| 摘要 |
<p>A method and apparatus are described for allowing a user to select one of an analog signal source and a digital signal source in a signal processing device, wherein the signal processing device compares an analog channel number with a digital channel list, determines based on results of the comparison if a corresponding digital channel is available, and, if available, stores a corresponding digital channel number and selects the corresponding digital channel determined from the digital channel list in response to a command from a user. A method and apparatus are also described as above but further determining based on the comparison if a corresponding digital channel is available, and, if available, prompting the user via an onscreen display (OSD) to select the digital signal.</p> |
