1785 results about "Virtual keyboard" patented technology

The disclosed System enables a small virtual keyboard on a touch-screen to be used to enter a word by contacting the keyboard on or near the key of the first letter, tracing through or near the key of each letter in sequence, and lifting the stylus from the keyboard in the vicinity of the key of the last letter. The input pattern is matched by scoring it against words in a database which includes an indication of relative frequency. A correctly spelled word is matched even when the input pattern corresponds to an incorrect spelling of a word. Words are ranked according to a score calculated from the weighted distances from each associated key to determined input path points, further weighted by the frequency of use and by other characteristics of the input path. Alternate word choices are presented to the user in a manner to minimize distraction.

There is disclosed an enhanced text entry system which uses word-level analysis to correct inaccuracies automatically in user keystroke entries on reduced-size or virtual keyboards. A method and system are defined which determine one or more alternate textual interpretations of each sequence of inputs detected within a designated auto-correcting region. The actual interaction locations for the keystrokes may occur outside the boundaries of the specific keyboard key regions associated with the actual characters of the word interpretations proposed or offered for selection, where the distance from each interaction location to each corresponding intended character may in general increase with the expected frequency of the intended word in the language or in a particular context. Likewise, in a virtual keyboard system, the keys actuated may differ from the keys actually associated with the letters of the word interpretations. Each such sequence corresponds to a complete word, and the user can easily select the intended word from among the generated interpretations. Additionally, when the system cannot identify a sufficient number of likely word interpretation candidates of the same length as the input sequence, candidates are identified whose initial letters correspond to a likely interpretation of the input sequence.

A method and system of inputting alphabetic text having a virtual keyboard on a touch sensitive screen. The virtual keyboard includes a set of keys where an each letter of alphabet is associated with at least one key. The present invention allows someone to use the virtual keyboard with continuous contact of the touch sensitive screen. The user traces an input pattern for word by starting at or near the first letter in a decided word and then tracing through or near each letter in sequence. The present invention then generates a list of possible words associated with the entered part and presents it to user for selection.

Accordingly, a virtual keypad system for inputting text is provided. A virtual keypad system includes a remote controller having at least one touchpad incorporated therein and divided into a plurality of touch zones. A display device is in data communication with the remote controller and is operable to display a user interface including a keypad, where each key of the keypad is mapped to a touch zone of the touchpad. A prediction module, in response to an operator pressing a given touch zone to select a particular character, performs one or more key prediction methods to predict one or more next plausible keys. A key mapping module remaps the touch zones of the touchpad to the keys of the keypad based on the one or more next plausible keys.

A selective input system and associated method is provided which tracks the motion of a pointing device over a region or area. The pointing device can be a touchpad, a mouse, a pen, or any device capable of providing two or three-dimensional location. The region or area is preferably augmented with a printed or actual keyboard / pad. Alternatively, a representation of the location of the pointing device over a virtual keyboard / pad can be dynamically shown on an associated display. The system identifies selections of items or characters by detecting parameters of motion of the pointing device, such as length of motion, a change in direction, a change in velocity, and or a lack of motion at locations that correspond to features on the keyboard / pad. The input system is preferably coupled to a text disambiguation system such as a T9® or Sloppytype™ system, to improve the accuracy and usability of the input system.

A data entry system is provided using a virtual dynamic keypad having at least four keys, wherein to four of the keys at least substantially all of the letters of a language are distributively assigned and wherein the locations of the four letter keys relating to each other are dynamically defined during the entry of text. A text entry system is also provided using a virtual keypad having at least four keys wherein to four of its keys at least substantially all of the letters of a language are distributively assigned and wherein the locations of the four letter keys relating to each other are dynamically defined based on a calibrating procedure provided by the user. A data entry system is provided using a pointing device providing different pointing directions wherein each of the pointing directions duplicates a key of a predefined virtual keypad model wherein to at least some of its keys substantially all of the letters of a language are distributively assigned.

There is disclosed an enhanced text entry system which uses word-level analysis to correct inaccuracies automatically in user keystroke entries on reduced-size or virtual keyboards. A method and system are defined which determine one or more alternate textual interpretations of each sequence of inputs detected within a designated auto-correcting region. The actual interaction locations for the keystrokes may occur outside the boundaries of the specific keyboard key regions associated with the actual characters of the word interpretations proposed or offered for selection, where the distance from each interaction location to each corresponding intended character may in general increase with the expected frequency of the intended word in the language or in a particular context. Likewise, in a virtual keyboard system, the keys actuated may differ from the keys actually associated with the letters of the word interpretations. Each such sequence corresponds to a complete word, and the user can easily select the intended word from among the generated interpretations. Additionally, when the system cannot identify a sufficient number of likely word interpretation candidates of the same length as the input sequence, candidates are identified whose initial letters correspond to a likely interpretation of the input sequence.

A command pattern recognition system based on a virtual keyboard layout combines pattern recognition with a virtual, graphical, or on-screen keyboard to provide a command control method with relative ease of use. The system allows the user conveniently issue commands on pen-based computing or communication devices. The system supports a very large set of commands, including practically all commands needed for any application. By utilizing shortcut definitions it can work with any existing software without any modification. In addition, the system utilizes various techniques to achieve reliable recognition of a very large gesture vocabulary. Further, the system provides feedback and display methods to help the user effectively use and learn command gestures for commands.

Techniques for adapting a virtual keyboard for multilingual input are disclosed. By way of example, a method of adapting a virtual keyboard for multilingual input includes the steps of detecting an input language and displaying a virtual keyboard corresponding to the input language upon detection of the input language. The identifying step may include automatic identification of an input language, such as by one or more language recognition modules, or it may include manual selection of an input language and activation of at least one language recognition module operative to recognize at least the input language upon selection of the input language.

A smart TV is provided. The smart TV has a network interface, configured to connect the smart TV with a mobile device via a network; and a processing unit, configured to execute a first remote virtual keyboard application for activating a remote virtual keyboard mode of the smart TV; wherein the processing unit further generates an input interface comprising a first virtual keyboard when the smart TV generates an input column in response to an input demand; wherein when the remote virtual keyboard mode of the smart TV is activated and there is the input demand, the processing unit hides the first virtual keyboard without being displayed, and uses the mobile device to replace the hidden first virtual keyboard for accepting input from a user.

A word pattern recognition system based on a virtual keyboard layout combines handwriting recognition with a virtual, graphical, or on-screen keyboard to provide a text input method with relative ease of use. The system allows the user to input text quickly with little or no visual attention from the user. The system supports a very large vocabulary of gesture templates in a lexicon, including practically all words needed for a particular user. In addition, the system utilizes various techniques and methods to achieve reliable recognition of a very large gesture vocabulary. Further, the system provides feedback and display methods to help the user effectively use and learn shorthand gestures for words. Word patterns are recognized independent of gesture scale and location. The present system uses language rules to recognize and connect suffixes with a preceding word, allowing users to break complex words into easily remembered segments.

A “Constrained Predictive Interface” uses predictive constraints to improve accuracy in user interfaces such as soft keyboards, pen interfaces, multi-touch interfaces, 3D gesture interfaces, EMG based interfaces, etc. In various embodiments, the Constrained Predictive Interface allows users to take any desired action at any time by taking into account a likelihood of possible user actions in different contexts to determine intended user actions. For example, to enable a virtual keyboard interface, various embodiments of the Constrained Predictive Interface provide key “sweet spots” as predictive constraints that allow the user to select particular keys regardless of any probability associated with the selected or neighboring keys. In further embodiments, the Constrained Predictive Interface provides hit target resizing via various piecewise constant touch models in combination with various predictive constraints. In general, hit target resizing provides dynamic real-time virtual resizing of one or more particular keys based on various probabilistic criteria.

A touchpad input controller receives user input relating to a display. The input controller includes a facing surface that faces a user when the controller is held in the user's hand or hands during use, and one or more non-facing surfaces that each faces away from the user when the controller is held the user's hand or hands during use. At least one non-facing surface includes a touchpad input area that is positioned to be accessed by at least one user finger for receiving user input. The facing surface including a display on which the results of user input received at the touchpad input area is displayed. The touchpad input area includes a mapping to a virtual keyboard layout for receiving keyboard-equivalent input from the user at the touchpad input area.

A virtual keyboard displayed on a touch sensitive screen allows a user to do touch-typing thereon to enter textual data into a computer. The keyboard image has a standard key layout for typewriting, and the keys are sized to allow the fingers of the user to take the positions necessary for “ten-finger” touch-typing in the standard fashion. The virtual keyboard image is semi-transparently displayed over on a background image, with the individual keys shown with shaded edges so that they can be easily distinguished from features in the background image. When a key is touched, a sound is generated. The sound generated when the touch is away from a target portion of the key is different from the sound generated when the touch is on or adjacent to the target portion of the key, thereby providing audio feedback to enable the user to adjust finger positions to maintain proper alignment with the virtual keys.

There is disclosed an enhanced text entry system which uses word-level analysis to correct inaccuracies automatically in user keystroke entries on reduced-size or virtual keyboards. A method and system are defined which determine one or more alternate textual interpretations of each sequence of inputs detected within a designated auto-correcting region. The actual interaction locations for the keystrokes may occur outside the boundaries of the specific keyboard key regions associated with the actual characters of the word interpretations proposed or offered for selection, where the distance from each interaction location to each corresponding intended character may in general increase with the expected frequency of the intended word in the language or in a particular context. Likewise, in a virtual keyboard system, the keys actuated may differ from the keys actually associated with the letters of the word interpretations. Each such sequence corresponds to a complete word, and the user can easily select the intended word from among the generated interpretations. Additionally, when the system cannot identify a sufficient number of likely word interpretation candidates of the same length as the input sequence, candidates are identified whose initial letters correspond to a likely interpretation of the input sequence.

A command pattern recognition system based on a virtual keyboard layout combines pattern recognition with a virtual, graphical, or on-screen keyboard to provide a command control method with relative ease of use. The system allows the user conveniently issue commands on pen-based computing or communication devices. The system supports a very large set of commands, including practically all commands needed for any application. By utilizing shortcut definitions it can work with any existing software without any modification. In addition, the system utilizes various techniques to achieve reliable recognition of a very large gesture vocabulary. Further, the system provides feedback and display methods to help the user effectively use and learn command gestures for commands.

A reduced virtual keyboard system for text input on electronic devices is disclosed. Text input is performed by creating a tracing trajectory. Dynamic prediction solutions are created during the tracing process, thus avoiding the need for a user to complete the entire word trajectory. The system also allows a mixture of tapping actions and sliding motions for the same word. The system may comprise a Long Words Dictionary database having first letters corresponding to predetermined keys of the keyboard. Alternatively, the system uses a Dictionary and a database management tool to find long words.

A selective input system and associated method is provided which tracks the motion of a pointing device over a region or area. The pointing device can be a touchpad, a mouse, a pen, or any device capable of providing two or three-dimensional location. The region or area is preferably augmented with a printed or actual keyboard / pad. Alternatively, a representation of the location of the pointing device over a virtual keyboard / pad can be dynamically shown on an associated display. The system identifies selections of items or characters by detecting parameters of motion of the pointing device, such as length of motion, a change in direction, a change in velocity, and or a lack of motion at locations that correspond to features on the keyboard / pad. The input system is preferably coupled to a text disambiguation system such as a T9® or Sloppytype™ system, to improve the accuracy and usability of the input system.

A system augments stylus keyboarding with shorthand gesturing. The system defines a shorthand symbol for each word according to its movement pattern on an optimized stylus keyboard. The system recognizes word patterns by identifying an input as a stroke, and then matching the stroke to a stored list of word patterns. The system then generates and displays the matched word to the user.

Disclosed is a “keyboard overlay” that sits on top of a touch-sensitive display screen of a computing device. After aligning the overlay on the display screen, the user types on the overlay. When the user presses a key on the overlay, the pressure is transmitted to the display screen below. That pressure is registered by the display screen as a touch. The keyboard overlay is formed to provide tactile finger-position feedback so that a user can keep his fingers oriented properly over the keyboard. The overlay may be opaque with keycap information displayed in the key areas. The overlay may be transparent, allowing a user to see a virtual keyboard painted on the display screen below. The computing device can detect the presence and type of an overlay. Applications may respond differently to different types of overlays. Different applications may be invoked depending upon the type of overlay detected.

A user input mechanism is provided that allows a user to enter words as gestures on a virtual keyboard presented on the display device. The user input mechanism combines two existing and prevalent forms of user input: cursive handwriting and keyboard input. A familiar keyboard layout is presented on the display. A user then may place an implement, such as a stylus or the user's finger, in contact with the display. Typically, the implement will first touch the screen at a position of a first character in a word. The user then may move the implement along the surface of the display from character to character, spelling out a word.

A handheld electronic device and an operation method thereof are provided. The electronic device includes a virtual keyboard and a touch screen. The virtual keyboard includes a plurality of key sections. The touch screen has an inputting area for showing one of the key sections. When the touch screen detects a sliding movement from a user in the inputting area, the inputting area shows another one of the key sections without showing the other ones of the key sections.

A method and system for enhancing interaction of a virtual keyboard in a small touch screen. The virtual keyboard includes multiple virtual keys and can be divided into more than one block. Proximity sensors associated with the touch screen can sense the 3D position of a physical selector (e.g., user's finger or stylus) before it contacts the touch screen. When the physical selector is close enough to the touch screen, a block of the virtual keyboard or group of characters nearest the physical selector can be enlarged for selection by physical contact of the physical selector with the touch screen. The virtual keyboard can also be enlarged according to the position of the physical selector in a continual manner, wherein the extent of the enlargement is proportional to the proximity of the physical selector to the screen. Further, a character immediately under the physical selector can also be enlarged in order to determine intent with high reliability.

A mobile terminal displaying a virtual keyboard obtains a direction in which a mobile terminal is inclined and displays a modified virtual keyboard in correspondence to the obtained inclination direction. The virtual keyboard comprises a plurality of virtual keyboard regions. The mobile terminal displays the virtual keyboard in which at least one of the plurality of virtual keyboard regions is enlarged and other non-enlarged virtual keyboard regions are reduced based on the obtained inclination direction.

The present invention relates to a handheld computerized device with a bit mapped display screen on the front panel, and a touchpad installed on the back panel. More particularly, the invention relates to a method and graphical user interface that enable the user to see the user's finger position and motion from behind the device superimposed upon a virtual keyboard layout on the front panel. This allows the user to use a touchpad keypad on the back of the device to input keystrokes and mouse actions, and these will be reflected on the display screen on the front of the handheld computerized device as “virtual fingers” or equivalent.