Abstract: A peer-to-peer file sharing system includes a first digital photo frame connected to a network, a second digital photo frame connected to the network, and a server connected to the network. A plurality of files is stored in the first digital photo frame. An address information of the second digital photo frame is stored in the server. The first digital photo frame is capable of acquiring the address information of the second digital photo frame from the server, and transmitting the files to the second digital photo frame directly based on the address information.

Abstract: A multiprocessing system includes, in part, a multitude of processing units each in direct communication with a bus, a multitude of memory units in direct communication with the bus, and at least one shared memory not in direct communication with the bus but directly accessible to the plurality of processing units. The shared memory may be a cache memory that stores instructions and/or data. The shared memory includes a multitude of banks, a first subset of which may store data and a second subset of which may store instructions. A conflict detection block resolves access conflicts to each of the of the banks in accordance with a number of address bits and a predefined arbitration scheme. The conflict detection block provides each of the processing units with sequential access to the banks during consecutive cycles of a clock signal.

Abstract: A system is used for providing content service to a plurality of clients through a wide area network. The system includes a central content server, a plurality of clusters and a connection management server. The central content server has a storage space for storing content. The content clusters are connected to a back-end network. The content clusters are located in the network between the central content server and the wide area network. The content clusters are capable of caching the content transmitted from the central content server, and sending the content to the clients. The connection management server is connected to the back-end network for managing a content connection between the content clusters and the wide area network.