Abstract: A control module of a multimedia device for generating display data required by a display module is provided. The control module includes: a signal receiving and analyzing unit, configured to receive a first signal to accordingly generate a pre-boot command, and to receive a second signal to accordingly generate a boot command; and a processor, configured to perform a pre-boot process according to the pre-boot signal to generate the image data, to enter a waiting mode when the pre-boot process is complete, and to exit the waiting mode according to the boot command. The image data is not used to display an image by the display module when the processor remains in the waiting mode.

Abstract: A control module of a multimedia device for generating display data required by a display module is provided. The control module includes: a signal receiving and analyzing unit, configured to receive a first signal to accordingly generate a pre-boot command, and to receive a second signal to accordingly generate a boot command; and a processor, configured to perform a pre-boot process according to the pre-boot signal to generate the image data, to enter a waiting mode when the pre-boot process is complete, and to exit the waiting mode according to the boot command. The image data is not used to display an image by the display module when the processor remains in the waiting mode.

Abstract: A video/audio data processing module is provided. By directly transmitting audio streams of different channels designated by multiple users to mobile devices respectively held by the users, instead of being restricted to a limitation that a digital TV being capable of playing a monophonic audio, the users are enabled to listen to audios of respective desired programs.

Abstract: A symbol input device, applied to a touch screen that generates a detection result according to touch points, includes a receiving unit, a storage unit and a control unit. The receiving unit receives the detection result, the storage unit stores a look-up table, and the control unit determines a symbol from the look-up table according to the number of the touch points on the touch screen indicated in the detection result.