JPS5634117A - Detection system of error position - Google Patents
Detection system of error positionInfo
- Publication number
- JPS5634117A JPS5634117A JP10948179A JP10948179A JPS5634117A JP S5634117 A JPS5634117 A JP S5634117A JP 10948179 A JP10948179 A JP 10948179A JP 10948179 A JP10948179 A JP 10948179A JP S5634117 A JPS5634117 A JP S5634117A
- Authority
- JP
- Japan
- Prior art keywords
- polarity
- output
- information
- reset
- error
- 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
Abstract
PURPOSE: To enable to increase the precision of pointer through accurate detection of data position in error, by using the information relating to the polarity of reproduction signal or combining it with the information relating to the level.
CONSTITUTION: In the digital magnetic recorder such as magnetic tape, when the input signal is of positive or negative polarity, the comparators 9, 10 output the signal waveforms 3, 4 by the width of period corresponded respectively. The output is latched to the flip-flops (FF)11, 13 in synchronizing with the respective clock to set the information of the polarity, and this information is set to FF12, 14 at the next clock and simultaneously FF11, 13 are reset. Thus, when the polarity of waveform is alternately appeared, FF11, 13 and FF12, 14 are alternately set or reset, and when both are all in set state, the error output 22 is picked up from the OR gate 17.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10948179A JPS5634117A (en) | 1979-08-28 | 1979-08-28 | Detection system of error position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10948179A JPS5634117A (en) | 1979-08-28 | 1979-08-28 | Detection system of error position |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5634117A true JPS5634117A (en) | 1981-04-06 |
Family
ID=14511329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10948179A Pending JPS5634117A (en) | 1979-08-28 | 1979-08-28 | Detection system of error position |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5634117A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57208613A (en) * | 1981-06-15 | 1982-12-21 | Nippon Denso Co Ltd | Magnetic recorder and reproducer |
JPS6113478A (en) * | 1984-06-29 | 1986-01-21 | Nippon Hoso Kyokai <Nhk> | Discrimination system for digital signal level |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49202A (en) * | 1972-04-18 | 1974-01-05 |
-
1979
- 1979-08-28 JP JP10948179A patent/JPS5634117A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49202A (en) * | 1972-04-18 | 1974-01-05 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57208613A (en) * | 1981-06-15 | 1982-12-21 | Nippon Denso Co Ltd | Magnetic recorder and reproducer |
JPH0458671B2 (en) * | 1981-06-15 | 1992-09-18 | Nippon Denso Co | |
JPS6113478A (en) * | 1984-06-29 | 1986-01-21 | Nippon Hoso Kyokai <Nhk> | Discrimination system for digital signal level |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5634117A (en) | Detection system of error position | |
JPS538113A (en) | Recording density judgement system for magnetic tape | |
JPS53118015A (en) | Interpolation reproduction of information | |
JPS5512538A (en) | Detection method for stylus skip | |
JPS52116220A (en) | Recording and reproducing system of digital signals by magnetic tapes | |
JPS5370415A (en) | Synchronizing circuit for magnetic memory | |
JPS5277713A (en) | Signal recording and reproduction system | |
JPS5335515A (en) | Information processor for magnetic tape | |
JPS5349910A (en) | Video signal process system using rotary recording medium | |
JPS53144314A (en) | Magnetic recording system | |
JPS5250131A (en) | Information recording system | |
JPS5433629A (en) | Information reproducing lircuit | |
JPS5625280A (en) | Detector for keyboard information of automatic playing piano | |
JPS524216A (en) | Magnet record system | |
JPS52107756A (en) | Toothless state detection circuit of clock pulse | |
JPS52106705A (en) | Magnetic tape position signal reproducer | |
JPS5358210A (en) | Information recording and reproduction system | |
JPS5232311A (en) | Simple control recording system of input and output of digital signals using two-track cassette deck | |
JPS53135314A (en) | Information recording medium | |
JPS5421314A (en) | Phase synchronizing circuit | |
JPS51134118A (en) | Digital signal recording system | |
JPS5436914A (en) | Recording-reproducing system of digital data signals | |
JPS5263706A (en) | Data recording device | |
JPS5393897A (en) | Document handling apparatus | |
JPS55113181A (en) | Recorder |