Hewlett-packard Development Company, L.p.

Mark W Van Order

William James Allen

Huei Pei Kuo

Laurence Meade Hubby, Jr

Peter S Nyholm

Stephanie Schuckers

Esra Vural

A signal may be emitted by an emitter or transducer. The signal may be sensed by a sensor, such as an accelerometer. Features of a body part or portion may be one of detected, extracted, or constructed from the sensed signal. It may be determined whether the body part or portion matches that of a user, such as an authorized user, based on the features.

Determining a user based on features

A woven projection screen includes a viewing portion having a front side facing toward a viewing zone. The viewing portion includes a plurality of first filaments having asymmetric geometries in cross-section and having reflective surfaces for primarily reflecting an image signal light and a plurality of second filaments. The plurality of first filaments are interwoven with the plurality of second filaments, such that, the plurality of second filaments are configured to support the plurality of first filaments in a manner that causes the reflective surfaces to be positioned to redirect the image signal light into a range of angles toward the viewing zone.

Woven projection screen

Determining that a plurality of spatial light modulator (SLM) pixels includes one or more first regions of SLM pixels that satisfy an acceptable defective SLM pixel policy, and one or more second regions of SLM pixels that fail the policy, is disclosed. Utilizing the first regions of SLM pixels within a projection system that has a first resolution that is less than a second resolution that would have been provided by utilizing both the first regions of SLM pixels and the second regions of SLM pixels is also disclosed.

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Corvallis, OR, United States of America

Mark W Van Order