Inventor

David J. Concannon

Inventor

Farmington Hills, MI, US

Overview

1982–2001

Patent span

Physics

Primary field (CPC G)

Patents· 21 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Kprimary

G06KGraphical data reading35%

G02BOptical elements, systems or apparatus32%

H04NPictorial communication, e.g. television16%

G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%

G06FElectric digital data processing3%

PatentTitleYear

6,275,602'Illumination for imaging'2001 6,246,464'Illumination system'2001 6,178,014'Methods for illuminating documents'2001 6,103,985'Turn around loop apparatus for document scanning/processing'2000 5,825,945'Document imaging with illumination from lambertian surfaces'1998 5,717,779'Filtering illumination for image lift'1998 5,717,504'Apparatus for illuminating documents'1998 5,640,207'Camera for high-speed imaging'1997 5,606,173'Arrangement for aligning, focusing and normalizing imaging system'1997 5,519,513'Techniques for illuminating objects'1996 5,513,274'Adjusting illumination for image lift to match camera'1996 5,491,336'Document illumination with Lambertian cavity'1996 5,453,849'Integrating cylinder for object illumination'1995 5,420,945'Methods for aligning focusing and normalizing imaging system'1995 5,420,944'Techniques for aligning, focusing and normalizing imaging system'1995 5,259,043'Filtering illumination for image lift'1993 5,155,776'Filtering illumination for image lift'1992 5,068,912'Track gauges for aligning and focussing the imaging system in a high speed document handling system'1991 5,063,599'Electronic image lift'1991 4,993,802'Randomizing optical converter for illumination beam and method utilizing same'1991 4,344,036'Skip count clock generator'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to BURROUGHS CORP (1)· patent assignee history

1982Based in Ypsilanti, MI, US· patent location history

1991–2001Patents assigned to UNISYS CORP (19)· patent assignee history

1991–2001Based in Farmington Hills, MI, US· patent location history

2000Based in Lakeland, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNISYS CORP	19	1991–2001
BURROUGHS CORP	1	1982

Locations

Location	Patents	Span
Farmington Hills, MI, US	19	1991–2001
Lakeland, MI, US	1	2000
Ypsilanti, MI, US	1	1982