Computer system and related image-based rendering devices and display device
A computer system and display device technology, applied in the field of image drawing, can solve the problems of high demand for central processing unit computing power and difficult increase in the number of screens, and achieve the effect of reducing the amount of data transmission and increasing the number
Inactive Publication Date: 2012-03-14
SILICON MOTION INC (CN)
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[0005] However, the total transmission bandwidth of the USB interface of the host computer is limited. Therefore, the architecture using the traditional USB graphics card not only requires high computing power of the central processing unit, but also makes it difficult for a single host computer to support a large number of screens at the same time. promote
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[0029] Embodiments of the present invention will be described below in conjunction with related figures. In the drawings, the same reference numerals designate the same or similar components.
[0030] Certain terms are used throughout the specification and following claims to refer to particular components. Those skilled in the art should understand that the same component may be called by different terms. This specification and subsequent claims do not use the difference in name as the way to distinguish components, but the difference in function of the components as the basis for distinction. "Includes" mentioned throughout the specification and subsequent claims is an open term, so it should be interpreted as "including but not limited to...". In addition, the term "coupled" includes any direct and indirect means of connection in the specification and subsequent claims. Therefore, if it is described in the text that a first device is coupled to a second device, it means ...
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The invention discloses image-based rendering devices one of which comprises an input interface, an image processing circuit and an output module, wherein when coupled with a host computer in a demountable mode, the input interface receives a rendering instruction generated by the host computer; the image processing circuit can generate an image frame containing graphical user interface data, computer image data or text data according to the rendering instruction; the output module is used for transmitting the image frame to a display device for displaying; and the data volume of the rendering instruction which is received by the input interface from the host computer is less than the data volume which is transmitted to the display device by the output module. Because the image processing circuit of the image-based rendering device can generate an image frame according to the rendering instruction transmitted by the host computer, the host computer does not need to generate an image frame firstly and then transmit the image frame to the image-based rendering device, so that the quantity of data transmission between the host computer and the image-based rendering device can be greatly reduced, and the number of the image-based rendering devices which can be simultaneously supported by a single host computer is increased.
Description
technical field [0001] The invention relates to the image drawing technology of the computer system, especially a computer system capable of reducing the usage of data bandwidth between the host computer and the image drawing device, as well as the related image drawing device and display device. Background technique [0002] The traditional computer system has only one screen, but with the increase of various applications, there are more and more cases where users need to use a single computer host with two or more screens at the same time. Most of the display cards equipped with general computer hosts have only one or two video signal output ports, and can only be connected to two screens at most. One of the ways to increase the number of screens that a single host computer can support is to add more display cards inside the host computer, but the cost of the graphics card is high, and the inside of the host computer casing and the motherboard can accommodate an additional...
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IPC IPC(8): G06F3/14
CPCG06F3/1438
Inventor 王浩孙秀超
Owner SILICON MOTION INC (CN)