Apparatus and method for shortening interrupt latency
    1.
    发明专利
    Apparatus and method for shortening interrupt latency 审中-公开
    装置中断休眠的装置和方法

    公开(公告)号:JP2010140239A

    公开(公告)日:2010-06-24

    申请号:JP2008315552

    申请日:2008-12-11

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method that ensure a response within a fixed time by effectively shortening interrupt latency, which is the time from the generation of a request for interrupt handling by a device to the invocation of a handler for interrupt handling.
    SOLUTION: The apparatus includes a general purpose CPU and an interrupt processor for executing an interrupt handling program for executing interrupt handling prioritized over other processing. The interrupt processor includes an interrupt handling execution unit for executing interrupt handling, a memory for storing the interrupt handling program for executing interrupt handling, an interrupt detection part for detecting an execution request requesting the execution of interrupt handling, and an interrupt handling selection part for selecting whether to execute interrupt handling on the general purpose CPU or on the interrupt handling execution unit.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种通过有效缩短中断延迟来确保在固定时间内的响应的装置和方法,这是从生成设备的中断处理请求到调用处理程序的时间 用于中断处理。 解决方案:该装置包括通用CPU和中断处理器,用于执行中断处理程序,用于执行优先于其他处理的中断处理。 中断处理器包括用于执行中断处理的中断处理执行单元,用于存储用于执行中断处理的中断处理程序的存储器,用于检测请求执行中断处理的执行请求的中断检测部分,以及用于执行中断处理选择部分的中断处理选择部分 选择是否在通用CPU或中断处理执行单元上执行中断处理。 版权所有(C)2010,JPO&INPIT

    DATA RECEIVER AND ITS METHOD
    2.
    发明专利

    公开(公告)号:JP2000151440A

    公开(公告)日:2000-05-30

    申请号:JP30794698

    申请日:1998-10-29

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To allow the data receiver to download data of a broadcast program that continuously transmits the same data among different programs broadcast through plural channels. SOLUTION: A GUI section 250 displays electric program guide(EPG) data denoting a broadcast time band of a data broadcast program or the like. When the user selects and reserves a program, a virtual program processing section 224 groups the selected programs into virtual programs whose priority gives effect onto each other. A priority processing section 222 definitely places priority to each reserved program for each virtual program according to the operation by the user. A reception processing section 230 controls a broadcast receiver to download of data of a program with highest priority at each time.

    SYNCHRONIZING METHOD AND DECODER
    4.
    发明专利

    公开(公告)号:JPH11177652A

    公开(公告)日:1999-07-02

    申请号:JP27678997

    申请日:1997-10-09

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To suppress the generation of omission in data at the time of reproduction without stagnating data in a buffer by smoothly synchronizing transfer on the side of a decoder even when the short moving picture experts group(MPEG) 2 transfer stream of commercial or the like is successively transferred in a short time. SOLUTION: An extraction part 1 extracts synchronizing information POR on the side of transmission from the arriving MPEG 2 transfer stream. A voltage controlled oscillator(VCO) 4 generates a reference clock in the case of decoding data. According to the reference clock generated by the VCO 4, a counter 5 sets the synchronizing information STC of the decoder. A comparator 2 finds the difference of synchronizing information PCR and STC and a control value determining part 3 is provided between the comparator 2 and the VCO 4 and determines the control value corresponding to the difference of the synchronizing information STC and PCR. When the difference of the synchronizing information PCR and STC is more than a prescribed limit value, a discrimination part 6 outputs an instruction to the control value determining part 3 so as to start new transfer synchronization with a current reference clock as a reference.

    System and method for controlling switching of task
    5.
    发明专利
    System and method for controlling switching of task 有权
    用于控制任务切换的系统和方法

    公开(公告)号:JP2011134162A

    公开(公告)日:2011-07-07

    申请号:JP2009293912

    申请日:2009-12-25

    CPC classification number: G06F9/461 G06F9/4887

    Abstract: PROBLEM TO BE SOLVED: To guarantee a real-time property in multi-task control and to improve the processing efficiency of a system.
    SOLUTION: The system in which a processor executes processing while switching a plurality of tasks includes: an execution means for executing an instruction of each task while switching the tasks; an identification means for identifying whether an instruction to be executed is a predetermined specific instruction; and a determination means which, when the instruction to be executed is the specific instruction, determines whether the execution means is allowed to execute the specific instruction based on a predetermined condition or to perform task switching processing without executing the specific instruction.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:保证多任务控制中的实时性,提高系统的处理效率。 解决方案:处理器在切换多个任务时执行处理的系统包括:执行装置,用于在切换任务的同时执行每个任务的指令; 识别装置,用于识别要执行的指令是否是预定的特定指令; 以及确定装置,当要执行的指令是特定指令时,确定执行装置是否被允许基于预定条件执行特定指令,或者执行任务切换处理而不执行特定指令。 版权所有(C)2011,JPO&INPIT

    Verification work support system and method therefor
    6.
    发明专利
    Verification work support system and method therefor 有权
    验证工作支持系统及其方法

    公开(公告)号:JP2007172444A

    公开(公告)日:2007-07-05

    申请号:JP2005371566

    申请日:2005-12-26

    Inventor: ASAMOTO KENSHO

    CPC classification number: G06F17/5018

    Abstract: PROBLEM TO BE SOLVED: To provide a verification work support system automatically executing complicated verification work.
    SOLUTION: This system 10 has: an input device 12 for a manager for inputting test case common information 183 common to all test cases and test case difference information 184 different in each the test case; a text editor 16 generating a template file 18 including basic information 183, 184; an input device 14 for a verification personnel for inputting verification personnel individual information 141 and test condition individual information 142; a parameter file automatic generation program 20 adding the individual information 141, 142 to the basic information 183, 184 of the template file 18 to generate a test case information file 222 described with the verification work of each the test case; and a verification work execution program 24 executing the verification work while starting a TOS (Test Operating System) 26 and an HDL (Hardware Description Language) simulator 28 according to the test case information file 222.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供自动执行复杂验证工作的验证工作支持系统。 解决方案:该系统10具有:输入设备12,用于管理器,用于输入在每个测试用例中不同的所有测试用例和测试用例差异信息184共用的测试用例公共信息183; 生成包括基本信息183,184的模板文件18的文本编辑器16; 用于输入验证人员个人信息141和测试条件个人信息142的验证人员的输入设备14; 将个人信息141,142添加到模板文件18的基本信息183,184的参数文件自动生成程序20,生成通过每个测试用例的验证工作来描述的测试用例信息文件222; 以及根据测试用例信息文件222启动TOS(测试操作系统)26和HDL(硬件描述语言)模拟器28的执行验证工作的验证工作执行程序24.(C) JPO&INPIT

    SYSTEM AND METHOD FOR MULTICAST DATA DISTRIBUTION

    公开(公告)号:JP2003143223A

    公开(公告)日:2003-05-16

    申请号:JP2001316747

    申请日:2001-10-15

    Applicant: IBM

    Inventor: ASAMOTO KENSHO

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for multicast data distribution configured to attain application of quick recovery processing to missing of a data block and to receive all data blocks in a short time. SOLUTION: This invention is configured such that when a transmitter 12 distributes program data to a plurality of receivers, the transmitter uses a plurality of transmitter ports and controls them so that the transmitter ports have different temporal position of the data blocks resulting in that missing of the data block in the receivers 14 can early be recovered and all the data blocks can be distributed in a short time. Further, the system is configured to have scalability capable of sufficiently extracting the performance of the receivers 14 each having different reception performance. Moreover, the system can has entirely flexible extendability in future.

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