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    • 2. 发明申请
    • System and method for decoupled precomputation prefetching
    • 解耦预先计算预取的系统和方法
    • US20070101100A1
    • 2007-05-03
    • US11262171
    • 2005-10-28
    • Hassan Al SukhniJames Holt
    • Hassan Al SukhniJames Holt
    • G06F9/30
    • G06F9/3851G06F9/30181G06F9/325G06F9/3455G06F9/3802G06F9/3808G06F9/381G06F9/383G06F9/3832G06F9/3834G06F9/3842G06F9/3885
    • A program stream is executed at a first processing engine, the program stream including multiple iterations of a first load instruction. An instruction loop is executed at a second processing engine separate from the first processing engine substantially in parallel with an execution of the program stream at the first processing engine for prefetching data from memory to a buffer for one or more iterations of the first load instruction of the program stream. The instruction loop represents a subset of a sequence of instructions between iterations of the first load instruction that affect an address value associated with the first load instruction. A confidence value associated with the instruction loop is modified based on a prefetch performance of one or more iterations of the first load instruction and it is determined whether to terminate execution of the instruction loop based on the confidence value.
    • 在第一处理引擎执行程序流,所述程序流包括第一加载指令的多次迭代。 在与第一处理引擎分开的第二处理引擎上执行指令循环,与第一处理引擎的程序流的执行基本上并行,用于将数据从存储器预取到缓冲器,用于一次或多次迭代第一加载指令 程序流。 指令循环表示影响与第一加载指令相关联的地址值的第一加载指令的迭代之间的指令序列的子集。 基于第一加载指令的一次或多次迭代的预取性能来修改与指令循环相关联的置信度值,并且基于置信度确定是否终止指令循环的执行。
    • 4. 发明授权
    • Time-based synchronous rectification in a power converter
    • 电力转换器中的时基同步整流
    • US07675281B1
    • 2010-03-09
    • US11606462
    • 2006-11-30
    • James HoltJonathan Klein
    • James HoltJonathan Klein
    • G05F1/00
    • H02M3/1588Y02B70/1466
    • In one embodiment, in a power converter system having first and second switches connected in a half-bridge arrangement at a common node from which current flows through an inductor to a regulated output terminal, wherein the regulated output terminal is connectable to a load, wherein the first and second switches are turned on and off in cycles, a method is provided for synchronous rectification. The method includes: initiating a cycle in which the first switch is turned on; developing a timer based on the on-time of the first switch during the cycle; turning off the first switch and turning on the second switch during the cycle; and outputting a control signal to turn off the second switch when either the timer expires or a new cycle is initiated to turn on the first switch, thereby providing synchronous rectification in the power converter system.
    • 在一个实施例中,在具有第一和第二开关的功率转换器系统中,第一和第二开关以半桥布置连接在电流流过电感器到公共节点的公共节点上,其中调节输出端子可连接到负载,其中 第一和第二开关的周期性接通和断开,提供了用于同步整流的方法。 该方法包括:启动第一开关导通的周期; 在周期期间基于第一开关的导通时间开发定时器; 在循环中关闭第一个开关并打开第二个开关; 并且当定时器期满或启动新周期以导通第一开关时输出控制信号以关闭第二开关,从而在功率转换器系统中提供同步整流。