Blackberry Corporation

Christie Digital Systems Usa, Inc.

Peter Anthony Van Eerd

Sean David Drew Wilson

James Clement Ehrismann

Kevin R Moule

Daniel Thomson Urquhart

Matthew Post

Andrew Douglas Dennison

Richard Jeffrey Kehres

Martin George Albert Guthrie

Chad Faragher

Derek Scott

Carl Edward Kilgour Pacey

Nick Wasilka

Ian Chadwyck Faragher

Nicholas Jankovic

Ryan Thomas Morris

Colin Bartlett Yardley

James C Walkoski

Igor Krivoshlykov

Christopher John Gordon

Simon Thomson

Anda Achimescu

Huck Kim

Carl Edward Pacey

Kevin Moule

Nicholas David Jankovic

Scott Duncan Inglis

Jianfeng Weng

A method is provided of parallel gathering of structured light patterns in multi-projector systems, comprising sequentially projecting images from each of a plurality of projectors on a surface; capturing the sequentially projected images on the surface via at least one sensing device; creating one or more sensing device/projector masks for limiting the images projected by each of the plurality of projectors to portions that do not conflict with images projected by other ones of the plurality of projectors; using the one or more projector masks to create a graph of projectors whose projections conflict; and creating from the graph a plurality of gather groups wherein projectors within a group do not conflict with each other for simultaneously gathering structured light patterns from projectors in each of the gather groups.

Method of image gathering in multi-projector systems

A method of calibrating a display system, the method comprising: displaying a test pattern including a plurality of blobs; detecting one or more base blobs in the displayed test pattern; identifying, based on the detected base blobs, patches of the test pattern, wherein each patch comprises one of the base blobs and a subset of additional blobs detected in the displayed test pattern; determining a patch location for at least one patch within the test pattern based on the subset of the additional blobs in the patch to determine a blob location for at least one detected blob; determining a calibration parameter for the display system based on the blob location and a detected attribute of the at least one detected blob; and calibrating the projector using the calibration parameter.

Systems and methods for calibrating display systems

A method of aligning a plurality of color channels of a projector is provided. The method includes: for each color channel, (i) projecting test pattern on a surface; (ii) capturing image of the test pattern generated on the surface; and (iii) adding the captured image to an image set. Once the captured images for each color channel are added to an image set, identifying a reference position based on the image set. This is followed by processing the image set to estimate a divergence of the respective test patterns for each color channel with respect to the reference position, followed by computing a corrective function for each color channel and applying the respective corrective function to each color channel to align the color channel to the reference position.

Method and device for aligning color channels

A system and method for digital black level blending is provided. The system comprises: projectors located to project respective projector images overlapping in overlap regions; at least one sensor configured to acquire digital images of at least portions of the plurality of projector images; and a computing device configured to, for each given projector: determine, using the at least one sensor, respective correspondences between projected points of a given projector image and respective points of respective image modulators of other projectors of the projectors, the correspondences representing the respective points of the respective image modulators of the other projectors that correspond to overlap regions; determine respective brightness of the overlap regions; and, control pixels of an image modulator of the projector, and each of the respective image modulators, at least adjacent edge pixels corresponding to overlap region edges, to increase brightness in corresponding projector image regions using the respective brightness.

System and method for digital black level blending

A method, system, and a computer readable medium for screen correction is provided. The system includes a memory storage unit for storing model content, a screen having screen parameters, an input device for receiving the screen parameters, a correction engine, and a projector. The method involves storing model content on a memory storage unit, receiving screen parameters, generating screen content, and projection at least a portion of the screen content onto the screen. The computer readable medium encoded with codes for directing a processor to carry out the method.

Method and system for screen correction

A system and method to exchange data among applications are disclosed. A request for information that includes private information is received from a user application. A respective indicator for each private information field within the requested information is determined. A protected set of information is provided to the user application. The protected set of information comprises the requested information with the respective indicator replacing the private information in each private information field of the requested information. At least one indicator is received from the user application. The original data corresponding to the received at least one indicator is determined.

Private data exchange

An example method includes displaying a first control and a second control, wherein a touch associated with the controls results in moving an indicator through information in a first direction and in a second direction, in response to the detecting a first touch associated with the first control, moving the indicator in the first direction, and in response to detecting a second touch associated with the second control, moving the indicator in the first direction.

Touch-sensitive display method and apparatus

An example method includes associating a first area of a non-display area of a touch-sensitive display with a first control, wherein a touch associated with the first control results in moving an indicator through the information in a first direction and in a second direction. The method may also include associating a second area of the non-display area with a second control, wherein a touch associated with the second control results in moving the indicator through the information in the first direction and in the second direction. The method may also include detecting a first touch associated with the first control, in response to detecting the first touch, moving the indicator in the first direction, detecting a second touch associated with the second control, and in response to detecting the second touch, moving the indicator in the first direction.

Methods and systems which may implement buffer swapping are provided. The methods include rendering, onto screen locations of a display screen, data from a memory having a first buffer and a second buffer, each buffer having respective buffer memory locations which correspond to the screen locations of the display screen. The methods can include: rendering first data from the first buffer onto the display screen; writing, to the second buffer, second data based on at least some of the first data from the first buffer by performing at least one of transforming at least some first data and changing corresponding screen locations of at least some first data from the first buffer, by writing at most once to each buffer memory location of the second buffer; and rendering the second data from the second buffer onto the display screen.

Method and system for displaying using buffer swapping

A method includes detecting movement of a touch on a touch-sensitive display of an electronic device from a first touch location to a second touch location. When the distance between the first touch location and the second touch location meets a first threshold, the second touch location is reported to an application layer of the electronic device. After the first threshold is met, a third touch location is reported to the application layer when movement of the touch from the second touch location to the third touch location is detected and the distance between the second touch location and the third touch location meets a second threshold.

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Guelph, Canada

Peter Anthony Van Eerd