 4845504 (1989-07-01), Roberts et al.
patent: 4916737 (1990-04-01), Chomet et al.
patent: 4920567 (1990-04-01), Malek
patent: 5003384 (1991-03-01), Durden et al.
patent: 5021801 (1991-06-01), Smith et al.
patent: 5175878 (1992-12-01), Davis et al.
patent: 5212830 (1993-05-01), Miller
patent: 5280297 (1994-01-01), Profera, Jr.
patent: 5319455 (1994-06-01), Hoarty et al.
patent: 5388101 (1995-02-01), Dinkins
patent: 5491739 (1996-02-01), Wadin et al.
patent: 5581260 (1996-12-01), Newman
patent: 5649293 (1997-07-01), Reed
patent: 5771449 (1998-06-01), Blasing et al.
"Xerox Corporation Petition for Rule Making" submitted to the Federal Communications Commission (RM-3247) filed Nov. 16, 1978 including appendixes, 135 pages.
"Reply of Xerox Corporation" submitted to the Federal Communications Commission (RM-3247) filed Jan. 30, 1979, 20 pages.
"Comments of Xerox Corporation" submitted to the Federal Communications Commission (RM-3247) filed Jan. 14, 1980, 75 pages.
George Jacobs, "Low Power Television", IEEE Spectrum, Jun. 1982.
Donald Silverman, "The Digital Termination System Solution for High Speed Local Distribution", Microwave Journal, Jan. 1983.
Cooper & Nettleton, "Cellular Mobile Technology: The Great Multiplier", IEEE Spectrum, Jun. 1983.
Murakami et al., "Multiple Access Digital Microwave Radio System for Local Subscribers", IEEE International Conference on Communications '83, Jun. 1983, pp. b.2.5.1.
Urich & Bohm, "Digital Termination Systems", Computerworld, 6 Jun. 1984, pp. 35-38.
Mihelich, "Mitchell Commits to Cellular Television Study", Private Cable, Feb. 1991.
Hardy & Lemp, "New Autoplex Cell Site Paves the Way for Digital Cellular Communications", AT&T Technology, No.4, 1990, pp. 20-25.
Edward C. Dufort, "Constrained Feeds for Limited Scan Arrays", IEEE, May 1978, pp. 407-413.
Robert J. Maillous, "An Overlapped Subarray for Scan Application", IEEE Transactions on Antennas and Propogation, May 1974, pp. 487-489.
Blasing Raymond R.
Keible Edward A.
Likins Paul
Lockie Douglas G.
Mohwinkel Clifford A.
Anderson Edward B.
Bhattacharya Sam
Eisenzopf Reinhard J.
Endlink Corporation
Giaccherini Thomas N.
LandOfFree
Sectorized multi-function communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sectorized multi-function communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sectorized multi-function communication system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2344266