公开(公告)号：FR2733078A1

公开(公告)日：1996-10-18

申请号：FR9602951

申请日：1996-03-08

Applicant: SYQUEST TECHNOLOGY

Inventor： SUN KAI CHIH KAI ,  HERBST JAMES A ,  KIADEH MANSUR B ,  CHANG CHIH HSIUNG

IPC: G11B5/012 ,  G11B5/02 ,  G11B5/024 ,  G11B5/48 ,  G11B5/55 ,  G11B5/596 ,  G11B19/00 ,  G11B19/02 ,  G11B19/12 ,  G11B23/03 ,  G11B25/04 ,  G11B20/00

Abstract: A higher-capacity disk drive system and a higher-capacity removable disk cartridge adapted for downward compatibility with older, lower-capacity disk drive systems, wherein a unique control information format is stored on higher-capacity removable disk cartridges to distinguish them from older, lower-capacity removable disk cartridges and thereby to facilitate cartridge capacity recognition by the higher-capacity disk drive system. Upon recognizing the capacity of an inserted removable disk cartridge, the higher-capacity disk drive system can read and write data to the removable disk cartridge such that data which it stores on a lower-capacity removable disk cartridge may be read by lower-capacity disk drive systems.

公开(公告)号：FR2723244A1

公开(公告)日：1996-02-02

申请号：FR9509096

申请日：1995-07-26

Applicant: SYQUEST TECHNOLOGY

Inventor： SUN KAI CHIH KAI ,  THORSEN JACK DUANE ,  POLLOCK DUNCAN LEE ,  LOW YEE CHEOK ,  CHOO YIN YEOW ,  LIM KIAN KOK

IPC: G11B21/22 ,  G11B5/54 ,  G11B21/12 ,  G11B21/04

Abstract: PROBLEM TO BE SOLVED: To minimize clash between a read/write head and a recordign medium, and thereby to improve the reliability of a disk drive by employing one mechanism for launching/retraction of the read/write head. SOLUTION: The mechanism includes a retract lever 81, a retract lever lock 118, a mechanical biasing member (spring 76 or the like), and a voice coil motor 16. After launching, the voice coil motor 16 is used to rotate the retract lever 91 to increase the potential energy of the biasing member. Then the retract lever lock 118 is used to store the built-up potential energy. On the occurrence of a power failure of the disk drive, the mechanism retracts the read/write heads 55, 58 automatically from the medium. The stored mechanical energy during the retract motion of the read/write heads 55, 58 acts on the retract lever 91 to allow the read/write heads 55, 58 automatically to be retracted from the medium.