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.
Claims18
A method performed by a processor device to update a display device, the method comprising:
- detecting an image change to a block of an image for display on a display device, the display device supporting wireless communications;
- generating a partial update message based on detection of the image change for the block, wherein the partial update message includes a number of blocks field to identify a number of blocks in a plurality of blocks, and at least one block location identifier for each of the plurality of blocks;
- and
- transmitting the partial update message to the display device as a wireless signal.
A method for updating a display device comprising:
- storing display information for an image to display on a display device, the display device supporting wireless communications;
- receiving a partial update message as a wireless communication, wherein the partial update message includes a number of blocks field to identify a number of blocks in a plurality of blocks, and at least one block location identifier for each of the plurality of blocks;
- 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, wherein the update information includes the number of blocks, and for each block, the update information includes a block location identifier and corresponding change in image data;
- and
- a wireless communication unit to transmit the update information to a display device using a wireless communication protocol.
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 including a number of blocks, and for each block, the update information includes a block location identifier 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.
Dependencies are inferred from the claim text.