Frequency synthesizer and method thereof

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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Reexamination Certificate

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08059730

ABSTRACT:
A frequency synthesizer and a method thereof. The method comprises grouping the carrier frequencies into first through fifth frequency groups comprising the first to third frequencies, the fourth to sixth frequencies, the seventh to ninth frequencies, the tenth to twelfth frequencies, and the thirteenth to fourteenth frequencies, generating a center frequency of the third frequency group, frequency mixing the center frequency of the third frequency group to produce center frequencies of the first, second, fourth, and fifth frequency groups, and performing frequency mixing on the center frequencies of the first through fifth frequency groups to produce two adjacent frequencies for each center frequency.

REFERENCES:
patent: 6693468 (2004-02-01), Humphreys et al.
patent: 2002/0030546 (2002-03-01), Keating
patent: 2006/0067293 (2006-03-01), Santhoff et al.
patent: 2006/0256884 (2006-11-01), Tomioka et al.
patent: 2007/0008429 (2007-01-01), Cha et al.
patent: 2007/0054682 (2007-03-01), Fanning et al.
patent: 2007/0139124 (2007-06-01), Stadius
patent: 2007/0155350 (2007-07-01), Razavi et al.
patent: 2007/0177653 (2007-08-01), Bjerede
patent: WO 2005/074152 (2005-08-01), None
Batra et al., Texas Instruments et al., Nov. 2003, IEEE P802.15-03/268r2, pp. 1-69.
Liang et al., A Fast-Switching Frequency Synthesizer for UWB Applications, pp. 197-200.
Leenaerts et al., ISSCC 2005/Session 11/Ultra Wideband Solutions/11.2, pp. 202-203, 593.
Sandner et al., A 3Ghz to 7Ghz Fast-Hopping Frequency Synthesizer for UWB, pp. 405-409.
Hyun-Su Chae et al., A Fast Hopping Frequency Synthesizer for UWB Systems in a CMOS Technology, pp. 370-374.
van de Beek et al., Proceedings of ESSCIRC, Grenoble, France, 2005, pp. 173-176.
Lee et al., ISSCC 2005/Session 11/Ultra Wideband Solutions/11.3, pp. 204-205, 593.
Mishra et al., IEEE Transactions on Microwave Theory and Techniques, vol. 53, No. 12, Dec. 2005, pp. 3744-3756.
Lin et al., Subharmonic Direct Frequency Synthesizer for Mode-1 MB-OFDM UWB System in 2005 Symposium on VLSI Circuits Digest of Technical Papers, pp. 38-41; Taipei, Taiwan, R.O.C.

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