Inventor

Thomas C. Christensen

Inventor

Rochester, MN, US

Overview

1989–2000

Patent span

Physics

Primary field (CPC G)

Patents· 12 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 transducer79%

G06FElectric digital data processing7%

G09GArrangements or circuits for control of indicating devices using static means to present variable information7%

H04LTransmission of digital information, e.g. telegraphic communication7%

PatentTitleYear

6,130,794'Statistical monitoring of data channels for enhanced data recovery performance'2000 6,040,955'Self servo writing file'2000 6,014,277'Multipath channel apparatus and method using offset parameters to compensate for amplitude and timing errors in data storage devices'2000 5,949,603'Self servo writing file using the widest head'1999 5,923,502'Magneto-resistive head including a selectively placed low-reluctance path between shields'1999 5,790,341'Method and apparatus for reducing servo interference in a magneto-resistive head using skew between head and servo pattern'1998 5,612,710'Real time low cost, large scale array 65K color display using lamps'1997 5,570,247'Self servo writing file'1996 5,557,482'Multipath channel apparatus and method for data storage devices and communications systems wherein a data path is selected based on errors'1996 5,233,487'Functional measurement of data head misregistration'1993 5,189,566'Method and apparatus for recovering data'1993 4,821,125'Compensation of write current adn delta-V for recording component and radial position'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2000Patents assigned to IBM (10)· patent assignee history

1989–2000Based in Rochester, MN, US· patent location history

1997Patents assigned to FAIRTRON CORP (1)· patent assignee history

1997–1999Based in Johnston, IA, US· patent location history

2000Patents assigned to LUCENT TECHNOLOGIES INC (1)· patent assignee history

2000Based in Bethlehem, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	10	1989–2000
FAIRTRON CORP	1	1997
LUCENT TECHNOLOGIES INC	1	2000

Locations

Location	Patents	Span
Rochester, Minnesota, US	8	1989–2000
Johnston, IA, US	3	1997–1999
Bethlehem, Pennsylvania, US	1	2000