Multi-screen display control device
AssigneeSilicon Motion, Inc.
InventorsChengliang QI, Guangjun LYU, Cong LI
Life of this patent
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Abstract
A multi-screen display control device includes a plurality of graphics processing units (GPUs) and a watchdog chip. The GPUs transform image data that a host transfers to the multi-screen display control device through a universal serial bus (USB) interface into a plurality of high-definition multi-media interface (HDMI) sub-images to be displayed by a plurality of screens. The watchdog chip is coupled to the GPUs and, when any of the GPUs crashes, the watchdog chip outputs a reset signal to reset all of the GPUs.
Claims24
A multi-screen display control device, comprising:
- a plurality of graphics processing units, transforming image data that a host transfers to the multi-screen display control device through a universal serial bus interface into a plurality of high-definition multi-media interface sub-images to be displayed by a plurality of screens;
- and
- a watchdog chip, coupled to the graphics processing units,
- wherein the watchdog chip outputs a reset signal to reset all of the graphics processing units when any of the graphics processing units crashes.
A multi-screen display control device, comprising:
- a plurality of card;
- and
- a plurality of universal serial bus cables connecting the cards in series, wherein image data provide by a host and input the multi-screen display control device via a universal serial bus port is transferred through the universal serial bus cables,
- wherein each card includes a plurality of graphics processing units and a watchdog chip and, in each card:
- the image data is transformed into a plurality of high-definition multi-media interface sub-images by the graphics processing units, to be displayed on a plurality of screens;
- and
- the watchdog chip outputs a reset signal to reset all of the graphics processing units of the card when any of the graphics processing units of the card crashes.
Dependencies are inferred from the claim text.