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US 8,412,774 B2Granted
Picture-in-picture video content distribution
AssigneeAT&T Intellectual Property I, L.P.
InventorsBrad Medford, Dinesh Nadarajah
Life of this patent
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Abstract
A method and system for multicasting video signals over a network. A standard definition (SD) picture-in-picture (PIP) multicast video signal is encoded from a video signal. A common network address is assigned to the SD PIP multicast video signal for both SD PIP video content and high definition (HD) video content.
Claims23
A method comprising:
- obtaining a video signal;
- encoding the video signal to generate a standard definition picture-in-picture multicast video signal;
- encoding the video signal to generate a high definition full screen multicast video signal;
- assigning an identical network address to a first network identification field of the standard definition picture-in-picture multicast video signal of a high definition channel map and to a second network identification field of the standard definition picture-in-picture multicast video signal of a standard definition channel map;
- and
- providing the standard definition picture-in-picture multicast video signal to a requesting device responsive to a request from the requesting device for high definition picture-in-picture video content.
3 more elements
A method comprising:
- selectively accessing a high definition full screen video signal from a server in response to a first request for high definition full screen video content;
- selectively accessing a standard definition full screen video signal in response to a second request for standard definition full screen video content;
- accessing only a standard definition picture-in-picture video signal in response to a third request for high definition picture-in-picture video content;
- and
- wherein an identical network address is assigned to a first network identification field of the standard definition picture-in-picture video signal of a high definition channel map and to a second network identification field of the standard definition picture-in-picture video signal of a standard definition channel map.
2 more elements
A system comprising:
- a first device to broadcast over an internet protocol television network a standard definition full screen video signal for standard definition full screen video content at a first network address, a high definition full screen video signal for high definition full screen video content at a second network address, and only a standard definition picture-in-picture video signal responsive to a request for high definition video content at a third network address, wherein an identical network address is assigned to a first network identification field of the standard definition picture-in-picture video signal of a high definition channel map and to a second network identification field of the standard definition picture-in-picture video signal of a standard definition channel map.
A computer-readable medium having stored thereon a data structure, the data structure comprising:
- standard definition picture-in-picture network identification fields to identify a first network address for video content;
- standard definition full screen network identification fields to identify a second network address for the video content;
- and
- high definition full screen network identification fields to identify a third network address for the video content;
- wherein the first network address is adapted to provide only a standard definition picture-in-picture multicast video signal responsive to a request for high definition picture-in-picture video content, and wherein an identical network address is assigned to a first field of the standard definition picture-in-picture network identification fields of the standard definition picture-in-picture multicast video signal of a high definition channel map and to a second field of the standard definition picture-in-picture network identification fields of the standard definition picture-in-picture multicast video signal of a standard definition channel map.
2 more elements
A computer-readable medium comprising instructions, which when executed by a machine, cause the machine to:
- encode a standard definition picture-in-picture multicast video signal from a video signal;
- encode a high definition full screen multicast video signal from the video signal;
- and
- supply a requesting device the standard definition picture-in-picture multicast video signal responsive to a request from the requesting device for high definition picture-in-picture video content, wherein an identical network address is assigned to a first network identification field of the standard definition picture-in-picture multicast video signal of a high definition channel map and to a second network identification field of the standard definition picture-in-picture multicast video signal of a standard definition channel map.
1 more element
A computer-readable medium comprising instructions, which when executed by a machine, cause the machine to:
- selectively access a high definition full screen video signal in response to a first request for HD full screen video content;
- selectively access a standard definition full screen video signal in response to a second request for standard definition full screen video content;
- and
- access only a standard definition picture-in-picture video signal in response to a third request for high definition picture-in-picture video content, wherein an identical network address is assigned to a first network identification field of the standard definition picture-in-picture video signal of a high definition channel map and to a second network identification field of the standard definition picture-in-picture video signal of a standard definition channel map.
1 more element
Dependencies are inferred from the claim text.