Abstract: A processing method of an external-image device includes the following steps. A first number of basic area-updating requests are received, wherein each of the basic area-updating requests corresponds to an image-updating area. The first number of basic area-updating requests are generated by an electrical device and correspond to an updating content of a displayed image. The image-updating areas corresponding to the first number of basic area-updating requests are calculated to integrate the image-updating areas to a second number of transmission-image areas. The second number of transmission-image areas are transmitted to the external-image device through an external video adaptor.

Abstract: The invention provides an electronic apparatus. In one embodiment, the electronic apparatus is coupled to a display device, and comprises a memory, a data transmission interface, and a control module. The memory comprises a virtual frame buffer for storing data to be transmitted to the display device. The data transmission interface performs data transmission between the electronic apparatus and the display device. The control module stores a current character image corresponding to a current character in the virtual frame buffer when users input the current character to an input device, determines whether a prior image which has not been transmitted to the display device exists in the virtual frame buffer, determines whether the current character image matches the prior image, and combines the prior image with the current character image to obtain a combined image in place of the prior image when the current character image matches the prior image.

Abstract: A processing method of an external-image device includes the following steps. A first number of basic area-updating requests are received, wherein each of the basic area-updating requests corresponds to an image-updating area. The first number of basic area-updating requests are generated by an electrical device and correspond to an updating content of a displayed image. The image-updating areas corresponding to the first number of basic area-updating requests are calculated to integrate the image-updating areas to a second number of transmission-image areas. The second number of transmission-image areas are transmitted to the external-image device through an external video adaptor.

Abstract: An embodiment of an apparatus for contributively modifying an image orientation is introduced. The apparatus includes a display angle detection unit configured to detect a display angle setting. A parameter storage unit stores a display parameter being utilized to determine how to modify images. The hot-plugging processing unit changes a hot-plugging signal to cause the external apparatus to recognize that the display processing unit is disconnected therefrom, and modifies the content of the display parameter with a new display parameter value that is consistent with the current display placement when the display angle setting satisfies a display angle refreshing condition. The hot-plugging processing unit changes the hot-plugging signal to cause the external apparatus to recognize that a new apparatus is connecting, thereby enabling the external apparatus to read out the new display parameter value and generate the image stream corresponding to the new display parameter value.

Abstract: The invention provides an electronic apparatus. In one embodiment, the electronic apparatus is coupled to a display device, and comprises a memory, a data transmission interface, and a control module. The memory comprises a virtual frame buffer for storing data to be transmitted to the display device. The data transmission interface performs data transmission between the electronic apparatus and the display device. The control module stores a current character image corresponding to a current character in the virtual frame buffer when users input the current character to an input device, determines whether a prior image which has not been transmitted to the display device exists in the virtual frame buffer, determines whether the current character image matches the prior image, and combines the prior image with the current character image to obtain a combined image in place of the prior image when the current character image matches the prior image.