| 摘要 |
A method of changing between a Data over Cable Service Interface Specifications (DOCSIS) mode and a DOCSIS Set-top box Gateway (DSG) mode in a digital broadcast receiver, includes: performing channel searching to change into the DSG mode, and detecting a cause of a failure in securing a channel via a database upon failing to secure the channel in response to a user requesting a change of mode via a host; and recovering the DSG mode as a result of detecting the failure cause upon receiving DSG data. It is therefore possible to change from the DOCSIS mode to the DSG mode according to the state of the OpenCable digital broadcast receiver, thereby improving its capability of coping with a field.
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