JPS5737976A - Code converter - Google Patents
Code converterInfo
- Publication number
- JPS5737976A JPS5737976A JP11138780A JP11138780A JPS5737976A JP S5737976 A JPS5737976 A JP S5737976A JP 11138780 A JP11138780 A JP 11138780A JP 11138780 A JP11138780 A JP 11138780A JP S5737976 A JPS5737976 A JP S5737976A
- Authority
- JP
- Japan
- Prior art keywords
- codes
- circuit
- code
- encoded
- high speed
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE:To reduce transmitting time, by performing MH encoding in processes which require high speed encodings and converting the MH codes into MR codes at the time of transmission. CONSTITUTION:When MH codes which can be encoded at high speed are input, an MH encode line extracting circuit 1 extracts the head line of the MH codes and gives a detecting signal to an EOl ''1'' insert circuit 2. In this way, the insert circuit 2 adds ''1'' to the head line and sents it to a code output buffer 3. At the same time, the MH code is sent to an MR code circuit 6 through a K-line buffer memory 5 and encoded into MR codes, after it is decoded at a MH decode circuit 4. Upon receiving the MR code, the buffer circuit 3 outputs converted MR codes. Since MH codes encoded at high speed in this way are transmitted after they are converted into MR codes, the transmitting time is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11138780A JPS5737976A (en) | 1980-08-13 | 1980-08-13 | Code converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11138780A JPS5737976A (en) | 1980-08-13 | 1980-08-13 | Code converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5737976A true JPS5737976A (en) | 1982-03-02 |
Family
ID=14559884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11138780A Pending JPS5737976A (en) | 1980-08-13 | 1980-08-13 | Code converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5737976A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089797A2 (en) * | 1982-03-19 | 1983-09-28 | Ing. C. Olivetti & C., S.p.A. | Digital image information compression and decompression method and apparatus |
JPS6032476A (en) * | 1983-08-03 | 1985-02-19 | Nippon Telegr & Teleph Corp <Ntt> | Method of changing expression level parameter in picture information transmission |
-
1980
- 1980-08-13 JP JP11138780A patent/JPS5737976A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0089797A2 (en) * | 1982-03-19 | 1983-09-28 | Ing. C. Olivetti & C., S.p.A. | Digital image information compression and decompression method and apparatus |
JPS6032476A (en) * | 1983-08-03 | 1985-02-19 | Nippon Telegr & Teleph Corp <Ntt> | Method of changing expression level parameter in picture information transmission |
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