Frequency domain partial response signaling with high...

Pulse or digital communications – Transceivers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S260000, C375S263000

Reexamination Certificate

active

10793017

ABSTRACT:
The system includes a transmitter for generating a signal in the time domain and transforming the signal to the frequency domain, wherein the transmitter suppresses a plurality of sub-carriers of the signal, The resulting truncated signal is transmitted to the receiver through a noisy channel. The receiver receives a noisy signal and recovers the carrier signal and, hence, the partial response signal from the noisy signal. The method includes selecting a cyclic convolver having predefined values, applying the cyclic convolver to a signal to produce a partial response signal, dropping a plurality of sub-carriers of the partial response signal, to generate a modulated carrier signal that is ready for transmission.

REFERENCES:
patent: 5675611 (1997-10-01), Lehtinen et al.
patent: 5787113 (1998-07-01), Chow et al.
patent: 6157593 (2000-12-01), Costa et al.
patent: 6175551 (2001-01-01), Awater et al.
patent: 6563841 (2003-05-01), Nedic et al.
patent: 6631175 (2003-10-01), Harikumar et al.
patent: 6657950 (2003-12-01), Jones et al.
Vadde, Venkatesh, “PAPR Reduction by Envelope Stabiliazation with Partial Response Signalling in OFDM Systems”, 2001 IEEE Radio And Wireless Conference, Aug. 10-11, 2001, pp. 197-201.
Kabal, Peter, et al., “Partial-Response Signaling”, IEEE Transactions On Communications, vol. Com-23, No. 9, Sep. 1975, pp. 921-934.
Zhao, Y. et al., “Intercarrier Interference Compression in OFDM Communication Systems by Using Correlative Coding”, Aug. 1998, IEEE Communications Letters, vol. 2, No. 8, pp. 214-216.
Zhao, Y., “In-Band and Out-Band Spectrum Analysis of OFDM Communication Systems using ICI Cancellation Methods”, HTML version, Aug. 21-25, 2000, Proceedings of 16thInternational Conference on Communication Technology, vol. 1, 6 pgs.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Frequency domain partial response signaling with high... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency domain partial response signaling with high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency domain partial response signaling with high... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3885479

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.