A proposal of distributed music delivery system with Adaptive Jini

In recent years, there have been developed many kinds of embedded devices, such as information appliances, mobile phones, PDAs, with digital music playing function. To meet a growing demand for music playback on such embedded devices, a number of music download services for embedded devices are available on the Internet. Since most embedded devices are not capable of working in cooperation with other devices, they cannot, however, share resources among themselves. For this reason, some embedded devices may not have a software updating function, for they were made for particular purposes. Therefore, when a new music codec comes out in the future, such devices have no means to play music that is encoded with the newly released codec. To address these problems, we propose a distributed music delivery system using Adaptive Jini that a software platform for a network embedded device does not need to have programs to use functions in advance. In the distributed music delivery system, a music player does not have the music content or the decoder needed to play the music requested from a user. By implementing and evaluating the system, we confirm that the system does function as a distributed system for music resource sharing.