Don't know if this is the correct venue to report ID's... here goes:
Canon LV-53 (LCD projector)
reports:
[ 141.689172] usb 4-1: new full speed USB device number 2 using ohci_hcd
[ 141.838345] usb 4-1: New USB device found, idVendor=0474, idProduct=0801
[ 141.838354] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
(Vendor seems Sanyo, but I suspect the projector's internals are Sanyo's)
Hope this helps
John