传统的以太网是一个广播型网络，网络中的所有主机通过HUB 或交换机相连，处在 同一个广播域中。HUB 是物理层设备，没有交换功能，接收的报文会向所有端口转...

Embedded Systems Dictionary

,/ k lkl l jlkjk kl lk-,/ k lkl l jlkjk kl lk

十本C语言经典合集 转自北极星书库-10 C language switched from the Polaris Classic Collection Stack

Autonomous indoor mobile robots are gaining increasing popularity for the shared use in military and civil applications. Recently aerial or ground robots of various shapes and sizes have been developed for quick detection and observation of circumstances in calamity environments such as indoor fire spots [1, 2]. In an indoor environment, however, weak reception of GPS signals has posed additional challenges to the operation of the robots. Therefore less expensive self-localization with unaided external sensors is one of the most important problems in popularizing indoor mobile robot products.

Full sheet for lpc2-Full sheet for lpc2888

是一个对直流电动机进行编程的代码，对直流电机的pwm方式控制的编写有一定的指导作用-The DC motor is a programming code of the DC motor pwm control of the preparation of the guiding role of a certain

由于第二代Bandelets变换是由量化步长来控制最佳Bandelet化过程，难以实现定码率图像压缩。为了解决这个问题，提 出了一种通过非线性逼近来控制最佳Bandelet化过程的方法。同时采用了沿几何流的方向小渡变换方法，直接把JPEG2000的编 解码器应用到Bandelets变换系数上进行有效的图像压缩，而无需重新构造上下文模型。实验表明，提出的压缩方法具有很好的边 缘和纹理保护能力，特别对于直线纹理图像，压缩性能优于JPEG2000标准。-Abstract：Image compression based on the second generadon Bandelets transform，whose optimized bandeletization is controlled by quantization step，cannot realize fixed bitrate image compression．To overconae this problem。the paper presents a non-linear approximation method to control the optimized bandeletization．Then，the oriented wavelet transform along geometric flow is adopted． The JPEG2000 codec is direcdy employed on bandelets coefficients to implement effective image compression without changing context model．Experiments show that the proposed compression method exceeds JPEG2000 standard in compression performance and abil畸of image edges and texture preservation．

一个小编辑器，共商-a small editor, together

嵌入式GBA掌机开发源码，注释较少，使用GCC编译-embedded GBA game-source Notes less, the use of the GCC compiler

用于开发智能卡COS系统1234567890123456789-COS for the development of smart card systems 1234567890123456789