Richard SinnRichard Sinn has been teaching in the Computer Engineering and Computer Science departments at San Jose State University since 1998. He also served as Adjunct Professor at University of Minnesota. In addition to his teaching career, Richard is the Seurity Architect at the Real Time Communication group at Yahoo! Inc. Prior to this he held various senior positions at IBM, Oracle and different Silicon Valley startup companies. Richard is an inventor and has filed over ten invention disclosures (patents). He is also a frequent writer for various magazines and journals, and a frequent speaker at regional and national technology conferences. Read More Read Less