Patent application number | Description | Published |
20140201145 | CONFLICT RESOLUTION, RETRY CONDITION MANAGEMENT, AND HANDLING OF PROBLEM FILES FOR THE SYNCHRONIZATION CLIENT TO A CLOUD-BASED PLATFORM - Embodiments of the present disclosure include systems and methods of conflict resolution, retry condition management and/or handling of problem files in the synchronization architecture of the cloud-based platform. One embodiment of the disclosed technology detects conflicts between incompatible changes made on opposite file systems based on file system sync results when executing a sync event on the file system. In one embodiment, the disclosed technology applies self-healing strategies when unexpected failures occur. For example, if a synchronization action fails repeatedly, an external action (e.g., from user, file system, etc.) can return the system back to a consistent state again. | 07-17-2014 |
20140337291 | TOP DOWN DELETE OR UNSYNCHRONIZATION ON DELETE OF AND DEPICTION OF ITEM SYNCHRONIZATION WITH A SYNCHRONIZATION CLIENT TO A CLOUD-BASED PLATFORM - Embodiments of the present disclosure include systems and methods to facilitate top down delete or un-synchronization on delete of a synchronization client to a cloud-based platform. The disclosed technology innovates the mechanism the synchronization client processes local deletes so that instead of synchronizing the delete of each individual item across to the cloud-based platform, it can accumulate the individual item deletes into a top-level folder delete and that top-level folder delete can be what is communicated across to the cloud-based platform. Embodiments of the present disclosure also include systems and methods for depicting item synchronization between a local and cloud based platform/service (e.g. the Box service). In some embodiments the system can identify items that cannot be synchronized between the local and cloud based platform/service (e.g., cloud based collaboration or storage platform/service). The system can further indicate reasons for the inability to synchronize and can offer corrective action. | 11-13-2014 |
20140372376 | SYSTEMS AND METHODS FOR SYNCHRONIZATION EVENT BUILDING AND/OR COLLAPSING BY A SYNCHRONIZATION COMPONENT OF A CLOUD-BASED PLATFORM - Techniques for monitoring local and/or remote file systems by a synchronization component (e.g., client/server) of a cloud-based platform are disclosed. In some embodiments, a method of building synchronization events by a synchronization component (e.g., a synchronization server/client) includes obtaining a set of items that have been changed and their new states and retrieving last known states of the set of items that are stored in a reference snapshot inside a filesystem scanner. The method further includes generating differences between the new states and the last known states of the set of items as item changes and utilizing information provided by the item changes to translate the item changes into synchronization events for execution on the opposing file system. A method of handling failed synchronization events by a synchronization component of the cloud-based platform by collapsing a subsequent event with the failed synchronization event is also disclosed. | 12-18-2014 |
20140379647 | MAINTAINING AND UPDATING FILE SYSTEM SHADOWS ON A LOCAL DEVICE BY A SYNCHRONIZATION CLIENT OF A CLOUD-BASED PLATFORM - Systems and methods for maintaining and updating file system shadows by a synchronization client of a cloud-based platform. In some embodiments, an executor of the synchronization client can execute an action on an item in the local file system which changes the state of the item from an old state to a new state. The synchronization client updates the file system shadows with the new state of the item via an interface to facilitate generation of a synchronization event for the change to the item, that would otherwise go undetected if the change to the item was immediately reversed. In some embodiments, methods for providing shadow consistency and enhancing concurrent access to shadows are implemented by the synchronization client in maintaining and updating the file system shadows. | 12-25-2014 |
20150339113 | IDENTIFICATION AND HANDLING OF ITEMS TO BE IGNORED FOR SYNCHRONIZATION WITH A CLOUD-BASED PLATFORM BY A SYNCHRONIZATION CLIENT - Systems and methods to automatically upgrade, or update a synchronization client to a cloud-based platform are provided. The automatic upgrading can be provided to a personal or an enterprise-level synchronization client. The synchronization client is implemented in a manner that is silent, secure and fault tolerant. In one embodiment, the disclosed technology includes an executable process to download the update, verify the contents, and apply the update. The contents can be verified by checking the certificate on any binary. The systems and methods further include identification and handling of items to be ignored by the synchronization client for synchronization with a cloud-based platform. In some embodiments, files and folders which typically should not be synchronized are identified and removed from the synchronization process in an effective manner. | 11-26-2015 |
20160065672 | SYNCHRONIZATION OF PERMISSIONED CONTENT IN CLOUD-BASED ENVIRONMENTS - Enterprise administrators in a cloud-based environment including a cloud-based server and a repository can selectively impose permissions on items (e.g., files and folders) marked for synchronization (“sync items”). The sync items can be synchronized with the client devices of users by downloading the items along with the permission attributes from the cloud-based server. However, the permissions on those sync items means that any unpermitted changes to the local copies of the sync items do not get uploaded to the cloud-based server. A synchronization client on the client devices detects any changes made locally to the sync items that are not consistent with the permission attributes, and repairs those changes so that the sync items are restored to their most recent states. This ensures that any unauthorized changes made to sync items remain local and do not propagate by the synchronization process to other users. | 03-03-2016 |
Patent application number | Description | Published |
20120098847 | SYSTEM AND METHOD FOR REDUCED RESOLUTION ADDRESSING - This disclosure provides systems, methods and apparatus including computer programs encoded on computer storage media for producing line multiplied images with better visual appearance. The line multiplying is shifted for one of the colors of the display with respect to at least one other color of the display. | 04-26-2012 |
20120236021 | METHODS AND APPARATUS FOR DITHER SELECTION - Systems, methods and apparatus including computer programs encoded on computer storage media optimize display image quality under a variety of imaging environments. Dynamic frame streams such as those present in video applications may require a higher frame rate to adequately convey motion in the stream. A line multiplying image pipeline may be utilized for dynamic frames, which lowers the resolution of the displayed image. When dithering line multiplied images, a noise signal including asymmetrical high frequency components around zero frequency may be utilized. The display of static frames, such as photographs, may be achieved with acceptable image quality using a relatively lower display frame rate. Such a frame rate may enable the display of a high resolution image. A noise signal tailored for higher resolution, non line multiplied frames, such as a noise signal with symmetric high frequency components around zero frequency may be utilized for static frames. | 09-20-2012 |
20120236042 | WHITE POINT TUNING FOR A DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for tuning the white point of a display device. In one aspect, a display device includes a set of display elements configured to output light and electronics configured to drive the display elements. Each display element can have an on-state where a reflective surface can be positioned at a distance from a partially reflective surface such that the display element can reflect incident light. Each distance can be dependent on a bias voltage. At least one of the bias voltages for the display elements can be non-zero in the on-state, and one or more of the bias voltages may be adjustable to control a white point of the display device. The electronics can be electrically connected to the display elements to provide the at least one non-zero bias voltage. | 09-20-2012 |
20120268479 | METHODS AND APPARATUS FOR IMPROVED DITHERING ON A LINE MULTIPLIED DISPLAY - This disclosure provides systems, methods and apparatus including computer programs encoded on computer storage media for producing line multiplied images with better visual appearance. In one aspect, before lines of the image are multiplied, they are dithered with a noise signal that increases faster with higher frequency along the multiplied dimension of the image data than along the non multiplied dimension of the image. This results in a line multiplied image was improved image quality. | 10-25-2012 |
20130046803 | DITHER-AWARE IMAGE CODING - This disclosure provides implementations of dither-aware image coding processes, devices, apparatus, and systems. In one aspect, a portion of received image data is selected. First spatial domain values in the selected portion of the image data are transformed to first transform domain coefficients. Second spatial domain values in a designated dither matrix are transformed to second transform domain coefficients. A ratio of each of the first transform domain coefficients to a respective second transform domain coefficient is determined. The first transform domain coefficients are selectively coded in accordance with the determined ratios to define coded first transform domain coefficients. A reverse transformation is performed to transform the coded first transform domain coefficients to third spatial domain values defining a coded portion of the image data. By way of example, transformations such as discreet cosine transforms or discreet wavelet transforms can be used. | 02-21-2013 |
20130069968 | METHODS AND APPARATUS FOR HYBRID HALFTONING OF AN IMAGE - This disclosure provides methods, apparatus, and computer programs encoded on computer storage media for tone based halftoning of digital images. By exploiting knowledge of local image features and tone levels, the halftoning method may be adaptively switched between error-diffusion and mask-based dithering with reduced boundary artifacts. By further utilizing a smart quantization error clipping scheme, artifacts inherent to the method of error diffusion are also reduced. The method consistently generates higher quality halftone images for both still and video applications when compared to conventional methods. | 03-21-2013 |
20130069974 | HYBRID VIDEO HALFTONING TECHNIQUES - This disclosure provides techniques related to halftoning video images for display on an electronic device. The techniques include adaptively selecting, on a pixel-by-pixel basis, between a mask-based dithering (MBD) and an error diffusion (ED) halftoning technique. The ED technique may be selected for halftoning pixels of an input frame of data having either a temporal change rate metric (CRM) or a spatial CRM exceeding a respective threshold. Where both the temporal CRM and spatial CRM are less than the respective thresholds, halftoning may be performed by the technique that produces a halftone value closer to a comparison halftone value of a comparison frame. The comparison frame may be a preceding frame, or an immediately preceding frame. | 03-21-2013 |
20130100100 | METHOD AND DEVICE FOR REDUCING EFFECT OF POLARITY INVERSION IN DRIVING DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a bias voltage pattern. The bias voltage pattern includes alternating polarities along one dimension in a pattern having a first frequency spectrum, and alternating polarities along a second dimension in a pattern having a second frequency spectrum that is different than the first frequency spectrum. At least one of the first and second frequency spectrums may include a plurality of frequency components. | 04-25-2013 |
20130100107 | METHOD AND APPARATUS FOR MODEL BASED ERROR DIFFUSION TO REDUCE IMAGE ARTIFACTS ON AN ELECTRIC DISPLAY - This disclosure provides methods and apparatus, including computer programs encoded on computer storage media, for reducing visual aberrations on an electronic display. One aspect is a method of writing an input image data value to a display element in a electronic display. The method includes receiving an input image data value, and quantizing the image data value based on a threshold. The threshold may be modulated based on a voltage drive signal provided to the display element in the electronic display. The method may also write the quantized image data value to the display element. | 04-25-2013 |
20130100109 | METHOD AND DEVICE FOR REDUCING EFFECT OF POLARITY INVERSION IN DRIVING DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a hold voltage pattern. The hold voltage pattern includes alternating polarities along one dimension in a pattern, and alternating polarities along a second dimension in a pattern. The polarities of the first and second patterns may be switched in a manner that maintains a substantially constant magnitude voltage across each display element. | 04-25-2013 |
20130127881 | SYSTEMS, DEVICES, AND METHODS FOR DRIVING A DISPLAY - This disclosure provides systems, methods and apparatus for writing data to a display. The frame rate is improved by simultaneously and independently writing data to multiple common lines of the display. In some implementations, lines of common color are written simultaneously. In some implementations, more common lines of lower visual importance are written simultaneously than common lines of higher visual importance. In these implementations, colors of higher visual importance can be displayed at a higher resolution to maintain good image quality while still improving frame rate. Display element electrodes may be coupled along common lines in various ways to implement simultaneous writing to multiple common lines. | 05-23-2013 |
20130127926 | SYSTEMS, DEVICES, AND METHODS FOR DRIVING A DISPLAY - This disclosure provides systems, methods and apparatus for writing data to a display. The frame rate is improved by simultaneously and independently writing data to multiple common lines of the display. In some implementations, lines of common color are written simultaneously. In some implementations, more common lines of lower visual importance are written simultaneously than common lines of higher visual importance. In these implementations, colors of higher visual importance can be displayed at a higher resolution to maintain good image quality while still improving frame rate. Display element electrodes may be coupled along common lines in various ways to implement simultaneous writing to multiple common lines. | 05-23-2013 |
20130135338 | METHOD AND SYSTEM FOR SUBPIXEL-LEVEL IMAGE MULTITONING - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high resolution images using examples of a halftoning method based on diffusing quantization error from a subpixel displaying a color to one or more subpixels that display a different color. | 05-30-2013 |
20130222408 | COLOR MAPPING INTERPOLATION BASED ON LIGHTING CONDITIONS - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for performing color mapping in a display device. The display device can include a plurality of stored color mappings that are used to convert input digital color images into the display device's color space. Each of the stored color mappings can correspond to a distinct lighting environment. The display device can detect its lighting environment and then combine two or more of the stored color mappings based on the detected lighting environment. For example, the display device may calculate an interpolated color mapping from two or more of the stored color mappings using interpolation weights that are based on the detected lighting conditions. The display device can then convert the input image using the composite color mapping, and display the image. | 08-29-2013 |
20140043349 | DISPLAY ELEMENT CHANGE DETECTION FOR SELECTIVE LINE UPDATE - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for improving the visual appearance of displayed images at high frame rates by skipping writing lines of display data. In one aspect, clusters of changed image regions are detected, and lines are preferentially written when such clusters are detected. | 02-13-2014 |
20140192079 | ADAPTIVE TEMPORAL DITHER SCHEME FOR DISPLAY DEVICES - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high resolution images using an adaptive temporal dithering scheme on display devices having two or more color planes. The adaptive temporal dithering scheme includes identifying the dither visibility of an image to be displayed by the color planes and adaptively applying temporal dithering to the color plane having the highest dither visibility. In one aspect, temporal dithering can be adaptively applied between two different color planes on a frame-by-frame basis based at least partly on the dither visibility of the image content. | 07-10-2014 |
20140198126 | METHODS AND APPARATUS FOR REDUCED LOW-TONE HALF-TONE PATTERN VISIBILITY - This disclosure provides methods, apparatus, and computer programs encoded on computer storage media for reduced low tone pattern visibility. In one aspect, the disclosed methods receive an input image including a plurality of pixels, quantize the plurality of pixels, set half-tone image pixels corresponding to the portion of the input pixels that are below a crush threshold to a crushed value, and diffuse the quantization error resulting from the quantizing to half-tone image pixels other than the portion. In some implementations, the half-tone image pixels are then output to an output device such as an electronic display. | 07-17-2014 |
20150103094 | REGION-DEPENDENT COLOR MAPPING FOR REDUCING VISIBLE ARTIFACTS ON HALFTONED DISPLAYS - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high resolution images with reduced visible halftone noise. In one aspect, an image having a plurality of image pixels is displayed on a display device having a plurality of display pixels, by mapping the tone or color of each input image pixel onto the plurality of display pixels by assigning each display pixel a tone or color value in the color space associated with the display device that is in a neighborhood of the tone or color of each input image pixel and appears to have the same perceptual tone or color value as the image pixel and has a lower visible halftone noise. A size of the neighborhood can be selected based on the color gradient in various portions of the image. | 04-16-2015 |