Displaylink (uk) Limited

Displaylink Limited

Matthew Parks

Patrick David Cooper

Colin Skinner

Peter Skan

A method of healing an image in a display system having a host device and a display control device includes generating healing updates corresponding to a region of the image and generating other display data at the host device, allocating, by the host device or the display control device, at least a portion of a resource of the display system to be used at least preferentially for at least one of encoding, decoding, transmitting and/or storing the healing updates rather than the other display data, encoding the healing updates and the other display data at the host device, transmitting the encoded healing updates and the other encoded display data from the host device to the display control device, decoding the encoded healing updates and the other encoded display data at the display control device, and healing the image using the decoded healing updates at the display control device.

Managing display data

Disclosed herein is a method of writing data to, and reading data from, one or more buffers. The method comprises: determining a write rate of writing data into a first buffer; determining a read rate of reading data from the first buffer; determining, using the write rate and the read rate, a portion of the first buffer; writing data into the portion of the first buffer; starting to read data from the first buffer when the writing of data to the portion of the first buffer has finished; and writing data into a remaining part of the first buffer, different from the portion of the first buffer. The portion of the first buffer is determined such that the reading of data from the first buffer does not overtake the writing of data into the first buffer.

Sensor information is received (S) at a host device from a mobile device. A pose of the mobile device is then determined by the host device based on the received sensor information. The pose of the mobile device is compared with pose information (S) of previous poses of the mobile device, each previous pose of the mobile device being associated with a performance level of the system for data transmitted from the host device and received and output at the mobile device having that previous pose. The host device then determines (S) whether a performance level of the system for the mobile device having the determined pose is likely to be above or below a threshold of acceptability based on the comparison, and, if it is determined that the performance level is likely to be above the threshold of acceptability, setting (SA) a low level of compression to be applied to the data so that quality of the data transmitted to the mobile device is high, but, if it is determined that the performance level is likely to be below the threshold of acceptability, setting (SB) a high level of compression to be applied to the data so that quality of the data transmitted to the mobile device is low, but is more likely to be received and output properly by the mobile device.

Data transmission to mobile devices

A method of presenting visual information on a screen () involves defining a boundary () delineating a first region of the screen (which may be towards a centre of the screen) from a second region of the screen (which may be towards a periphery of the screen), displaying a first portion of the visual information in the first region of the screen at a first display quality, and displaying a second portion of the visual information in the second region of the screen at a second, lower, display quality. The method further involves blurring the visual information for display in at least a portion of the second region. The location of the boundary () may change over time, and may be based on where a user is looking, or is expected to be looking, or on the type of information being displayed or based on other parameters.

System and method for presenting data at variable quality

A method for processing data for display on a screen involves encoding, using a first colour space, a first portion of image data intended to be displayed on a first area of the screen and encoding, using a second colour space, a second portion of image data intended to be displayed on a second area of the screen. The encoded first and second portions of the image data are compressed, and transmitted over a link for display on the screen. By using different colour spaces to encode image data that is displayed in different parts of a screen, differences in a users vision and/or aberrations caused by display equipment may be accounted for and so provide an improved user experience. Using different colour spaces for different screen areas may also reduce the amount of data that needs to be transmitted, for example by encoding image data more effectively and/or allowing more efficient compression of data.

Method and apparatus for colour imaging

A method for processing data for display on a screen involves encoding, using a first colour space, a first portion of image data intended to be displayed on a first area of the screen and encoding, using a second colour space, a second portion of image data intended to be displayed on a second area of the screen. The encoded first and second portions of the image data are compressed, and transmitted over a link for display on the screen. By using different colour spaces to encode image data that is displayed in different parts of a screen, differences in a user's vision and/or aberrations caused by display equipment may be accounted for and so provide an improved user experience. Using different colour spaces for different screen areas may also reduce the amount of data that needs to be transmitted, for example by encoding image data more effectively and/or allowing more efficient compression of data.

In virtual-reality display devices it is possible to use head movement as an input to compression, which assumes that the user is looking at something that is moving at approximately the same rate in the same direction as the user's head. This method determines whether an eye of a user of a head mounted display is directed at a relatively fixed point. The method involves detecting (S) a movement of the user's head, including a lack of movement thereof, determining (S) a direction of the movement of the user's head, detecting (S) movement of at least one eye of the user, including a lack of movement thereof, and determining (S) a direction of the movement of the user's eye. If the directions of movement of the user's head and at the user's eye are different (S), within a predetermined threshold, it can be assumed that the user's eye is directed at a fixed point (S), whereas if the directions of movement of the user's head and the user's eye are not different (S), within a predetermined threshold, then it can be assumed that the user's eye is not directed at a fixed point (S).

Method and apparatus for determining whether an eye of a user of a head mounted display is directed at a fixed point

A method of facilitating peer-to-peer connection involves transmitting, by a first peer device, an identification of the first peer device and information regarding its capabilities. The information regarding its capabilities including a list of transmission channels that the first peer device is capable of supporting, an indication of which transmission channels the first peer device is capable of supporting as a group owner, and/or an indication of which transmission channels the first peer device is capable of supporting as a client. The first peer device receives from a second peer device, an identification of the second peer device and information regarding its capabilities including a list of transmission channels that the second peer device is capable of supporting. The first peer device and the second peer device then negotiate which of the first and second peer devices should be the group owner and which should be the client.

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Cambridge, United Kingdom

Matthew Parks