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    • 6. 发明授权
    • High level automatic core configuration
    • 高级自动核心配置
    • US06425109B1
    • 2002-07-23
    • US09360384
    • 1999-07-23
    • Charles N. ChoukalosAlvar Antonio DeanScott Alan TetreaultSebastian Theodore Ventrone
    • Charles N. ChoukalosAlvar Antonio DeanScott Alan TetreaultSebastian Theodore Ventrone
    • G06F1750
    • G06F17/5045
    • A system and method for interconnecting a plurality of cores into a single functional core. The method involves creating for each core a pin configuration structure based on a set of configuration rules. When the cores to be interconnected are selected, the pin configuration structure is accessed by the configurator program tool of the present invention. The configurator program tool then connects the cores together using the pin configuration structure and configuration rules for the selected cores. The configurator program tool generates an error-free high level model of the interconnected cores. The configurator program tool allows configuration flexibility and is general enough to handle most configuration scenarios. The tool is also easy to code, extensible, and can be applied to existing core designs with no modification of the cores themselves.
    • 一种用于将多个核心互连成单个功能核心的系统和方法。 该方法包括基于一组配置规则为每个核心创建引脚配置结构。 当选择要互连的芯时,通过本发明的配置程序工具访问引脚配置结构。 然后,配置程序工具使用所选核心的引脚配置结构和配置规则将内核连接在一起。 配置程序工具生成互连核心的无错误高级模型。 配置程序工具允许配置灵活性,并且足以处理大多数配置场景。 该工具也易于编码,可扩展,并且可以应用于现有的核心设计,而不改变内核本身。
    • 7. 发明授权
    • True/complement output bus for reduced simulataneous switching noise
    • 用于减少模拟开关噪声的真/补输出总线
    • US5874833A
    • 1999-02-23
    • US794041
    • 1997-02-03
    • Patrick Edward PerrySebastian Theodore Ventrone
    • Patrick Edward PerrySebastian Theodore Ventrone
    • H03K19/003H03K19/0175
    • H03K19/00346
    • A true/complement integrated circuit device is disclosed for reducing an amount of simultaneous switching on a bus between a current state and a next state. The device includes a current state register connected to the bus for outputting the current state onto the bus during a first clock cycle. A next state register is provided for containing the next state, wherein the next state is a pending state of the bus intended for a next clock cycle. A comparison circuit compares a current state value in the current state register with a next state value in the next state register on a bit-by-bit basis to determine if the current state value and the next state value are of a same polarity or of an opposite polarity. A circuit is provided for determining a ratio of switching signals from an output of the bit-by-bit comparisons by the comparison circuit. The ratio determining circuit further generates a true/complement (T/C) signal having a first state if it is determined that more than a prescribed percentage of bits are in transition, the T/C signal having a second state otherwise. Lastly, a circuit is provided for complementing the bits of the next state register in response to the T/C signal being in the first state, and not complementing the bits of the next state register in response to the T/C signal being in the second state, prior to being transferred into the current state register and output onto the bus during the next clock cycle.
    • 公开了一种真/补体集成电路装置,用于减少在当前状态和下一状态之间的总线上的同时开关量。 该装置包括连接到总线的当前状态寄存器,用于在第一时钟周期期间将当前状态输出到总线上。 提供下一个状态寄存器用于包含下一个状态,其中下一个状态是下一个时钟周期的总线的待处理状态。 比较电路将当前状态寄存器中的当前状态值与下一状态寄存器中的下一状态值逐位进行比较,以确定当前状态值和下一状态值是否具有相同的极性,或者 相反的极性。 提供了一种电路,用于确定比较电路中逐位比较输出的开关信号的比例。 比例确定电路进一步产生具有第一状态的真/补(T / C)信号,如果确定多于一定比例的位正在转换,否则T / C信号具有第二状态。 最后,提供一个电路来补偿下一个状态寄存器的位,以响应于T / C信号处于第一状态,并且不响应于T / C信号位于下一个状态寄存器的位 第二状态,在被转移到当前状态寄存器之前,并且在下一个时钟周期内输出到总线上。
    • 9. 发明授权
    • Method and system for optimizing code using an optimizing coprocessor
    • 使用优化协处理器优化代码的方法和系统
    • US06820254B2
    • 2004-11-16
    • US09681327
    • 2001-03-19
    • Jack Robert SmithSebastian Theodore Ventrone
    • Jack Robert SmithSebastian Theodore Ventrone
    • G06F945
    • G06F8/443
    • A data processing system includes a central processing unit (CPU) in communication with a system memory. Within the system memory, there is stored legacy code that does not utilize the full features of the CPU. The data processing system also includes a code-optimizing coprocessor in communication with the CPU and the system memory. Control logic within the code-optimizing coprocessor causes the code-optimizing coprocessor to generate optimized code from the legacy code at the same time the CPU executes the legacy code, such that the optimized code is tailored according to the CPU. After the code-optimizing coprocessor has generated at least some optimized code, the code-optimizing coprocessor causes the CPU to automatically utilize at least some optimized code in lieu of at least some of the legacy code.
    • 数据处理系统包括与系统存储器通信的中央处理单元(CPU)。 在系统内存中,存储了不利用CPU全部功能的旧版代码。 数据处理系统还包括与CPU和系统存储器通信的代码优化协处理器。 代码优化协处理器内的控制逻辑使得代码优化协处理器在CPU执行遗留代码的同时从旧代码生成优化的代码,使得优化的代码根据CPU进行调整。 在代码优化协处理器已经生成了至少一些优化的代码之后,代码优化协处理器使CPU自动利用至少一些优化的代码来代替至少一些遗留代码。
    • 10. 发明申请
    • DESIGN STRUCTURES INCLUDING CIRCUITS FOR NOISE REDUCTION IN DIGITAL SYSTEMS
    • 设计结构包括数字系统中减少噪声的电路
    • US20090138676A1
    • 2009-05-28
    • US11946096
    • 2007-11-28
    • Nancy H. PrattSebastian Theodore Ventrone
    • Nancy H. PrattSebastian Theodore Ventrone
    • G06F15/76G06F9/30
    • G06F1/06G06F1/08G06F9/3869
    • A design structure including a digital system. The digital system includes (a) a first logic circuit and a second logic circuit, (b) a first register, (c) a second register, (d) a third register, (e) a clock generator circuit, and (f) a controller circuit. The first logic circuit is capable of obtaining first data and sending second data. The second logic circuit is capable of obtaining the second data and sending third data. The clock generator circuit is capable of asserting (i) a first register clock signal at a first time point, (ii) a second register clock signal at a second time point, and (iii) a third register clock signal at a third time point. The controller circuit is capable of (i) determining a fourth time point, (ii) determining a fifth time point, (iii) controlling the clock generator circuit to assert the second register clock signal.
    • 包括数字系统的设计结构。 数字系统包括(a)第一逻辑电路和第二逻辑电路,(b)第一寄存器,(c)第二寄存器,(d)第三寄存器,(e)时钟发生器电路,以及(f) 一个控制器电路。 第一逻辑电路能够获得第一数据并发送第二数据。 第二逻辑电路能够获得第二数据并发送第三数据。 时钟发生器电路能够在第一时间点断言(i)第一寄存器时钟信号,(ii)在第二时间点的第二寄存器时钟信号,以及(iii)第三时间点的第三寄存器时钟信号 。 控制器电路能够(i)确定第四时间点,(ii)确定第五时间点,(iii)控制时钟发生器电路以断言第二寄存器时钟信号。