公开(公告)号：EP0768798A3

公开(公告)日：1999-09-15

申请号：EP96116091.8

申请日：1996-10-08

申请人： FUJITSU LIMITED

发明人： Nakayama, Mikio, c/o Fujitsu Limited ,  Kawataka, Miyuki, c/o Fujitsu Limited ,  Matsumura, Naoya, Fujitsu Advanced Comm. Syst. Ltd ,  Takeda, Takayuki, Fujitsu Advanced Comm. Syst. Ltd

IPC分类号： H04N7/24

CPC分类号： H04Q11/0478 ,  H04N19/124 ,  H04N19/126 ,  H04N19/60 ,  H04N21/4305 ,  H04N21/64307

摘要： It is disclosed a transmission apparatus for a fixed length cell handling image communication method wherein moving picture data are compressed to data having a fixed transmission rate using a compression method for still pictures and then converted into fixed length cells so that image processing such as compression/decompression of the moving picture data can be performed at a high rate while keeping a high compression ratio and a high picture quality. Said apparatus includes an image data compression section (3) for performing still picture compression processing for moving picture data, which define information of a plurality of screens individually divided into a plurality of fields to be successively transmitted per unit time, in response to field timing information representative of a compression timing of each field to convert the moving picture data into variable length data which are independent of each other, a transmission buffer section (4) for converting the variable length data into fixed length data having a fixed transmission rate, and a fixed length cell transmission section (5) for placing the fixed length data and the field timing information into data parts of fixed length cells and transmitting the fixed length cells.

公开(公告)号：EP0768798A2

公开(公告)日：1997-04-16

申请号：EP96116091.8

申请日：1996-10-08

申请人： FUJITSU LIMITED

发明人： Nakayama, Mikio, c/o Fujitsu Limited ,  Kawataka, Miyuki, c/o Fujitsu Limited ,  Matsumura, Naoya, Fujitsu Advanced Comm. Syst. Ltd ,  Takeda, Takayuki, Fujitsu Advanced Comm. Syst. Ltd

IPC分类号： H04N7/24

CPC分类号： H04Q11/0478 ,  H04N19/124 ,  H04N19/126 ,  H04N19/60 ,  H04N21/4305 ,  H04N21/64307

摘要： It is disclosed a transmission apparatus for a fixed length cell handling image communication method wherein moving picture data are compressed to data having a fixed transmission rate using a compression method for still pictures and then converted into fixed length cells so that image processing such as compression/decompression of the moving picture data can be performed at a high rate while keeping a high compression ratio and a high picture quality. Said apparatus includes an image data compression section (3) for performing still picture compression processing for moving picture data, which define information of a plurality of screens individually divided into a plurality of fields to be successively transmitted per unit time, in response to field timing information representative of a compression timing of each field to convert the moving picture data into variable length data which are independent of each other, a transmission buffer section (4) for converting the variable length data into fixed length data having a fixed transmission rate, and a fixed length cell transmission section (5) for placing the fixed length data and the field timing information into data parts of fixed length cells and transmitting the fixed length cells.

摘要翻译： 公开了一种固定长度单元处理图像通信方法的发送装置，其中使用静态图像的压缩方法将运动图像数据压缩为具有固定传输速率的数据，然后转换成固定长度的单元，使得诸如压缩/ 可以以高速率执行运动图像数据的解压缩，同时保持高压缩比和高图像质量。 所述装置包括图像数据压缩部分（3），用于响应于场定时，对每个单位时间内分别划分为要连续发送的多个场的多个屏幕的信息进行运动图像数据的静止图像压缩处理 用于将运动图像数据转换成彼此独立的可变长度数据的每个场的压缩定时的信息;用于将可变长度数据转换成具有固定传输速率的固定长度数据的传输缓冲器部分（4），以及 用于将固定长度数据和场定时信息放入固定长度单元的数据部分并发送固定长度单元的固定长度单元传输部分（5）。