Systems and methods for determining an out of band signal

Details Systems and methods for determining an out of band signal Systems and methods for determining an out of band signal

2008-02-28

2011-10-25

Ismail, Shawki S (Department: 2819)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C375S355000, C327S141000, C326S093000

Reexamination Certificate

active

08044688

ABSTRACT:
Various embodiments of the present invention provide systems and circuits that provide for out of band detection. As one example, an out of band detection circuit is disclosed that includes an input signal, a clock generation circuit, and a sampling circuit. The clock generation circuit receives the input signal and derives therefrom a sampling clock, and the sampling circuit is operable to sample the input signal at a time indicated by the sampling clock.

REFERENCES:
patent: 2005/0220242 (2005-10-01), Ogasawara
patent: 2006/0197564 (2006-09-01), Yen
patent: 2006/0197692 (2006-09-01), Gong et al.
patent: 2007/0047690 (2007-03-01), Zhao et al.
Dipaolo et al., “Serial ATA Physical Link Initialization with the GTP Transceiver of Virtex-5 LXT FPGAs”, Application Note: Virtex-5 FPGAs, Jan. 3, 2008, pp. 1-16.
Deyring ed., “Serial ATA: High Speed Serialized AT Attachment”, Serial ATA Workgroup, Aug. 29, 2001, pp. 1-307.

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