A gaming machine in a gaming establishment enhances its game sounds by attenuating ambient noise in the establishment. The gaming machine includes a microphone, processing circuitry, and an audio speaker. The microphone detects ambient noise and generates a noise signal from the sensed ambient noise....http://www.google.fr/patents/US20030114214?utm_source=gb-gplus-shareBrevet US20030114214 - Gaming machine with ambient noise attenuation
Numéro de demande: 10/026,579 Numéro de publication: US 2003/0114214 A1 Date de dépôt: 19 déc. 2001 Brevet délivré: US7112139 ( Date de délivrance 26 sept. 2006)
