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公开(公告)号：US10911213B2
公开(公告)日：2021-02-02
申请号：US16735169
申请日：2020-01-06
发明人： Tomoo Yamakage , Tatsuya Tanaka , Yasumichi Hashi , Keita Iwami , Minoru Abe
摘要： A transmitting system includes a variable-length packet multiplexing apparatus and a transmission slotting apparatus. The variable-length packet multiplexing apparatus generates a variable-length packet. The transmission slotting apparatus stores the variable-length packet in slots forming transmission main signals. The transmission slotting apparatus includes a capacity calculator, an extractor, a remainder calculator, a selector, and a slot information multiplexer. The capacity calculator calculates a data capacity of the transmission main signals for one frame. The extractor extracts a byte number of the variable-length packet. The remainder calculator calculates a remaining capacity of the transmission main signals. The selector stores a predetermined data sequence in a region left in the slots, and outputs the slots storing the data sequence. The slot information multiplexer multiplexes slot information and the slots output by the selector.
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公开(公告)号：US11750890B2
公开(公告)日：2023-09-05
申请号：US17342863
申请日：2021-06-09
发明人： Yukihiro Sugawara , Keita Iwami
IPC分类号： H04N21/6405 , H04N21/643 , H04N21/647
CPC分类号： H04N21/6405 , H04N21/647 , H04N21/64322
摘要： According to the present embodiment, there is provided a content delivery apparatus applied to a content delivery system which delivers content, which is sent from a transmission apparatus, to a reception apparatus by a multicast method via an IP network. The content delivery apparatus includes an analyzer configured to detect a start point or an end point of the content by analyzing control information of the content, and a manager configured to control a reception start or a reception end of the content, based on the start point or the end point.
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公开(公告)号：US20170373779A1
公开(公告)日：2017-12-28
申请号：US15700397
申请日：2017-09-11
发明人： Tomoo YAMAKAGE , Tatsuya Tanaka , Yasumichi Hashi , Keita Iwami
IPC分类号： H04J3/06 , H04N21/242
CPC分类号： H04J3/0661 , H04J3/0632 , H04J3/0667 , H04J3/0685 , H04L65/608 , H04L69/28 , H04N21/242 , H04N21/4343 , H04N21/64322
摘要： A transmitting system includes an outputting apparatus and a multiplexing apparatus. The outputting apparatus transmits MMTP packets to which an NTP short format timestamp is added. The multiplexing apparatus multiplexes the MMTP packets. The multiplexing apparatus includes an extractor, a controller, a determiner, a management information generator, a continuity determiner, and a transmission timing adjuster. The transmission timing adjuster writes, for adjustment of a transmission timing of an MMTP packet being close to an MMTP packet in which an NTP short format timestamp value is discontinuous, time information taking a leap second processing into consideration, to the NTP short format timestamp of the MMTP packet.
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公开(公告)号：US10721008B2
公开(公告)日：2020-07-21
申请号：US15700397
申请日：2017-09-11
发明人： Tomoo Yamakage , Tatsuya Tanaka , Yasumichi Hashi , Keita Iwami
IPC分类号： H04J3/06 , H04N21/242 , H04N21/643 , H04N21/434 , H04L29/06
摘要： A transmitting system includes an outputting apparatus and a multiplexing apparatus. The outputting apparatus transmits MMTP packets to which an NTP short format timestamp is added. The multiplexing apparatus multiplexes the MMTP packets. The multiplexing apparatus includes an extractor, a controller, a determiner, a management information generator, a continuity determiner, and a transmission timing adjuster. The transmission timing adjuster writes, for adjustment of a transmission timing of an MMTP packet being close to an MMTP packet in which an NTP short format timestamp value is discontinuous, time information taking a leap second processing into consideration, to the NTP short format timestamp of the MMTP packet.
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5.发明申请公开(公告)号：US20180006747A1
公开(公告)日：2018-01-04
申请号：US15706068
申请日：2017-09-15
发明人： Tomoo YAMAKAGE , Tatsuya Tanaka , Yasumichi Hashi , Keita Iwami , Minoru Abe
CPC分类号： H04L7/041 , H04H20/28 , H04H60/07 , H04J3/16 , H04J3/1682 , H04J3/247 , H04L29/06482 , H04L29/0651 , H04L29/08756 , H04L65/601 , H04L65/607 , H04L67/2823 , H04L2007/045 , H04N21/64322
摘要： A transmitting system includes a variable-length packet multiplexing apparatus and a transmission slotting apparatus. The variable-length packet multiplexing apparatus generates a variable-length packet. The transmission slotting apparatus stores the variable-length packet in slots forming transmission main signals. The transmission slotting apparatus includes a capacity calculator, an extractor, a remainder calculator, a selector, and a slot information multiplexer. The capacity calculator calculates a data capacity of the transmission main signals for one frame. The extractor extracts a byte number of the variable-length packet. The remainder calculator calculates a remaining capacity of the transmission main signals. The selector stores a predetermined data sequence in a region left in the slots, and outputs the slots storing the data sequence. The slot information multiplexer multiplexes slot information and the slots output by the selector.
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公开(公告)号：US10574436B2
公开(公告)日：2020-02-25
申请号：US15706068
申请日：2017-09-15
发明人： Tomoo Yamakage , Tatsuya Tanaka , Yasumichi Hashi , Keita Iwami , Minoru Abe
摘要： A transmitting system includes a variable-length packet multiplexing apparatus and a transmission slotting apparatus. The variable-length packet multiplexing apparatus generates a variable-length packet. The transmission slotting apparatus stores the variable-length packet in slots forming transmission main signals. The transmission slotting apparatus includes a capacity calculator, an extractor, a remainder calculator, a selector, and a slot information multiplexer. The capacity calculator calculates a data capacity of the transmission main signals for one frame. The extractor extracts a byte number of the variable-length packet. The remainder calculator calculates a remaining capacity of the transmission main signals. The selector stores a predetermined data sequence in a region left in the slots, and outputs the slots storing the data sequence. The slot information multiplexer multiplexes slot information and the slots output by the selector.
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公开(公告)号：US10063384B2
公开(公告)日：2018-08-28
申请号：US15370914
申请日：2016-12-06
发明人： Tatsuya Tanaka , Keita Iwami , Yasumichi Hashi
IPC分类号： H04L12/18 , H04L12/861 , H04L29/06 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/43 , H04N21/434 , H04N21/643 , H04N21/854
CPC分类号： H04L12/18 , H04L49/9047 , H04L65/4076 , H04L65/602 , H04L69/22 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/4305 , H04N21/434 , H04N21/64322 , H04N21/85406
摘要： According to an embodiment, a multiplexing device includes: a packet generating unit which generates one or more third packets based on at least one of one or more first packets and a second packet; a main signal generating unit which generates from the third packets a main signal; an information generating unit which generates transmission multiplexing control information; a slot generating unit which generates a slot by combining the transmission multiplexing control information and the main signal corresponding to the information described in the transmission multiplexing control information having been generated a predetermined number of frames prior to the currently generated transmission multiplexing control information; and a time writing unit which writes a time in the second packet in the main signal included in the generated slot.
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