Abstract: The invention provides a method and apparatus for providing a synchronized multichannel universal serial bus, the method in one aspect comprising supplementing the signal channels in the USB specification to provide synchronization information from an external source, and in another aspect comprising observing USB traffic and locking a local clock signal of a USB device to a periodic signal contained in USB data traffic, wherein the locking is in respect of phase and/or frequency.
Type:
Grant
Filed:
July 17, 2003
Date of Patent:
May 26, 2009
Assignee:
Chronologic Pty Ltd.
Inventors:
Peter Graham Foster, Clive Alexander Goldsmith, Patrick Klovekorn, Adam Mark Weigold