JPS5663646A - Data compression recording method of digital signal - Google Patents
Data compression recording method of digital signalInfo
- Publication number
- JPS5663646A JPS5663646A JP14022179A JP14022179A JPS5663646A JP S5663646 A JPS5663646 A JP S5663646A JP 14022179 A JP14022179 A JP 14022179A JP 14022179 A JP14022179 A JP 14022179A JP S5663646 A JPS5663646 A JP S5663646A
- Authority
- JP
- Japan
- Prior art keywords
- data
- cycle
- correlation
- length
- making
- 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)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To effectively execute data compression recording and constitute an economical recording system by making the data length which has been obtained by equally dividing a digital data into optional length parts by time, making these parts one cycle, and making them correlate each other.
CONSTITUTION: Sampling is performed to the data length which has equally divided the reference cycle (m-cycle) and the cycle of a compression data (n-cycle) into the optional time length S1 mWS20 m and S1 nWS20 n, each corresponding sampling is compared, and it is decided that when each of them has all coincided, there is correlation, and on the other hand, when only one has not coincided, there is no correlation. In case of Si mWSi n=0 to all of i=1W20, a data of the m-th cycle and a data of the n-th cycle are considered to be correlated, and others are considered not to be correlated. In case when there is no correlation, a data which has no correlation, or a discrimination code of this data and a specific bit is recorded, and an original data is regenerated from this discrimination code.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14022179A JPS5663646A (en) | 1979-10-29 | 1979-10-29 | Data compression recording method of digital signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14022179A JPS5663646A (en) | 1979-10-29 | 1979-10-29 | Data compression recording method of digital signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5663646A true JPS5663646A (en) | 1981-05-30 |
Family
ID=15263718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14022179A Pending JPS5663646A (en) | 1979-10-29 | 1979-10-29 | Data compression recording method of digital signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5663646A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017916A (en) * | 1973-06-18 | 1975-02-25 | ||
JPS5487106A (en) * | 1977-12-23 | 1979-07-11 | Fujitsu Ltd | Data compression method |
-
1979
- 1979-10-29 JP JP14022179A patent/JPS5663646A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017916A (en) * | 1973-06-18 | 1975-02-25 | ||
JPS5487106A (en) * | 1977-12-23 | 1979-07-11 | Fujitsu Ltd | Data compression method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0330455A3 (en) | Image encoding apparatus | |
JPS5336430A (en) | Character print system for program calculator | |
JPS5663646A (en) | Data compression recording method of digital signal | |
JPS52149036A (en) | Detection method for memory capacity | |
JPS53136424A (en) | Correlative processing system for picture signal | |
JPS53111706A (en) | Recording and reproducing system for audio signals | |
JPS5377116A (en) | Data compression system | |
JPS5316544A (en) | Recording method of program processing time | |
JPS53149048A (en) | Method and system for processing metering data of metering apparatus to indicating data | |
JPS5431222A (en) | Character information memory system | |
JPS5349910A (en) | Video signal process system using rotary recording medium | |
JPS5428107A (en) | Drop-out detecting system | |
JPS5299724A (en) | Memory diagnosing method | |
JPS5237481A (en) | Operation recording and analyzing appartus | |
JPS5430741A (en) | Data processor | |
JPS5376604A (en) | Cllecting system for sound signal | |
JPS5231625A (en) | Memory test method | |
JPS5420628A (en) | Data output device | |
JPS5285425A (en) | Video information memory device | |
JPS52109846A (en) | Data collecting method | |
JPS5220675A (en) | Method for detecting and processing condition changes | |
JPS53117427A (en) | Copying system | |
JPS5227220A (en) | Assembler hardware system in computer input unit | |
JPS5312315A (en) | Diagnosis logic circuit for reading clock | |
JPS5230133A (en) | Data collection and processing system |