Video Data Transfer on Limited Bandwidth Buses
Original Publication Date: 1996-Jul-01
Included in the Prior Art Database: 2005-Mar-31
It would be desirable to attach digital Input/Output (I/O) cameras to Universal Serial Bus (USB) and IEEE 1394 buses. USB has a max data rate of 12 Megabits/sec and the IEEE 1394 has a data rate of 200 Megabits/sec moving to 400 Megabits/sec with todays VLSI. The data rate for digital studio quality video is 168 Megabits/sec, the data rate for video conferencing is typically 6 Megabits/sec.. Some operating systems cannot support USB fully as they are not a real time operating system therefore cannot guarantee the bus bandwidth for 50% availability and connect other devices.