Method and apparatus for delivery of metadata synchronized to multimedia contents
First Claim
1. A method for transmitting metadata synchronized with MPEG-2 multimedia content, the method comprising:
- (a) converting the metadata into binary codes;
(b) converting the binary codes into a synchronization format suitable for synchronization with the MPEG-2 multimedia content; and
(c) packetizing the synchronization format into a metadata MPEG-2 packetized elementary stream (PES) packet, wherein the metadata MPEG-2 PES packet includes a metadata access unit (AU) and a stream ID for representing the metadata.
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Abstract
A metadata transmitter synchronized with multimedia contents comprises: a multimedia contents authoring unit for generating and editing multimedia contents; a multimedia contents format converter for compressing the multimedia contents, converting them into a transmission format, and outputting them; a metadata authoring unit for generating and editing metadata for describing the multimedia contents, the metadata including transmission types and transmission information; a metadata format converter for converting the metadata into binary codes, converting the converted metadata into a synchronization format for synchronization with the multimedia contents and a transmission format, and outputting them; and a multiplexer for multiplexing the multimedia contents format and the metadata format respectively output from the multimedia contents format converter and the metadata format converter into a stream, and outputting it.
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Citations
24 Claims
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1. A method for transmitting metadata synchronized with MPEG-2 multimedia content, the method comprising:
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(a) converting the metadata into binary codes; (b) converting the binary codes into a synchronization format suitable for synchronization with the MPEG-2 multimedia content; and (c) packetizing the synchronization format into a metadata MPEG-2 packetized elementary stream (PES) packet, wherein the metadata MPEG-2 PES packet includes a metadata access unit (AU) and a stream ID for representing the metadata. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for decoding a transport stream which is multiplexed by a MPEG-2 multimedia content and a metadata synchronized with the MPEG-2 multimedia content, the method comprising:
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(a) receiving the transport stream and converting it into a metadata MPEG-2 packetized elementary stream (PES) packet, wherein the metadata MPEG-2 PES packet includes a metadata access unit (AU) and a stream ID for representing the metadata, and a presentation time stamp (PTS); and (b) decoding the metadata referring to the metadata MPEG-2 PES to be synchronized with the MPEG-2 multimedia content. - View Dependent Claims (12, 13, 14, 24)
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15. A MPEG-2 packetized elementary stream (PES) packet comprising:
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a metadata access unit (AU); a stream ID for representing a metadata; a presentation time stamp (PTS); and a decoding time stamp (DTS). - View Dependent Claims (16, 17, 18)
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19. A method for transmitting metadata synchronized with MPEG-2 multimedia content, the method comprising:
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(a) converting the metadata into a synchronization format suitable for synchronization with the MPEG-2 multimedia content, wherein the synchronization format is MPEG-2 packetized elementary stream (PES) packet including a metadata access unit (AU) and a stream ID for representing the metadata; and (b) converting the synchronization format into a transport format, wherein the transport format is MPEG-2 Transport Stream (TS) packet. - View Dependent Claims (20)
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21. A method for decoding a MPEG-2 transport stream which includes a metadata synchronized with a MPEG-2 multimedia content, the method comprising:
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(a) converting the MPEG-2 transport stream into MPEG-2 packetized elementary stream (PES) packet, wherein the MPEG-2 PES packet includes a metadata access unit (AU) and a stream ID for representing the metadata, and a presentation time stamp (PTS); and (b) decoding the metadata based upon the PTS. - View Dependent Claims (22, 23)
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Specification