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Patent Searching and Data


Title:
TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/115171
Kind Code:
A1
Abstract:
The present invention effectively enables clock synchronization and presentation synchronization in a case where media transmission packets obtained by fragmenting video, audio, or other media for transmission are transmitted via a broadcast signal. A 27 MHz clock synchronized with time information obtained from a time information server is generated. Time information that includes frequency information for the 27 MHz clock and is synchronized with the time information obtained from the time information server is generated. Media for transmission is encoded. The encoded media for transmission is fragmented into prescribed units, and media transmission packets including each fragment are generated. A stream including, in a time-division manner, the media transmission packets, packets having the time information, and packets having a control signal are transmitted via broadcast waves.

Inventors:
KITAZATO, Naohisa (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
KITAHARA, Jun (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
TAKAHASHI, Kazuyuki (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
Application Number:
JP2015/050695
Publication Date:
August 06, 2015
Filing Date:
January 13, 2015
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-K, Tokyo 75, 〒1080075, JP)
International Classes:
H04N21/242; H04H60/13; H04L7/00; H04N21/236; H04N21/4385
Domestic Patent References:
WO2014188960A12014-11-27
Foreign References:
JP2011193058A2011-09-29
Other References:
KYUNGMO PARK ET AL.: "Study of ISO/IEC CD 23008- 1 MPEG Media Transport", ISO/IEC JTC1/SC29/WG11 MPEG/N13089, October 2012 (2012-10-01), pages 1 - 124, XP055306392, Retrieved from the Internet
KAMEYAMA ET AL.: "IPTV Jidai no Digital Hoso Kyokasho", 1ST PRINT, KABUSHIKI KAISHA IMPRESS R&D, 1 April 2010 (2010-04-01), pages 67 - 70 , 74 TO 76, XP008184743
ISO/IEC 14496-12 INFORMATION TECHNOLOGY -CODING OF AUDIO-VISUAL OBJECTS- PART 12: ISO BASE MEDIA FILE FORMAT, 15 September 2012 (2012-09-15), pages 54 - 60, XP008184540
See also references of EP 3101902A4
Attorney, Agent or Firm:
SASAKI, Eiji et al. (Daido Patent Attorneys Partnership Corporation, KSK Bldg. West 8F 3-25-9, Hatchobori, Chuo-K, Tokyo 32, 〒1040032, JP)
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