JPS6424634A - Variable length encoder - Google Patents
Variable length encoderInfo
- Publication number
- JPS6424634A JPS6424634A JP62179937A JP17993787A JPS6424634A JP S6424634 A JPS6424634 A JP S6424634A JP 62179937 A JP62179937 A JP 62179937A JP 17993787 A JP17993787 A JP 17993787A JP S6424634 A JPS6424634 A JP S6424634A
- Authority
- JP
- Japan
- Prior art keywords
- difference
- variable length
- differential
- section
- subtractor
- 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
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
PURPOSE:To always maintain the transmission efficiency at maximum regardless of the status of data by inserting a difference correction part and an operation part between a differential coding section and a variable length coding section. CONSTITUTION:A differential correction section 21 consists of a delay circuit (DL) 31 and a subtractor 32. The subtractor 32 applies the subtraction to obtain a difference between a difference DELTAL and a mean value outputted from an arithmetic section 22. Thus, a shortest code is assigned to a differential data with the high frequency of occurrence at all times.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62179937A JPS6424634A (en) | 1987-07-21 | 1987-07-21 | Variable length encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62179937A JPS6424634A (en) | 1987-07-21 | 1987-07-21 | Variable length encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424634A true JPS6424634A (en) | 1989-01-26 |
Family
ID=16074544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62179937A Pending JPS6424634A (en) | 1987-07-21 | 1987-07-21 | Variable length encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424634A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03119865A (en) * | 1989-09-30 | 1991-05-22 | Minolta Camera Co Ltd | Image data compression device |
-
1987
- 1987-07-21 JP JP62179937A patent/JPS6424634A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03119865A (en) * | 1989-09-30 | 1991-05-22 | Minolta Camera Co Ltd | Image data compression device |
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