Method and apparatus to reduce display lag of soft keyboard presses

Abstract

A method of indicating a selected at least one of keys on a keyboard of a display device, the keyboard having a layout including a plurality of keys, the method including identifying the selected at least one of the keys based on a location of the selected at least one of the keys on the keyboard of the display device, updating a rendered video frame with a stored image of the selected at least one of the keys to generate an updated video frame indicating the selection of the at least one of the keys for displaying by the display device, the stored image of the selected at least one of the keys corresponding to the selected at least one of the keys, and while another video frame indicating the selection of the at least one of the keys is being rendered, displaying the updated video frame by the display device.

Description

[0001] Cross References to Related Applications

[0002] This application claims priority to and the benefit of U.S. Patent Application No. 61 / 843,890, filed July 8, 2013, and U.S. Patent Application No. 14 / 303,457, filed June 12, 2014, the entire contents of which are incorporated herein by reference . technical field

[0003] Embodiments of the invention relate to a data processing device for displaying a virtual keyboard. Background technique

[0004] In recent years, with the increased popularity of personal mobile devices such as mobile phones, tablet computers, laptop computers, etc., touch screen devices have become commonplace. In addition to portable devices, touchscreens are also used in industries such as automobiles and in locations such as information kiosks, where keyboard and mouse systems do not allow users to quickly, intuitively or accurately interact with the contents of the display.

[0005] Touch screen displays recognize user input, for example, by se...

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