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公开(公告)号：US07012964B1
公开(公告)日：2006-03-14
申请号：US09719791
申请日：1999-04-16
申请人： Hiroshi Nakano , Yasuo Iwasaki , Yoshihiro Murakami , Tetsuya Iwamoto , Katsumi Tahara , Hitoshi Sakamoto , James Hedley Wilkinson
发明人： Hiroshi Nakano , Yasuo Iwasaki , Yoshihiro Murakami , Tetsuya Iwamoto , Katsumi Tahara , Hitoshi Sakamoto , James Hedley Wilkinson
CPC分类号： H04N21/8547 , H04N5/77 , H04N9/7925 , H04N9/8042 , H04N9/806 , H04N19/132 , H04N19/172 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/89 , H04N21/235 , H04N21/2389 , H04N21/435 , H04N21/4385
摘要： Data indicative of a transfer mode of a transmission packet may be inserted into a payload portion contained in a serial digital transfer interface (SDTI) transmission packet. Also, data indicative of a timing mode of the transmission packet may be inserted into this payload portion. As the transfer mode, there may be provided a synchronous transfer mode and an isochronous transfer mode in addition to an asynchronous transfer mode. A timing mode may prescribe a timing mode in which a transmission packet may be transferred in synchronism with a field of a transmission frame. There may be provided a normal mode using a first field, an advanced mode using a second field and a dual mode using both fields. Depending upon the manner in which the timing mode is set, a system delay between the transmission and the reception can be minimized.
摘要翻译： 可以将指示传输分组的传输模式的数据插入到包含在串行数字传输接口（SDTI）传输分组中的有效载荷部分中。 此外，可以将表示发送分组的定时模式的数据插入该有效载荷部分。 作为传送模式，除了异步传送模式之外，还可以提供同步传送模式和等时传送模式。 定时模式可以规定发送分组可以与传输帧的字段同步地传送的定时模式。 可以提供使用第一场的正常模式，使用第二场的高级模式和使用两个场的双模式。 根据定时模式的设置方式，传输和接收之间的系统延迟可以最小化。
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公开(公告)号：US06834083B1
公开(公告)日：2004-12-21
申请号：US09719792
申请日：2001-03-26
IPC分类号： H04N712
CPC分类号： H04N21/4342 , G11B27/032 , G11B27/3027 , G11B2220/90 , H04N5/765 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N21/23602
摘要： This invention relates to a data transmission method or the like for use in transmitting video data, audio data or the like. There is transmitted a serial digital transfer interface transmission packet in which an interval of each line of a video frame comprises an end synchronizing code area into which an end synchronizing code is inserted, an ancillary data area into which ancillary data is inserted, a start synchronizing code area into which a start synchronizing code is inserted and a payload area. Into the payload area, there are inserted first data containing extension data having stream information and second data containing main data comprising video data and/or audio data at the picture unit of video data. The stream information is information which indicates whether or not the picture unit belongs to a pre-roll interval located ahead of an editing interval, whether or not the picture unit belongs to an editing interval and whether or not the picture unit belongs to a post-roll interval located behind an editing interval. A reception side becomes able to positively edit data on a VTR, for example, by effectively utilizing the stream information.
摘要翻译： 本发明涉及用于传输视频数据，音频数据等的数据传输方法等。 发送串行数字传输接口传输分组，其中视频帧的每行的间隔包括其中插入结束同步代码的结束同步码区域，辅助数据插入到其中的辅助数据区域，开始同步 代码区域，其中插入开始同步代码和有效负载区域。 在有效载荷区域中，插入包含具有流信息的扩展数据的第一数据和包含视频数据和/或音频数据的主数据的第二数据在视频数据的图像单元。 流信息是指示图像单元是否属于编辑间隔之前的前贴片间隔的信息，图像单元是否属于编辑间隔，以及图像单元是否属于后期编辑间隔， 滚动间隔位于编辑间隔之后。 接收侧能够通过例如有效利用流信息来正确编辑VTR上的数据。
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公开(公告)号：US06980731B1
公开(公告)日：2005-12-27
申请号：US09719696
申请日：1999-04-16
CPC分类号： H04N9/8205 , G11B27/034 , G11B27/323 , H04N9/804 , H04N9/8066 , H04N21/235 , H04N21/2353 , H04N21/2368 , H04N21/23892 , H04N21/4325 , H04N21/435 , H04N21/43632 , H04N21/4396 , H04N21/8133
摘要： This invention relates to a data transmission method or the like suitable for transmitting video data, audio data or the like. There is transmitted a serial digital transfer interface transmission packet in which an interval of each line of a video frame comprises an end synchronizing code area into which an end synchronizing code is inserted, an ancillary data area into which ancillary data is inserted, a start synchronizing code area into which a start synchronizing code is inserted and a payload area. The payload area has inserted thereto first data containing extension data having editing point information at the picture unit of video data and second data containing main data comprising video data and/or audio data. The reception side is able to effect a necessary processing such as muting of sounds on the editing point by effectively utilizing editing point information.
摘要翻译： 本发明涉及适合于发送视频数据，音频数据等的数据发送方法等。 发送串行数字传输接口传输分组，其中视频帧的每行的间隔包括其中插入有结束同步代码的结束同步码区域，其中插入辅助数据的辅助数据区域，开始同步 代码区域，其中插入开始同步代码和有效负载区域。 有效载荷区域插入其中包含在视频数据的图像单元上具有编辑点信息的扩展数据的第一数据和包含视频数据和/或音频数据的主数据的第二数据。 接收端能够通过有效地利用编辑点信息来实现编辑点的声音静音等必要的处理。
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公开(公告)号：US08982946B2
公开(公告)日：2015-03-17
申请号：US11879401
申请日：2007-07-17
IPC分类号： H04N7/50 , H04N19/115 , H04N19/426 , H04N19/61 , H04N19/152 , H04N19/107 , H04N19/40
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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公开(公告)号：US08948251B2
公开(公告)日：2015-02-03
申请号：US11879403
申请日：2007-07-17
IPC分类号： H04N7/50 , H04N19/115 , H04N19/426 , H04N19/61 , H04N19/152 , H04N19/107 , H04N19/40
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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公开(公告)号：US20080013627A1
公开(公告)日：2008-01-17
申请号：US11879407
申请日：2007-07-17
IPC分类号： H04B1/66
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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公开(公告)号：US20070263719A1
公开(公告)日：2007-11-15
申请号：US11879401
申请日：2007-07-17
IPC分类号： H04B1/66
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
摘要翻译： 本发明提供一种具有MPEG解码器和MPEG编码器的代码转换器，用于改变作为编码处理的结果获得的GOP结构和编码比特流的比特率。 MPEG编码器接收在过去的编码处理中生成的过去的编码参数作为历史信息，并且通过选择性地使用过去的编码参数来执行当前编码处理，使得当前编码处理被优化。 此外，编码器将过去的编码参数描述为编码比特流中的历史信息，以便在预编码处理中重用历史信息。 即使通过代码转换器重复执行解码和编码处理，视频数据的图像质量也不会劣化。
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公开(公告)号：US08638849B2
公开(公告)日：2014-01-28
申请号：US11879400
申请日：2007-07-17
IPC分类号： H04B1/66
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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公开(公告)号：US20080232464A1
公开(公告)日：2008-09-25
申请号：US11879245
申请日：2007-07-17
IPC分类号： H04N7/26
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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公开(公告)号：US08938000B2
公开(公告)日：2015-01-20
申请号：US11879406
申请日：2007-07-17
IPC分类号： H04N7/50 , H04N19/115 , H04N19/426 , H04N19/61 , H04N19/152 , H04N19/107 , H04N19/40
CPC分类号： H04N19/0006 , H04N19/10 , H04N19/107 , H04N19/115 , H04N19/152 , H04N19/40 , H04N19/428 , H04N19/61
摘要： The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
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