Fixed disk drive

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360 7703, 360 7807, 360 7811, 360106, 310 49R, G11B 2108, G11B 2110, H02K 3700

Patent

active

049204343

ABSTRACT:
A higher performance, higher capacity, low cost fixed (Winchester) disk drive avoids the need of a servo surface and servo channel for head positioning by use of a mass balanced rotary actuator, a polyphase optical head position transducer coupled closely to the actuator and head position correction information sampled from the data surface by the data head.

REFERENCES:
patent: Re32075 (1986-01-01), Harrison et al.
patent: 3034111 (1962-05-01), Hoagland
patent: 3039102 (1962-06-01), Fuller et al.
patent: 3185972 (1965-05-01), Sippel
patent: 3426337 (1969-02-01), Black et al.
patent: 3449734 (1969-06-01), Frey et al.
patent: 3523229 (1970-08-01), Black et al.
patent: 3584015 (1974-12-01), Janssen
patent: 3597750 (1971-08-01), Brunner et al.
patent: 3695767 (1972-10-01), George et al.
patent: 3737883 (1973-06-01), Sordello et al.
patent: 3749925 (1973-07-01), Hertrich
patent: 3812553 (1974-05-01), Kimura et al.
patent: 3849800 (1974-11-01), Cuzner et al.
patent: 3919697 (1975-11-01), Walker
patent: 3945037 (1976-03-01), Johnson
patent: 4004081 (1977-01-01), Zorn
patent: 4078173 (1978-03-01), Fultz
patent: 4122503 (1978-10-01), Allan
patent: 4135217 (1979-01-01), Jacques et al.
patent: 4136365 (1979-01-01), Chick et al.
patent: 4145725 (1979-03-01), Wallis
patent: 4196456 (1980-04-01), Manzke et al.
patent: 4217612 (1980-08-01), Matla et al.
patent: 4224514 (1980-09-01), Weber
patent: 4237502 (1980-12-01), Erickson Jr. et al.
patent: 4272973 (1981-07-01), Van Landingham
patent: 4371902 (1983-02-01), Baxter et al.
patent: 4371904 (1983-02-01), Brooke
patent: 4396959 (1983-08-01), Harrison et al.
patent: 4490635 (1984-12-01), Harrison et al.
patent: 4660106 (1987-04-01), Harrison et al.
patent: 4814909 (1989-03-01), Brown et al.
Operating and Service Manual No. 102780, Model D3000 Disk Memory Drive. Pertec Peripheral Equipment Division, copyright 1972 (Excerpt).
A. S. Hoagland, "Optical Servo of Magnetic Recording", IBM Tech. Discl. Bull., vol. 20, No. 10, Mar. 1978, pp. 4108-4109.
Bob McKnight, A Track Locating Servo System Utilizing the Data Heads as Absolute Position Transducers, IEEE Trans on Mags., vol. Mag.-14, No. 4, Jul. 1978, pp. 182-184.
Commander et al., "Servo Design for an Eight-Inch Disk File IBM Storage Technology", Feb. 1980, pp. 90-98.
Sugart Associates SA1000 8-Inch Fixed Disk Drive Product Specification, 2 pages, Sep. 1979.
Shugart Associates SA-1000 Fixed Disk Drive OEM Manual.
Diablo Systems Inc. Series 400 Disk Drive Product Description, Sep. 1976.
C. A. Walton, "Truck Seeking and Following", IBM Tech Discl. Bull., vol. 13, No. 11, Apr. 1971, pp. 3433-3434.
R. C. Jahnke, "Track-Locating and Following Apparatus for a Flexible Disk File", IBM Tech. Discl. Bull., vol. 23, No. 2, Jul. 1980, pp. 738-742.
A. Paton, "Correction of Data Track Misregistration in Servo Controlled Disk Files"., IBM Tech. Discl. Bull., vol. 17, No. 6, 1974, pp. 1781-1783.
Griffiths et al., "Self Calibrating Disk Storage Apparatus", IBM Tech. Disc. Bull., vol. 19, No. 6, Nov. 1976, pp. 1991-1992.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fixed disk 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 Fixed disk drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixed disk drive will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-38186

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.