Displaylink (uk) Limited

Displaylink Limited

Patrick David Cooper

Matthew Parks

Colin Skinner

Timothy Mark Edmonds

Richard Akester

Ian Christopher Doidge

Martin Andrew Turnock

A method for compressing display data is disclosed. The method comprises performing a wavelet transformation to obtain a general approximation coefficient and a plurality of detail coefficients for a group of pixels; determining whether to prioritise transmission of the general approximation coefficient over transmission of the detail coefficients based on whether there are sufficient resources available to enable a corresponding image frame to be ready for display and/or based on a time since the detail coefficients for a corresponding group of pixels were previously transmitted. If it is determined that transmission of the general approximation coefficient is to be prioritised over transmission of the detail coefficients, the method comprises either: transmitting only the general approximation coefficient, or compressing at least one detail coefficient so as to be more compressed than the general approximation coefficient and transmitting the general approximation coefficient and the at least one compressed detail coefficient.

Processing display data for transmission

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 provides pre-rendered information messages for display by a peripheral display unit connected to a base station over a data link. The method involves detecting that a data connection between the base station and the peripheral display unit is available, sending pre-rendered information messages from the base station to the peripheral display unit, and storing the pre-rendered information messages at the peripheral display unit for display in response to a status detected at the peripheral display unit. The base station may perform the pre-rendering of information messages in response to variation in configuration information relating to the peripheral display unit. The pre-rendered information messages may be paired with peripheral display unit statuses and the peripheral display unit may be configured so that, in the event that a particular status is detected, the corresponding pre-rendered information message is displayed without requiring data transmission from the base station.

System and method for locally generating data

A method for mitigating intentional potential interruptions in data signal communication, the method comprising transmitting (S) or receiving (S) a data signal, determining when a portion of the data signal has been successfully transmitted (S) or received (S), when the portion of the data signal has been successfully transmitted or received, generating (S) a transmission interruption signal, and in response to the transmission interruption signal, performing one or more maintenance operations, such as beamforming, that may potentially interrupt transmission or reception of the data signal.

Controlled interruptions to wireless signalling

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.

A method of generating display data at a display control device for display on a movable display involves receiving and storing a current frame of display data from a host device. The current frame is then processed and output for display on the movable display. Sensor data from sensors associated with the movable display is received and stored, the sensor data indicating movement and/or position of the movable display. If it is determined that a next frame of display data is not ready at the display control device for processing and outputting to the movable display at a required time, then an estimated next frame of display data is generated using the stored current frame and the stored sensor data and the estimated frame of display data is output for display on the movable display. The sensor data may be received either before or after the current frame is received, stored, processed or output.

Generating display data

A system to enable a computer to provide output to a display over a general-purpose data transmission medium, such as USB. The system includes provision of a plurality of display interface components, each display interface component adapted to receive display data and transmission of the display data to the display via the general-purpose data transmission medium. Each component is associated with a respective stage of operation of the system. The system is configured to use a respective one of the display interface components during each of a plurality of distinct operational stages.

Growing community of inventors

Cambridge, United Kingdom

Patrick David Cooper