Method and apparatus for providing coherent phase noise in...

Pulse or digital communications – Transceivers

Reexamination Certificate

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C375S220000, C375S356000, C455S296000, C455S073000, C370S537000, C327S147000, C331S014000, C710S312000

Reexamination Certificate

active

07826519

ABSTRACT:
A method and circuit for providing coherent phase noise including a clock receiver to receive a clock signal generated external to the circuit and a local clock source arranged on the circuit. The circuit further includes a selector to select an output of one of the clock receiver and the local clock source and a wireless transceiver responsive to an output of the selector.

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patent: 2006/0250168 (2006-11-01), Starr et al.
Rogers et al. (A Multiband ΔΣ Fractional-N Frequency Synthesizer for a MIMO WLAN Transceiver RFIC; IEEE Journal of Solid-State Circuits, vol. 40, No. 3; Mar. 2005).
IEEE Journal of Solid-State Circuits, vol. 38, No. 6, Jun. 2003, pp. 1015-1027; A Unified Model for Injection-Locked Frequency Dividers; Shwetabh Verma, Hamid R. Rategh, and Thomas H. Lee, Member.
Proceedings of the I.R.E. and Wave and Electrons; Jun. 1946; A Study of Locking Phenomena in Oscillators, Rober Adler.
IEEE Journal of Solid-State Circuits, vol. 40, No. 8, Aug. 2005, pp. 1629-1641; A Fully Integrated Multiband MIMO WLAN Transceiver RFIC; David G. Rahn, Mark S. Cavin, Fa Foster Dai, Neric H. W. Fong, Richard Griffith, José Macedo, A. David Moore, John W. M. Rogers, and Mike Toner.

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