JPS5497004A - Data detector - Google Patents
Data detectorInfo
- Publication number
- JPS5497004A JPS5497004A JP353578A JP353578A JPS5497004A JP S5497004 A JPS5497004 A JP S5497004A JP 353578 A JP353578 A JP 353578A JP 353578 A JP353578 A JP 353578A JP S5497004 A JPS5497004 A JP S5497004A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- control signals
- preset
- data
- recording medium
- 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
- Electrically Operated Instructional Devices (AREA)
Abstract
PURPOSE: To make it possible to reliably detect the reluctant data, without any drop-out, even after a long use and upon far transmission by recording the data in a recording medium.
CONSTITUTION: A recording medium is recorded with a signal recording portion A for information such as explanation or music, an interruption instructing signal portion B and control signal portions C1 to C3 for data and is formed with protecting portions D. The interruption instructing signals fs effect several times of recordings of since waves of preset width for each preset time TS thereby to feed the operation interrupting signals to the drive mechanism of the recording medium so that they also act as the heading signals of the subsequent control signals C. The control signals C1 are preset to have a higher frequency fc than the signals B to record a plurality of bits with preset amplitude and period Tc while discriminating the duration to shorter and longer ones. Thus, it is possible to detect the information at a majority side, even if the control signals partially drop out, so that the desired accurate control signals can be generated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP353578A JPS5497004A (en) | 1978-01-17 | 1978-01-17 | Data detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP353578A JPS5497004A (en) | 1978-01-17 | 1978-01-17 | Data detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5497004A true JPS5497004A (en) | 1979-07-31 |
Family
ID=11560082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP353578A Pending JPS5497004A (en) | 1978-01-17 | 1978-01-17 | Data detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5497004A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740714A (en) * | 1980-08-22 | 1982-03-06 | Hitachi Ltd | Magnetic tape storage system |
| JPS5753802A (en) * | 1980-09-16 | 1982-03-31 | Toshiba Corp | Processor of digital signal |
| JPS5960711A (en) * | 1982-09-29 | 1984-04-06 | Nippon Television Kogyo Kk | Encoding and recording/reproducing device of sound signal |
| JPS6057571A (en) * | 1983-08-08 | 1985-04-03 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Video conversion system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236012A (en) * | 1975-09-17 | 1977-03-19 | Matsushita Electric Ind Co Ltd | Recording and playback device |
-
1978
- 1978-01-17 JP JP353578A patent/JPS5497004A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236012A (en) * | 1975-09-17 | 1977-03-19 | Matsushita Electric Ind Co Ltd | Recording and playback device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740714A (en) * | 1980-08-22 | 1982-03-06 | Hitachi Ltd | Magnetic tape storage system |
| JPS5753802A (en) * | 1980-09-16 | 1982-03-31 | Toshiba Corp | Processor of digital signal |
| JPH0345476B2 (en) * | 1980-09-16 | 1991-07-11 | Tokyo Shibaura Electric Co | |
| JPS5960711A (en) * | 1982-09-29 | 1984-04-06 | Nippon Television Kogyo Kk | Encoding and recording/reproducing device of sound signal |
| JPS6057571A (en) * | 1983-08-08 | 1985-04-03 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Video conversion system |
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