System and method for managing digital/analog convertor of a video card
AssigneeHon Hai Precision Industry Co., Ltd.
InventorChih-Huang Wu
Life of this patent
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Abstract
In a method of processing an abnormal digital/analog convertor (DAC) of a video card, the video card comprising a first DAC and a second DAC, the video card connecting to an output interface. The method controls the video card to use the first DAC for converting data to the output interface through a first switch and at least one second switches in the video card. The method further detects whether the first DAC works normally. When the first DAC is determined to work abnormally, the method switches the first DAC to the second DAC for converting the data to the output interface through the first switch and the at least one second switches.
Claims15
A computer-implemented method for managing digital/analog convertors (DACs) of a video card, the video card comprising a first DAC and a second DAC, the video card in connection with an output interface, the computer-implemented method comprising:
- controlling the video card to use the first DAC for converting data that is transmitted to the output interface through a first switch and at least one second switches in the video card;
- detecting whether the first DAC works normally by sending a request signal at each predetermined time interval and waiting for a response from the first DAC, wherein the first DAC is determined to work normally when the response has been received from the first DAC in a preset time duration, and the first DAC is determined to work abnormally when the response has not been received from the first DAC in the preset time duration;
- and
- switching the first DAC to the second DAC for converting the data to the output interface through the first switch and the at least one second switches, when the first DAC works abnormally.
A non-transitory storage medium storing a set of instructions, when executed by at least one processor of a video card, cause the at least one processor to perform a method for managing digital/analog convertors (DAC) of a video card, the video card comprising a first DAC and a second DAC and the video card connecting to an output interface, the method comprising:
- controlling the video card to use the first DAC for converting data that is transmitted to an output interface through a first switch and at least one second switches in the video card;
- detecting whether the first DAC works normally by sending a request signal at each predetermined time interval and waiting for a response from the first DAC, wherein the first DAC is determined to work normally when the response has been received from the first DAC in a preset time duration, and the first DAC is determined to work abnormally when the response has not been received from the first DAC in the preset time duration;
- and
- switching the first DAC to the second DAC for converting the data to the output interface through the first switch and the at least one second switches, when the first DAC is determined to work abnormally.
A video card connecting with an output interface, comprising:
- a first switch;
- at least one second switches;
- a first digital/analog convertor (DAC) and a second DAC;
- a storage system;
- at least one processor for executing one or more programs that are stored in the storage system to perform a method of managing DACs:
- controlling the video card to use the first DAC for converting data that is transmitted to an output interface through a first switch and at least one second switches;
- detecting whether the first DAC works normally by sending a request signal at each predetermined time interval and waiting for a response from the first DAC, wherein the first DAC is determined to work normally when the response has been received from the first DAC in a preset time duration, and the first DAC is determined to work abnormally when the response has not been received from the first DAC in the preset time duration;
- and
- switching the first DAC to the second DAC for converting the data to the output interface through the first switch and the at least one second switches, when the first DAC is determined to work abnormally.
Dependencies are inferred from the claim text.