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Frame Adjust Counter

IP.com Disclosure Number: IPCOM000007075D
Original Publication Date: 2002-Feb-22
Included in the Prior Art Database: 2002-Feb-22

Publishing Venue


Related People

Edward J. Yurchik Carl Wojewoda Eric Overtoom Jay Cantrell


In a system that is routing audio between two devices that have different clock masters, timing differences need to be collected and processed so that adjustments can be made to minimize audio distortion. In the system described herein, a Frame Adjust Counter collects timing differences between a Serial Audio Port (SAP) and a universal serial bus (USB) device interface. A software algorithm processes the differences and adjusts the Start Of Frame on the USB interface responsive to the detected difference.