Display update for a wireless display device
AssigneeIntel Corporation
InventorsKyungtae Han, Guoqing C. Li, Sumit K. Singh
Life of this patent
Estimating the term…
Abstract
Embodiments of partial update for a wireless display device include providing an update information message identifying a location of the partial update and the changed image data. A display source identifies changes in image data stored in a frame buffer, generates an update information message to identify the location of the changed image data and to provide the changed image data. A display sink receives the update information message and merges the changed image data with image data stored in a local frame buffer.
Claims20
A method performed by a processor device to update a display device, the method comprising:
- identifying the display device during a wireless personal area network discovery phase, the display device transmitting a message indicating that the display device supports partial. updates;
- detecting an image change to a block of an image for display on the display device, the display device supporting wireless communications;
- generating a partial update message based on detection of the image change for the block;
- and
- transmitting the partial update message to the display device as a wireless signal.
A method for updating a display device comprising:
- broadcasting a message from the display device during a wireless personal area network discovery phase, the message indicating that the display device supports partial updates;
- storing display information for an image to display on the display device, the display device supporting wireless communications;
- receiving a partial update message as a wireless communication;
- retrieving partial update information from the partial update message, the partial update information describing an update to the image to display on the display device;
- merging the partial update information with the stored display information to generate merged information;
- and
- displaying the merged information on a display screen of the display device to display the partial update information.
An apparatus, comprising:
- a memory storage unit, comprising a main memory unit and a frame buffer, the frame buffer storing image data for display on a display device;
- a display engine to:
- retrieve image data from the frame buffer;
- and
- identify a change in at least one frame of the image data;
- an update unit to generate update information based on the change in the at least one frame of the image data;
- and
- a wireless communication unit to transmit the update information to a display device using a wireless communication protocol,
- wherein the apparatus initially identifies the display device by receiving a message during a wireless personal area network discovery phase, the message indicating that the display device supports partial updates.
A display apparatus, comprising:
- a memory storage unit, comprising a main memory unit and a frame buffer, the frame buffer to store image data for display on a display screen;
- a communication unit to receive update information over a wireless communication channel, the update information identifying a change in at least one frame of the image data;
- an update unit to merge the update information with image data stored in the frame buffer and generate merged information;
- a display timing controller to control display of the merged information on the display screen;
- and
- a display interface to present the merged information to the display screen,
- wherein the display apparatus broadcasts a message during a wireless personal area network discovery phase, the message indicating that the display apparatus supports partial updates.
Dependencies are inferred from the claim text.