Cable broadcast program receiver and a diagnostic method of the cable broadcast program receiver

摘要

The present invention relates to a cable broadcast program receiver and a diagnostic method of the cable broadcast program receiver. In an aspect of the present invention, a diagnostic method of a cable broadcast program receiver may include transmitting, at a cablecard, a diagnostic request containing diagnostic information regarding DiiVA connection status to a host according to a protocol of an interface between the cablecard and the host; and receiving, at the host, the diagnostic request and transmitting diagnostic confirmation information containing a diagnostic status report regarding the DiiVA connection status to the cablecard according to the protocol of the interface between the cablecard and the host in response to the diagnostic request.

主权项

1. A cable broadcast program receiver comprising:
a cablecard to transmit a diagnostic request containing diagnostic information regarding digital interactive interface for video and audio (DiiVA) connection status to a host device according to a protocol of an interface between the cablecard and the host device; and the host device to receive the diagnostic request, and to transmit diagnostic confirmation information containing a diagnostic status report regarding the DiiVA connection status to the cablecard according to the protocol of the interface between the cablecard and the host device in response to the diagnostic request, wherein the diagnostic status report regarding the DiiVA connection status contains first information indicating a DiiVA device version and second information indicating a current video format utilized on a DiiVA link, wherein the second information contains a color depth field indicating a color depth on the DiiVA link, and wherein a value of the color depth field describes one of 24 bits per pixel, 30 bits per pixel or 36 bits per pixel.