Dynamic control of magnetic tape drive

Details Dynamic control of magnetic tape drive Dynamic control of magnetic tape drive

1997-01-24

1999-04-06

Edun, Muhammad N.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 39, G11B 509

Patent

active

058926330

ABSTRACT:
A magnetic tape drive dynamically adjusts a transport rate of tape (32) in accordance with a host data rate. The host data rate is assessed in relation to a data fill level of a buffer (116). A controller (130) of the drive compares the data fill level of the buffer with a buffer normalization value and generates an adjustment value for adjusting a signal indicative of the desired linear velocity of the tape. In one embodiment, the controller also dynamically changes the buffer normalization value to reflect e.g., historical performance of the host. In another embodiment the controller adjusts the transport rate when a head (100) is within a predetermined distance of a boundary point whereat the head must change tracks.

REFERENCES:
patent: 3614757 (1971-10-01), Burr
patent: 4143407 (1979-03-01), Liberty
patent: 4571674 (1986-02-01), Hartung
patent: 4872073 (1989-10-01), Fincher et al.
patent: 4905184 (1990-02-01), Giridhar et al.
patent: 4996690 (1991-02-01), George et al.
patent: 5121479 (1992-06-01), O'Brien
patent: 5132861 (1992-07-01), Behr et al.
patent: 5210829 (1993-05-01), Bitner
patent: 5226156 (1993-07-01), MacLean, Jr. et al.
patent: 5235692 (1993-08-01), Ayres et al.
patent: 5285327 (1994-02-01), Hetzler
patent: 5287478 (1994-02-01), Johnston et al.
patent: 5303095 (1994-04-01), Vuong
patent: 5349479 (1994-09-01), Arimura et al.
patent: 5412780 (1995-05-01), Rushton
patent: 5581795 (1996-12-01), Maupin et al.
patent: 5588012 (1996-12-01), Oizumi
patent: 5710676 (1998-01-01), Fry et al.

Affiliated with

Also associated with

Rating

Dynamic control of magnetic tape drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic control of magnetic tape drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic control of magnetic tape drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1376384