A gaming apparatus may comprise a primary display unit, and a value input device. The gaming apparatus may also comprise a first controller operatively coupled to the primary display unit and the value input device. The first controller may include a first microprocessor and a first memory operatively...http://www.google.com/patents/US20040266536?utm_source=gb-gplus-sharePatent US20040266536 - Moving three-dimensional display for a gaming machine
