Patent ID: 8937566
Filing Date: 2015-01-20
Classification: G06F,H03M,H04N

Abstract:
1. 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.