Inventor
Mark Hennecken
Inventor
Parker, CO, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer73%
H03MCoding13%
G01RMeasuring electric variables7%
G06FElectric digital data processing7%
PatentTitleYear
8,006,172'Auxiliary path iterative decoding'20117,911,730'Magnetic head and tape drive for reading multiple data formats'20117,675,710'Tape drive with read/write head having legacy read elements and with special-purpose read channels'20107,478,315'Parallel spectral equalization channels with low density parity check codes'20097,206,873'Throughput optimization by activation of selected parallel channels in a multichannel tape drive'20077,139,141'System and method for read/write optimization'20067,019,930'Digital filtering and digital automatic gain control for a variable speed read channel'20067,006,317'Dynamically allocated parallel equalization and detection of a PRML read channel in a multi-channel drive'20066,894,858'Read equalizer optimization based on the PTR effects to write equalization'20056,870,698'Drum electronics control interface and protocol for recording/reproducing apparatus'20056,744,594'Servo write head with gaps for writing high and low frequency transitions'20046,710,967'High frequency and low frequency servo pattern'20045,637,999'Opamp based broad band phase shifter for use in detecting flaws in the media of disks for use in disk drives'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997Patents assigned to MAXTOR CORP (1)· patent assignee history
1997–2009Based in Parker, CO, US· patent location history
2004–2009Patents assigned to STORAGE TECHNOLOGY CORP (8)· patent assignee history
2005Patents assigned to EXABYTE CORP (1)· patent assignee history
2010Patents assigned to SUN MICROSYSTEMS INC (1)· patent assignee history
2010–2011Based in Denver, CO, US· patent location history
2011Patents assigned to ORACLE AMERICA INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STORAGE TECHNOLOGY CORP | 8 | 2004–2009 |
| ORACLE AMERICA INC | 2 | 2011 |
| EXABYTE CORP | 1 | 2005 |
| MAXTOR CORP | 1 | 1997 |
| SUN MICROSYSTEMS INC | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Parker, CO, US | 10 | 1997–2009 |
| Denver, CO, US | 3 | 2010–2011 |