公开(公告)号：JP2003223100A

公开(公告)日：2003-08-08

申请号：JP2002017959

申请日：2002-01-28

Applicant: IBM

Inventor： MORIOKA SUMIO ,  SATO AKASHI ,  CHO KO

IPC: G06F17/50 ,  G09C1/00 ,  H03K19/0952 ,  H03K19/20 ,  H04L9/06

Abstract: PROBLEM TO BE SOLVED: To provide a technique for realizing a high speed combinational circuit including an S-Box and for simultaneously generating an RO-BDD prescribing the circuit structure of the combinational circuit. SOLUTION: The combinational circuit is provided with the number of independent selector groups 100 to 170 corresponding to the number of output bits that individually generates the output bits and a driver chain that supplies primary input to the respective selector groups 100 to 170, the respective selector groups 100 to 170 are provided with a plurality of selectors 101 connected by forming the number of stages equal to or less than the number of bits of the primary input and selected signals of the selectors 101 at the respective stages are driven by one primary input. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2011118841A

公开(公告)日：2011-06-16

申请号：JP2009278002

申请日：2009-12-07

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： TAKAHASHI HITOMI ,  CHO KO ,  KOMATSU HIDEAKI

IPC: G05B17/02

CPC classification number: G06F17/5009 ,  G05B13/04 ,  G05B17/00 ,  G05B19/406 ,  G05B19/4061 ,  G05B19/4063 ,  G05B23/0205 ,  G05B23/0243 ,  G06F1/03 ,  G06F8/34 ,  G06F11/3668 ,  G06F17/10

Abstract: PROBLEM TO BE SOLVED: To provide a technique for efficiently testing stability by avoiding a combinatorial explosion regardless of the number and quality of nonlinear blocks when switched linearization is utilized for a simulation system including a plurality of nonlinear blocks to form a system having a plurality of states.
SOLUTION: When the states are changed according to an operation scenario and the following state is not attained yet, the simulation system places a software guard 1202 showing that the state is not attained. In response to encountering the guard, whether the state is safe or not is tested.When the state is safe, the simulation system deletes the guard and places another guard at the next state. On the other hand, when the state is unstable, the simulation system replaces the guard by an unstable guard 1204. Then, it records an appearance state of a transition, and suitably ends the simulation.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于通过避免组合爆炸来有效测试稳定性的技术，而不管非线性块的数量和质量如何，当切换​​线性化用于包括多个非线性块的模拟系统以形成具有 多个状态。 解决方案：当根据操作场景改变状态并且还没有获得以下状态时，仿真系统放置示出未达到状态的软件保护装置1202。 对于遇到守卫，无论国家是否安全，都要进行测试。国家安全的情况下，模拟系统会将守卫删除，并在下一个状态下放置另一个卫兵。 另一方面，当状态不稳定时，模拟系统用不稳定的保护装置1204代替防护装置。然后，记录转移的外观状态，适当地结束模拟。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011054129A

公开(公告)日：2011-03-17

申请号：JP2009205077

申请日：2009-09-04

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： CHO KO ,  TAKAHASHI NOBUAKI ,  KOMATSU HIDEAKI ,  OSAWA FUMITOMO

IPC: G06F13/28

CPC classification number: G06F13/28

Abstract: PROBLEM TO BE SOLVED: To provide a DMA (direct memory access) transfer technology which is adapted to HILS and can suppress an overhead.
SOLUTION: In this computer system including a data transfer device for transferring data to a peripheral apparatus from a memory of a computer by DMA, a continuous DMA mechanism responds to perform processing and continuously repeatedly gives a data transfer request. In a simulation system for the HILS, data on a result of simulation are arranged in a prescribed area of the memory. In response to the data reading transfer request from the continuous DMA mechanism, the data are transferred to the continuous DMA mechanism from the memory together with data on a generation ID. The continuous DMA mechanism stores the transferred generation ID as a reception ID, and receives the transferred data in response to an effect that the transferred generation ID differs (having updated) from the stored reception ID. The continuous DMA mechanism continuously repeats the data transfer request until it is disabled.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供适用于HILS并可以抑制开销的DMA（直接存储器访问）传送技术。 解决方案：在该计算机系统中，包括用于通过DMA从计算机的存储器将数据传送到外围设备的数据传送装置，连续的DMA机制响应于执行处理并连续重复地提供数据传送请求。 在用于HILS的仿真系统中，将模拟结果的数据布置在存储器的规定区域中。 响应于来自连续DMA机制的数据读取传送请求，数据从存储器连同数据一起传送到连续的DMA机制。 连续DMA机制将传送的生成ID存储为接收ID，并且响应于所转移的生成ID与存储的接收ID不同（已更新）的效果接收传送的数据。 持续的DMA机制连续重复数据传输请求，直到被禁用为止。 版权所有（C）2011，JPO＆INPIT