Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2007-12-11
2007-12-11
Corrielus, Jean B. (Department: 2611)
Pulse or digital communications
Transmitters
Antinoise or distortion
C375S285000
Reexamination Certificate
active
10088218
ABSTRACT:
A method of transmitting wireless signals and a transmitter for transmitting wireless signals for optimally operate an amplifier of a transmitter in its linear range, signals being transmitted in orthogonal frequency division multiplexing (OFDM). The amplitudes of the OFDM signals that lie above a predefined threshold are eliminated using an additive correction signal, the phase of the OFDM signals being impressed on the additive correction signal. Furthermore, a correction signal is formed and subtracted from the OFDM signals, until there are no more amplitudes of the OFDM signal above the predefined threshold. Gauss pulses are used as correction signals due to their simple handling. Oversampling of the OFDM signals determines the amplitude values of the OFDM signals.
REFERENCES:
patent: 3577165 (1971-05-01), Helliwell et al.
patent: 4615040 (1986-09-01), Mojoli et al.
patent: 5262734 (1993-11-01), Dent et al.
patent: 5384547 (1995-01-01), Lynk et al.
patent: 5486789 (1996-01-01), Palandech et al.
patent: 5524286 (1996-06-01), Chiesa et al.
patent: 5598436 (1997-01-01), Brajal et al.
patent: 5732333 (1998-03-01), Cox et al.
patent: 6125266 (2000-09-01), Matero et al.
patent: 6166601 (2000-12-01), Shalom et al.
patent: 6265949 (2001-07-01), Oh
patent: 44 41 323 (1996-05-01), None
patent: 0 735 731 (1996-10-01), None
patent: 0 743 768 (1996-11-01), None
Lampe M. et al: “Reducing Out-Of-Band Emissions Due to Nonlinearities in Ofdm Systems”,1999 EEE 49thVehicular Technology Conference. Moving Into a New Millenium, Houston TX, United States, May 16-20, 1999.
Hentati Nabil
Schrader Marc
Corrielus Jean B.
Kenyon & Kenyon LLP
Robert & Bosch GmbH
LandOfFree
Method and transmitter for transmitting radio signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and transmitter for transmitting radio signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and transmitter for transmitting radio signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3877072