Robert H Craig

US Patent:

20100287485, Nov 11, 2010

Filed:

May 6, 2009

Appl. No.:

12/436420

Inventors:

Joseph Bertolami - Seattle WA, US
Samuel A. Mann - Bellevue WA, US
Matthew L. Bronder - Bellevue WA, US
Michael A. Dougherty - Issaquah WA, US
Robert M. Craig - Bellevue WA, US
Matthew W. Lee - Sammamish WA, US

International Classification:

G06F 15/16
G06F 3/048

US Classification:

715764, 709201

Abstract:

Systems and methods for unifying coordinate systems in an augmented reality application or system are disclosed. User devices capture an image of a scene, and determine a location based on the scene image. The scene image may be compared to cartography data or images to determine the location. User devices may propose an origin and orientation or transformation data for a common coordinate system and exchange proposed coordinate system data to agree on a common coordinate system. User devices may also transmit location information to an augmented reality system that then determines an a common coordinate system and transmits coordinate system data such as transformation matrices to the user devices. Images presented to users may be adjusted based on user device locations relative to the coordinate system.

US Patent:

42161339, Aug 5, 1980

Filed:

Mar 22, 1978

Appl. No.:

5/889061

Inventors:

Calvin K. Johnson - Palos Heights IL
Robert S. Craig - Hoffman Estates IL

Assignee:

Acme Resin Corporation - Forest Park IL

International Classification:

C08K 334
C08K 336

US Classification:

260 38

Abstract:

Shell process foundry resin compositions containing novolak resins are improved by incorporating therein from about 0. 5 to about 10 percent, based on the weight of the resin, of a finely divided, siliceous material such as fumed silica, bentonite, kaolin clay and attapulgus clay. The presence of the siliceous material provides resistance to peelback during the formation of sand shells and increases the stripping strengths of the incompletely cured molds.