Inventor
HAGEN MARK DAVID
US13 patents
⚠️ This page may combine multiple inventors who share the name “HAGEN MARK DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXAS INSTRUMENTS INC
6 patentsUS7688608B2Mar 30, 2010
Reference voltage change in a digital power supply
TEXAS INSTRUMENTS INC54 citations97
US7205749B2Apr 17, 2007
Power line communication using power factor correction circuits
TEXAS INSTRUMENTS INC299 citations97
US7919958B2Apr 5, 2011
Methods and apparatus for controlling a digital power supply
TEXAS INSTRUMENTS INC30 citations92
US7903439B2Mar 8, 2011
Methods and apparatus to control a digital power supply
TEXAS INSTRUMENTS INC14 citations92
US7787263B2Aug 31, 2010
Methods and apparatus to control a digital power supply
TEXAS INSTRUMENTS INC11 citations83
US7088070B2Aug 8, 2006
Resonant scanning mirror driver circuit
TEXAS INSTRUMENTS INC6 citations73
IBM
3 patentsUS5682274AOct 28, 1997
Method and apparatus for positioning transducers to correct for read and write element misregistration offsets which vary dependent on rotary actuator angular position across a disk medium
IBM34 citations88
US6219197B1Apr 17, 2001
Method and apparatus for servo positioning in a direct access storage device with a transducer read element width greater than ⅓ and less than ½ width of a data cylinder
IBM7 citations71
US6426844B1Jul 30, 2002
Method and apparatus for phase modulated servo positioning in a direct access storage device
IBM7 citations70