JPS5674821A - Tracking control unit for magnetic tape device - Google Patents

Tracking control unit for magnetic tape device

Info

Publication number
JPS5674821A
JPS5674821A JP15015279A JP15015279A JPS5674821A JP S5674821 A JPS5674821 A JP S5674821A JP 15015279 A JP15015279 A JP 15015279A JP 15015279 A JP15015279 A JP 15015279A JP S5674821 A JPS5674821 A JP S5674821A
Authority
JP
Japan
Prior art keywords
head
adjacent tracks
track
level
constitution
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
JP15015279A
Other languages
Japanese (ja)
Inventor
Shigeo Tanaka
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 JP15015279A priority Critical patent/JPS5674821A/en
Publication of JPS5674821A publication Critical patent/JPS5674821A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To ensure an accurate tracking even to the track having a small pitch, by reproducing the pilot signals of the adjacent tracks via the erasing head having a difference of level to the reproduction head and thus controlling the head position.
CONSTITUTION: Both the reproduction head 21 and the erasing head 28 are provided with a difference of level set, and the head 28 reproduces also the multiplex signal of the voice signal and the pilot signal formed by the voice signal carrier waves of different frequencies with every track of the adjacent tracks. Then the pilot signals of the adjacent tracks are isolated through the BPF31b, and the DC detection output according to the reproduced pilot signal level is produced by the envelope circuit 34 or the like to be processed by the comparator 36. Thus the positions of both the heads 28 and 21 receive a feedback control. In such constitution, an accurate tracking is performed regardless of a small track pitch and a large recording density.
COPYRIGHT: (C)1981,JPO&Japio
JP15015279A 1979-11-20 1979-11-20 Tracking control unit for magnetic tape device Pending JPS5674821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15015279A JPS5674821A (en) 1979-11-20 1979-11-20 Tracking control unit for magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15015279A JPS5674821A (en) 1979-11-20 1979-11-20 Tracking control unit for magnetic tape device

Publications (1)

Publication Number Publication Date
JPS5674821A true JPS5674821A (en) 1981-06-20

Family

ID=15490629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15015279A Pending JPS5674821A (en) 1979-11-20 1979-11-20 Tracking control unit for magnetic tape device

Country Status (1)

Country Link
JP (1) JPS5674821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135080A (en) * 1984-07-27 1986-02-19 Hitachi Ltd Tracking control system of vtr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135080A (en) * 1984-07-27 1986-02-19 Hitachi Ltd Tracking control system of vtr

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