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    • 63. 再颁专利
    • Word search in content addressable memory
    • 在内容可寻址内存中搜索Word
    • USRE42684E1
    • 2011-09-06
    • US11706829
    • 2007-02-14
    • Jason Edward PodaimaSanjay GuptaRandall GibsonRadu Avramescu
    • Jason Edward PodaimaSanjay GuptaRandall GibsonRadu Avramescu
    • G06F12/00
    • G11C15/00
    • A content addressable memory (CAM) is provided that can perform wide word searches. At least one CAM memory core having a plurality of bit pattern entry rows is included in the CAM. In addition, search logic is included that, is capable searching particular rows during each cycle. The search logic is also capable of allowing match line results of unsearched rows to remain unchanged during a cycle. The CAM further includes a serial AND array in communication with the bit pattern entry rows, wherein the serial AND array is capable of computing a match result for wide word entries that span multiple bit pattern entry rows. In one aspect, a match line enable signal is provided to the serial AND array, which facilitates computation of the match result.
    • 提供可以执行宽字搜索的内容可寻址存储器(CAM)。 具有多个位图案输入行的至少一个CAM存储器核心包括在CAM中。 此外,包括搜索逻辑,能够在每个周期中搜索特定的行。 搜索逻辑还能够允许未读行的匹配行结果在一个周期期间保持不变。 CAM还包括与位模式输入行通信的串行AND阵列,其中串行AND阵列能够计算跨多个位模式输入行的宽字条目的匹配结果。 在一个方面,匹配线使能信号被提供给串行AND阵列,这有助于匹配结果的计算。
    • 65. 再颁专利
    • Methods and circuitry for built-in self-testing of content addressable memories
    • 用于内容可寻址存储器的内置自检的方法和电路
    • USRE41992E1
    • 2010-12-07
    • US11514286
    • 2006-08-30
    • Sanjay GuptaRandall Gibson
    • Sanjay GuptaRandall Gibson
    • G01R31/28
    • G06F7/74G11C15/00G11C15/04G11C29/14G11C29/26G11C29/816G11C2029/2602
    • Methods for built-in self-test (BIST) testing and circuitry for testing a content addressable memory (CAM) core are provided. In one example, the BIST circuit includes a search port for enabling searches of the CAM core and a maintenance port for enabling addressing of locations of the CAM core. The maintenance port includes writing logic for writing to locations of the CAM core. The BIST circuit also includes a BIST controller for coordinating BIST testing of the CAM core. The BIST controller is capable of performing a BIST search on the CAM core on every cycle through the search port and performing a BIST write at selected times to the CAM core. Thus, the BIST write is capable of being performed in a same cycle as the BIST search permitting at-speed BIST. The BIST controller, performs BIST testing in a manner that limits the number of rows in the CAM that match at any given cycle, thus allowing a low-power BIST operation. The BIST controller can also be configured to coordinate simultaneous BIST testing of two or more CAM cores.
    • 提供了内置自检(BIST)测试方法和用于测试内容可寻址存储器(CAM)内核的电路。 在一个示例中,BIST电路包括用于使得能够搜索CAM核心的搜索端口和用于实现对CAM核心位置的寻址的维护端口。 维护端口包括用于写入CAM核心位置的写入逻辑。 BIST电路还包括用于协调CAM核心的BIST测试的BIST控制器。 BIST控制器能够通过搜索端口在每个周期上对CAM内核执行BIST搜索,并在选定的时间对CAM内核执行BIST写入。 因此,BIST写入能够在与允许高速BIST的BIST搜索相同的周期中执行。 BIST控制器以限制在任何给定周期匹配的CAM数量的方式执行BIST测试,从而允许低功率BIST操作。 BIST控制器还可以配置为协调两个或多个CAM内核的同步BIST测试。
    • 66. 发明申请
    • Mobile device and method for intelligently communicating data generated thereby over short-range, unlicensed wireless networks and wide area wireless networks
    • 用于智能地传送由短距离,非授权无线网络和广域无线网络产生的数据的移动设备和方法
    • US20090286531A1
    • 2009-11-19
    • US12154009
    • 2008-05-19
    • Yogesh BhattSanjay Gupta
    • Yogesh BhattSanjay Gupta
    • H04Q7/20
    • H04W48/18H04W80/12H04W88/06
    • A mobile device is provisionable for service on a wireless wide area network (WWAN) operated by a licensed network operator and is further operable on at least one shorter-range, unlicensed wireless network (UWN). The mobile device stores applications that generate data when executed, including at least one application that generates data for communication over the WWAN. The mobile device executes a stored application and classifies data generated by the executed application into one of at least two categories based upon a domain of a target network to which the data is to be sent. A first category relates to data requiring communication at least partially over the WWAN and a second category relates to data not requiring communication over the WWAN. The mobile device establishes communication with a target device in the target network over at least the UWN based upon classification of the data generated by the executed application.
    • 移动设备可用于由许可网络运营商操作的无线广域网(WWAN)上的服务,并且可进一步在至少一个较短范围的非授权无线网络(UWN)上操作。 移动设备存储在执行时产生数据的应用,包括至少一个生成用于WWAN通信的数据的应用程序。 移动设备执行存储的应用,并且基于所要发送的数据的目标网络的域将由所执行的应用生成的数据分类为至少两个类别中的一个。 第一类涉及要求至少部分通过WWAN的通信的数据,第二类涉及不需要通过WWAN进行通信的数据。 移动设备基于由所执行的应用生成的数据的分类,至少在UWN上与目标网络中的目标设备建立通信。
    • 67. 发明授权
    • Method and system for optimizing performance in non-relational databases
    • 用于优化非关系数据库性能的方法和系统
    • US07516115B2
    • 2009-04-07
    • US10644295
    • 2003-08-20
    • Sanjay Gupta
    • Sanjay Gupta
    • G06F7/00G06F17/30
    • G06F17/30315Y10S707/99931Y10S707/99932Y10S707/99942
    • A method and system is provided that optimizes performance in non-relational databases. A method includes: sorting and categorizing a first set of columns within a view of the non-relational database; marking a second set of columns within the view as if the second set of columns were already sorted and categorized prior to actual sorting and categorizing of the second set of columns, the second set of columns including all columns exclusive of the first set of columns; sorting and categorizing at least one column of the second set of columns in response to performing a query on the at least one column; maintaining the first set of columns in a portion of cache; and maintaining the at least one column of the second set of columns in another portion of cache. In the method, the second set of columns is visible as collapsed data.
    • 提供了一种优化非关系数据库性能的方法和系统。 一种方法包括:在非关系数据库的视图内对第一组列进行排序和分类; 在视图中标记第二组列,就好像在第二组列的实际排序和分类之前已经对第二组列进行排序和分类,第二组列包括排除第一组列的所有列; 响应于对所述至少一个列执行查询来对第二组列的至少一列进行排序和分类; 将第一组列保存在缓存的一部分中; 以及将所述第二组列的所述至少一列保持在高速缓存的另一部分中。 在该方法中,第二组列可视为折叠数据。
    • 70. 发明授权
    • System and method for test generation for system level verification using parallel algorithms
    • 使用并行算法进行系统级验证的测试生成系统和方法
    • US07260495B2
    • 2007-08-21
    • US11146987
    • 2005-06-06
    • Sanjay GuptaSteven L. RobertsChristopher J. Spandikow
    • Sanjay GuptaSteven L. RobertsChristopher J. Spandikow
    • G06F11/00
    • G06F11/263
    • A system and method for test generation for system level verification using parallel algorithms are provided. The present invention generates test patterns for system level tests by exploiting the scalability of parallel algorithms while allowing for data set coloring and expected result checking. Based on the characteristics of the system being tested an iterative parallel algorithm is selected from a plurality of possible parallel algorithms. The selected parallel algorithm is then separated into separate program statements for execution by a plurality of processors. A serial version of the selected algorithm is executed to generate a set of expected results. The devised parallel version of the selected algorithm is then run to generate a set of test result data which is compared to the set of expected results. If the two sets of data match, it is determined that the system is operating correctly.
    • 提供了一种使用并行算法进行系统级验证的测试生成系统和方法。 本发明通过利用并行算法的可扩展性同时允许数据集着色和预期结果检查来生成用于系统级测试的测试模式。 基于被测系统的特征,从多个可能的并行算法中选择迭代并行算法。 然后将所选择的并行算法分离成单独的程序语句以供多个处理器执行。 执行所选算法的串行版本以产生一组预期结果。 然后运行所选算法的设计的并行版本以生成与一组预期结果进行比较的一组测试结果数据。 如果两组数据匹配,则确定系统正常运行。