US Patent 7417511 - MEMS-based spread spectrum clock generation

http://www.freepatentsonline.com/7417511.html

This patent from Lexmark includes some broad claims on the use of microelectromechanical circuits to generate spread spectrum clock signals. Claim 1 reads:

1. A spread spectrum clock generation (SSCG) circuit comprising a MEMS based circuit having a plurality of circuit components configured to generate a spread spectrum clocking signal based on a modulation of a resonant frequency of said MEMS based circuit and an output coupled to at least one of said circuit components to supply said spread spectrum clocking signal.