Inventor
WEIRAUCH CHARLES R
US32 patents
⚠️ This page may combine multiple inventors who share the name “WEIRAUCH CHARLES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
19 patentsUS7042372B2May 9, 2006
Encoding information in codes identifying beginning of regions of data
HEWLETT PACKARD DEVELOPMENT CO21 citations92
US6845072B1Jan 18, 2005
DVD defect management scheme that is transparent to DVD video players
HEWLETT PACKARD DEVELOPMENT CO33 citations92
US7187637B2Mar 6, 2007
Opto-mechanical adjustment based on sensing label side of optical disc
HEWLETT PACKARD DEVELOPMENT CO15 citations84
US7145586B2Dec 5, 2006
Marking optical disc based on information related to data side thereof
HEWLETT PACKARD DEVELOPMENT CO13 citations82
US7636440B2Dec 22, 2009
Digital watermark with variable location
HEWLETT PACKARD DEVELOPMENT CO6 citations74
US6956799B1Oct 18, 2005
Phase discontinuity compensation in a bit-accurate optical drive
HEWLETT PACKARD DEVELOPMENT CO6 citations73
US7804752B2Sep 28, 2010
Focal offset recording system and method
HEWLETT PACKARD DEVELOPMENT CO5 citations63
US7800988B2Sep 21, 2010
Optical recording using secondary tracking method
HEWLETT PACKARD DEVELOPMENT CO5 citations63
US7283455B2Oct 16, 2007
Data media having variable control field in data units
HEWLETT PACKARD DEVELOPMENT CO3 citations63
US7911906B2Mar 22, 2011
Data structure for control information on rewriteable data storage medium
HEWLETT PACKARD DEVELOPMENT CO1 citations62
US7877543B2Jan 25, 2011
System and method for writing data and a time value to an addressable unit of a removable storage medium
HEWLETT PACKARD DEVELOPMENT CO3 citations62
US6765937B1Jul 20, 2004
Apparatus and method for analysis and control of timing of a train of high speed, high power laser pulses
HEWLETT PACKARD DEVELOPMENT CO4 citations62
US7346915B2Mar 18, 2008
Compact and portable optical disc drive
HEWLETT PACKARD DEVELOPMENT CO4 citations61
US8997251B2Mar 31, 2015
Virtual write protection system
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US7996606B2Aug 9, 2011
System and method for writing data and a time value to an addressable unit of a removable storage medium
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US7746746B2Jun 29, 2010
Optical media with control data in wobble
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US7657943B2Feb 2, 2010
Data structure for control information on rewriteable data storage media
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US7657487B2Feb 2, 2010
Apparatus and method for providing data storage device security
HEWLETT PACKARD DEVELOPMENT CO0 citations50
US7639272B2Dec 29, 2009
Device and method for optical scanning
HEWLETT PACKARD DEVELOPMENT CO0 citations50
DELL PRODUCTS LP
5 patentsUS7391694B2Jun 24, 2008
System and method for embedding optical drive compatibility information in optical media
DELL PRODUCTS LP46 citations94
US7885172B2Feb 8, 2011
System and method for embedding optical drive compatibility information in optical media
DELL PRODUCTS LP2 citations60
US7606127B2Oct 20, 2009
System and method for embedding optical drive compatibility information in optical media
DELL PRODUCTS LP1 citations60
US7352670B2Apr 1, 2008
System and method for optical media information storage life tracking
DELL PRODUCTS LP3 citations59
US7852724B2Dec 14, 2010
System and method for optical media information storage life tracking
DELL PRODUCTS LP0 citations50
WEIRAUCH CHARLES R
4 patentsUS8984218B2Mar 17, 2015
Drive indicating mechanism for removable media
WEIRAUCH CHARLES R1 citations50
US8752198B2Jun 10, 2014
Virtual write protection system
WEIRAUCH CHARLES R0 citations50
US8339920B2Dec 25, 2012
Optical storage medium with optically detectable marks
WEIRAUCH CHARLES R0 citations50
US9021197B2Apr 28, 2015
Drive indicating mechanism for removable media
WEIRAUCH CHARLES R0 citations39