Multiplex communications – Generalized orthogonal or special mathematical techniques – Plural diverse modulation techniques
Reexamination Certificate
2006-08-01
2006-08-01
Ho, Duc (Department: 2665)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Plural diverse modulation techniques
C370S334000
Reexamination Certificate
active
07085223
ABSTRACT:
A communication device for receiving and transmitting OFDM signals in a wireless communication system, in which each OFDM signal is composed of a plurality of subcarrier signals each being assigned to a respective transmission channel. The device includes a diversity antenna, examination mechanism adapted for examining, individually for each antenna element, at least one subcarrier signal of an OFDM reception signal received by a respective one of the antenna elements and for gaining, from the result of such subcarrier signal examination, attenuation information on attenuation properties of at least some of the transmission channels associated with the respective antenna element and an amplitude adjustment mechanism adapted for adjusting, individually for each antenna element, the amplitude of at least one subcarrier signal of an OFDM transmission signal to be transmitted from a respective one of said antenna elements in accordance with said attenuation information.
REFERENCES:
patent: 4126828 (1978-11-01), Kumagai
patent: 4509206 (1985-04-01), Carpe et al.
patent: 4955073 (1990-09-01), Sugayama
patent: 5203012 (1993-04-01), Patsiokas et al.
patent: 5771224 (1998-06-01), Seki et al.
patent: 5784363 (1998-07-01), Engstrom et al.
patent: 6304611 (2001-10-01), Miyashita et al.
patent: 0 844 765 (1998-05-01), None
patent: 0 881 782 (1998-12-01), None
patent: 2 300 546 (1996-11-01), None
Ho Duc
Nguye Phuongchau Ba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
SONY International (Europe) GmbH
LandOfFree
Communication device for receiving and transmitting OFDM... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communication device for receiving and transmitting OFDM..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communication device for receiving and transmitting OFDM... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3699959