Title:
RE-MULTIPLEXING DEVICE, BROADCAST SYSTEM, RE-MULTIPLEXING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM HAVING PROGRAM STORED THEREIN
Document Type and Number:
WIPO Patent Application WO/2022/009684
Kind Code:
A1
Abstract:
Provided are a re-multiplexing device, a broadcast system, a re-multiplexing method, and a program that, in the case of broadcasting broadcast data of a first resolution and broadcast data of a second resolution, enable realization of synchronous outputting. A re-multiplexing device (2) has a first re-multiplexing unit (2a) and a second re-multiplexing unit (2b). The second re-multiplexing unit (2b) inserts, at a timing corresponding to a timing of a head packet in an OFDM frame, a delay control packet which includes control information for compensating a difference in delay times between a first circuit and a second circuit. In that case, the second re-multiplexing unit (2b) generates, as the control information, an index value of a waiting time, in a transmission device (3), from a time point where the delay control packet has been received to a time when modulation processing on a packet subsequent to the delay control packet starts.
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Inventors:
HOTAKA TOMOAKI (JP)
Application Number:
PCT/JP2021/023861
Publication Date:
January 13, 2022
Filing Date:
June 23, 2021
Export Citation:
Assignee:
NEC PLATFORMS LTD (JP)
International Classes:
H04H20/28; H04H20/44; H04N21/236; H04N21/24
Domestic Patent References:
| WO2018155544A1 | 2018-08-30 |
Foreign References:
| JP2015095679A | 2015-05-18 |
Other References:
SHIRAI, NORIYUKI: "SFN Field Experiment Using IP Multiplexing Scheme for Next- generation Terrestrial Broadcasting System. Proceedings of the 2018 LTE Annual Convention [ CD- ROM", RE-MULTIPLEXING DEVICE AND MODULATOR SPECIFICATIONS, 15 August 2018 (2018-08-15), pages 1 - 2
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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