Xilinx Assigned Patent for Output Driver and Method of Operating the Same
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., Sept. 21 -- Xilinx, San Jose, Calif., has been assigned a patent (8,536,894) developed by Sing-Keng Tan, San Jose, Calif., for an "output driver and method of operating the same."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "In an integrated circuit for an output interface, a comparator is used to compare a reference voltage and a regulated voltage to provide a comparison output. A state machine is coupled to the comparator to increment or decrement a resistance setting output of the state machine responsive to the comparison output. A reference single-ended driver is coupled to receive the resistance setting output from the state machine. An output node of the reference single-ended driver is coupled to a reference node. From the reference node, the reference voltage is input to the comparator as a feedback voltage. Transistors of the reference single-ended driver are set to be in either at least a substantially conductive state or at least a substantially non-conductive state responsive to the resistance setting output to provide an internal source termination resistance as a reference resistance."
The patent application was filed on June 18, 2012 (13/525,582). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8536894.PN.&OS=PN/8536894&RS=PN/8536894
Written by Sudarshan Harpal; edited by Jaya Anand.
(c) 2013 Targeted News Service
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