ClassID:

198792

G11B20/10074 - CPC Classification

Classification description:

Signal processing not specific to the method of recording or reproducing; Circuits therefor; Digital recording or reproducing; Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom EPR4, i.e. extended partial response class 4, polynomial (1-D) *(1+D)

Recent Application in this class:
#1
20160077941
2016-03-17

Identifying a defect in a data-storage medium

#2
20140226232
2014-08-14

Adaptive soft-output detector for magnetic tape read channels

#3
20140226231
2014-08-14

Adaptive soft-output detector for magnetic tape read channels

#4
20130335849
2013-12-19

Adaptive soft-output detector for magnetic tape read channels

#5
20130335846
2013-12-19

Adaptive soft-output detector for magnetic tape read channels

#6
20130335845
2013-12-19

Adaptive soft-output detector for magnetic tape read channels

#7
20120144228
2012-06-07

Apparatus and method to read information from an information storage medium

#8
20120126876
2012-05-24

Gain control with multiple integrators

#9
20120047396
2012-02-23

Identifying a defect in a data-storage medium

#10
20120036414
2012-02-09

Rendering data write errors detectable

#11
20120036395
2012-02-09

Detecting data-write errors

#12
20110242692
2011-10-06

Data-dependent noise-predictive maximum likelihood detection (DD-NPML) for magnetic recording

#13
20110032630
2011-02-10

MULTI-MODE LOOP ADAPTATION SCHEME FOR HIGH-DENSITY DATA RECORDING CHANNEL

#14
20100318868
2010-12-16

Apparatus and method to read information from an information storage medium

#15
20100318867
2010-12-16

Apparatus and method to read information from an information storage medium

#16
20100176865
2010-07-15

Gain control with multiple integrators

#17
20090019102
2009-01-15

Coefficient memory for least mean square finite impulse response filter

#18
20090019101
2009-01-15

Coefficient control for filter in magnetic media read channel

#19
20080253012
2008-10-16

Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML Viterbi detector

#20
20080178060
2008-07-24

Signal processing apparatus and a data recording and reproducing apparatus including local memory processor

#21
20070285817
2007-12-13

Servo field preamble detector and methods for use therewith

#22
20070168843
2007-07-19

Decoder and decoding method for decoding a code by selecting a path out of paths in a trellis diagram

#23
20070115574
2007-05-24

Asynchronous read channel shaped toward generalized partial response characteristics

#24
20060119964
2006-06-08

Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML viterbi detector

#25
20060069945
2006-03-30

Signal processing apparatus and a data recording and reproducing apparatus including local memory processor