Pulse or digital communications – Spread spectrum
Reexamination Certificate
2008-01-22
2008-01-22
Ahn, Sam K. (Department: 2611)
Pulse or digital communications
Spread spectrum
Reexamination Certificate
active
07321608
ABSTRACT:
Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. At least one of the successive groups includes at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF. This digital cue is converted into the base pulse, and the base pulse is filtered using a high-pass filter for providing a pulse of the ultra wideband type within the window with a temporal accuracy equal to 1/N*Fe.
REFERENCES:
patent: 6212230 (2001-04-01), Rybicki et al.
patent: 7145954 (2006-12-01), Pendergrass et al.
patent: 1280308 (2003-01-01), None
patent: 01/22672 (2001-03-01), None
Wu et al. High Performance Ultra-Wide Bandwidth Systems Via Novel Pulse Shaping and Freqeuncy Domain Processing IEEE, 2002, p. 53-58.
Kelly et al., PulsON Second Generation Timing Chip: Enabling UWB Through Precise Timing, IEEE Conference on Ultra Wideband Systems and Technologies, May 21-23, 2002, pp. 117-121, XP002248937.
Han et al., A New Ultra-Wideband, Ultra-Short Monocycle Pulse Generator with Reduced Ringing, IEEE Microwave and Wireless Components Letters, vol. 12, No. 6, Jun. 2002, pp. 206-208, XP001123622.
Yansheng et al., An Ultra-Wide Band Orthogonal Digital Signal Generator, International Conference on Signal Processing Proceedings, Aug. 21-25, 2000, pp. 2086-2090, vol. 3, XP002248938.
Agee et al., Ultra-Wideband Transmitter Research, IEEE International Workshop on High Power Microwave Generation and Pulse Shortening, vol. 26, No. 3, Jun. 10-12, 1997, pp. 860-873, XP002248939.
Wu et al., Ultra Wideband DS-CDMA Via Innovations in Chip Shaping, IEEE Vehicular Technology Conference, Oct. 7-11, 2001, pp. 2470-2474, vol. 4, XP002248940.
Helal Didier
Smaini Lydi
Ahn Sam K.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Jorgenson Lisa K.
STMicroelectronics N.V.
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