Ref. 070205 MMDigest, Transcribing Player Rolls to MIDI ...

I have developed a simple USB interface for controlling the contact
image sensor [CIS] array that is at the heart of most optical roll
scanning machines.  I will be demonstrating this on February 11th
at the local meeting of the AMICA Founding Chapter (San Francisco
Bay Area).

I am making the design and software for this interface available to
anyone who wants to use it.  This interface uses two chips, one to
handle the USB interface protocol and the other to scan and compress
the file for transmission back to the computer through the USB port.

Those who have older Rollscan-1 circuit boards will be happy to learn
that I have also figured out the register settings that will make that
system correctly clock the array in grayscale mode.  I am working on
fixing a few more bugs in the "Merlin" program.   A modified version
of this program can also control the USB-to-CIS adapter I have made.

Julie Porter