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Patent Searching and Data


Title:
ENCODING DEVICE
Document Type and Number:
Japanese Patent JP2008103898
Kind Code:
A
Abstract:

To provide an encoding technique which has good code efficiency and can easily achieve synchronization with encoded data.

An encoding device 150 converts two-bit information data into four-bit encoded data according to a predetermined code rule. According to the code rule that the encoding device uses, one of four kinds of bit streams that the information data possibly include is converted into a four-bit bit stream wherein two bits at successive bit positions have values of "1" and a four-bit bit stream wherein all bits have values of "0" alternately. Other kinds of bit streams are converted into four-bit bit streams wherein only one bit has a value of "1" so that the bit streams having been encoded are different from one another.


Inventors:
MIZUKAWA SHIGEMITSU
Application Number:
JP2006283755A
Publication Date:
May 01, 2008
Filing Date:
October 18, 2006
Export Citation:
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Assignee:
ISHIDA SEISAKUSHO
International Classes:
H04L25/49; H03M5/06; H04L7/00
Domestic Patent References:
JPS55132160A1980-10-14
JPS63120527A1988-05-24
JPS56149152A1981-11-18
JPS58121855A1983-07-20
JPH01292927A1989-11-27
Attorney, Agent or Firm:
Shigeaki Yoshida
Yoshitake Hidetoshi
Takahiro Arita