초록 ▼

A disk drive includes a disk having data tracks including servo sectors and data regions disposed between the servo sectors. A transducer head writes data to and reads data from the data regions and reads servo information from the servo sectors. A spindle motor rotates the disk. A spindle motor dri

A disk drive includes a disk having data tracks including servo sectors and data regions disposed between the servo sectors. A transducer head writes data to and reads data from the data regions and reads servo information from the servo sectors. A spindle motor rotates the disk. A spindle motor driver provides current to the spindle motor. A track-following controller is responsive to the servo information for causing the transducer head to remain on track. A microprocessor performs a power-saving idle operation of causing the spindle motor driver to sequentially (1) provide no current to the spindle motor for at least one disk revolution and (2) provide current to the spindle motor for at least one disk revolution. The power-saving idle operation is performed while the track-following controller causes the transducer head to remain on track for multiple disk revolutions. The power-saving idle operation is typically performed during an idle state of the disk drive to reduce power consumed by the disk drive while permitting fast recovery from the idle state to read and write operations.

대표청구항 ▼

[ I claim:] [1.]1. A disk drive comprising:a disk including a recording surface having a plurality of data tracks, each data track having servo sectors and data regions disposed between the servo sectors, the servo sectors including servo information;transducer means for writing and reading from the

[ I claim:] [1.]1. A disk drive comprising:a disk including a recording surface having a plurality of data tracks, each data track having servo sectors and data regions disposed between the servo sectors, the servo sectors including servo information;transducer means for writing and reading from the data regions and reading servo information from the servo sectors;a spindle motor coupled to the disk to rotate the disk;a spindle motor driver for selectively providing current to the spindle motor;track-following control means being responsive to the servo information for causing the transducer means to remain on track; andprogrammable means for performing a power-saving idle operation of causing the spindle motor driver to sequentially (1) provide no current to the spindle motor for at least one disk revolution and (2) provide current to the spindle motor for at least one disk revolution, the power-saving idle operation being performed while the track-following control means causes the transducer means to remain on track for multiple disk revolutions.