Dale W. Schroeder

Color image sensor with imaging elements imaging on respective regions of sensor elements

Touch device and method for providing tactile feedback

Optical device that measures distance between the device and a surface

Tracking motion using an interference pattern

Puck-based input device with rotation detection

Dual-positioning controller and method for controlling an indicium on a display of an electronic device

Accelerometer utilizing image-based movement tracking

Buffers for light modulation elements in spatial light modulators

Character entry system and method for electronic devices

Puck-based pointing device that provides multiple buttons