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    • 2. 发明授权
    • Frequency modification techniques that adjust an operating frequency to compensate for aging electronic components
    • 调整工作频率以补偿老化电子元件的频率修改技术
    • US07475320B2
    • 2009-01-06
    • US10643549
    • 2003-08-19
    • Daniel R. KnebelWilliam Robert ReohrLi-Kong Wang
    • Daniel R. KnebelWilliam Robert ReohrLi-Kong Wang
    • G06F11/32G06F11/18
    • G06F11/008
    • A number of performance parameters for the electronic system are determined at a particular age of the electronic system. The performance parameters can be correlated to maximum operating frequency of electronic components of the electronic system for the particular age of the electronic system. Operating frequency of the electronic components is adjusted in accordance with the performance parameters. The performance parameters may be predetermined (such as through reliability and burn-in testing), determined during the life of the electronic system, or some combination of these. Performance parameters can comprise prior operating frequencies, hours of operation, ambient temperature, and supply voltage. Performance parameters can comprise performance statistics determined using age-monitoring circuits, where an aged circuit is compared with a circuit enabled only for comparison. Performance statistics may also be determined though error detection circuits. If an error is detected, the operating frequency can be reduced.
    • 在电子系统的特定年龄确定电子系统的许多性能参数。 性能参数可以与电子系统的特定年龄的电子系统的电子部件的最大工作频率相关联。 电子元件的工作频率根据性能参数进行调整。 性能参数可以是预定的(例如通过可靠性和老化测试),在电子系统的寿命期间确定,或者这些的一些组合。 性能参数可以包括以前的工作频率,工作时间,环境温度和电源电压。 性能参数可以包括使用年龄监测电路确定的性能统计,其中老化电路与仅用于比较的电路进行比较。 也可以通过错误检测电路来确定性能统计。 如果检测到错误,则可以减少工作频率。
    • 3. 发明授权
    • System and method for sequential testing of high speed serial link core
    • 高速串行连接核心序列测试系统及方法
    • US07191371B2
    • 2007-03-13
    • US10118751
    • 2002-04-09
    • Louis L. HsuLi-Kong Wang
    • Louis L. HsuLi-Kong Wang
    • G01R31/28
    • H04L1/243
    • A testing circuit for testing a series of at least three alternating transmitter and receiver links. The testing circuit including a built-in-self-test (BIST.) macro for generating test data and transmitting the test data to a first link of the series of transmitter and receiver links, and for receiving processed test data from a last link of the series of transmitter receiver links; and at least one test transmission line for transmitting test data received by a link of the series of transmitter and receiver links to a next link of the series of transmitter and receiver links, wherein the at least one test transmission line connects the at least three transmitter and receiver links. A method for testing a series of links having at least three alternating transmitter and receiver links of a plurality of transmitter and receiver links in a SerDes core including generating at least one test data signal; transmitting the at least one test data signal sequentially through the transmitter and receiver links of the series of links; receiving the at least one test data signal from a last link of the series of transmitter and receiver links; and checking the at least one test data signal received.
    • 用于测试一系列至少三个交替发射机和接收机链路的测试电路。 所述测试电路包括用于产生测试数据并将所述测试数据发送到所述一系列发射机和接收机链路的第一链路的内置自测试(BIST)宏,以及从所述一系列发射机和接收机链路的第一链路接收经处理的测试数据 一系列发射机接收器链路; 以及至少一个测试传输线,用于将由所述一系列发射机和接收机链路的链路接收的测试数据发射到所述一系列发射机和接收机链路中的下一个链路,其中所述至少一个测试传输线路将所述至少三个发射机 和接收器链接。 一种用于测试一系列链路的方法,所述链路具有至少三个在SerDes核心中的多个发射机和接收机链路的交替发射机和接收机链路,包括生成至少一个测试数据信号; 通过所述一系列链路的所述发射机和接收机链路顺序地传送所述至少一个测试数据信号; 从所述一系列发射机和接收机链路的最后一个链路接收所述至少一个测试数据信号; 以及检查所接收的至少一个测试数据信号。