820 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.

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.

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 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 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.

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 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.

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.

A system, method and computer-readable medium that previews words and commands recognized by a continuous stroke recognizer based on input into a virtual keyboard layout is presented. The system and method allows a user to see the word that will be recognized or output before the user commits the continuous stroke input to the system. Further, after recognition and output, the system presents the recognized output word and the closest word candidates in a correction display integrated with the virtual keyboard layout. Among other things, the user is provided with options to change the current output word by selecting another word candidate on the correction display, and to delete the current output word by selecting the representation of the current output word on the correction display.

Providing a virtual keyboard interaction is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with a virtual keyboard. A virtual keyboard interaction is provided based at least in part on the indicator identifying the force intensity of the touch input.

A text input method is described for an electronic apparatus having a user interface with a touch-sensitive display screen. A virtual keyboard is presentable on the display screen so as to facilitate text input for a user by pointing at different virtual keys of the virtual keyboard. Word completion functionality is provided for predicting full word candidates for partial word inputs made by the user on the virtual keyboard. The method involves receiving a partial word input from said user and deriving a set of full word candidates using the word completion functionality, each of the full word candidates in said set having a prefix and a suffix, wherein the prefix corresponds to said partial word input. The suffices for at least a sub set of the full word candidates are presented in a predetermined area on the display screen, wherein each of the presented suffices is made selectable for the user.

Devices and methods are disclosed which relate to improving the efficiency of text input by dynamically generating a visually assistive virtual keyboard. Exemplary variations display a soft keyboard on a touchscreen of a text-entry device. The touchscreen works with the soft keyboard as a form of text input. Keyboard logic on the text-entry device is programmed to change the visual appearance of each key within the soft keyboard based on the prior entry. The keyboard logic assigns a prediction value to each key based on a statistical probability that the key will be entered next. The touchscreen displays a visually enhanced keyboard based on these prediction values. Enhancements include resizing keys relative to their prediction value, rearranging the keys a distance from the previous key entered inverse to its prediction value, etc.

Systems and methods for gesture repetition that is easy to repeat quickly. A user is able to quickly repeat any activation of a key, including any of the alternate, overloaded functions that are associated with the key. In addition, by appropriately defining the gesture, a large number of these repetitions can be quickly generated. These repeated activations can be generated much faster than a key can be repeatedly tapped with sufficient accuracy, and far faster than an alternative function can be repeatedly generated when each repetition would require again waiting past an initial time threshold. Furthermore, the number of repetitions can be easily and precisely controlled by the user. As the desired number of repetitions is approached, the user simply begins to repeat the gesture at a slower pace until precisely the desired number of repetitions is achieved.

The invention relates to a method for realizing a virtual keyboard by using a capacitive touch screen. Whether a user strikes a virtual button is judged by detecting and judging the induction pressure of the touched virtual button by a touched object is greater than or equal to a preset induction pressure; if the induction pressure of the touched virtual button by a touched object is greater than or equal to a preset induction pressure, corresponding strike confirmation command of the touched virtual button is sent to a host computer, and the control touch screen of the host computer displays the corresponding characters of the virtual button and/or carries out a key command. The method for realizing a virtual keyboard by using a capacitive touch screen provided by the invention can efficiently avoid error touch actions so that the real intention of the user is understood by identifying and judging the induction pressure of the touch screen by the touched object (finger, touch control pen). Multi-point touch technology is used so that multiple points can be simultaneously identified and the combination operation of multiple buttons can be realized by using the virtual keyboard.

A virtual input apparatus uses an array of transducers in contact with a sounding surface to detect a location of a sound or vibration transmitted by the sounding surface. A signal processor connected to an output of the transducer array provides data corresponding to a determined location of the vibration detected by the array. An electronic device includes a virtual keyboard that includes the array of transducers and device electronics. A method of entering data for the electronic device using the virtual keyboard includes creating a sound with a sounding surface that represents data to be entered into the electronic device by a user. The method further includes determining a point of origin of the created sound and mapping the determined point of origin into the data.

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 method and apparatus which efficiently inputs characters through a touch screen in a mobile communication terminal is provided. The method, for inputting characters through a touch screen in a mobile communication terminal, includes displaying a virtual keyboard including a plurality of keyboard keys on the touch screen in response to a character input request, inputting an input signal through the touch screen; and inputting a corresponding character, if the input signal is a click signal. If the input signal is a drag signal, the virtual keyboard is moved. Therefore, the character input method and apparatus display a virtual keyboard that is greater than the touch screen and thus reduce the user character input errors.

An input device having touched position detecting means for outputting a signal indicating a touched position during a period of time of touch when the touched position detecting means is touched, wherein a character and a symbol are inputted to be displayed on a display screen. Provided are: a virtual keyboard in which each virtual key corresponding to a plurality of characters or symbols is arranged corresponding to each divided area on the touched position detecting means; means for outputting, during the period of time of touch, a code signal indicating a character or a symbol of a virtual key corresponding to an area including the touched position; means for temporarily displaying on the display screen a character or a symbol of the outputted code signal; and means for determinately displaying the character or the symbol on the display screen when the code signal has disappeared.

A system and method for supporting predictive text entry in software applications by sharing a common, predictive, software text-entry widget within a consumer device across multiple software applications and input contexts. The method comprises: a software application invoking an instance of a text-entry widget in a particular input context, the application optionally providing the widget a description of allowed symbols and a dictionary of expected symbol strings associated with the current context, the widget modifying a virtual keyboard display and predictive algorithm data according to the allowed symbols and dictionary, the user entering text via the widget, the widget returning the entered text to the application, and the application optionally including information derived from entered text in the associated dictionary to enhance the predictive capability of the widget on future invocations.

A device, which may have a touchscreen display, and methods for its operation are provided using a graphical user interface and an overlay user input interface such as a virtual keyboard. The graphical user interface may include one or more user interface elements displayed in a first region of the display that are actuatable to invoke a corresponding function. When the virtual keyboard is invoked for display in the same region, the underlying graphical user interface is redrawn with a further user interface element corresponding to at least one of the user interface elements previously displayed in the first region, so that the further user interface element is actuatable to invoke a command to carry out the corresponding function. In another embodiment, the virtual keyboard may be modified instead to provide an action key corresponding to a function related to an application executing on the device.

In some remote application execution environments, a client device (e.g., to which application output is sent and where user interaction is performed) may include native control elements for touch input such as virtual keyboards, virtual pickers and the like. When the server device detects an editable/control field of a remoted application receiving focus, the server may instruct the client to activate a native control element for user interaction. The client may determine the manner in which to modify an application display to resolve potential display conflicts. For example, a native control element may obscure or hide potions of the remoted application on the client display. Modifying the application display may include panning the display, zooming into or out of portions of the display, adapting the display for scrolling and the like. The remote computing device may also transmit values for populating a native control element.

A method, apparatus and computer-usable medium for implementing a virtual keyboard for use with small input devices. A circular keyboard can be graphically displayed, in response to a user input by a user via a small input device. A circular and centrally located key can be graphically located and displayed within the center of the circular keyboard, wherein character keys radiate outward from the centrally located key (i.e., the “central key”). Character keys that are most commonly utilized by the user are preferably located closed to the circular and centrally located key within the circular keyboard. Character keys least commonly utilized by the user are preferably located at the edges of the keyboard, thereby permitting the circular keyboard to function as a self-adapting virtual keyboard for use with small input devices based on the usage of the keyboard by the user.

A mobile electronic device with a virtual input device. The virtual input device includes an optical sensor for detecting movement of a user's fingers over a work surface and an acoustic or vibration sensor, for detecting an impact of the user's fingers on the work surface. A processor, coupled to the optical sensor and to the acoustic sensor, processes the detected signals as input for the electronic device. The user's fingers can be shown on the display overlaid by a virtual mask. The virtual mask may show a keyboard of menu items.

The invention discloses a mobile terminal and a design method of an operation and control system thereof, the mobile terminal comprises a machine body and an embedded central processing unit, wherein a back surface touch panel is mounted on the back surface of the machine body, and three-state buttons are respectively mounted in lower middle positions on two sides of the machine body; and the embedded central processing unit is the embedded central processing unit equipped with the operation and control system including finger action semantic recognition, a virtual keyboard and an input method. The design method comprises the steps of designing the shape of the machine body, designing the finger action semantic recognition under the support of an algorithm of the operation and control system and designing the virtual keyboard and the input method in the operation and control system. The invention designs the back surface touch type mobile terminal with natural operation and control concept, thereby realizing the purposes of maximizing the liberation of a front surface touch screen, easily realizing operation and control, in particular to text input by single hand, improving the intelligent operation and control based on full combination of system software algorithm, software and hardware, leading the operation to cater for habitual thinking and natural reaction of a user, and being suitable for long-time use.

A method of providing an interface comprising receiving contact information indicative of points of contact between fingers of at least one hand and a surface. The method further comprising mapping onto the surface a plurality of interface elements each corresponding to a key on a keyboard, each element being assigned to one of a plurality of groups, each group having an associated one of the fingers for activation of the elements in the group, wherein each group is mapped to the surface in accordance with contact information for the associated finger. Another aspect of the inventive include recurrently receiving the contact information and recurrently mapping each group to the surface in accordance with the contact information for the associated finger so that the group tracks the resting position of the associated finger.

A display device includes a touch screen having a display surface that displays images. The touch screen outputs a signal indicating a position on the display surface that has been touched. The display device also includes a first sensor that senses a position of an object relative to the display surface. The display device further includes a controller that generates a virtual keyboard image including a plurality of virtual keys for display on the display surface. The controller generates a left side portion and a right side portion of the virtual keyboard image, and chooses, as a display portion, one of the left side portion and the right side portion of the virtual keyboard image corresponding to the position of the object relative to the display surface as sensed by the first sensor. The controller controls the touch screen to display the display portion on the display surface.

A device having a display and a display controller. The display controller is configured to vary a layout of a displayed keyboard such that a biomechanical relationship between the device and a user of the device is changed.