freepatentsonline.com 141 131 http://www.freepatentsonline.com/ http://www.freepatentsonline.com/images/logo.gif Free Patents Online: Electrical audio signal processing systems and devices http://www.freepatentsonline.com./rssfeed/rsspat381.xml USPTO Class 381 Electrical audio signal processing systems and devices en-us Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Speaker and device using the same]]> http://www.freepatentsonline.com./7634102.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Thermal management system for loudspeaker having internal heat sink and vented top plate]]> http://www.freepatentsonline.com./7634101.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Rigging system for loudspeakers]]> http://www.freepatentsonline.com./7634100.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[High-fidelity earpiece with adjustable frequency response]]> http://www.freepatentsonline.com./7634099.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Methods, devices, and computer program products for operating a mobile device in multiple signal processing modes for hearing aid compatibility]]> http://www.freepatentsonline.com./7634098.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Hearing aid]]> http://www.freepatentsonline.com./7634097.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Amplifier circuit for capacitive transducers]]> http://www.freepatentsonline.com./7634096.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Dynamic tuning of hands-free algorithm for noise and driving conditions]]> http://www.freepatentsonline.com./7634095.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Method for obtaining real ear measurements using a hearing aid]]> http://www.freepatentsonline.com./7634094.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Head related transfer functions for panned stereo audio content]]> http://www.freepatentsonline.com./7634093.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Head related transfer functions for panned stereo audio content]]> http://www.freepatentsonline.com./7634092.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Automated response to and sensing of user activity in portable devices]]> http://www.freepatentsonline.com./7633076.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Sound-wave path-length correcting structure for speaker system]]> http://www.freepatentsonline.com./7631724.html Tue, 15 Dec 2009 08:00:00 EST <![CDATA[Loudspeaker diaphragm and method for manufacturing the same]]> http://www.freepatentsonline.com./7631723.html Tue, 15 Dec 2009 08:00:00 EST