JPS5611621A - Information recording and reproducing unit - Google Patents
Information recording and reproducing unitInfo
- Publication number
- JPS5611621A JPS5611621A JP8394979A JP8394979A JPS5611621A JP S5611621 A JPS5611621 A JP S5611621A JP 8394979 A JP8394979 A JP 8394979A JP 8394979 A JP8394979 A JP 8394979A JP S5611621 A JPS5611621 A JP S5611621A
- Authority
- JP
- Japan
- Prior art keywords
- head
- recording
- tracking
- output
- reproducing
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
PURPOSE: To simplify the construction, by oscillating the recording and reproducing head in fine amplitude with a given frequency toward the track width, detecting the tracking error signal and controlling the switching control mechanism with the tracking correction signal obtained from the comparison with the drive signal, in the recording and reproducing unit having the tracking switching control set.
CONSTITUTION: The recording and reproducing head 6 is moved to the direction of the tape width with the head moving stand 14 with the revolution of the pulse motor 12. The output Vf of the oscillator 19 oscillates the head 6 in the frequency of 5W20Hz and in the amplitude of 1/5W1/10 of the track width via the head wobbling control circuit 20, variable resistor 21, head position control circuit 18 and pulse motor 12. The output of the head 6 is compared with Vf at the ring modulator 27 via the video amplifiers 22, 23, smoothing circuit 24, and bandpass filter 25 to control the head position with the tracking correction signal Vc of the output. Accordingly, the tracking correction can automatically be made with a simple construction.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8394979A JPS5611621A (en) | 1979-07-04 | 1979-07-04 | Information recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8394979A JPS5611621A (en) | 1979-07-04 | 1979-07-04 | Information recording and reproducing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5611621A true JPS5611621A (en) | 1981-02-05 |
Family
ID=13816830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8394979A Pending JPS5611621A (en) | 1979-07-04 | 1979-07-04 | Information recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5611621A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754586A (en) * | 1984-07-03 | 1988-07-05 | Toyota Jidosha Kabushiki Kaisha | Clip for fixing vehicle window glass |
-
1979
- 1979-07-04 JP JP8394979A patent/JPS5611621A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754586A (en) * | 1984-07-03 | 1988-07-05 | Toyota Jidosha Kabushiki Kaisha | Clip for fixing vehicle window glass |
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