JPS5464920A - Encoding system for picture information - Google Patents
Encoding system for picture informationInfo
- Publication number
- JPS5464920A JPS5464920A JP13088177A JP13088177A JPS5464920A JP S5464920 A JPS5464920 A JP S5464920A JP 13088177 A JP13088177 A JP 13088177A JP 13088177 A JP13088177 A JP 13088177A JP S5464920 A JPS5464920 A JP S5464920A
- Authority
- JP
- Japan
- Prior art keywords
- code
- counter
- line
- signal
- shift
- 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)
Abstract
PURPOSE: To obtain a encoding efficiency by carrying out encoding based on the transistion probability of the code between the shift code and the run-length.
CONSTITUTION: At control part 12, each "1" signal is encoded for the present line after checking whether the relative position, i.e., the shift distance is O and ±1 between the coordinates stored in preceding line counter 15 and present line counter 17. The other words, the shift is O in the case of the "1" signal a1 of preceding line A and the "1" signal of present line B respectively, and the address corresponding at part 12 is transmitted. Then the contents of code memory 20 is read out to code register 22, and its code length "2" is read out ot code length counter 24 respectively. Part 12 then sends the clock pulse to register 22 and counter 24 until the pulse to make the contents of counter 24 zero emerges at the signal line, and then the code is transmitted from transmission line 27. In this way, the encoding is carried out based on the transition probability of the code between the shift code and the run- length to obtain a high encoding efficiency.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13088177A JPS5464920A (en) | 1977-11-02 | 1977-11-02 | Encoding system for picture information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13088177A JPS5464920A (en) | 1977-11-02 | 1977-11-02 | Encoding system for picture information |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5464920A true JPS5464920A (en) | 1979-05-25 |
Family
ID=15044867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13088177A Pending JPS5464920A (en) | 1977-11-02 | 1977-11-02 | Encoding system for picture information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5464920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59175283A (en) * | 1983-03-24 | 1984-10-04 | Nec Corp | Coding circuit of facsimile |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS523323A (en) * | 1975-06-25 | 1977-01-11 | Fujitsu Ltd | Variable length block coded circuit |
-
1977
- 1977-11-02 JP JP13088177A patent/JPS5464920A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS523323A (en) * | 1975-06-25 | 1977-01-11 | Fujitsu Ltd | Variable length block coded circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59175283A (en) * | 1983-03-24 | 1984-10-04 | Nec Corp | Coding circuit of facsimile |
JPH0220034B2 (en) * | 1983-03-24 | 1990-05-07 | Nippon Electric Co |
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