Abstract: A display device is provided, which includes an image buffer, a display module, and a display controller. The display controller is used for receiving an image signal from a host, and storing the image signal in the image buffer. In response to the display controller receiving a trigger signal, the display controller controls the display device to enter an image-rewinding mode. The display controller obtains a retrospective image that corresponds to a retrospective time point according to a user command, and plays the retrospective image on the display module.

Abstract: A control method for powering timing, performed by a controller, includes: performing a delay modulation procedure when triggered by a delay modulation command, wherein the delay modulation procedure includes: after a delay duration has passed, determining whether a number of output voltage values of a number of voltage converters reach a number of target levels respectively, wherein the target levels correspond to the output voltage values respectively. The method further includes: if any one of the output voltage values does not reach a corresponding one of the target levels, increasing the delay duration according to a first default interval and updating the delay duration, and performing the delay modulation procedure when triggered by the delay modulation command again; and if the output voltage values reach the target levels respectively, outputting a power good signal to a central processing unit, for the central processing unit to perform a booting procedure.

Abstract: A display device is provided, which includes an image buffer, a display module, and a display controller. The display controller is used for receiving an image signal from a host, and storing the image signal in the image buffer. In response to the display controller receiving a trigger signal, the display controller controls the display device to enter an image-rewinding mode. The display controller obtains a retrospective image that corresponds to a retrospective time point according to a user command, and plays the retrospective image on the display module.

Abstract: A power switch device includes a switch, a control unit, and a communication interface. The switch includes a power input terminal, which is configured to receive an external power; and a power output terminal, which is configured to output the external power. The switch normally remains open. The control unit is turned on when receiving the external power via the power input terminal, and transmits a start request via the communication interface. The control unit determines whether the communication interface receives a busy message within a delay time period. If the busy message is not received within the delay time period, the control unit controls the switch to be closed, and sets a start process time period. Within the start process time period, if the communication interface receives another start request, the control unit generates another busy message to respond to the another start request via the communication interface.