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    • 2. 发明授权
    • Structured logic design method using figures of merit and a flowchart
methodology
    • 使用品质因数和流程图方法的结构化逻辑设计方法
    • US5258919A
    • 1993-11-02
    • US546376
    • 1990-06-28
    • Roy K. YamanouchiD. Kevin CoveySandra G. Schneider
    • Roy K. YamanouchiD. Kevin CoveySandra G. Schneider
    • G06F17/50H01L27/02G06F15/60
    • H01L27/0207G06F17/5045
    • The present invention provides a structured integrated circuit design methodology. The methodology is based on describing a two-phase logic function using a high level behavioral description flow chart, properly sizing devices to be used in the circuit for speed and reducing trial and error in circuit layout implementation using novel chip planning techniques. The methodology begins with the definition of signal types based on the circuit function that creates a particular signal and the type of input signal that feeds the circuit function. A rigid set of rules is then established for use of the signal types. Next the technical specification of the two-phase logic function is defined and utilized to create a behavioral flow chart using defined symbols. An associated database of corresponding Boolean equations is then created that defines the parameters of the various elements of the flow chart. The Boolean equations are then converted to a logic diagram either by coded state assignment or by direct implementation. The resulting logic diagram is then analyzed for speed utilizing a Figures of Merit technique for establishing device sizes. The resulting circuit design may then be carried through to layout utilizing conventional computer aided design (CAD) tools.
    • 本发明提供一种结构化的集成电路设计方法。 该方法基于描述使用高级行为描述流程图的两相逻辑功能,适当地调整在电路中用于速度的设备,并且使用新颖的芯片规划技术减少电路布局实现中的试错误。 该方法从基于产生特定信号的电路功能和馈送电路功能的输入信号的类型的信号类型的定义开始。 然后建立一组刚性的规则来使用信号类型。 接下来,定义并利用两相逻辑功能的技术规范来创建使用定义符号的行为流程图。 然后创建相应布尔方程的相关数据库,其定义流程图的各种元素的参数。 然后通过编码状态分配或通过直接实现将布尔方程转换为逻辑图。 然后使用优点技术来建立装置尺寸来分析所得逻辑图的速度。 所得到的电路设计然后可以通过传统的计算机辅助设计(CAD)工具进行布局。
    • 3. 发明申请
    • Limited use ECG electrode set
    • 有限使用ECG电极组
    • US20060142831A1
    • 2006-06-29
    • US11024138
    • 2004-12-28
    • Richard NovaKevin Covey
    • Richard NovaKevin Covey
    • A61N1/04
    • A61B5/0408A61B5/04286A61B2562/242A61N1/046
    • Methods and apparatus are provided for a limited use ECG electrode set. The electrode set includes a plurality of limited use electrodes capable of being affixed to a human patient so as to receive patient information from the patient such as ECG data. Cables are also affixed to each electrode, and each cable is capable of transmitting patient information therethrough. A connector is affixed to each cable, and the connector is likewise capable of transmitting patient information. A sealing wedge may be molded around each cable forming a seal therebetween. The electrode set may be disposed at least partially in a packaging interior region, and the packaging may be hermetically sealed. Further the packaging may be sealed around the sealing wedge in forming the hermetic seal. The limited use electrode set may be opened and deployed from its packaging in situations that call for receiving patient data such as ECG information.
    • 为有限使用的ECG电极组提供了方法和装置。 电极组包括能够固定在人类患者身上的多个有限使用电极,从患者接收患者信息,例如ECG数据。 电缆也固定到每个电极,并且每根电缆能够通过其传送患者信息。 连接器固定到每个电缆,并且连接器同样能够传送患者信息。 可以围绕每个电缆模制密封楔,以在它们之间形成密封。 电极组可以至少部分地设置在包装内部区域中,并且包装可以被气密密封。 此外,在形成气密密封件时,包装可以围绕密封楔密封。 在需要接收诸如ECG信息的患者数据的情况下,有限使用电极组可以从其包装打开和展开。
    • 5. 发明授权
    • Signed overflow sticky bits
    • 签名溢出粘性位
    • US5319588A
    • 1994-06-07
    • US987617
    • 1992-12-09
    • Ralph W. HainesGary D. PhillipsD. Kevin CoveyThomas W. S. Thomson
    • Ralph W. HainesGary D. PhillipsD. Kevin CoveyThomas W. S. Thomson
    • G06F7/533G06F7/52G06F7/53G06F7/544G06F9/38G06F12/08G06F7/38
    • G06F7/5338G06F7/5443G06F9/3877G06F2207/3876G06F7/4991G06F7/49921
    • An arithmetic unit for multiplying and accumulating signed binary data and indicating an occurrence of a signed arithmetic overflow includes a multiplier-accumulator and an overflow flag register. The multiplier-accumulator receives and selectively multiples and accumulates signed binary data, and provides output data representing the multiplied and accumulated data and a sign bit representing its polarity, i.e. positive or negative. The flag register provides two "sticky" flag bits for indicating whether a signed arithmetic overflow (positive or negative) of the multiplied and accumulated data has occurred. The flag bits are "sticky" in that once a flag has been set, it cannot be reset by another arithmetic overflow condition. Instead, it must be specifically reset. The sign bit is used to selectively set one of the two sticky flag bits to a true state to indicate the direction (positive or negative) of the first arithmetic overflow. The sticky flag bits have mutually exclusive true states in that once a flag bit has been set true, the other flag bit cannot be set true until both flag bits have been specifically reset.
    • 用于乘法和累加有符号二进制数据并指示有符号算术溢出发生的算术单元包括乘法器累加器和溢出标志寄存器。 乘法器 - 累加器接收和选择性地倍数并累加有符号的二进制数据,并且提供表示乘法和累积数据的输出数据和表示其极性的符号位,即正或负。 标志寄存器提供两个“粘性”标志位,用于指示已经发生乘法和累加数据的带符号算术溢出(正或负)。 标志位是“粘性”,因为一旦设置了一个标志,它就不能被另一个算术溢出条件复位。 相反,它必须特别重置。 符号位用于选择性地将两个粘性标志位中的一个设置为真实状态,以指示第一个算术溢出的方向(正或负)。 粘标志位具有相互排除的真实状态,因为一旦标志位被设置为真,则在两个标志位被特别复位之前,另一个标志位不能被设置为真。