JPS5875323U - error detection and correction device - Google Patents
error detection and correction deviceInfo
- Publication number
- JPS5875323U JPS5875323U JP17078081U JP17078081U JPS5875323U JP S5875323 U JPS5875323 U JP S5875323U JP 17078081 U JP17078081 U JP 17078081U JP 17078081 U JP17078081 U JP 17078081U JP S5875323 U JPS5875323 U JP S5875323U
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- correction device
- error
- code
- error detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、（２，７）ラン長制限可変語長コードの種々
の読出し波形を示す図、第２図は、本考案に係る実施例
を示す図である。FIG. 1 is a diagram showing various read waveforms of a (2,7) run length limited variable word length code, and FIG. 2 is a diagram showing an embodiment according to the present invention.
Claims (1)
間の°４０９“の個数が２個から７個までに限られてい
る（２．７）ラン長制限可変長語＝１・〜ドのある単位
（例えば、ワード）に誤りが生じたか否かを指示する信
号により上記単位毎に誤りを訂正する誤り訂正装置にお
いて、１゛′と１′との間の０゛の個数が１個以下であ
ることを検出する手段と、＆＆ Ｉ Ｉｔと“１゛との
間の０゛の個数が８個以上であることを検出する手段と
、該コードの波形の振幅が所定のレベル範囲に入ってい
るかを検出する手段と該コードをデコードする手段と、
該デコーダからの出力により可変長語の区切りを検出す
る手段と、から構成されて、該可変長語の区切りと訂正
処理単位との照合確認をしながら、上記手段から検出さ
れた誤り指示信号と上記′ デコーダからの出力とを、
上記可変長語毎に区切って誤りを訂正することを特徴と
する誤り検出訂正装置。In binary information "1" and 0"', the number of "409" between "1" and "1" is limited to 2 to 7 (2.7) Run length limited variable length word =1. In an error correction device that corrects errors for each unit by a signal indicating whether an error has occurred in a certain unit (for example, a word), 0゛ between 1゛' and 1' means for detecting that the number of 0's is less than or equal to 1, means for detecting that the number of 0's between && I It and "1' is 8 or more, and the amplitude of the waveform of the code is means for detecting whether the code is within a predetermined level range; and means for decoding the code;
means for detecting a delimiter of variable-length words based on the output from the decoder; The above ′ output from the decoder and
An error detection and correction device characterized in that the error is corrected by segmenting each variable length word.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17078081U JPS5875323U (en) | 1981-11-18 | 1981-11-18 | error detection and correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17078081U JPS5875323U (en) | 1981-11-18 | 1981-11-18 | error detection and correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5875323U true JPS5875323U (en) | 1983-05-21 |
Family
ID=29962726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17078081U Pending JPS5875323U (en) | 1981-11-18 | 1981-11-18 | error detection and correction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5875323U (en) |
-
1981
- 1981-11-18 JP JP17078081U patent/JPS5875323U/en active Pending
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