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    • 1. 发明授权
    • Mixed mode verifier
    • 混合模式验证器
    • US07360187B2
    • 2008-04-15
    • US11242599
    • 2005-09-30
    • Kevin D. JonesThomas J. ShefflerKathryn M. MossawirQiang HongPaul WongJing Jiang
    • Kevin D. JonesThomas J. ShefflerKathryn M. MossawirQiang HongPaul WongJing Jiang
    • G06F17/50
    • G06F17/504
    • A method and system for formally verifying designs having elements from more than a single design domain is described. An example system allows formal verification of a design containing mixed analog and digital subparts. The system may use different proof engines to solve an appropriate sub-partition of the entire design, and may provide a framework for translating between the different domains to create a unified result. For example, a digital proof engine may be used for a digital only subpart, while an analog proof engine may be used for an analog only subpart. The system may use the partitioning results to determine translators between the various domains, and an order in which the proof engines are applied.
    • 描述了用于正式验证来自多于单个设计域的元件的设计的方法和系统。 示例系统允许对包含混合模拟和数字子部件的设计进行形式验证。 系统可以使用不同的证明引擎来解决整个设计的适当子分区,并且可以提供用于在不同域之间进行翻译以创建统一结果的框架。 例如,数字证明引擎可以用于仅数字的子部件,而模拟证明引擎可以用于仅模拟子部件。 系统可以使用分区结果来确定各个域之间的翻译器以及应用证明引擎的顺序。
    • 4. 发明授权
    • Method for using an equivalence checker to reduce verification effort in a system having analog blocks
    • 使用等价检查器来减少具有模拟块的系统中的验证工作的方法
    • US08117576B2
    • 2012-02-14
    • US12397298
    • 2009-03-03
    • Kathryn M. MossawirKevin D. Jones
    • Kathryn M. MossawirKevin D. Jones
    • G06F17/50
    • G06F17/504
    • A computer-implemented method of performing an equivalence check on a mixed-signal circuit is performed on a server system, and includes responding to a verification request. In the method, the following operations are performed. A static analysis is performed on a first netlist, and a synthesizable section and non-synthesizable section of the first netlist are identified. A functional equivalence is determined between the non-synthesizable section of the first netlist and a corresponding non-synthesizable section of a second netlist, and a logical equivalence is determined between the synthesizable section of the first netlist and a corresponding synthesizable section of a second netlist. An equivalence result is provided based on the determined functional equivalence and the determined logical equivalence.
    • 在服务器系统上执行对混合信号电路进行等价性检查的计算机实现的方法,并且包括响应于验证请求。 在该方法中,执行以下操作。 在第一网表上执行静态分析,并且识别第一网表的可合成部分和不可合成部分。 在第一网表的不可合成部分和第二网表的对应不可合成部分之间确定功能等价,并且在第一网表的可合成部分和第二网表的相应可合成部分之间确定逻辑等价 。 基于确定的功能等同性和确定的逻辑等价性提供等效结果。
    • 5. 发明申请
    • Method for Using an Equivalence Checker to Reduce Verification Effort in a System Having Analog Blocks
    • 使用等价检查器减少具有模拟块的系统中的验证努力的方法
    • US20090228849A1
    • 2009-09-10
    • US12397298
    • 2009-03-03
    • Kathryn M. MossawirKevin D. Jones
    • Kathryn M. MossawirKevin D. Jones
    • G06F17/50
    • G06F17/504
    • A computer-implemented method of performing an equivalence check on a mixed-signal circuit is performed on a server system, and includes responding to a verification request. In the method, the following operations are performed. A static analysis is performed on a first netlist, and a synthesizable section and non-synthesizable section of the first netlist are identified. A functional equivalence is determined between the non-synthesizable section of the first netlist and a corresponding non-synthesizable section of a second netlist, and a logical equivalence is determined between the synthesizable section of the first netlist and a corresponding synthesizable section of a second netlist. An equivalence result is provided based on the determined functional equivalence and the determined logical equivalence.
    • 在服务器系统上执行对混合信号电路进行等价性检查的计算机实现的方法,并且包括响应于验证请求。 在该方法中,执行以下操作。 在第一网表上执行静态分析,并且识别第一网表的可合成部分和不可合成部分。 在第一网表的不可合成部分和第二网表的对应不可合成部分之间确定功能等价,并且在第一网表的可合成部分和第二网表的相应可合成部分之间确定逻辑等价 。 基于确定的功能等同性和确定的逻辑等价性提供等效结果。
    • 6. 发明授权
    • Method to analyze an analog circuit design with a verification program
    • 用验证程序分析模拟电路设计的方法
    • US07643979B2
    • 2010-01-05
    • US11334063
    • 2006-01-17
    • Qiang HongKevin D. JonesPaul Wong
    • Qiang HongKevin D. JonesPaul Wong
    • G06F17/50G01R31/28
    • G06F17/5036
    • Data structures and algorithms are provided to automatically generate an analog stimulus to apply to a simulation of the analog DUT. A constraint solver is provided to determine suitable values to use in the stimulus generation. The suitable values are random values within a range of allowed values. For example, a number of different stimuli are generated for successive application to the analog DUT, each with a different magnitude within a range of allowed magnitudes. Data structures and algorithms are provided to monitor analog electrical properties at nodes of the analog DUT. Data structures and algorithms are provided to define constraints on the analog electrical properties and determine whether the constraints were violated. Data structures and algorithms are provided to define simulation coverage conditions in the analog domain and determine whether the defined analog domain coverage conditions have been satisfied.
    • 提供数据结构和算法以自动生成模拟刺激以应用于模拟DUT的仿真。 提供约束求解器以确定在刺激生成中使用的合适值。 合适的值是允许值范围内的随机值。 例如,产生用于连续施加到模拟DUT的多个不同的刺激,每个激励在允许的幅度范围内具有不同的幅度。 提供数据结构和算法来监视模拟DUT的节点处的模拟电气特性。 提供数据结构和算法来定义对模拟电气特性的限制,并确定约束是否被违反。 提供数据结构和算法来定义模拟域中的模拟覆盖条件,并确定是否满足了定义的模拟域覆盖条件。
    • 7. 发明申请
    • Vertebrae Support Device and Method
    • 脊椎支撑装置及方法
    • US20130226238A1
    • 2013-08-29
    • US13853826
    • 2013-03-29
    • Kevin D. Jones
    • Kevin D. Jones
    • A61F5/01
    • A61F5/01A47C20/027
    • A vertebrae support device and method. An embodiment of a method of using the vertebrae support device by a person includes disposing a resting surface of a vertebrae support device on a substantially flat horizontal surface, and lying on the vertebrae support device such that muscles on the left side of a vertebrae column of the person are supported on a first rail of the vertebrae support device, the muscles on the right side of the vertebrae column of the person are supported on a second rail of the vertebrae support device, and the thoracic and lumbar portions of the vertebrae column of the person lying on the vertebrae support device are disposed unsupported in a trough between the first rail and the second rail.
    • 椎骨支撑装置及方法。 由人使用椎骨支撑装置的方法的一个实施例包括将椎骨支撑装置的搁置表面设置在基本上平坦的水平表面上,并且躺在椎骨支撑装置上,使得在椎骨支撑装置左侧的肌肉 该人被支撑在椎骨支撑装置的第一轨道上,人的椎骨柱右侧的肌肉被支撑在椎骨支撑装置的第二轨道上,并且椎骨柱的胸部和腰部 躺在椎骨支撑装置上的人被设置为不支撑在第一轨道和第二轨道之间的槽中。
    • 8. 发明申请
    • Vertebrae Support Device and Method
    • 脊椎支撑装置及方法
    • US20120037163A1
    • 2012-02-16
    • US12853734
    • 2010-08-10
    • Kevin D. Jones
    • Kevin D. Jones
    • A61G15/00
    • A61F5/01A47C20/027
    • A vertebrae support device. The vertebrae support device includes a base made of a yielding material and having resting surface, a rail side, a first lateral side a second lateral side, a head end, and a foot end. A first rail extends from the rail side of the base from the resting surface of the base and adjacent the first lateral side and having a rounded surface opposite the base. A second rail extends from the rail side of the base from the resting surface of the base and adjacent the second lateral side and having a rounded surface opposite the base, a trough depending between the first and second rails and toward the base at least one inch. A headrest is formed on the head end of the base.
    • 椎骨支撑装置。 椎骨支撑装置包括由屈服材料制成并具有搁置表面,轨道侧,第一横向侧,第二横向侧,头端和脚端的基部。 第一轨道从基座的轨道侧从基座的搁置表面延伸并且邻近第一侧面并且具有与基座相对的圆形表面。 第二轨道从基座的轨道侧从基座的搁置表面延伸并且邻近第二侧面并且具有与基座相对的圆形表面,在第一和第二轨道之间延伸的槽,并且朝向底座至少一英寸 。 在基座的头端形成头枕。