Title:
【発明の名称】ディジタルデータの伝送方法およびそのための装置
Document Type and Number:
Japanese Patent JPH0744570
Kind Code:
B2
Abstract:
A method and apparatus for transmission of digital data in which data words having M parallel bits are encoded into code words having N parallel bits, the code words being serially transmitted and being accompanied by flags such as Start Delimiter, End Delimeter of the frame or token. The code words and the flags are selected so as to balance the DC component. The time interval between two successive transitions of the serially transmitted signals is limited to four times the period of the serial transmission clock. For detection of errors in transmission, the Hamming distance between a flag and any encoded sequence of the same length extracted from any message is at least equal to 2. The invention is useful with transmitters and receivers that exploit the properties of the transmission method, and is applicable to data networks.
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Inventors:
Claude Baku
Andre wazel
Christian chan cabrol
Rene Batist
Andre wazel
Christian chan cabrol
Rene Batist
Application Number:
JP27290487A
Publication Date:
May 15, 1995
Filing Date:
October 28, 1987
Export Citation:
Assignee:
Bull S.A.
International Classes:
G11B20/14; H03M5/14; H04L7/04; H04L25/32; H04L25/49; (IPC1-7): H04L25/49
Domestic Patent References:
| JP6074854A |
Attorney, Agent or Firm:
Takashi Koshiba
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