Title:
多重ワード通信におけるエラー検出装置および方法
Document Type and Number:
Japanese Patent JP4028575
Kind Code:
B2
Abstract:
A method and apparatus colors the conventional error codes of each word of a multiword transmission to facilitate the detection of words which are out of order or not part of the transmission, without affecting the data in the word. A 1-bit by n-bit matrix is assembled using the header word, and zeros for the header of the multiword transmission, or the data word, error code, if any, an identifier portion of the header word and zeros for each data word, and the 1-bit by n-bit matrix is multiplied by an n-bit by m-bit matrix assembled from a conventional error coding matrix and other matrices. The result either produces an error code to be sent with the header or data, or a check code to be verified as all zeros to indicate the absence of bit errors within the header or data word, and that the word is in the proper packet and in the proper sequence within the packet. An alternate method and apparatus colors the data portion of certain words of multiword transmissions to provide an alternate manner of facilitating the detection of words which are out of order or not part of the transmission.
Inventors:
Shimizu, Takeshi
Wicky, Thomas, Martin
Heland, patrick, james
Wicky, Thomas, Martin
Heland, patrick, james
Application Number:
JP2006119897A
Publication Date:
December 26, 2007
Filing Date:
April 24, 2006
Export Citation:
Assignee:
富士通株式会社
International Classes:
H03M13/00; H03M13/09; H03M13/03; H04L1/00; H04L29/08
Domestic Patent References:
| JP3145337A | ||||
| JP1196774A | ||||
| JP63187471A | ||||
| JP5236073A |
Foreign References:
| EP0564825B1 |
Attorney, Agent or Firm:
Takashi Ishida
Shigeru Tsuchiya
Masaya Nishiyama
Shigeru Tsuchiya
Masaya Nishiyama