ClassID:

198983

G11B2020/1484 - CPC Classification

Classification description:

Signal processing not specific to the method of recording or reproducing; Circuits therefor; Digital recording or reproducing using self-clocking codes characterised by the use of two levels Codewords used in servo patterns

Recent Application in this class:
#1
20120212852
2012-08-23

Determining a reference waveform used by a correlator in a servo channel

#2
20120014010
2012-01-19

Determining a reference waveform used by a correlator in a servo channel

#3
20110273793
2011-11-10

Determination of timing based servo pattern type

#4
20110157737
2011-06-30

Systems and methods for detecting a reference pattern

#5
20110002061
2011-01-06

Circuit and method for detecting the phase of a servo signal

#6
20100302666
2010-12-02

Detecting a periodic sequence of servo signals

#7
20100172048
2010-07-08

Servo patterns for patterned media

#8
20100067135
2010-03-18

Inspection apparatus and inspection method of magnetic disk or magnetic head

#9
20100067134
2010-03-18

Adaptive track shape control during self servo-write

#10
20090323214
2009-12-31

Modulated disk lock clock and methods for using such

#11
20090244775
2009-10-01

ADJACENT-TRACK-ERASURE (ATE) REFRESH WITH INCREASED TRACK RESOLUTION FOR OFTEN-WRITTEN AREAS

#12
20090244760
2009-10-01

Magnetic storage control apparatus, magnetic storage control method, and magnetic storage apparatus

#13
20090237832
2009-09-24

Error correction coding of longitudinal position information

#14
20090207515
2009-08-20

Error correction capability for longitudinal position data in a tape storage system

#15
20090164843
2009-06-25

Vibration-aware data reassignment

#16
20090086599
2009-04-02

OPTICAL DISC APPARATUS AND TRACKING CONTROL METHOD

#17
20080094742
2008-04-24

Servo patterns for patterned media

#18
20080062840
2008-03-13

METHOD AND APPARATUS FOR DETECTING OPTICAL DISK TYPE

#19
20080056092
2008-03-06

High-density read-only optical disc, and optical disc apparatus and method using the same

#20
20080055759
2008-03-06

Apparatus, system, and method for detecting a periodic sequence of servo signals

#21
20070285817
2007-12-13

Servo field preamble detector and methods for use therewith

#22
20070019316
2007-01-25

PRML based magnetic servo position demodulator

#23
20060132955
2006-06-22

Synchronizing an asynchronously detected servo signal to synchronous servo demodulation

#24
20050063261
2005-03-24

High-density read-only optical disc, and optical disc apparatus and method using the same

#25
20050063088
2005-03-24

Systems for limiting channel control values to thereby improve servo-demodulation robustness

#26
15453547
2017-10-10

Codes and techniques for magnetic recording