JPS6414761A - Reel servo device - Google Patents

Reel servo device

Info

Publication number
JPS6414761A
JPS6414761A JP62170542A JP17054287A JPS6414761A JP S6414761 A JPS6414761 A JP S6414761A JP 62170542 A JP62170542 A JP 62170542A JP 17054287 A JP17054287 A JP 17054287A JP S6414761 A JPS6414761 A JP S6414761A
Authority
JP
Japan
Prior art keywords
reel
driving
tape
reels
motor
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.)
Granted
Application number
JP62170542A
Other languages
Japanese (ja)
Other versions
JPH0697525B2 (en
Inventor
Soujiyu Gotou
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.)
Kenwood KK
Original Assignee
Kenwood KK
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 Kenwood KK filed Critical Kenwood KK
Priority to JP62170542A priority Critical patent/JPH0697525B2/en
Publication of JPS6414761A publication Critical patent/JPS6414761A/en
Publication of JPH0697525B2 publication Critical patent/JPH0697525B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To almost fix the traveling speed of a tape independently of the winding diameter of the tape by detecting the rotational speed difference of reels and applying respectively reversed driving force to respective reel driving motors. CONSTITUTION:The rotational frequency of a tape feeding side reel 2 and that of a tape winding side reel 1 are independently detected and F/V converted into voltages proportional to respective rotational speeds by F/V converters 3, 4. The rotational speed differences of the reels 1, 2 are found out respectively from the rotational speeds of the reels 2, 1 and a motor driving circuit 9 for driving a reel driving motor 5 for the reel 1 is controlled by an output from a differential amplifier 7 obtained by subtracting the rotational speed of the reel 1 from that of the reel 2 to apply reel winding driving operation. On the other hand, a motor driving circuit 10 for driving a reel driving motor 6 for the reel 2 is controlled by an output from a differential amplifier 8. Consequently, a fixed tape traveling speed can be obtained.
JP62170542A 1987-07-08 1987-07-08 Reel servo equipment Expired - Lifetime JPH0697525B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170542A JPH0697525B2 (en) 1987-07-08 1987-07-08 Reel servo equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170542A JPH0697525B2 (en) 1987-07-08 1987-07-08 Reel servo equipment

Publications (2)

Publication Number Publication Date
JPS6414761A true JPS6414761A (en) 1989-01-18
JPH0697525B2 JPH0697525B2 (en) 1994-11-30

Family

ID=15906827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170542A Expired - Lifetime JPH0697525B2 (en) 1987-07-08 1987-07-08 Reel servo equipment

Country Status (1)

Country Link
JP (1) JPH0697525B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113543A (en) * 1990-09-03 1992-04-15 Hitachi Ltd Device and method for reel exchange type magnetic tape unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113543A (en) * 1990-09-03 1992-04-15 Hitachi Ltd Device and method for reel exchange type magnetic tape unit

Also Published As

Publication number Publication date
JPH0697525B2 (en) 1994-11-30

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