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1012results about How to "Efficient configuration" patented technology

Scoreboarding for DRAM access within a multi-array DRAM device using simultaneous activate and read/write accesses

A method and apparatus for performing memory array/row scoreboarding in a dynamic access memory (DRAM) having dual bank access. The DRAM of the present invention allows dual simultaneous memory accesses into a memory divided into a plurality of arrays (e.g., 48 arrays). Each array of the DRAM contains a plurality of rows (e.g., 256). Each row of the DRAM contains storage for a certain amount of data bits (e.g., 1024). The DRAM in one configuration contains 1.5 Megabytes of memory. During a dual bank DRAM access, the system allows a first access for pre-opening a row (e.g., a page) of DRAM memory within a first array while simultaneously allowing a second access for reading/writing data to an opened row of another array aside from the first array. The present invention scoreboarding system tracks the rows that are currently open so that immediate read/write accesses can take place. Upon presentation of a row and array, the scoreboard determines if the presented row is currently open, and if so, generates a hit signal that allows an immediate read/write access to the presented row. If the presented row is not open, the present invention generates a miss signal so that the row can be immediately opened before access is allowed. The scoreboard contains a memory unit containing row information for each array in the DRAM. The scoreboard, in addition to other novel features, allows an efficient DRAM configuration allowing dual memory accesses per cycle.
Owner:XYLON LLC

V2G technology-based power distribution scheduling control method for electric vehicles

The invention discloses a V2G technology-based power distribution scheduling control method for electric vehicles. According to the power distribution scheduling control method, besides that the influences of charge and discharge power of the electric vehicles are considered, the limiting factors of the capacity of a power distribution network, technical conditions of the electric vehicles and the like are also considered; the traffic factors of drive routes, charging/discharging access and the like of the electric vehicles are further considered; optimized charging and discharging scheduling strategies, for the electric vehicles, conforming to the reality are comprehensively determined; charging and discharging of the electric vehicles are controlled by a V2G system; and the power distribution scheduling control on the electric vehicles is achieved. The embodiment and related data show that according to the V2G technology-based power distribution scheduling control method for the electric vehicles, the negative effects on the system reliability due to the fact that the electric vehicles are accessed on a large scale can be effectively improved; the load utilization rate of the power distribution network is improved; the load peak and off-peak difference of the power distribution network is reduced; and improvement of power distribution scheduling economical efficiency of the electric vehicle and power distribution network operation economical efficiency is helped.
Owner:CHONGQING UNIV
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