Patent ID: 8539470
Filing Date: 2013-09-17
Classification: G06F,G09G

Abstract:
1. A system for updating the function of a monitor, comprising: a programming module, comprising a first microcontroller and a first memory device, wherein the first memory device is coupled to the first microcontroller for storing updating program codes; at least a display control circuit, wherein the monitor comprises the display control circuit, and the display control circuit comprises a scale controller and a second memory device, and the second memory device is coupled to the scale controller for storing control program codes of the monitor; and at least a first connector, for connecting the first microcontroller of the programming module and the scale controller of the a display control circuit; wherein before updating the function of the monitor, the first microcontroller sends a programming activation signal in a first signal format to the scale controller, such that the scale controller enters a state of updating program accordingly, then the first microcontroller accesses the second memory device through a signal in a second signal format to delete the control program codes and write the updating program codes into the second memory device, so as to update the function of the monitor; wherein the signal in the second signal format comprises an enable signal, the system further comprising: a selecting circuit coupled between the first microcontroller and the first connectors, for receiving the enable signal and a selecting signal, for determining the display control circuits to be updated at the same time; wherein the selecting circuit comprises: a first de-multiplexer, for receiving the enable signal and for outputting the enable signal at one of output terminals of the first de-multiplexer; a plurality of NOR gates, wherein each of the NOR gates has a first input terminal coupled to one of the output terminals of the first de-multiplexer, and has a second input terminal for receiving the selecting signal, to generate output signals which are utilized to determine whether to update the display control circuits coupled to the first connectors at the same time or to update only one display control circuit; wherein each signal received by each one of the first input terminals is independent from other the signals received by other the first input terminals.