MULTIPLEXING APPARATUS AND METHOD FOR VIDEO TRANSMISSION

• US 20180084288A1
• Filed: 06/27/2017
• Published: 03/22/2018
• Est. Priority Date: 09/20/2016
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Suzuki, Toshio
• Granted Patent: US 10,757,454 B2
• Time in Patent Office: Days
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format

Abstract

According to one embodiment, a multiplexing apparatus includes a processor and a multiplexer. The processor is configured to identify the version of the video transmission standard of each of input packets, and to convert the version of the packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version. The multiplexer is configured to multiplex the input packets, based on the reference version.

Claims

1. A multiplexing apparatus comprising:

a processor configured to

identify a version of video transmission standard for each of input packets, and

convert a version of a packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version; and

a multiplexer configured to

multiplex the input packets, based on the reference version.

2. The multiplexing apparatus of claim 1, wherein

the processor is further configured to

identify a version of a packet based on comparison with a plurality of predetermined versions if the identified version is different from the reference version.

3. The multiplexing apparatus of claim 2, wherein

the processor is further configured to

discard the packet if the version of the packet fails to be identified.

4. The multiplexing apparatus of claim 2, wherein

the processor is further configured to

convert the version of the packet to the reference version if the version of the packet is successfully identified.

5. The multiplexing apparatus of claim 1, wherein

the multiplexer is further configured to

multiplex packets whose versions are identical to the reference version or packets whose versions are converted into the reference version by the processor, based on a determination result made by the processor.

6. The multiplexing apparatus of claim 1, further comprising:

a controller configured to

send packets whose versions are identical to the reference version to the multiplexer, based on a determination result made by the processor.

7. The multiplexing apparatus of claim 1, further comprising:

a controller configured to

send packets whose versions are converted to the reference version by the processor to the multiplexer, based on a determination result made by the processor.

8. The multiplexing apparatus of claim 1, wherein

the video transmission standard has a plurality of versions, from a latest version to an original version, and

the processor is further configured to

determine whether a version of an input packet is identical to the reference version, with the latest version regarded as the reference version.

9. The multiplexing apparatus of claim 8, wherein

the processor is further configured to

identify the version of the packet based on comparison with a plurality of versions other than the latest version if the identified version is different from the reference version, the versions used by the processor for comparison including versions from a second latest version to the original version.

10. A multiplexing method for use in a multiplexing apparatus which multiplexes a plurality of input packets,

the method comprising:

identifying a version of video transmission standard for each of the input packets;

converting a version of a packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version; and

multiplexing the input packets, based on the reference version.

11. The method of claim 10, further comprising:

identifying a version of a packet based on comparison with a plurality of predetermined versions if the identified version is different from the reference version.

12. The method of claim 11, further comprising:

discarding the packet if the version of the packet fails to be identified.

13. The method of claim 10, wherein

multiplexing the input packets comprises

multiplexing packets whose versions are identical to the reference version or packets whose versions are converted into the reference version.

14. The method of claim 10, wherein

the video transmission standard has a plurality of versions, from a latest version to an original version, and

identifying the version of the packet comprises

determining whether a version of an input packet is identical to the reference version, with the latest version regarded as the reference version.

15. The method of claim 14, further comprising:

identifying the version of the packet based on comparison with a plurality of versions other than the latest version if the identified version is different from the reference version, the versions used for comparison including versions from a second latest version to the original version.