The H-Bus: A Media
Acquisition Bus Optimized for Multiple Streams
Jeffrey Wong, John A. Watlington, and V. Michael Bove, Jr.
MIT Media Laboratory
Proc. SPIE
Multimedia Hardware Architectures 1997, 3021, 1997.
The H-Bus is a dedicated input bus designed for transmitting digital
media streams from multiple sources to one acquiring host device.
Unlike previous solutions to this problem which utilized a star
topology to connect each source to a bank of analog-to-digital
converters in the host device, the H-Bus places the A/D converters at
each of the sources and uses a linear topology to connect the devices
together in one contiguous chain. In this paper we explain the
engineering requirements which motivated our design, describe the
electrical and physical characteristics of, and applications for, the
H-Bus.