Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2011-04-12
2011-04-12
Nguyen, Linh V (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S086000, C326S115000, C326S120000, C327S083000, C327S108000, C327S209000, C327S309000, C330S252000, C330S253000, C330S255000
Reexamination Certificate
active
07924056
ABSTRACT:
A low voltage differential signalling driver is provided in which a first output node and a second output node provide a differential signal. First differential steering switch circuitry is switched in dependence on a differential input signal to selectively connect the first output node to a voltage supply via a current source, while second differential steering circuitry is switched in dependence on an inverse version of the differential input signal to connect the second output node to the voltage supply via the current source. Slew control circuitry is provided, configured to establish a current discharge path for the current source during the polarity transition of the differential input signal, thus maintaining a symmetric slew rate of the output signals at the first output node and second output node.
REFERENCES:
patent: 5883535 (1999-03-01), Kato
patent: 5942940 (1999-08-01), Dreps et al.
patent: 6392485 (2002-05-01), Doi et al.
patent: 6411126 (2002-06-01), Tinsley et al.
patent: 7034574 (2006-04-01), Li
patent: 7342450 (2008-03-01), Jones
patent: 7548114 (2009-06-01), Yu
patent: 7548117 (2009-06-01), Zhang et al.
patent: 7586373 (2009-09-01), Kim
patent: 7652533 (2010-01-01), Wang et al.
patent: 7808486 (2010-10-01), Griffin
patent: 2002/0158691 (2002-10-01), Blankenship et al.
patent: 2003/0122593 (2003-07-01), Volk
Babu Tippana Hari
Dwivedi Sandeep
Kumar Nidhir
ARM Limited
Nguyen Linh V
Nixon & Vanderhye P.C.
LandOfFree
Low voltage differential signalling driver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low voltage differential signalling driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low voltage differential signalling driver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2640129