摘要:
Disclosed is a Braille display device. The device supports an array of individual Braille cells with corresponding tactile pins. The pins can be selectively lifted by way of reeds to generate Braille characters that can be felt by the user. The Braille characters can correspond to visible characters, such as characters on a computer screen. The display is refreshable to allow for the sequential display of lines, paragraphs or pages. In accordance with the disclosure, the Braille cells are constructed in a manner that minimizes manufacturing costs and that also permits the size of the display to be greatly reduced.
摘要:
A computer program for rendering a magnified graphic user interface (GUI) establishes a first magnification level for the graphic user interface and a second magnification level for a pointer. It displays the magnified GUI at the first magnification level and monitors application program interface messaging for a call for a system pointer identifier. It intercepts this call and scales the pointing indicia not to the magnification level of the GUI, but to the second magnification level for the pointer. The pointer is then displayed to an end user of the computer system at a magnification level that is different from the magnification level of the GUI. Thus, the invention provides for independent magnification of the graphic user interface from the mouse cursor or caret.
摘要:
A method of magnifying text across a computer operating system platform, the method including the steps of loading a background text viewer process on a computer operating system, the background text viewer process having access to internal operating system messaging relating to text sent to a graphics display driver for presentation to an end-user on a GUI, drawing a text viewer on a portion of the GUI whereby the text viewer and a third party application that displays text are shown on the GUI concurrently, intercepting text originating from the third party application and sent to the graphics display driver, the interception performed by the background text viewer process, selecting a substring of intercepted text associated with an end-user focus on the third party application and displaying the substring on the text viewer according to end-user defined settings.
摘要:
Disclosed is a magnifier for use by blind or low vision users. The magnifier includes a camera, such as a CMOS image sensor, that displays enlarged images upon a screen for easy viewing. The magnifier further includes a handle that is pivotally interconnected to a housing to allow for handheld use in a variety of different configurations.
摘要:
A method of magnifying text across a computer operating system platform, the method including the steps of loading a background text viewer process on a computer operating system, the background text viewer process having access to internal operating system messaging relating to text sent to a graphics display driver for presentation to an end-user on a GUI, drawing a text viewer on a portion of the GUI whereby the text viewer and a third party application that displays text are shown on the GUI concurrently, intercepting text originating from the third party application and sent to the graphics display driver, the interception performed by the background text viewer process, selecting a substring of intercepted text associated with an end-user focus on the third party application and displaying the substring on the text viewer according to end-user defined settings.
摘要:
A method of rendering magnified pointing indicia including the steps of monitoring application program interface messaging and intercepting a call for a unique system pointer identifier. A stored collection of predefined vector shapes is accessed and from that a predefined vector shape from the collection is selected which is correlated to the current system pointer identifier. A convergence point may be established for maximum pointing indicia magnification in addition to a user-selectable desktop magnification level. The vector shape is scaled in synchronization with the desktop magnification level up to the convergence point whereby the vector shape is no longer scaled up once the convergence point is reached. The scaled vector shape is rasterized and displayed to an end user operating a computer.
摘要:
A method of modifying individual graphic user interface controls according to predefined settings including the steps of identifying at least one graphic user interface control object with a plurality of states and/or event handlers, assigning a user-selectable visual modification to the control object, associating the visual modification with a state of the control object, saving the assignment to a configuration file and applying the visual modification to the control object upon display of the control object in the associated state or upon firing of the associated event handler.
摘要:
A screen reader software product feature referred to as a custom summary view, or custom summary, has been developed. The custom summary feature solves the major problem faced by blind users when working with large sets of data. That problem occurs as a result of an inefficiency of gleaning important data from within these larger sets. The custom summary provides the ability to gather such data into a summary that can be navigated easily. This ease of navigation greatly levels the playing field in the competitive workplace for blind workers and students alike. Also taught is a feature, referred to as a multiple region support, which allows users to define blocks of contiguous cells containing data as “regions” when a document such as a spreadsheet is displayed by a screen reader. Regions can either be named by the user or be defined simply by the top left and bottom right cell addresses that represent the boundaries of the block of contiguous cells containing data.