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    • 1. 发明授权
    • Single supply pass gate level converter for multiple supply voltage system
    • 单电源通过门电平转换器用于多电源电压系统
    • US07961028B2
    • 2011-06-14
    • US12639188
    • 2009-12-16
    • Jiyeon AnYoung Hwan KimHyoun Soo Park
    • Jiyeon AnYoung Hwan KimHyoun Soo Park
    • H03L5/00
    • H03K19/018571
    • The present invention relates to a level converter used in a multiple supply voltage system that is required to design a low-power and high-performance semiconductor, and more particularly, to a single supply pass gate level converter (SPLC) for a multiple supply voltage system, which has low power consumption, operates at high speed, and uses only a single supply voltage. The SPLC includes an input data providing circuit unit which receives an input signal of a low supply voltage; a data inversion circuit unit which receives input data from the input data providing circuit unit and outputs inversed input data; a feedback circuit unit which is fed back by an output of the data inversion circuit unit; and a data output buffer which inverses an output of the data inversion circuit unit and outputs an inversed signal. The input data providing circuit unit, the data inversion circuit unit, the feedback circuit unit, and the data output buffer are all driven by a high supply voltage such that only a single supply voltage which is the high supply voltage is required.
    • 本发明涉及一种用于设计低功率和高性能半导体所需的多电源电压系统中的电平转换器,更具体地说,涉及一种用于多电源电压的单电源通过门电平转换器(SPLC) 系统功耗低,运行速度快,仅使用单电源电压。 SPLC包括输入数据提供电路单元,其接收低电源电压的输入信号; 数据反转电路单元,其从输入数据提供电路单元接收输入数据并输出反相输入数据; 反馈电路单元,由数据反转电路单元的输出反馈; 以及数据输出缓冲器,其反转数据反转电路单元的输出并输出反相信号。 输入数据提供电路单元,数据反转电路单元,反馈电路单元和数据输出缓冲器均由高电源电压驱动,使得仅需要作为高电源电压的单个电源电压。
    • 2. 发明申请
    • SINGLE SUPPLY PASS GATE LEVEL CONVERTER FOR MULTIPLE SUPPLY VOLTAGE SYSTEM
    • 单电源电压电平转换器多电源电压系统
    • US20100156371A1
    • 2010-06-24
    • US12639188
    • 2009-12-16
    • Jiyeon AnYoung Hwan KimHyoun Soo Park
    • Jiyeon AnYoung Hwan KimHyoun Soo Park
    • G05F1/10
    • H03K19/018571
    • The present invention relates to a level converter used in a multiple supply voltage system that is required to design a low-power and high-performance semiconductor, and more particularly, to a single supply pass gate level converter (SPLC) for a multiple supply voltage system, which has low power consumption, operates at high speed, and uses only a single supply voltage. The SPLC includes an input data providing circuit unit which receives an input signal of a low supply voltage; a data inversion circuit unit which receives input data from the input data providing circuit unit and outputs inversed input data; a feedback circuit unit which is fed back by an output of the data inversion circuit unit; and a data output buffer which inverses an output of the data inversion circuit unit and outputs an inversed signal. The input data providing circuit unit, the data inversion circuit unit, the feedback circuit unit, and the data output buffer are all driven by a high supply voltage such that only a single supply voltage which is the high supply voltage is required.
    • 本发明涉及一种用于设计低功率和高性能半导体所需的多电源电压系统中的电平转换器,更具体地说,涉及一种用于多电源电压的单电源通过门电平转换器(SPLC) 系统功耗低,运行速度快,仅使用单电源电压。 SPLC包括输入数据提供电路单元,其接收低电源电压的输入信号; 数据反转电路单元,其从输入数据提供电路单元接收输入数据并输出反相输入数据; 反馈电路单元,由数据反转电路单元的输出反馈; 以及数据输出缓冲器,其反转数据反转电路单元的输出并输出反相信号。 输入数据提供电路单元,数据反转电路单元,反馈电路单元和数据输出缓冲器均由高电源电压驱动,使得仅需要作为高电源电压的单个电源电压。
    • 3. 发明授权
    • Method of timing criticality calculation for statistical timing optimization of VLSI circuit
    • VLSI电路统计时序优化的定时临界计算方法
    • US08046724B2
    • 2011-10-25
    • US12474547
    • 2009-05-29
    • Hyoun Soo ParkYoung Hwan KimDai Joon HyunWook Kim
    • Hyoun Soo ParkYoung Hwan KimDai Joon HyunWook Kim
    • G06F9/455G06F17/50
    • G06F17/5031G06F17/505
    • Provided is a method of optimizing statistical timing of an integration circuit, the method including applying subtle changes of mean arrival times with respect to each of nodes in a timing graph of an integrated circuit to ADD operations and MAX operations of a block-based statistical static timing analysis (SSTA) method and approximating the corresponding operations; generating Jacobian matrixes between each node by using matrix components including differential coefficients calculated during linear approximation of the operations; calculating changed arrival time values of the circuit by propagating the Jacobian matrixes from a virtual sink node to a virtual source node; and calculating timing yield criticalities, which are variances of timing yield of the circuit due to subtle changes of mean arrival times with respect to each node, based on values obtained by the propagation. Accordingly, timing yield criticality is calculated based on linear approximation of ADD operations and MAX operations of statistical static timing analysis (SSTA), and thus the calculation complexity is linear with respect to the total number of nodes, and critical nodes significantly affecting the timing yield of a circuit can be extracted more accurately.
    • 提供了一种优化集成电路的统计定时的方法,该方法包括对集成电路的定时图中的每个节点应用平均到达时间的微妙变化,以ADD操作和基于块的统计静态的MAX操作 时序分析(SSTA)方法和近似相应的操作; 通过使用包括在操作的线性近似期间计算的微分系数的矩阵分量来生成每个节点之间的雅可比矩阵; 通过将雅可比矩阵从虚拟汇聚节点传播到虚拟源节点来计算电路的改变的到达时间值; 以及基于通过传播获得的值,计算由于平均到达时间相对于每个节点的微妙变化而导致的电路的定时收益率的定时收益率临界。 因此,基于统计静态时序分析(SSTA)的ADD操作和MAX操作的线性近似来计算定时收益关键性,因此计算复杂度相对于总节点数是线性的,关键节点显着影响定时收益 可以更准确地提取电路。
    • 4. 发明申请
    • METHOD OF TIMING CRITICALITY CALCULATION FOR STATISTICAL TIMING OPTIMIZATION OF VLSI CIRCUIT
    • 定时关键度计算方法对VLSI电路的统计时序优化
    • US20100242006A1
    • 2010-09-23
    • US12474547
    • 2009-05-29
    • Hyoun Soo ParkYoung Hwan KimDai Joon HyunWook Kim
    • Hyoun Soo ParkYoung Hwan KimDai Joon HyunWook Kim
    • G06F17/10
    • G06F17/5031G06F17/505
    • Provided is a method of optimizing statistical timing of an integration circuit, the method including applying subtle changes of mean arrival times with respect to each of nodes in a timing graph of an integrated circuit to ADD operations and MAX operations of a block-based statistical static timing analysis (SSTA) method and approximating the corresponding operations; generating Jacobian matrixes between each node by using matrix components including differential coefficients calculated during linear approximation of the operations; calculating changed arrival time values of the circuit by propagating the Jacobian matrixes from a virtual sink node to a virtual source node; and calculating timing yield criticalities, which are variances of timing yield of the circuit due to subtle changes of mean arrival times with respect to each node, based on values obtained by the propagation. Accordingly, timing yield criticality is calculated based on linear approximation of ADD operations and MAX operations of statistical static timing analysis (SSTA), and thus the calculation complexity is linear with respect to the total number of nodes, and critical nodes significantly affecting the timing yield of a circuit can be extracted more accurately.
    • 提供了一种优化积分电路的统计定时的方法,该方法包括对集成电路的定时图中的每个节点应用平均到达时间的微妙变化,以ADD操作和基于块的统计静态的MAX操作 时序分析(SSTA)方法和近似相应的操作; 通过使用包括在操作的线性近似期间计算的微分系数的矩阵分量来生成每个节点之间的雅可比矩阵; 通过将雅可比矩阵从虚拟汇聚节点传播到虚拟源节点来计算电路的改变的到达时间值; 以及基于通过传播获得的值,计算由于平均到达时间相对于每个节点的微妙变化而导致的电路的定时收益率的定时收益率临界。 因此,基于统计静态时序分析(SSTA)的ADD操作和MAX操作的线性近似来计算定时收益关键性,因此计算复杂度相对于总节点数是线性的,关键节点显着影响定时收益 可以更准确地提取电路。
    • 6. 发明授权
    • Method and apparatus for analyzing circuit model by reduction and computer program product for analyzing the circuit model
    • 用于分析电路模型的方法和装置以及用于分析电路模型的计算机程序产品
    • US07987439B2
    • 2011-07-26
    • US12027732
    • 2008-02-07
    • Hong Bo CheYoung Hwan Kim
    • Hong Bo CheYoung Hwan Kim
    • G06F17/50
    • G06F17/5036G06F2217/78
    • Provided are a method and apparatus for analyzing a circuit model by reducing, and a computer program product for analyzing the circuit model. The circuit model at least includes independent current source models, resistance models, and capacitance models. Also, the circuit model forms a resistance capacitance (RC) network with independent current sources. The method includes selecting a node to be removed using resistance information and comparing conductance of a capacitor for a given time step and the total conductance of the node. Further, the method includes removing the selected nodes and generating RC elements and independent current sources using adjacent nodes, which maintain the accuracy of node voltages of a circuit reduced in an accuracy order used for entrywise perturbation of the corresponding circuit equation. Moreover, an efficient method of handling the independent current sources while reducing the circuit is provided.
    • 提供了一种通过减少电路模型分析的方法和装置,以及用于分析电路模型的计算机程序产品。 电路模型至少包括独立的电流源模型,电阻模型和电容模型。 此外,电路模型形成具有独立电流源的电阻电容(RC)网络。 该方法包括使用电阻信息来选择要去除的节点,并且比较给定时间步长的电容器的电导率和节点的总电导率。 此外,该方法包括使用相邻节点去除所选择的节点并产生RC元件和独立电流源,其保持电路的节点电压的精度以用于相应电路方程的入门扰动的精度顺序降低。 此外,提供了一种在减少电路的同时处理独立电流源的有效方法。
    • 9. 发明授权
    • Method and apparatus for radio packet data transmission
    • 用于无线电分组数据传输的方法和装置
    • US06880103B2
    • 2005-04-12
    • US09986415
    • 2001-11-08
    • Young Hwan KimDoo Young MoonKyung Kuk Lee
    • Young Hwan KimDoo Young MoonKyung Kuk Lee
    • H04L12/56H04L1/18G06F11/00
    • H04L1/1887
    • A method and device for communicating data within a packet frame unit between a terminal and a base station are disclosed. The terminal communicates the packet data to the base station. In response, the base station transmits a channel occupying signal, if the data transmission from the terminal is perceived by the base station. The terminal continues the communication of the packet data, while the channel occupying signal is active, determines whether the base station receives the communicated packet data, and ends the process for communicating the packet data if the base station receives the communicated packet data. If the base station fails to receive the communicated packet data, the terminal is informed through the channel occupying signal. Thereafter, the terminal discontinues its communication and then re-attempts to communicate the packet data from the beginning.
    • 公开了一种用于在终端和基站之间的分组帧单元内传送数据的方法和装置。 终端将分组数据传送到基站。 作为响应,如果来自终端的数据传输被基站感知,则基站发送信道占用信号。 终端继续通信分组数据,而信道占用信号是活动的,确定基站是否接收所传送的分组数据,并且如果基站接收到传送的分组数据,则结束传送分组数据的处理。 如果基站未能接收所传送的分组数据,则通过信道占用信号通知终端。 此后,终端终止其通信,然后从一开始重新尝试传送分组数据。