Process for, concurrently, storing and accessing video data for different requesters, reading out different parts and having different startings times; and a process for, concurrently, storing and accessing multiple data files on the same storage medium for different requesters, reading out different parts and having different starting times

摘要

A data accessing process with multiple read pick-up heads and/or multiple read/write heads and, where each head along with its independent control circuit can independently access the same data, concurrently, and read out different parts at the same or different times. The most important fields for my multiple, concurrent, separate access process are DVD, LAN and other storage systems, and Internet servers where data that is frequently accessed and often long, so that the server is tied up for long periods of time. THE PROBLEM THIS PROCESS IS MEANT TO ADDRESS IS, SIMPLY, CONCURRENT, MULTIPLE REQUESTS FOR PARTS OR ALL OF THE SAME DATA. This patent also addresses three other problems: the process of controlling the multiple pick-up heads, the location and the arrangement of the pick-ups, and the design of the pick-ups, such that they can be arranged as closely as possible, thus increasing the number of pick-up heads per disc.