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    • 11. 发明申请
    • PARALLEL SCAN DISTRIBUTORS AND COLLECTORS AND PROCESS OF TESTING INTEGRATED CIRCUITS
    • 并行扫描分配器和收集器以及测试集成电路的过程
    • US20140245090A1
    • 2014-08-28
    • US14268073
    • 2014-05-02
    • TEXAS INSTRUMENTS INCORPORATED
    • Lee D. Whetsel
    • G01R31/3177
    • G01R31/2851G01R31/31715G01R31/3177G01R31/318536G01R31/318555G01R31/318563G01R31/31919
    • An integrated circuit (70) having parallel scan paths (824-842, 924-942) includes a pair or pairs of scan distributor (800,900) and scan collector (844,944) circuits. The scan paths apply stimulus test data to functional circuits (702) on the integrated circuit and receive response test data from the functional circuits. A scan distributor circuit (800) receives serial test data from a peripheral bond pad (802) and distributes it to each parallel scan path. A scan collector circuit (844) collects test data from the parallel scan paths and applies it to a peripheral bond pad (866). This enables more parallel scan paths of shorter length to connect to the functional circuits. The scan distributor and collector circuits can be respectively connected in series to provide parallel connections to more parallel scan paths. Additionally multiplexer circuits (886,890) can selectively connect pairs of scan distributor and collector circuits together. The scan distributor and collector circuits can be formed in core circuits (704). The core circuits then can be connected to other core circuits and functional circuits with simple connections to the parallel scan circuits through the scan distributor and collector circuits.
    • 具有并行扫描路径(824-842,924-942)的集成电路(70)包括一对或一对扫描分配器(800,900)和扫描收集器(844,944)电路。 扫描路径将激励测试数据应用于集成电路上的功能电路(702),并从功能电路接收响应测试数据。 扫描分配器电路(800)从外围接合焊盘(802)接收串行测试数据,并将其分配到每个并行扫描路径。 扫描收集器电路(844)从并行扫描路径收集测试数据并将其应用于外围接合焊盘(866)。 这使得更长的并行扫描路径能够连接到功能电路。 扫描分配器和集电极电路可以分别串联连接以提供并行连接到更平行的扫描路径。 此外,多路复用器电路(886,890)可以选择性地将成对的扫描分配器和集电极电路连接在一起。 扫描分配器和集电极电路可以形成在核心电路(704)中。 然后,核心电路可以通过扫描分配器和集电极电路与并行扫描电路的简单连接连接到其他核心电路和功能电路。
    • 12. 发明授权
    • Parallel scan paths with three bond pads, distributors and collectors
    • 具有三个焊盘,分配器和收集器的并行扫描路径
    • US08749258B2
    • 2014-06-10
    • US13657115
    • 2012-10-22
    • Texas Instruments Incorporated
    • Lee D. Whetsel
    • G01R31/3187
    • G01R31/2851G01R31/31715G01R31/3177G01R31/318536G01R31/318555G01R31/318563G01R31/31919
    • An integrated circuit (70) having parallel scan paths (824-842, 924-942) includes a pair or pairs of scan distributor (800,900) and scan collector (844,944) circuits. The scan paths apply stimulus test data to functional circuits (702) on the integrated circuit and receive response test data from the functional circuits. A scan distributor circuit (800) receives serial test data from a peripheral bond pad (802) and distributes it to each parallel scan path. A scan collector circuit (844) collects test data from the parallel scan paths and applies it to a peripheral bond pad (866). This enables more parallel scan paths of shorter length to connect to the functional circuits. The scan distributor and collector circuits can be respectively connected in series to provide parallel connections to more parallel scan paths. Additionally multiplexer circuits (886,890) can selectively connect pairs of scan distributor and collector circuits together. The scan distributor and collector circuits can be formed in core circuits (704). The core circuits then can be connected to other core circuits and functional circuits with simple connections to the parallel scan circuits through the scan distributor and collector circuits.
    • 具有并行扫描路径(824-842,924-942)的集成电路(70)包括一对或一对扫描分配器(800,900)和扫描收集器(844,944)电路。 扫描路径将激励测试数据应用于集成电路上的功能电路(702),并从功能电路接收响应测试数据。 扫描分配器电路(800)从外围接合焊盘(802)接收串行测试数据,并将其分配到每个并行扫描路径。 扫描收集器电路(844)从并行扫描路径收集测试数据并将其应用于外围接合焊盘(866)。 这使得更长的并行扫描路径能够连接到功能电路。 扫描分配器和集电极电路可以分别串联连接以提供并行连接到更平行的扫描路径。 此外,多路复用器电路(886,890)可以选择性地将成对的扫描分配器和集电极电路连接在一起。 扫描分配器和集电极电路可以形成在核心电路(704)中。 然后,核心电路可以通过扫描分配器和集电极电路与并行扫描电路的简单连接连接到其他核心电路和功能电路。
    • 14. 发明申请
    • COMMUNICATION SYSTEM, DATA TRANSMITTER, AND DATA RECEIVER CAPABLE OF DETECTING INCORRECT RECEIPT OF DATA
    • 通信系统,数据发送器和数据接收器,能够检测数据不正确的接收
    • US20130243141A1
    • 2013-09-19
    • US13873941
    • 2013-04-30
    • MEGACHIPS CORPORATION
    • Ryuichi MORIIZUMI
    • H04L7/00
    • H04L7/0091G01R31/31715G01R31/3187H04L1/0061H04L2007/045
    • A transmitter cyclic pattern having a pattern length of N bits is generated and converted into an M-bit transmitter parallel data stream, where N≠M. A bit-sequence altered transmitter parallel data stream is generated by performing a transmitter altering process, converted into a serial data and transmitted together with a clock signal. The serial data is received and converted into an M-bit receiver parallel data stream, and a bit-sequence restored parallel data stream is generated by performing a process opposite to the transmitter altering process. A receiver cyclic pattern is generated by using bits in the bit-sequence restored parallel data stream and converted into an M-bit reference parallel data stream, and a bit-sequence altered reference parallel data stream is generated by performing a process same as the transmitter altering process and compared with the received parallel data to test if the data is correctly received.
    • 产生具有N比特的模式长度的发射机循环模式,并将其转换为M比特发射机并行数据流,其中N≤M。 通过执行发射机改变处理,转换成串行数据并与时钟信号一起传输,产生位序列改变的发射机并行数据流。 串行数据被接收并转换成M位接收器并行数据流,并且通过执行与发送器改变处理相反的处理来生成比特序列恢复的并行数据流。 通过使用比特序列恢复的并行数据流中的比特来生成接收机循环模式并将其转换成M比特参考并行数据流,并且通过执行与发射机相同的处理来生成比特序列改变的参考并行数据流 更改流程并与收到的并行数据进行比较,以测试数据是否正确接收。
    • 17. 发明授权
    • Tester, method for testing a device under test and computer program
    • 测试仪,被测设备的测试方法和计算机程序
    • US08401812B2
    • 2013-03-19
    • US11989731
    • 2006-12-22
    • Martin Schmitz
    • Martin Schmitz
    • G01R17/00G01R17/02G01R17/04G01R31/02
    • G01R31/31926G01R31/31715G01R31/31919
    • A tester for testing a device under test has a first channel unit and a second channel unit. The first channel unit has a corresponding first pin connection for a signal from a device under test, a corresponding first test processor adapted to process, at least partially, data obtained from the first pin connection, and a corresponding first memory coupled with the first test processor and adapted to store data provided by the first test processor. The first channel unit is adapted to transfer at least a part of the data obtained from the first pin connection to the second channel unit as transfer data. The second channel unit has a corresponding second test processor adapted to process, at least partly, the transfer data from the first channel unit.
    • 用于测试被测设备的测试仪具有第一通道单元和第二通道单元。 第一通道单元具有用于来自被测器件的信号的对应的第一引脚连接,适用于至少部分地处理从第一引脚连接获得的数据的对应的第一测试处理器以及与第一测试相结合的对应的第一存储器 处理器并且适于存储由第一测试处理器提供的数据。 第一通道单元适于将从第一引脚连接获得的数据的至少一部分传送到第二通道单元作为传送数据。 第二通道单元具有适于至少部分地处理来自第一通道单元的传送数据的对应的第二测试处理器。