G11B19/24 - CPC Classification Index

ClassID:

198633 ⎘

G11B19/24 - CPC Classification

Classification description:

Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head; Driving; Starting; Stopping; Control thereof Arrangements for providing constant relative speed between record carrier and head

Sub-classes:

G11B19/247 » using electrical means 27
G11B19/253 » using mechanical means 0

Recent Application in this class:

20190244633

2019-08-08

Phonograph playing vehicle

20140211343

2014-07-31

Disk drive device with a flourescent lubricant

20120032671

2012-02-09

Method to determine presence of rotator and method to adjust optimal gain

20110127939

2011-06-02

PAIR POLE ASYMMETRY COMPENSATION IN BACK ELECTROMOTIVE FORCE ZERO CROSS DETECTION

20080180047

2008-07-31

Pair pole asymmetry compensation in back electromotive force zero cross detection

20080082994

2008-04-03

Optical disk apparatus and disk rotation speed control method thereof

20070205737

2007-09-06

Control circuit and method of controlling rotation frequency of spindle in optical disc drive for reducing frequency difference of output signals respectively corresponding to different disc rotation modes

20070076088

2007-04-05

Optical disc apparatus and method of controlling the same

14287511

2015-10-27

Data storage device employing sliding mode control of spindle motor