Abstract:
Circuits, methods, and apparatus for training a phase shift circuit to provide a phase shift for improved date recovery. A specific embodiment of the present invention provides a variable delay cell. A delay through the variable delay cell is changed while training patterns are received. The presence of errors in the received data pattern is tracked, and from the presence or absence of errors a preferred delay is selected and used for receiving data.
Abstract:
Circuits, methods, and apparatus for training a phase shift circuit to provide a phase shift for improved date recovery. A specific embodiment of the present invention provides a variable delay cell. A delay through the variable delay cell is changed while training patterns are received. The presence of errors in the received data pattern is tracked, and from the presence or absence of errors a preferred delay is selected and used for receiving data.
Abstract:
Methods and apparatus for introducing a gas into the reaction zone of a reactor, which more evenly distribute the gas throughout the reaction zone. Spargers for introducing a gas into the reaction zone of a reactor can be employed in systems and methods for carrying out the liquid-phase oxidation of an oxidizable compound, such as para-xylene. The reactor of this embodiment comprises a sparger disposed in the reaction zone for introducing fluid into the reaction zone. The sparger of this embodiment comprises at least three radially-extending fluid distribution conduits, where each fluid distribution conduit defines at least three fluid discharge openings, where the radial spacing of the fluid discharge openings associated with each of the fluid distribution conduits decreases outwardly, and where the sparger has a maximum diameter that is at least 90 percent of the diameter of the reaction zone at the elevation where the sparger is disposed.
Abstract:
Methods and apparatuses that enable memory devices to inform graphical processing systems about the results of WRITE de-skew training. A WRITE-TRAINING mode is added to a memory device. When the WRITE-TRAINING mode is asserted the memory data mask (DM) pin is converted to an output port. Incoming WRITE data is strobed-into the memory device and the resulting data pattern is compared to a desired pattern. If the incoming WRITE data and strobed-in data match, that result is sent to the graphical processing system by setting the DM pin HIGH. If the incoming WRITE data and the strobed-in data do not match, that result is sent to the graphical processing system by setting the DM pin LOW. Beneficially, the incoming data and the desired pattern are derived from pseudo random bit sequence (PRBS) sources.
Abstract:
Methods and apparatus for introducing a gas into the reaction zone of a reactor. Such methods and apparatus can more evenly distribute the gas throughout the reaction zone. Spargers for introducing a gas into the reaction zone of a reactor can be employed in systems and methods for carrying out the liquid-phase oxidation of an oxidizable compound, such as para-xylene.