A method and system for measuring angular speed of an object uses a micromechanical filter apparatus and allows Q-multiplication in both drive and sense modes. The intervertebral disk prosthesis has a base plate, a top plate opposite the base plate, and an intervening core located between the top plate and base plate. In one embodiment of the invention, each client browser that connects to the proxy server is assigned an instance of the proxy browser and session information is maintained for the client browser.