Digital cable TV receiver, diagnosis method for the same, and data structure of HDMI status report
First Claim
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1. A host interfacing with a cable card in an open cable system comprising:
- a plurality of High-Definition Multimedia Interface (HDMI) ports linked to a plurality of peripheral devices respectively; and
a controller configured to receive a request from the cable card, wherein the controller is further configured to generate HDMI status information associated with the HDMI ports in response to the request,wherein the host forwards the generated HDMI status information to the cable card using Generic Diagnostic Protocol,wherein when a plurality of diagnostics corresponding to the plurality of HDMI ports are forwarded to the cable card, the plurality of diagnostics are identified by the same diagnostic identifier, andthe HDMI status information includes;
connect status information indicating whether a connection exists on each of the HDMI ports, host HDCP status information indicating whether a HDCP is enabled on each of the HDMI ports, device HDCP status information indicating a HDCP status of each of the peripheral devices connected to the host, video format information indicating a current video format used on each of the HDMI ports, and audio information.
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Abstract
A host includes at least one High-Definition Multimedia Interface (HDMI) port. A controller is configured to receive a request from a source external to the host. The controller is further configured to collect HDMI status information associated with the HDMI port in response to the request.
50 Citations
15 Claims
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1. A host interfacing with a cable card in an open cable system comprising:
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a plurality of High-Definition Multimedia Interface (HDMI) ports linked to a plurality of peripheral devices respectively; and a controller configured to receive a request from the cable card, wherein the controller is further configured to generate HDMI status information associated with the HDMI ports in response to the request, wherein the host forwards the generated HDMI status information to the cable card using Generic Diagnostic Protocol, wherein when a plurality of diagnostics corresponding to the plurality of HDMI ports are forwarded to the cable card, the plurality of diagnostics are identified by the same diagnostic identifier, and the HDMI status information includes;
connect status information indicating whether a connection exists on each of the HDMI ports, host HDCP status information indicating whether a HDCP is enabled on each of the HDMI ports, device HDCP status information indicating a HDCP status of each of the peripheral devices connected to the host, video format information indicating a current video format used on each of the HDMI ports, and audio information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method in an open cable system including a host device and a cable card, the method comprising:
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receiving, by the host device, a request from the cable card; and generating, by the host device, High-Definition Multimedia Interface (HDMI) status information associated with a plurality of HDMI ports linked to a plurality of peripheral devices in response to the request, forwarding by the host device, the HDMI status information using Generic Diagnostic Protocol to the cable card, wherein when a plurality of diagnostics corresponding to the plurality of HDMI ports are forwarded to the cable card, the plurality of diagnostics are identified by the same diagnostic identifier, and the HDMI status information includes;
connect status information indicating whether a connection exists on each of the HDMI ports, host HDCP status information indicating whether a HDCP is enabled on each of the HDMI ports, device HDCP status information indicating a HDCP status of each of the peripheral devices connected to the host, video format information indicating a current video format used on each of the HDMI ports, and audio information. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification