it is possible to encode data in the light by varying the rate at which the leds flicker on and off to give different strings of 1s and 0s.
在led快速通断中,通过光源的变化比率进行可能的编码进行发送0和1。
there is a performance overhead involved with readers/writers because they are intended for character streams, and they encode data to bytes under the covers.
读取器/写入器有性能开销,因为它们旨在用于字符流,且会在后台将数据编码为字节。
the only solution is to encode data to a safe set of characters.
惟一可行的解决方案是将数据编码为一组安全的字符。
both blu-ray and hd dvd encode data on high-density disks using a violet-blue laser.
蓝光和高清影碟都采用紫蓝色激光把数据储存在高清晰度光盘上。