JPS6462870A - Signal converting device - Google Patents
Signal converting deviceInfo
- Publication number
- JPS6462870A JPS6462870A JP21787787A JP21787787A JPS6462870A JP S6462870 A JPS6462870 A JP S6462870A JP 21787787 A JP21787787 A JP 21787787A JP 21787787 A JP21787787 A JP 21787787A JP S6462870 A JPS6462870 A JP S6462870A
- Authority
- JP
- Japan
- Prior art keywords
- code
- image
- sequence
- code sequence
- parity
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To decrease a direct current component to a parity code by adding distortion to a code sequence so as to decrease the direct current component of the parity code and outputting the distorting code sequence and the parity code to correspond to the sequence. CONSTITUTION:In each image original code sequence to constitute an error correcting code, the plural number of distorting image code sequences 2ia to be different each other, to which the distortion of a fine level is added, are prepared. Then, a parity code 5ia is obtained respectively to an image original code sequence 4ia, which encodes in a weighting order an image original code sequence 20a and the distorting image code sequence 2ia and to respective image code sequences. Out of the codes, an error correcting code 4ia+5ia, in which the image code sequence and the direct current component of the parity code go to be minimum, is selected, transmitted and recorded. The distorting quantity to add to the image original code sequence is enough at a minimum level to obtain different code strings after the encoding in weighting order. Then, the quantity is 1 level in the code in weighting order and a picture element, to which the distortion is added, is one picture element enough in the image original code sequence. Thus, the direct current component of a parity signal can be decreased without the degradation of image quality.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21787787A JPS6462870A (en) | 1987-09-02 | 1987-09-02 | Signal converting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21787787A JPS6462870A (en) | 1987-09-02 | 1987-09-02 | Signal converting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6462870A true JPS6462870A (en) | 1989-03-09 |
Family
ID=16711169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21787787A Pending JPS6462870A (en) | 1987-09-02 | 1987-09-02 | Signal converting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6462870A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008533891A (en) * | 2005-03-16 | 2008-08-21 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Error handling method |
-
1987
- 1987-09-02 JP JP21787787A patent/JPS6462870A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008533891A (en) * | 2005-03-16 | 2008-08-21 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Error handling method |
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