公开(公告)号：US5805826A

公开(公告)日：1998-09-08

申请号：US574345

申请日：1995-12-18

申请人： In Kim ,  Yang-Hun Choi ,  Dong-Soo Choi ,  Sung-Min Her

发明人： In Kim ,  Yang-Hun Choi ,  Dong-Soo Choi ,  Sung-Min Her

IPC分类号： G06T1/60 ,  G06F13/28 ,  G06T9/00 ,  H03M7/30 ,  H04N7/24 ,  H04N7/60 ,  H04N19/00 ,  G06F13/42

CPC分类号： H04N21/236 ,  H04N19/42 ,  H04N19/61 ,  H04N21/434 ,  H04N7/24

摘要： An apparatus for transmitting compressed video data includes a data interfacing circuit, a data connecting circuit, a decompression unit, and a CPU. The data interfacing circuit receives and stores compressed video data, generates a first control signal in response to receipt of the compressed video data, identifies an address bus and a data bus used for transmitting the compressed video data and then generates a hold permission signal in response to receipt of a hold request signal. The data interfacing circuit also provides output of the compressed video data in response to receipt of an address control signal. The decompression unit generates a data request signal to request input of said compressed video data. The decompression unit receives the compressed video data from the data interfacing circuit and decompresses the compressed video data to generate a motion picture in response to receipt of a data permission signal. The data connecting circuit generates the hold request signal in response to receipt of a second control signal and the data request signal, generates the address control signal in response to receipt of said hold permission signal, and generates a transmission state signal indicating that transmission of the compressed video data to the decompression unit is complete. The CPU generates the second control signal in response to receipt of the first control signal, and generates a third control signal to clear the data connecting circuit in response to receipt of the transmission state signal.

摘要翻译： 用于发送压缩视频数据的装置包括数据接口电路，数据连接电路，解压缩单元和CPU。 数据接口电路接收并存储压缩视频数据，响应于接收压缩视频数据产生第一控制信号，识别用于发送压缩视频数据的地址总线和数据总线，然后产生响应中的保持许可信号 以接收保持请求信号。 响应于接收到地址控制信号，数据接口电路还提供压缩视频数据的输出。 解压缩单元产生要求输入所述压缩视频数据的数据请求信号。 解压缩单元从数据接口电路接收压缩的视频数据，并解压缩压缩的视频数据，以响应于接收到数据允许信号而生成运动图像。 数据连接电路响应于接收到第二控制信号和数据请求信号而生成保持请求信号，响应于接收到所述保持许可信号而产生地址控制信号，并产生传输状态信号， 压缩视频数据到解压缩单元完成。 响应于接收到第一控制信号，CPU产生第二控制信号，并且响应于接收到传输状态信号而产生第三控制信号以清除数据连接电路。

公开(公告)号：US5634040A

公开(公告)日：1997-05-27

申请号：US574346

申请日：1995-12-18

申请人： Sung-min Her ,  Yang-hun Choi ,  Dong-soo Choi ,  In Kim

发明人： Sung-min Her ,  Yang-hun Choi ,  Dong-soo Choi ,  In Kim

IPC分类号： G09G5/00 ,  G06F3/14 ,  G06F15/00 ,  G09G5/377 ,  G06F15/16

CPC分类号： G06F3/14 ,  G09G2340/02

摘要： An integrated data communication card installed in an ISA bus slot of a multimedia personal computer capable of performing communication and overlay functions and of reducing load for the computer. Such an integrated data communication card comprises a network connector connected to a network terminal for enabling transmission of data to and from a communication network; a system connector connected to a central processing unit of the computer for enabling data transmission to and from the computer; a data processor communicable with a storage device and the network connector, for processing data in an asynchronous transfer mode received from or transmitted to the network in response to a system control signal or a first control signal; a decoder for decoding the data determined not to be processed through the network in response to the system control signal, and for decoding data determined to represent compressed motion picture data in response to a second control signal; an overlay processor for generating image overlays from the decoded data for display on a video monitor; and a transmission controller for generating the first and second control signals under control of the system control signal.

摘要翻译： 安装在多媒体个人计算机的ISA总线插槽中的集成数据通信卡，能够执行通信和覆盖功能并减少计算机的负载。 这样的集成数据通信卡包括连接到网络终端的网络连接器，用于能够将数据传送到通信网络和从通信网络传送数据; 连接到所述计算机的中央处理单元的系统连接器，用于使能到所述计算机的数据传输; 可与存储设备和网络连接器通信的数据处理器，用于响应于系统控制信号或第一控制信号处理从或从网络接收或传输到网络的异步传送模式的数据; 解码器，用于响应于所述系统控制信号对被确定为不被所述网络处理的数据进行解码，以及响应于第二控制信号解码确定为表示压缩运动图像数据的数据; 覆盖处理器，用于从解码数据生成图像叠加，以便在视频监视器上显示; 以及传输控制器，用于在系统控制信号的控制下产生第一和第二控制信号。