Abstract: Systems and methods allow the use of algebra to optimize several queries at once by algebraically breaking them into pieces, interleaving them in the most efficient way and then computing the queries together. For instance, a user or application may have many queries to process. A computing device may handle each query sequentially. However, if the computing device handled the queries simultaneously and if they are presented at once, there are ways to algebraically optimize them together by interleaving the tasks required to execute each one and complete the entire batch more efficiently.

Abstract: A method includes detecting a query gesture and actuating, in response to the query gesture, an actuator to provide tactile feedback including information associated with the query gesture. The query gesture may be detected on a touch-sensitive display of a portable electronic device.

Abstract: A computer-implemented mapping method comprises determining a fixed reference point, displaying a static-scale map on a display screen of a computing device such that the map always includes the fixed reference point, and displaying a graphical discontinuity indicator on the map to represent a discontinuity in the map, the graphical discontinuity indicator dividing the map into a first map area surrounding the fixed reference point and a second map area that is geographically spaced apart from the first map area.

Abstract: The systems, methods, devices, and non-transitory media of the various embodiments enable query execution plan graphs to be compared to determine whether all or portions of two or more queries define data sets that are structurally equivalent. Two data sets may be structurally equivalent when each data set may be composed with a bijective relation that yields the other. In the various embodiments, when all or a portion of a first query that has been previously run defines a data set that is structurally equivalent to a data set defined by all or a portion of a second query that is to be run, the structure preserving transform may be applied to the corresponding portion of the second query to transform that portion of the second query into the corresponding portion of the first query, thereby allowing the results from previously running the first query to be reused.

Abstract: A method and system are provided for controlling the display of an mobile device by: capturing an image using a camera device of the mobile device, the camera device being directed in a same direction as a display of the mobile device, the image comprising one or more subjects (e.g. users or other humans seen in the image); determining a point of regard in the image for at least one of the one or more subjects, the point of regard being indicative of an area on the display at which a gaze of the corresponding subject is directed; determining, based on the point of regard, an instruction for controlling the display; and controlling the display according to the instruction, wherein controlling the display includes reducing visibility of at least one portion of what is displayed on the display.

Abstract: A method comprising receiving an input of a character from a virtual keyboard rendered on a display, and displaying the input character left of a cursor located within a ticker rendered on the display proximate to the virtual keyboard, wherein the cursor has a set position located towards a centre of the ticker.

Abstract: A method that includes receiving an input, determining, by the processor, a likelihood that a predicted string associated with the received input matches an intended input string, where the determination is a function of at least one of a length of the predicted string and a typing speed associated with the received input, and displaying the predicted string.

Abstract: A method includes displaying on a display at least one selection option comprising a first selection option and detecting a touch or cursor on the display. Tactile feedback having a first characteristic is provided when the touch or cursor is at a first location associated with the first selection option. Tactile feedback having a second characteristic is provided when the touch or cursor is detected at a second location not associated with the first selection option.

Abstract: A method of controlling a portable electronic device includes displaying a portion of information on a touch-sensitive display; detecting a touch on the touch-sensitive display at a touch location associated with the information; detecting a tilt of the portable electronic device; and in response to detecting the tilt, scrolling the information.

Abstract: A method includes displaying information associated with a first application on a touch-sensitive display of an electronic device. A gesture is detected on the touch-sensitive display, which gesture indicates a request to display information associated with a second application. At least part of the information associated with the second application is displayed without opening the second application.

Abstract: A portable electronic device comprising a display, an actuator actuatable to impart a force on the display, an input device moveable from a first position in which the input device is disengaged from the display to a second position in which the input device is engaged with the display, wherein when the input device is moved to the second position, the actuator is actuated to provide tactile feedback to the input device through the display.

Abstract: System and method for informing a user of functions or characters associated with keys on a mobile communications device includes a keyboard operable to input dual-tone multi-frequency (DTMF) codes and a display screen operable to display information. The display screen is also operable to display a virtual representation of at least a portion of the keyboard. The virtual representation includes help information on one or more virtually represented keys of the keyboard. This help information informs a user of an associated telephone function or character of one or more keys that are virtually represented on the display.

Abstract: A method includes detecting a query gesture and actuating, in response to the query gesture, an actuator to provide tactile feedback including information associated with the query gesture. The query gesture may be detected on a touch-sensitive display of a portable electronic device.

Abstract: A method includes displaying on a display at least one selection option comprising a first selection option and detecting a touch or cursor on the display. Tactile feedback having a first characteristic is provided when the touch or cursor is at a first location associated with the first selection option. Tactile feedback having a second characteristic is provided when the touch or cursor is detected at a second location not associated with the first selection option.

Abstract: Methods and devices for storing content are described. In one example embodiment, a method includes: displaying, on a display of an electronic device, a plurality of selectable content classification options for classifying a content item, the selectable content classification options including a selectable option to classify the content item as an action item and a selectable option to classify the content item as an archive; receiving, via an input interface associated with the electronic device, a selection of one of the content classification options; and storing the content item in accordance with the selected content classification option.

Abstract: An authentication scheme in which an instance of a designated element is shifted to proximity with a designated target to gain access a device may be enhanced by creating conditions that allow for either the designated element or the designated target to be different for each instance of authentication. In one embodiment, a secondary display portion may be used to provide an indication of a dynamic designated element. In another embodiment, a secondary display portion, in combination with a tertiary display portion, may be used to provide an indication of a dynamic designated target.

Abstract: An apparatus has a first housing and a second housing. By one approach at least the second housing has at least one exterior edge configured as a pivot surface. The first housing includes at least a first magnet and the second housing includes at least a second magnet that is disposed proximal to the aforementioned pivot surface. So configured, the first and second magnet interact with one another and thereby serve as a magnetic connector such that the first housing pivots with respect to the second housing about the pivot surface. By one approach, the first and second housing do not pivotally connect to one another via a mechanical connector.

Abstract: A method includes detecting a query gesture and actuating, in response to the query gesture, an actuator to provide tactile feedback including information associated with the query gesture. The query gesture may be detected on a touch-sensitive display of a portable electronic device.

Abstract: A method for processing input from a keyboard of a hand-held computing device includes receiving a plurality of key input events and, from the plurality of key input events, determining whether there is a double selection event corresponding to a specified key from the keyboard. Further, the method includes, when it is determined that there is the double selection event corresponding to the specified key, determining a key selection offset between a first and second key selection action of the double selection. The method also includes deciding whether the key selection offset is substantially equal to or greater than a predetermined threshold and, when it is decided that the key selection offset is substantially equal to or greater than the predetermined threshold, using at least a first key as key input of the double selection event. The first key and the specified key are different.

Abstract: The described embodiments relate generally to systems and methods for providing direct and indirect navigation modes on mobile devices comprising a touch screen display based on a determined characteristic of the mobile device. In example embodiments, upon detecting a first characteristic, touch screen input is interpreted as direct navigation input. Upon detecting that the characteristic of the mobile device has changed, touch screen input may be interpreted as indirect navigation input. The touch screen display of the mobile device may also be reconfigured as a result of determining the change in the characteristic of the mobile device.