Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2008-03-04
2008-03-04
Eng, George (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S456100, C455S404200, C455S025000, C455S063400, C342S046000, C342S153000, C342S154000, C342S386000
Reexamination Certificate
active
07340277
ABSTRACT:
An optical subscriber system according to the present invention has an adaptive antenna having a plurality of antenna elements, for controlling the weighting on the antenna elements thereby to radiate beams that are adapted to radio wave environments, a position estimator for estimating the position of a mobile unit, a beam combiner for weighting signals received from the mobile unit by the antenna elements and combining beams, and a weighting coefficient generator for correcting weighting coefficients adapted to radio wave environments, which give initial weights as weights to form nulls in bearings other than the mobile unit based on the position of the mobile unit which has been estimated by the position estimator, for thereby reducing a time required for convergence.
REFERENCES:
patent: 4179696 (1979-12-01), Quesinberry et al.
patent: 4843397 (1989-06-01), Galati et al.
patent: 5317323 (1994-05-01), Kennedy et al.
patent: 5452211 (1995-09-01), Kyrtsos et al.
patent: 5455588 (1995-10-01), Lew et al.
patent: 5515378 (1996-05-01), Roy et al.
patent: 5774829 (1998-06-01), Cisneros et al.
patent: 5838276 (1998-11-01), Chapman et al.
patent: 5856804 (1999-01-01), Turcotte et al.
patent: 6009335 (1999-12-01), Murphy
patent: 6035209 (2000-03-01), Tiedemann, Jr. et al.
patent: 6275186 (2001-08-01), Kong
patent: 6341214 (2002-01-01), Uesugi
patent: 6449484 (2002-09-01), Grubeck et al.
patent: 6456827 (2002-09-01), Kubo et al.
patent: 6473619 (2002-10-01), Kong et al.
patent: 6492942 (2002-12-01), Kezys
patent: 6529745 (2003-03-01), Fukagawa et al.
patent: 6677898 (2004-01-01), Cheng et al.
patent: 6697629 (2004-02-01), Grilli et al.
patent: 6707805 (2004-03-01), Ozluturk et al.
patent: 6718174 (2004-04-01), Vayanos
patent: 6731916 (2004-05-01), Haruyama
patent: 6937865 (2005-08-01), Bloebaum et al.
patent: 2003/0156061 (2003-08-01), Ohira
patent: 0 869 578 (1998-10-01), None
patent: 0926916 (1999-06-01), None
patent: 0 932 218 (1999-07-01), None
patent: 7-87011 (1995-03-01), None
patent: 07-140232 (1995-06-01), None
patent: 8-139661 (1996-05-01), None
patent: 8-274687 (1996-10-01), None
patent: H09-121378 (1997-05-01), None
patent: 11-215049 (1999-08-01), None
patent: H11-252614 (1999-09-01), None
patent: 2000-022618 (2000-01-01), None
patent: 2000-023225 (2000-01-01), None
patent: 2000-023244 (2000-01-01), None
patent: 2000-307504 (2000-11-01), None
patent: WO 97/23785 (1997-07-01), None
Eng George
NEC Corporation
Phan Huy
Sughrue & Mion, PLLC
LandOfFree
Adaptive antenna for controlling the weighting on a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive antenna for controlling the weighting on a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive antenna for controlling the weighting on a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2793909