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1. 发明授权

US07640536B1 Variable graph minimization for improved model-checking performance 有权
标题翻译：可变图最小化，以提高模型检查性能
公开(公告)号：US07640536B1
公开(公告)日：2009-12-29
申请号：US11236053
申请日：2005-09-27
申请人： Michael W. Whalen , Steven P. Miller
发明人： Michael W. Whalen , Steven P. Miller
IPC分类号： G06F9/44 , G06F11/00
CPC分类号： G06F11/3608 , G06F8/433
摘要： A method of verifying properties of a source program includes creating a directed multigraph from the source program. The directed multigraph is then minimized by identifying removable vertices in the multigraph. Based on the minimization of the directed multigraph, the source program is transformed by inlining variables in the source program to produce a transformed program. The transformed program is then model checked using a model checking tool in order to verify properties of the source program.
摘要翻译：验证源程序的属性的方法包括从源程序创建定向多图。然后通过识别多重图中的可移除顶点来最小化定向多重图。基于定向多图的最小化，源程序通过在源程序中内联变量来产生变换程序来进行变换。然后使用模型检查工具对变换的程序进行模型检查，以验证源程序的属性。

2. 发明授权

US07063401B2 Systems and methods for determining printhead in a print position 有权
标题翻译：用于在打印位置确定打印头的系统和方法
公开(公告)号：US07063401B2
公开(公告)日：2006-06-20
申请号：US10874250
申请日：2004-06-24
申请人： Marcia D. Haney , David W. Hanks , Michael W. Whalen , Mark H. Cowan
发明人： Marcia D. Haney , David W. Hanks , Michael W. Whalen , Mark H. Cowan
IPC分类号： B41J29/393 , B41J25/308 , G01D15/10
CPC分类号： B41J2/16585 , B41J25/316
摘要： A system and method for sensing the positioning the printhead in one or more of a standby position, a wipe position, and a printing position uses electrical signals from a drive motor as an indicator of whether the printhead has properly moved to a desired position. As the printhead is tilted to a print position, a first position electrical signal is detected by sampling a resistance on the torque motor at a first time. A second position electrical signal is determined by sampling another resistance on the motor at a second time. A slope is calculated between the first position sample and the second position sample. The calculated slope is analyzed to determine whether the printhead is operating properly. Thus, the need for standalone sensors to determine the positioning of the printhead is eliminated.
摘要翻译：用于感测将打印头定位在待机位置，擦拭位置和打印位置中的一个或多个中的系统和方法使用来自驱动马达的电信号作为打印头是否已经适当地移动到期望位置的指示。当打印头倾斜到打印位置时，通过在第一时间对扭矩马达上的电阻进行采样来检测第一位置电信号。第二位置电信号通过在第二时间对电机上的另一个电阻进行采样来确定。在第一位置样品和第二位置样品之间计算斜率。分析计算出的斜率以确定打印头是否正常运行。因此，消除了用于确定打印头的定位的独立传感器的需要。

3. 发明授权

US08726241B1 Method and system for the development of high-assurance computing elements 有权
标题翻译：开发高保证计算元素的方法和系统
公开(公告)号：US08726241B1
公开(公告)日：2014-05-13
申请号：US11810571
申请日：2007-06-06
申请人： Philippe M. T. Limondin , T. Douglas Hiratzka , John J. Mettenburg , David F. Leskowicz , Michael W. Whalen
发明人： Philippe M. T. Limondin , T. Douglas Hiratzka , John J. Mettenburg , David F. Leskowicz , Michael W. Whalen
IPC分类号： G06F9/44
CPC分类号： G06F9/44 , G06F17/5022 , G06F17/504 , G06F17/5045
摘要： The present invention is a methodology for developing high-assurance computing elements. The method may comprise one or more of the following steps: (a) receiving a plurality of requirements detailing intended behavior of a high-assurance computing elements; (b) creating a model based on the requirements; (c) generating higher order language (HOL) code based on the model; (d) simulating the behavior of the computing elements from the HOL code; (e) generating test cases based on the model; (f) translating the model into a verification tool-specific format; and (g) formally verifying the model using a verification tool.
摘要翻译：本发明是开发高保证计算元件的方法。该方法可以包括以下步骤中的一个或多个：（a）接收详细说明高保证计算元件的预期行为的多个要求; （b）根据要求制定模型; （c）基于模型生成高阶语言（HOL）代码; （d）从HOL代码模拟计算元件的行为; （e）根据模型生成测试用例; （f）将模型转换为具体的验证工具格式; 和（g）使用验证工具正式验证模型。

4. 发明授权

US07059702B2 Systems and methods for determining printhead in a standby position 有权
标题翻译：用于确定待机位置的打印头的系统和方法
公开(公告)号：US07059702B2
公开(公告)日：2006-06-13
申请号：US10875587
申请日：2004-06-25
申请人： Marcia D. Haney , David W. Hanks , Michael W. Whalen , Mark H. Cowan
发明人： Marcia D. Haney , David W. Hanks , Michael W. Whalen , Mark H. Cowan
IPC分类号： B41J29/393 , B41J25/308 , G01D15/10
CPC分类号： B41J2/16585 , B41J25/316
摘要： A system and method for determining proper positioning of the printhead as it travels between first and second positions by sampling an electrical resistance signal of a motor during tilting of the printhead, calculating an average of specified samples at a time, and comparing the calculated average to a predetermined threshold to determine whether the printhead is operating properly. Thus, the need for sensors to determine the positioning of the printhead is eliminated.
摘要翻译：一种用于确定当打印头在打印头倾斜期间通过采样电机的电阻信号在第一和第二位置之间行进时的适当定位的系统和方法，一次计算指定样本的平均值，并将计算的平均值与预定阈值以确定打印头是否正常运行。因此，消除了确定打印头定位的传感器的需要。

5. 发明授权

US08041554B1 Method and system for the development of high-assurance microcode 有权
标题翻译：开发高保证微码的方法和系统
公开(公告)号：US08041554B1
公开(公告)日：2011-10-18
申请号：US11810609
申请日：2007-06-06
申请人： Philippe M. T. Limondin , T. Douglas Hiratzka , Michael W. Whalen , David S. Hardin
发明人： Philippe M. T. Limondin , T. Douglas Hiratzka , Michael W. Whalen , David S. Hardin
IPC分类号： G06F9/45
CPC分类号： G06F8/35 , G06F9/44589 , G06F11/3608 , G06F11/3684
摘要： The present invention is a methodology for developing high-assurance microcode. The method may comprise one or more of the following steps: (a) receiving a plurality of requirements detailing intended behavior of microcode (b) creating a model of microcode behavior; (c) generating microcode based on the model; (d) generating test cases based on the model; (e) simulating the behavior of the microcode; (f) translating the model into a verification tool-specific format; and (g) formally verifying the model using a verification tool.
摘要翻译：本发明是开发高保证微码的方法。该方法可以包括以下步骤中的一个或多个：（a）接收详细描述微代码的预期行为的多个要求（b）创建微代码行为的模型; （c）基于模型生成微代码; （d）根据模型生成测试用例; （e）模拟微码的行为; （f）将模型转换为具体的验证工具格式; 和（g）使用验证工具正式验证模型。

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