JPS5771043A - Data compressing and writing device - Google Patents
Data compressing and writing deviceInfo
- Publication number
- JPS5771043A JPS5771043A JP55146278A JP14627880A JPS5771043A JP S5771043 A JPS5771043 A JP S5771043A JP 55146278 A JP55146278 A JP 55146278A JP 14627880 A JP14627880 A JP 14627880A JP S5771043 A JPS5771043 A JP S5771043A
- Authority
- JP
- Japan
- Prior art keywords
- character
- output
- characters
- data
- continuous
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/12—Use of codes for handling textual entities
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Digital Computer Display Output (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
PURPOSE:To improve performance and economy while reducing necessary storage space and data transfer time on the whole, by substituting a continuous character sequence of the same characters of input data by one character and its frequency of continuous appearance. CONSTITUTION:According to the discrimination output of a character comparison part 2 which receives the output of a shift register part 1 wherein input data is held temporarily as a character sequence and discriminates whether three continuous characters at the beginning are the same or not, and the output of a counting part 4 which counts the frequency of the continuation of the same character or difference characters, the output of the shift register part 1 is classified by compression mode and noncompression mode and written in a memory part 5 successively. Therefore, the storage space and data transfer time of a storage device are reduced without spoiling the input speed of the input character sequence and the transparency of data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55146278A JPS5771043A (en) | 1980-10-21 | 1980-10-21 | Data compressing and writing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55146278A JPS5771043A (en) | 1980-10-21 | 1980-10-21 | Data compressing and writing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5771043A true JPS5771043A (en) | 1982-05-01 |
Family
ID=15404101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55146278A Pending JPS5771043A (en) | 1980-10-21 | 1980-10-21 | Data compressing and writing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5771043A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62146047A (en) * | 1985-12-20 | 1987-06-30 | Sanyo Electric Co Ltd | Format control method for teletex equipment |
JPH01128086A (en) * | 1987-11-13 | 1989-05-19 | Nec Corp | String coding system |
-
1980
- 1980-10-21 JP JP55146278A patent/JPS5771043A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62146047A (en) * | 1985-12-20 | 1987-06-30 | Sanyo Electric Co Ltd | Format control method for teletex equipment |
JPH01128086A (en) * | 1987-11-13 | 1989-05-19 | Nec Corp | String coding system |
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