Tape cartridge and driving system having rotation detection unit

Details Tape cartridge and driving system having rotation detection unit Tape cartridge and driving system having rotation detection unit

1997-04-01

1998-12-15

Miller, Brian E.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

360132, 360 7304, 242344, G11B 1528, G11B 2330

Patent

active

058503161

ABSTRACT:
The rotation of a drive roll is detected using an rpm detection enabling element provided on the drive roll in order to control the driving device and reduce data error and loss of storage capacity. A cover member 3 and a base plate 4 make up a main cartridge member 2 within which a pair of tape reels 8, 9 are accommodated. A magnetic tape 7, placed around the tape reels 8 and 9, is driven by a drive roll 13 the outer periphery of which is partially exposed via an opening 21 formed in the front surface of the cover member 3. A capstan roll 46 of a driving device 40 is in surface contact with the driving roll 13 for transmitting its rotation to the drive roll. A rpm detection enabling element 34 is provided on the drive roll 13 and is detected through a detection window 35 provided in the cover member 3. The rotational speed difference between the drive roll and the capstan roll is used to detect slip therebetween.

REFERENCES:
patent: 4172231 (1979-10-01), d'Alayer de Costemore d'Arc et al.
patent: 4301488 (1981-11-01), Ramisch
patent: 4445651 (1984-05-01), Kimizuka et al.
patent: 4488690 (1984-12-01), Merle
patent: 4575022 (1986-03-01), Allwine, Jr. et al.
patent: 4688742 (1987-08-01), Hettich
patent: 4996611 (1991-02-01), Ito
patent: 5025334 (1991-06-01), Perona et al.
patent: 5087993 (1992-02-01), Kobayashi
patent: 5236146 (1993-08-01), Rudi et al.
patent: 5264972 (1993-11-01), Solhjell
patent: 5282098 (1994-01-01), Ohta et al.
patent: 5323279 (1994-06-01), Yokomachi et al.
Dollwetzel, R. H., "Eigenschaften und Anwendungen von Reflexlichtschranken", Feinwerktechnik & Messtechnik, Vo. 93, No. 7, Oct. 1985.

Affiliated with

Also associated with

Rating

Tape cartridge and driving system having rotation detection unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tape cartridge and driving system having rotation detection unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tape cartridge and driving system having rotation detection unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1462382