Freedom Scientific, Inc.

Other

Robert Steinberger

Garald Lee Voorhees

Ralph Ernest Ocampo

Gerald Lee Voorhees

Joseph Kenyon

Spencer Fleming

Joel Persinger

Disclosed is an apparatus and method for combating light sensitivity, or photophobia, for people with low vision. Both the apparatus and method filter particular wavelengths of light associated with photophobia. This filtering is achieved while maintaining a luminance that is acceptable to the user and that maintains contrast. The apparatus of the disclosure is a mechanical filter that can be applied over an electronic screen. The method utilizes software and a filtering module associated with either the CPU or GPU of a computer. The filtering module processes a video signal by eliminating certain targeted wavelengths of light.

Apparatus and method for reducing photophobia in electronic screens

A high efficiency method of processing images to provide perceptual high-contrast output. Pixel intensities are calculated by a weighted combination of a fixed number of static bounding rectangle sizes. This is more performant than incrementally growing the bounding rectangle size and performing expensive analysis on resultant histograms. To mitigate image artifacts and noise, blurring and down-sampling are applied to the image prior to processing.

High efficiency dynamic contrast processing

Screen magnification software on a touchscreen device detects when a low-vision user reaches the boundary of a magnified viewport. If additional canvas or menus lay on the other side of the boundary the present invention enables the low-vision user to maintain the same exploration gesture on the touchscreen while causing the underlying canvas to scroll into view in the direction of the gesture. This invention enables the low-vision user to navigate about the entire underlying canvas of a touchscreen graphic user interface with a single, intuitive touchscreen gesture even under magnification.

Gesture-based touch screen magnification

The present invention discloses methods of archiving and optimizing lectures, presentations and other captured video for playback, particularly for blind and low vision individuals. A digital imaging device captures a preselected field of view that is subject to periodic change such as a whiteboard in a classroom. A sequence of frames is captured. Frames associated with additions or erasures to the whiteboard are identified. The Cartesian coordinates of the regions of these alterations within the frame are identified. When the presentation is played back, the regions that are altered are enlarged or masked to assist the low vision user. In another embodiment of the invention, the timing of the alterations segments the recorded audio into chapters so that the blind user can skip forward and backward to different sections of the presentation.

Segmenting and playback of whiteboard video capture

Gesture-based screen-magnified touchscreen navigation

Whiteboard archiving and presentation method

Tape dispenser

A hand held tape dispenser for applying adhesive tape to a surface. The dispenser includes a housing for holding and dispensing a roll of tape and has a tape dispensing opening therein. A plurality of rollers are within the housing, the outer surfaces of which coact with each other and the tape to retain, guide and feed the tape through the opening. The outer surface of at least one of the rollers protrudes through the opening on one side thereof enabling frictional contact of the roller with the surface to be taped. When the tape dispenser passes over the surface in one direction the outer surface of the roller engages the surface and the tape causing it to roll and to coact and drive the other rollers. This causes the rollers to grip the surfaces of the tape and feed the tape through the opening enabling the tape to adhesively contact the surface and adhere thereto. The tape is cut off at the opening.

A tape dispenser for applying adhesive tape to a substrate surface. The dispenser includes an exterior application surface with an opening therein. A plurality of rotatable cylindrical rollers are mounted within the housing, wherein the surfaces of the rollers coact with each other and the tape surfaces to retain, guide and feed the tape through the tape dispensing opening to the exterior application surface. At least two of the plurality of rollers are opposed rollers that engage the tape surfaces therebetween. The outer surface of at least one of the plurality of rollers protrudes through the opening enabling frictional contact of the roller surface with the substrate surface. When the dispenser is drawn over the surface, the outer surface of the this roller engages and rolls over the substrate surface. It also coacts with the outer surfaces of the other rollers, causing them to grip the tape and feed it through the opening, enabling the adhesive tape to be applied to the substrate surface.

Growing community of inventors

Palm Harbor, FL, United States of America

Robert Steinberger