Data output clock selection circuit for quad-data rate...

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C716S030000, C713S400000, C326S093000, C714S814000

Reexamination Certificate

active

11278368

ABSTRACT:
A method for selecting a data output clock signal includes providing a complementary output clock signal pair to a combinational logic circuit, thereby generating a reset control signal. The reset control signal is activated if the complementary output clock signals have different values, and deactivated if these clock signals have the same predetermined value. The activated reset control signal asynchronously resets a pair of series connected flip-flops. The deactivated reset control signal enables the flip-flops to synchronously propagate a fixed logic signal in response to a clock signal of a complementary input clock signal pair. The output signal of the series-connected flip-flops is used to select the data output clock signal from the first complementary clock signal pair and the second complementary clock signal pair.

REFERENCES:
patent: 6651231 (2003-11-01), Morikawa
patent: 6844764 (2005-01-01), Xiao et al.
patent: 6891409 (2005-05-01), Furuya
patent: 7334152 (2008-02-01), Morigaki
patent: 2002/0070776 (2002-06-01), Ishiwaki
patent: 2003/0131276 (2003-07-01), Dixon et al.
patent: 2004/0085109 (2004-05-01), Hariharan et al.
patent: 2004/0246035 (2004-12-01), Karatani et al.
patent: 2005/0110545 (2005-05-01), Mahrla
patent: 2005/0138458 (2005-06-01), Smith et al.
patent: 2005/0179476 (2005-08-01), Sweet

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

Data output clock selection circuit for quad-data rate... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data output clock selection circuit for quad-data rate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data output clock selection circuit for quad-data rate... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3957647

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