查询词典 data buffer

When the floppy disc drive is not writing data to or reading data from the disc, data read from the disc is supplied sector by sector from the buffer memory to the system bus or data to be written to the disc is supplied sector by sector to the buffer memory from the system bus.

当软盘驱动器不是正在将数据写入盘或从盘读取数据时，从盘读取的数据逐个扇区地从缓冲存储器传输到系统总线或待写入盘的数据逐个扇区地从系统总线传输到缓冲存储器。

A memory controller allows a floppy disc drive to intermittently read sector by sector data from the disc for supply to the buffer memory or intermittently write sector by sector to the disc data supplied from the buffer memory.

存储器控制器让软盘驱动器逐个扇区断续地从盘读取传输到缓冲存储器的数据或将从缓冲存储器传输的数据逐个扇区断续地写入盘。

The system further includes an high-level data link control controller for transmitting and receiving a packet data to and from a subscriber wireless connection unit through an HDLC channel, a dynamic random access memory having a first buffer for storing a mobile image packet data transmitted between the HDLC controller and the LAN controller and a second buffer for storing a packet data other than the mobile image, and a CPU for performing the corresponding control function of a packet data routing unit.

系统进一步包括用于通过HDLC信道向/从用户无线连接单元发送/接收分组数据的高级数据链路控制控制器；具有用于存储在HDLC控制器和LAN控制器之间传输的运动图象分组数据的第一缓存器和用于存储运动图象分组数据之外的分组数据的第二缓存器的动态随机存取存储器；和用于执行分组数据路由单元的相应控制功能的CPU。

The controller uses the data write buffer to reduce the data access waiting time, and employs the two ways of duo channels instruction pre-fetch buffer to decrease the fetching instruction waiting time and increase the instruction pre-fetch buffer hit rate. Meanwhile, to reduce the waiting time aroused by page miss of SDRAM, a four ways of on chip stack memory is introduced. Compared with traditional controller through experiments the novel SDRAM controller gets a high reduction up to 63% in access waiting time and 64% in page miss.

该控制器采用数据写缓存方式降低了数据在存取内存时的等待时间；并引入了两组双通道预取指令缓冲器，每组双通道都用以减少取指令时的等待时间，采用两组的结构是为了增加指令预取的命中率；同时还使用了四路组关联的片上堆栈存储器来降低SDRAM的页失效频率，从而降低了因页失效而需要等待的时钟周期。

This high-speed element is used as a "scratch pad" to temporarily store data and instructions that are likely to be retrieved many times during processing.Processing speed can thus be improved.Data may be transferred automatically between the buffer and primary storage so that the buffer is usually invisible to the application programmer.Once found only in large systems,cache memory is now avaliable in some of the tiny microprocessor chips used in personal computers.

该高速存储器可用作"便笺"，暂时存放那些在处理中很可能多次查询的数据和指令，这样可提高处理速度，由于数据在这个高速缓冲器和主存之间可自动传输，所以该告诉缓冲存储器对应用程序员来讲通常是不可见的，过去只在较大的计算机系统中才有的高速缓冲存储器，现在在一些用于个人计算机系统的很小的微处理器芯片中也采用了。

Furthermore, each subprogram is independence, such as SDRAM controller, data buffer, video signal controller and so on, which can be used for other design.

另外，设计中的各个子模块相对独立，比如SDRAM控制器，数据缓存模块，视频信号控制模块等等，可以直接应用于其他的设计之中。

The coding device for DVD system and other record systems includes audio and video coder to convert the input audio and video data into audio and video data stream; system coder to convert the audio and video data stream into audio and video data stream of, say, MPEG format; audio and video data stream buffer before the system coder to store audio and video data stream generated during one set period by the audio and video coder; and buffer downstream the system coder with relatively low capacity and capable of performing the record operation of pre-trigger.

提供了在DVD系统等记录系统中使用的编码设备。该编码设备包括分别把输入音频和视频数据转换成音频和视频数据流的音频和视频编码器、把音频和视频数据流转换成例如MPEG格式的音频／视频数据流的系统编码器。还包括系统编码器上游的音频和视频流缓冲器，它们分别存储音频和视频编码器在一段预选的时间内产生的音频和视频数据流，从而使系统编码器下游的缓冲器的容量较小并有效地进行预触发器记录操作。

This changed principle is: Normally the circumstance falls, the number with acquiescent TCP/IP accepts the size of buffer to be 576 byte according to transmitting unit, if set the size of this buffer more greatly, once a certain TCP/IP in group when data happening is wrong, all cent inter block in buffer of so whole data is allowed, will be lost and undertake; undertakes transmission afresh ceaselessly apparently conveying afresh, can affect ADSL to transmit the efficiency of data greatly.

这个更改的原理是：通常情况下，TCP/IP默认的数据传输单元接受缓冲区的大小为576字节，要是将这个缓冲区的大小设置得比较大的话，一旦某个TCP/IP分组数据发生错误时，那么整个数据缓冲区中的所有分组内容，都将被丢失并且进行重新传送；显然不断地重新进行传输，会大大影响ADSL传输数据的效率。

In a method providing sub-code data to a host computer in an optical disc drive formed so that data from a pick-up is reproduced through a buffer, the method includes the operations of setting sub-code data whenever data of a predetermined unit is output from the buffer, and transmitting the set sub-code data to the host computer when the sub-code data is requested from the host computer during the reproduction mode.

用于在光盘驱动器中向主计算机提供子代码数据从而通过一个缓冲器将来自拾音器的数据重现而构成的方法中，该方法包括步骤：只要从缓冲器输出预定单元的数据，就设置子代码数据，以及在重现期间，当主计算机请求子代码数据时，将该设置的子代码数据传送给主计算机。

When a too-long data string goes into the buffer, any excess is written into the area of memory immediately following that reserved for the buffer -- which might be another data storage buffer, a pointer to the next instruction or another program's output area.

当太长的数据串进入缓冲区时，超过部分马上被写入紧跟在为缓冲区保留的存储区域后面的区域，它可能是另一个数据存储缓冲区、下一个指令的指针或者另一个程序的输出区域。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。