Patent ID: 8160424

Claim:
A host coupled to a cable card in a cable broadcast receiver, the host comprising: a controller configured to control to receive a request for diagnostic information on a Digital Video Recorder (DVR) from the cable card, parse the received request, collect diagnostic information on the DVR in accordance with the parsed request; and the controller further configured to control to display the collected diagnostic information via On Screen Display (OSD) and transmit the collected diagnostic information to the cable card, wherein the diagnostic information includes first information indicating whether or not the host has a DVR function, and the host has one of a first DVR function being used as middleware allowing digital software to be run on the cable broadcast receiver that serves as hardware and a second DVR function native to a manufacturer of the host if the host has the DVR function, second information indicating a type of a DVR storage and a status of the DVR storage, the status being at least one of normal, out of order, having not been formatted and having a bad sector, and third information indicating an operating status of the DVR function, wherein the diagnostic information is used to communicate by a generic diagnostic protocol between the host and the cable card, and wherein the operation status of the DVR function includes any one of a recording operation, and a time shift operation which means the DVR temporarily records an event of a content being currently received, and displays a recorded event at the same time.