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US 8,528,017 B2Granted
Carriage of closed data through digital interface using packets
AssigneeSony Corporation
InventorRobert Noel Blanchard
Life of this patent
Estimating the term…
Abstract
Closed caption (CC) data is carried across a digital interface such as HDMI by a source such as a set top box arrange CC data into a HDMI packet that is then transmitted, along with video packets, across the interface to a sink such as a TV. The CC data is kept in the same format that it was received and the TV's decoder processor processes the packets and renders CC text as if the CC data had been received by the tuner of the TV.
Claims11
Sink for presenting multimedia data including video data comprising:
- video display;
- digital media (DM) interface configured for receiving a stream of multimedia packets and closed caption (CC) packets from a source;
- sink processor communicating with the DM interface for receiving the stream and extracting the CC packets therefrom;
- the sink processor configured for decoding the multimedia packets and presenting on the display video represented by decoded multimedia packets;
- the sink processor, responsive to commands from a user input device, configured for selectively displaying CC text derived from the CC packets on the display along with the video, the processor being configured for determining whether to present the CC text with the video responsive to user commands input to the sink, a first number of bytes being included in a CC data structure for a first combination of multimedia frame rate and frame type, a second number of bytes being included in a CC data structure for a second combination of multimedia frame rate and frame type.
2 more elements
Assembly comprising:
- computer readable storage medium that is not a carrier wave and bearing multimedia data structures representing at least video for presentation of the video on a display of a sink device and closed caption (CC) data structures, the CC data structures not containing multimedia data and containing both information representing CC text that is to be presented on the display along with the video responsive to a user command received at the sink;
- and
- processor configured for accessing the medium to:
- source a stream of information including the CC data structures and multimedia packets representing the video to a sink through a digital media (DM) interface for presentation of the stream on the sink which determines whether to present the CC text with the video responsive to user commands input to the sink, a first number of bytes being included in a CC data structure for a first combination of multimedia frame rate and frame type, a second number of bytes being included in a CC data structure for a second combination of multimedia frame rate and frame type.
1 more element
Dependencies are inferred from the claim text.