SonicData is a technique for broadcasting data to smartphones via audio streams using phone’s built-in microphone. SonicData augments an audio stream in the environment with nearly inaudible high-frequencies, allowing data to be sent to any smartphone in the vicinity using regular speakers and without any need for special hardware and software infrastructure or handshaking requirements. We deta...

This paper presents several techniques for broadcasting multimedia data (audio and video) over the Internet. Internet broadcasting (also called webcasting) techniques have become very important in applications such as Internet (or Web) radio and television, realtime broadcasting of critical data (such as stock prices), distance learning, videoconferencing, and many others. We describe the curre...

This chapter presents several techniques for broadcasting multimedia data (audio and video) over the Internet. Internet broadcasting (also called webcasting) techniques have become very important in applications such as Internet (or Web) radio and television, realtime broadcasting of critical data (such as stock prices), distance learning, videoconferencing, and many others. We describe the cur...

Data hiding systems have emerged as a solution against the piracy problem, particularly those based on quantization have been widely used for its simplicity and high performance. Several data hiding applications, such as broadcasting monitoring and live performance watermarking, require a real-time multichannel behavior.While Digital Signal Processors (DSP) have been used for implementing these...

A Digital TV system is necessary for not only video and audio, but also data processing. Especially in the case of bidirectional broadcasting, it should manage the return channel created by the Internet, PSTN, and so on. Because of many functionalities and multitasking jobs, it needs an Operating System. Embedded Linux, as open source program can increase cost effectiveness in the market and ha...