公开(公告)号：EP2207308A1

公开(公告)日：2010-07-14

申请号：EP07831164.4

申请日：2007-11-02

Applicant: Fujitsu Microelectronics Limited

Inventor： SHIMAMURA, Akira ,  MITA, Koichi ,  ARAI, Takashi ,  FUJISHIMA, Hideshi ,  ENDO, Akira

IPC: H04L12/28

CPC classification number: H04J3/06 ,  H04L12/40006 ,  H04L12/40032 ,  H04L2012/40241

Abstract: A signal processor related to frame communication which is proceeded based on allocated unit communication periods, in which each communication device recognizes the end of communication of a frame based on a received signal, and then starts a communication action of the next frame, the signal processor has a period detection section which detects that a period is currently used for communication of a frame; a pattern detection section which detects, from the received signal, a first signal pattern by which the end of communication of the frame is recognized; and an output processing section which outputs the received signal to a controller connected thereto, configured to instruct, upon detection of the first signal pattern in the period being currently used for communication of a frame, the controller to halt startup of communication action of the next frame, until the period being currently used for communication of a frame comes to the end, to thereby prevent an event such that frames are transmitted from a plurality of communication devices simultaneously, and to thereby allow the communication action for the next frame to proceed correctly.

Abstract translation: 一种与帧通信相关的信号处理器，其基于分配的单元通信周期进行，其中每个通信设备基于接收到的信号识别帧的通信结束，然后开始下一帧的通信动作，信号处理器 具有周期检测部，其检测当前用于帧的通信的周期; 模式检测部分，从接收到的信号中检测识别帧的通信结束的第一信号模式; 以及输出处理部，其将接收到的信号输出到与其连接的控制器，其被配置为在当前用于帧的通信的时段中检测到第一信号模式时指示，所述控制器停止启动下一个的通信动作 直到当前用于帧的通信的时间段结束为止，从而防止从多个通信设备同时发送帧的事件，从而允许下一帧的通信动作正确地进行 。

公开(公告)号：EP2068518A1

公开(公告)日：2009-06-10

申请号：EP06798412.0

申请日：2006-09-28

Applicant: Fujitsu Microelectronics Limited

Inventor： SHIMAMURA, Akira ,  MITA, Koichi ,  FUJISHIMA, Hideshi ,  ARAI, Takashi ,  KO, Shunichi ,  TERASAWA, Takuya ,  MIKAMI, Koji ,  KOMADA, Naoya

IPC: H04L25/03

CPC classification number: H04L25/03834 ,  H04L25/03878

Abstract: To achieve an effective reflective waveform shaping in a bus system in which a plurality of transmitting ends and receiving ends are coupled, a device for monitoring a waveform state and calculating a waveform shaping parameter for each transmitting source, a device for storing the waveform shaping parameter calculated for each transmitting source, and a device for waveform shaping by the waveform shaping parameter are provided for the receiving end to perform waveform shaping. Therefore, a waveform can be shaped for each transmitting end coupled to a bus including a plurality of transmitting ends, and a reflective waveform can be corrected depending on a difference in the transmission direction which is not performed in the conventional waveform shaping in the bus coupling including a plurality of transmitting ends.