公开(公告)号：EP0664651A3

公开(公告)日：1996-03-13

申请号：EP95100573.5

申请日：1995-01-17

申请人： HITACHI, LTD.

发明人： Kinoshita, Taizo ,  Saito, Atsushi ,  Mimura, Itaru

IPC分类号： H04N7/26 ,  H04N7/173 ,  H04N5/926 ,  H04N7/32

CPC分类号： H04N5/9261 ,  H04N5/85 ,  H04N19/124 ,  H04N19/139 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： In a video transmission system, raw video data input from an input device (ID) are transformed into coded data through a variable bit-rate coder (11T), and are written into storage equipment (3T) such as an optical disk device via a butter (21T). During the transmission, the coded data are read out from the storage equipment (3T) and are transmitted, via a buffer (22T) to a transmission line (N) at a low speed, at a high speed or at a varying speed different from the real-time transmission speed. In a video receiver, the coded data are received from the transmission line (N) via a buffer (22R) and are written into storage equipment (3R). To reproduce the data, a variable bit-rate decoder (41R) reads the coded data from storage equipment (3R) via a buffer (21R), decodes the initial video data, and displays them on a display device (OD).

公开(公告)号：EP0901261A3

公开(公告)日：2002-10-30

申请号：EP98116657.2

申请日：1998-09-03

申请人： Hitachi, Ltd.

发明人： Mimura, Itaru ,  Suzuki, Toshiaki ,  Shibata, Koichi

IPC分类号： H04L29/06

CPC分类号： H04L29/06027 ,  H04L29/06 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4084 ,  H04L69/08 ,  H04N21/23614 ,  H04N21/2381 ,  H04N21/64322 ,  H04N21/64707

摘要： A transfer protocol conversion method and a protocol conversion equipment are disclosed in order to transmits TS packets for a CATV network, a DAVIC network or the like by use of IP packets for the internet. In a network (56) using TS packets, the transmission is made with an internet protocol header (6) stored in a private field of an adaptation field (2; 7; 13; 20) defined in the TS packet. An equipment (62; 302) for protocol conversion between a network (56; 200) using TS packets and an internet (50; 400) forms an IP packet for the internet by use of the header transferred by the private data. Further, lower 8 bits (331) of the IP address of an IP packet and lower 8 bits (332) of the PID value of a TS packet are made the same and upper 24 bits (333) of the IP address are converted into a 5-bit value so that the converted 5-bit value is made to correspond to upper 5 bits (334) of the PID value.

公开(公告)号：EP0939545A2

公开(公告)日：1999-09-01

申请号：EP99103115.4

申请日：1999-02-17

申请人： Hitachi, Ltd.

发明人： Suzuki, Toshiaki ,  Yoshizawa, Satoshi c/o Hitachi America Ltd. ,  Mimura, Itaru ,  Ikezawa, Mitsuru ,  Kameyama, Tatsuya

IPC分类号： H04N5/00

CPC分类号： H04N5/45 ,  H04N5/4401 ,  H04N7/173 ,  H04N7/17336 ,  H04N7/52 ,  H04N19/39 ,  H04N19/61 ,  H04N21/234327 ,  H04N21/4316 ,  H04N21/64792 ,  H04N21/658

摘要： A video server encapsulates video program data, encoded by the scalable coding method, into packets, assigns a flag to the packet for each layer and transmits the packet to a video quality control equipment (20) existing on an edge of a network branching to client terminals (11 and 12). The video quality control equipment (20) duplicates and converts video program data, encoded by the scalable coding method, according to quality modes demanded from the client terminals (11 and 12), and serves the video program data thus duplicated and converted to the respective client terminals (11 and 12).

摘要翻译： 视频服务器将由可伸缩编码方法编码的视频节目数据封装成分组，为每层分配一个标志给分组，并将分组发送到分支到客户端的网络边缘上的视频质量控制设备（20） 端子（11和12）。 视频质量控制设备（20）根据客户终端（11和12）所要求的质量模式，复制和转换由可伸缩编码方法编码的视频节目数据，并为这些重复的视频节目数据提供服务并将其转换为相应的 客户终端（11和12）。

公开(公告)号：EP0986220A3

公开(公告)日：2002-08-21

申请号：EP99117384.0

申请日：1999-09-03

申请人： Hitachi, Ltd.

发明人： Yoshizawa, Satoshi ,  Suzuki, Toshiaki ,  Ikezawa, Mitsuru ,  Mimura, Itaru ,  Kameyama, Tatsuya

IPC分类号： H04L12/56 ,  H04L29/06 ,  H04L12/46 ,  H04N1/41

CPC分类号： H04L47/10 ,  H04L47/2441 ,  H04L2012/562 ,  H04L2012/5652 ,  H04L2012/5662 ,  H04Q11/0478

摘要： At each network node, a packet classification unit (10) makes a judgement to transfer only a packet necessary to be processed by software to a packet processing program processor (20) and transfer other packets directly to a routing processor (5). Processing history information (140) indicating the process history executed at each network node on a network route is transferred to the other network nodes so that other network nodes can store the processing history information in respective processing history repository table (24). Each node refers to this table and further transfers only the packet necessary to be processed by software to the packet processing processor.

公开(公告)号：EP0350794A3

公开(公告)日：1992-04-29

申请号：EP89112381.2

申请日：1989-07-06

申请人： HITACHI, LTD.

发明人： Akiyama, Toshiyuki ,  Mimura, Itaru ,  Ozawa, Naoki ,  Takahashi, Kenji ,  Eto, Yoshizumi ,  Matsumoto, Takahiro

IPC分类号： H04N9/093

CPC分类号： H04N9/093

摘要： An image pickup apparatus comprises a two-dimensional filter (7,14) for interpolating the registration discrepancy due to the chromatic aberrations of the lens (1) used, and a two-dimen­sional filter (11,14) for correcting the fixing discrepancy of an image pickup element (10), so that the registration discrepancy may be corrected by guiding video signals from the image pickup element (10) through said two-dimensional filters.

公开(公告)号：EP0986220A2

公开(公告)日：2000-03-15

申请号：EP99117384.0

申请日：1999-09-03

申请人： Hitachi, Ltd.

发明人： Yoshizawa, Satoshi ,  Suzuki, Toshiaki ,  Ikezawa, Mitsuru ,  Mimura, Itaru ,  Kameyama, Tatsuya

IPC分类号： H04L12/56 ,  H04L29/06

CPC分类号： H04L47/10 ,  H04L47/2441 ,  H04L2012/562 ,  H04L2012/5652 ,  H04L2012/5662 ,  H04Q11/0478

摘要： At each network node, a packet classification unit (10) makes a judgement to transfer only a packet necessary to be processed by software to a packet processing program processor (20) and transfer other packets directly to a routing processor (5). Processing history information (140) indicating the process history executed at each network node on a network route is transferred to the other network nodes so that other network nodes can store the processing history information in respective processing history repository table (24). Each node refers to this table and further transfers only the packet necessary to be processed by software to the packet processing processor.

摘要翻译： 在每个网络节点处，分组分类单元（10）进行判断，只将需要由软件处理的分组传送到分组处理程序处理器（20），并将其他分组直接传送到路由处理器（5）。 指示在网络路由上的每个网络节点处执行的处理历史的处理历史信息（140）被传送到其他网络节点，使得其他网络节点可以将处理历史信息存储在相应的处理历史存储库表（24）中。 每个节点参考该表，并且仅将需要由软件处理的分组传送到分组处理处理器。

公开(公告)号：EP0664651A2

公开(公告)日：1995-07-26

申请号：EP95100573.5

申请日：1995-01-17

申请人： HITACHI, LTD.

发明人： Kinoshita, Taizo ,  Saito, Atsushi ,  Mimura, Itaru

IPC分类号： H04N7/26 ,  H04N7/173 ,  H04N5/926 ,  H04N7/32

CPC分类号： H04N5/9261 ,  H04N5/85 ,  H04N19/124 ,  H04N19/139 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： In a video transmission system, raw video data input from an input device (ID) are transformed into coded data through a variable bit-rate coder (11T), and are written into storage equipment (3T) such as an optical disk device via a butter (21T). During the transmission, the coded data are read out from the storage equipment (3T) and are transmitted, via a buffer (22T) to a transmission line (N) at a low speed, at a high speed or at a varying speed different from the real-time transmission speed. In a video receiver, the coded data are received from the transmission line (N) via a buffer (22R) and are written into storage equipment (3R). To reproduce the data, a variable bit-rate decoder (41R) reads the coded data from storage equipment (3R) via a buffer (21R), decodes the initial video data, and displays them on a display device (OD).

摘要翻译： 在视频传输系统中，通过可变比特率编码器（11T）将从输入装置（ID）输入的原始视频数据变换为编码数据，经由光盘装置（3T）经由 黄油（21T）。 在传输期间，编码数据从存储设备（3T）中读出，经由缓冲器（22T）以低速或高速不同的速度以低速传输到传输线（N） 实时传输速度。 在视频接收机中，经由缓冲器（22R）从传输线（N）接收编码数据，并将其写入存储设备（3R）。 为了再现数据，可变比特率解码器（41R）经由缓冲器（21R）从存储设备（3R）读取编码数据，解码初始视频数据，并将其显示在显示设备（OD）上。

公开(公告)号：EP0199129A2

公开(公告)日：1986-10-29

申请号：EP86104084.8

申请日：1986-03-25

申请人： HITACHI, LTD.

发明人： Ozawa, Naoki ,  Akiyama, Toshiyuki ,  Satoh, Kazuhiro ,  Nagahara, Syusaku ,  Mimura, Itaru

IPC分类号： H04N9/04

CPC分类号： H04N9/045

摘要： In a solid-state imaging device, a chrominance signal difference in kind from a signal to be obtained at a specified time among a plurality of chrominance signals to be successively obtained from a solid-state image sensor is interpolated with the pertinent chrominance signal obtained directly before the time, or with the pertinent chrominance signal of a picture element corresponding to the signal to be obtained at the time, as found assuming that a subject be achromatic. Which of the signals is to be used for the interpolation is decided according to the difference between the signal to be obtained at the time and a signal of the same chrominance obtained one cycle before the time, or the differences between signals obtained directly before the time and to be obtained directly after the time and the pertinent chrominance signals obtained one cycle before the times of these signals.

公开(公告)号：EP0901261B1

公开(公告)日：2013-01-09

申请号：EP98116657.2

申请日：1998-09-03

申请人： Hitachi, Ltd.

发明人： Mimura, Itaru ,  Suzuki, Toshiaki ,  Shibata, Koichi

IPC分类号： H04L29/06

CPC分类号： H04L29/06027 ,  H04L29/06 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4084 ,  H04L69/08 ,  H04N21/23614 ,  H04N21/2381 ,  H04N21/64322 ,  H04N21/64707

公开(公告)号：EP0901261A2

公开(公告)日：1999-03-10

申请号：EP98116657.2

申请日：1998-09-03

申请人： Hitachi, Ltd.

发明人： Mimura, Itaru ,  Suzuki, Toshiaki ,  Shibata, Koichi

IPC分类号： H04L29/06

CPC分类号： H04L29/06027 ,  H04L29/06 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4084 ,  H04L69/08 ,  H04N21/23614 ,  H04N21/2381 ,  H04N21/64322 ,  H04N21/64707

摘要： A transfer protocol conversion method and a protocol conversion equipment are disclosed in order to transmits TS packets for a CATV network, a DAVIC network or the like by use of IP packets for the internet. In a network (56) using TS packets, the transmission is made with an internet protocol header (6) stored in a private field of an adaptation field (2; 7; 13; 20) defined in the TS packet. An equipment (62; 302) for protocol conversion between a network (56; 200) using TS packets and an internet (50; 400) forms an IP packet for the internet by use of the header transferred by the private data. Further, lower 8 bits (331) of the IP address of an IP packet and lower 8 bits (332) of the PID value of a TS packet are made the same and upper 24 bits (333) of the IP address are converted into a 5-bit value so that the converted 5-bit value is made to correspond to upper 5 bits (334) of the PID value.

摘要翻译： 公开了传输协议转换方法和协议转换设备，以便通过使用用于因特网的IP分组来传输用于CATV网络，DAVIC网络等的TS分组。 在使用TS分组的网络（56）中，利用存储在TS分组中定义的适配字段（2; 7; 13; 20）的专用字段中的因特网协议报头（6）进行传输。 用于在使用TS分组的网络（56; 200）和互联网（50; 400）之间进行协议转换的设备（62; 302）通过使用由私人数据传送的头部为互联网形成IP分组。 此外，使IP分组的IP地址的低8位（331）和TS分组的PID值的低8位（332）相同，并且将IP地址的高24位（333）转换为 5位值，使得转换的5位值对应于PID值的高5位（334）。