Inventor
Roger W. Swanson
Inventor
Santa Clara, CA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Tprimary
G06TImage data processing or generation, in general47%
G06FElectric digital data processing26%
G09GArrangements or circuits for control of indicating devices using static means to present variable information11%
B42DBooks5%
H03MCoding5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
6,999,077'z-buffer based interpenetrating object detection for antialiasing'20066,972,760'Area and span based Z-buffer'20056,831,653'Graphics pixel packing for improved fill rate performance'20046,760,025'Z-buffer based interpenetrating object detection for antialiazing'20046,707,460'Fast and cheap correct resolution conversion for digital numbers'20046,259,454'Method and apparatus for interpolative, adaptive illumination in 3D graphics'20015,990,912'Virtual address access to tiled surfaces'19995,840,143'Method of making an identification card'19985,428,810'Allocation of resources of a pipelined processor by clock phase for parallel execution of dependent processes'19955,421,028'Processing commands and data in a common pipeline path in a high-speed computer graphics system'19955,224,208'Gradient calculation for texture mapping'19935,222,204'Pixel interpolation in perspective space'19935,025,405'Method of interpolating pixel values'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1995Patents assigned to HEWLETT PACKARD CO (5)· patent assignee history
1991Based in Loveland, CO, US· patent location history
1993–1995Based in Fort Collins, CO, US· patent location history
1998Patents assigned to CHAMPION BUSINESS FORMS INC (1)· patent assignee history
1998Based in Barrington, IL, US· patent location history
1999Patents assigned to S3 INC (1)· patent assignee history
1999–2006Based in Santa Clara, CA, US· patent location history
2001–2006Patents assigned to S3 GRAPHICS CO LTD (5)· patent assignee history
2004Patents assigned to SUN MICROSYSTEMS INC (1)· patent assignee history
2004–2005Based in Morgan Hill, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD CO | 5 | 1991–1995 |
| S3 GRAPHICS CO LTD | 5 | 2001–2006 |
| CHAMPION BUSINESS FORMS INC | 1 | 1998 |
| S3 INC | 1 | 1999 |
| SUN MICROSYSTEMS INC | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Clara, California, US | 4 | 1999–2006 |
| Fort Collins, CO, US | 4 | 1993–1995 |
| Morgan Hill, California, US | 3 | 2004–2005 |
| Barrington, Illinois, US | 1 | 1998 |
| Loveland, CO, US | 1 | 1991 |