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JPS55163626A - Information recorder/reproducer - Google Patents

Information recorder/reproducer

Info

Publication number
JPS55163626A
JPS55163626A JP6848379A JP6848379A JPS55163626A JP S55163626 A JPS55163626 A JP S55163626A JP 6848379 A JP6848379 A JP 6848379A JP 6848379 A JP6848379 A JP 6848379A JP S55163626 A JPS55163626 A JP S55163626A
Authority
JP
Japan
Prior art keywords
head
tracking
correction
signal
output
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
Application number
JP6848379A
Other languages
Japanese (ja)
Inventor
Kenichi Sawazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6848379A priority Critical patent/JPS55163626A/en
Publication of JPS55163626A publication Critical patent/JPS55163626A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Position Or Direction (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE: To increase the recording density for the fixed head type VTR, by giving the vibration to the head in a slight amount with the fixed frequency and in the track width direction at the reproducing time, extracting the tracking error signal out of the reproduction output of the head, and then giving a comparison between the tracking error signal and the driving signal of the head in order to give correction to the tracking.
CONSTITUTION: Head vibrating mechanism 20 is provided on head sending mechanism 7. When output voltage Vf of frequency (f) is applied to moving coil 25 from oscillator 26 along with the voltage of Vf' controlled through variable resistance 27, the slight vibration can be given to head 6 in the track width direction. The tracking correction is possible by piling tracking correction signal Vc onto driving signal Vf'. On the other hand, the reproduction output of head 6 extracts the video signal via amplifiers 28 and 29 at the reproducing time. And the output of amplifier 28 is compared with Vf' via rectifying/smoothing circuit 30, BPF31 of central frequency (f), amplifier 32 and modulator 33 each, and thus Vc is obtained. In such way, the tracking accuracy can be increased to then increase the recording density.
COPYRIGHT: (C)1980,JPO&Japio
JP6848379A 1979-06-01 1979-06-01 Information recorder/reproducer Pending JPS55163626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6848379A JPS55163626A (en) 1979-06-01 1979-06-01 Information recorder/reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6848379A JPS55163626A (en) 1979-06-01 1979-06-01 Information recorder/reproducer

Publications (1)

Publication Number Publication Date
JPS55163626A true JPS55163626A (en) 1980-12-19

Family

ID=13374968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6848379A Pending JPS55163626A (en) 1979-06-01 1979-06-01 Information recorder/reproducer

Country Status (1)

Country Link
JP (1) JPS55163626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774606A (en) * 1985-11-28 1988-09-27 Deutsche Thomson-Brandt Gmbh Head wheel arrangement for a recorder with threaded spindle for adjustability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774606A (en) * 1985-11-28 1988-09-27 Deutsche Thomson-Brandt Gmbh Head wheel arrangement for a recorder with threaded spindle for adjustability

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