Inventor
BUECHLER CHRISTIAN
DE42 patents
⚠️ This page may combine multiple inventors who share the name “BUECHLER CHRISTIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
THOMSON BRANDT GMBH
22 patentsUS6266305B1Jul 24, 2001
Device for reading from and/or writing to optical recording media
THOMSON BRANDT GMBH43 citations92
US5715232AFeb 3, 1998
Recording and reproduction of items of information using ROM-RAM storage media
THOMSON BRANDT GMBH28 citations92
US5412634AMay 2, 1995
Optical scanning device for a disc player including improved focusing apparatus
THOMSON BRANDT GMBH20 citations92
US5031162AJul 9, 1991
Magneto-optical recorded medium with a transparent substrate layer
THOMSON BRANDT GMBH24 citations92
US6363044B1Mar 26, 2002
Automatically adapting forward or reversed biased photodiode detection circuit
THOMSON BRANDT GMBH19 citations82
US7099241B1Aug 29, 2006
Apparatus for scanning optical recording media
THOMSON BRANDT GMBH9 citations74
US6266303B1Jul 24, 2001
Apparatus for reading or writing optical recording carriers
THOMSON BRANDT GMBH9 citations74
US6169716B1Jan 2, 2001
Data slicer for an apparatus and a method for reading from and/or writing to optical recording media
THOMSON BRANDT GMBH12 citations74
US6084835AJul 4, 2000
Device for scanning optical discs using phase detection in a system with significant objective lens movement
THOMSON BRANDT GMBH11 citations74
US5764605AJun 9, 1998
G factor alignment
THOMSON BRANDT GMBH13 citations74
US5247507ASep 21, 1993
Optical scanning system for a sinusoidal data track
THOMSON BRANDT GMBH16 citations74
US5229902AJul 20, 1993
Circuitry for reversing a magnetic field
THOMSON BRANDT GMBH13 citations74
US5202874AApr 13, 1993
Circuit arrangement for identifying the type of an optical record carrier
THOMSON BRANDT GMBH14 citations74
US6219316B1Apr 17, 2001
Recording or reproducing device for recording media having different track spacings
THOMSON BRANDT GMBH9 citations73
US5325350AJun 28, 1994
Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains
THOMSON BRANDT GMBH7 citations73
US5251196AOct 5, 1993
Optical pick-up selectively reading and writing an optical and magneto-optical recorded medium
THOMSON BRANDT GMBH10 citations72
US5014253AMay 7, 1991
Optical pick-up for selective playback and recording on a magneto-optically recorded medium
THOMSON BRANDT GMBH12 citations72
US5953304ASep 14, 1999
Optical disc recording or playback device with corrected focus optical scanning
THOMSON BRANDT GMBH4 citations63
US5278818AJan 11, 1994
Magneto-optical recording circuitry for reversing a magnetic field
THOMSON BRANDT GMBH6 citations63
US5519395AMay 21, 1996
Digital recording and reproduction device
THOMSON BRANDT GMBH3 citations62
US5570328AOct 29, 1996
Optical scanning device with coarse and fine scanning control
THOMSON BRANDT GMBH3 citations54
US6781948B2Aug 24, 2004
Device for reading from and/or writing to optical recording media
THOMSON BRANDT GMBH0 citations52
THOMSON LICENSING
17 patentsUS7466636B2Dec 16, 2008
Method for generating a corrected error signal, and corresponding apparatus
THOMSON LICENSING13 citations84
US7280450B2Oct 9, 2007
Method and device for detecting land pre-pits
THOMSON LICENSING7 citations74
US7542381B2Jun 2, 2009
Method and device for track counting in optical recording media
THOMSON LICENSING2 citations63
US7499382B2Mar 3, 2009
Method for gain adjustment for production of a lens position signal, and a corresponding appliance for reading from and/or writing to an optical recording medium
THOMSON LICENSING3 citations63
US7266057B2Sep 4, 2007
Method for generating a lens position signal and corresponding apparatus for reading from and/or writing to an optical recording medium
THOMSON LICENSING4 citations63
US7184375B1Feb 27, 2007
Apparatus for scanning optical recording media using a differential phase detection method
THOMSON LICENSING4 citations62
US7170833B2Jan 30, 2007
Apparatus for scanning optical recording media using DPD tracking method with analog and digital delay elements
THOMSON LICENSING2 citations62
US7206263B2Apr 17, 2007
Method for position control in optical data carriers with address information
THOMSON LICENSING2 citations59
US7382077B2Jun 3, 2008
Electric motor
THOMSON LICENSING5 citations58
US7218583B2May 15, 2007
Method for land pre-pit recovery
THOMSON LICENSING3 citations57
US7151719B2Dec 19, 2006
Method for reducing the noise in a wobble signal
THOMSON LICENSING2 citations57
US7468935B2Dec 23, 2008
Optimized tracking method
THOMSON LICENSING0 citations52
US7123572B2Oct 17, 2006
Method for reducing the noise in a wobble signal
THOMSON LICENSING0 citations52
US7336566B2Feb 26, 2008
Method and apparatus for track type identification, and method of track jump
THOMSON LICENSING1 citations51
US7663996B2Feb 16, 2010
Track jumping for optical recording media
THOMSON LICENSING0 citations45
US7345965B2Mar 18, 2008
Method for track counting and corresponding apparatus for reading from and/or writing to an optical recording medium
THOMSON LICENSING0 citations42
US7065010B2Jun 20, 2006
Method for tracking in an optical recording/reading apparatus, and corresponding apparatus
THOMSON LICENSING0 citations41