JPS5654631A - Magnetic reading device - Google Patents
Magnetic reading deviceInfo
- Publication number
- JPS5654631A JPS5654631A JP12854079A JP12854079A JPS5654631A JP S5654631 A JPS5654631 A JP S5654631A JP 12854079 A JP12854079 A JP 12854079A JP 12854079 A JP12854079 A JP 12854079A JP S5654631 A JPS5654631 A JP S5654631A
- Authority
- JP
- Japan
- Prior art keywords
- head
- signal
- delivered
- tape
- track
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/488—Disposition of heads
- G11B5/4893—Disposition of heads relative to moving tape
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To obtain a low-cost track variation correcting device, by disposing several magentic heads in the travelling direction of the magnetic tape with some distance secured each and then compensating the spaces electrically by the synchornous compensating circuit. CONSTITUTION:When the magnetic tape 3 has a normal travelling, the signal of the head 6U is delivered with a delay equivalent to the travelled distance (d) of the head 7U. For this purpose, the signal of the head 6U is delivered through the delay circuit 9. In the same way, the signal of the head 5U is delivered through the delay circuit 8 as the signal which cannot be detected since the head 5U is out of the magnetic track of the tape 3. The output is small also for the signal of the head 7U. Then in case the tape 3 has a track variation to be turned into the state 4, the signal of the head 5U becomes maximum. And the signal outputs of the heads 6U and 7U are made small or turned to 0. In this instant, the signal is the 5U signal with a switching carried out from head 6U to the head 5U. In such way, a compensation can be given to the track variation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12854079A JPS5654631A (en) | 1979-10-05 | 1979-10-05 | Magnetic reading device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12854079A JPS5654631A (en) | 1979-10-05 | 1979-10-05 | Magnetic reading device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654631A true JPS5654631A (en) | 1981-05-14 |
Family
ID=14987275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12854079A Pending JPS5654631A (en) | 1979-10-05 | 1979-10-05 | Magnetic reading device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654631A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58171702A (en) * | 1982-04-02 | 1983-10-08 | Nippon Kogaku Kk <Nikon> | Reproducing device of magnetic recorded information |
US4823235A (en) * | 1986-02-06 | 1989-04-18 | Fujitsu Limited | Earth connection device in metal core printed circuit board |
EP0590226A1 (en) * | 1992-09-22 | 1994-04-06 | Tandberg Data A/S | Magnetic tape storage unit with improved ability to read data by using a set of multiple read elements |
-
1979
- 1979-10-05 JP JP12854079A patent/JPS5654631A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58171702A (en) * | 1982-04-02 | 1983-10-08 | Nippon Kogaku Kk <Nikon> | Reproducing device of magnetic recorded information |
JPH0326442B2 (en) * | 1982-04-02 | 1991-04-10 | Nippon Kogaku Kk | |
US4823235A (en) * | 1986-02-06 | 1989-04-18 | Fujitsu Limited | Earth connection device in metal core printed circuit board |
EP0590226A1 (en) * | 1992-09-22 | 1994-04-06 | Tandberg Data A/S | Magnetic tape storage unit with improved ability to read data by using a set of multiple read elements |
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