Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2006-02-28
2006-02-28
Phan, Dao (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C342S368000
Reexamination Certificate
active
07006041
ABSTRACT:
A radio receiver includes a plurality of antenna elements for receiving a radio signal from a radio transmitter; a setting part changing an impedance of at least one of the plurality of antenna elements according to an instruction signal; a measuring part measuring a change in throughput in a received signal caused due to the change in the impedance; and an instruction part providing the instruction signal which is changed in response to the measurement result.
REFERENCES:
patent: 5999889 (1999-12-01), Tietsworth
patent: 6448924 (2002-09-01), Hafer, Jr.
patent: 6643497 (2003-11-01), Kouyama
patent: 6768472 (2004-07-01), Alexopoulos et al.
patent: 2004/0009754 (2004-01-01), Smith
patent: 1 233 565 (2002-08-01), None
patent: 1229664 (2002-08-01), None
patent: WO 9943096 (1999-08-01), None
patent: WO0079769 (2000-12-01), None
patent: WO 01/35490 (2001-05-01), None
Tetsushi ABE, et al., “A Hybrid MIMO System Using Spatial Correlation”, IEEE, vol. 3, XP-010619313, Oct. 27, 2002, pp. 1346-1350.
Gerald J. Foschini, et al., “Simplified Processing for High Spectral Efficiency Wireless Communication Employing Multi-Element Arrays”, IEEE Journal on Selected Areas in Communications, vol. 17, No. 11, Nov. 1999, pp. 1841-1852.
Sirikiat Lek Ariyavisitakul, “Turbo Space-Time Processing to Improve Wireless Channel Capacity”, IEEE Transactions on Communications, vol. 48, No. 8, Aug. 2000, pp. 1347-1359.
Katsumi Sakai, et al., “Study of Multi-point Repeater System with Multiple Input Multiple Output Method”, The Institute of Electronics, Information and Communication Engineers Technical Report of IEICE, pp. 125-132, (with English Abstract).
Fujii Hiromasa
Suda Hirohito
Tomisato Shigeru
NTT DoCoMo Inc.
Phan Dao
LandOfFree
Radio receiver, radio transmitter and impedance control method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radio receiver, radio transmitter and impedance control method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio receiver, radio transmitter and impedance control method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3684858