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/rssapp381.xml USPTO Class 381 Electrical audio signal processing systems and devices en-us Thu, 16 May 2013 08:00:00 EDT <![CDATA[Displaying Sound Indications On A Wearable Computing System]]> http://www.freepatentsonline.com/y2013/0124204.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[DECODING DEVICE, ENCODING DEVICE, AND METHODS FOR SAME]]> http://www.freepatentsonline.com/y2013/0124201.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Analog Circuit And Semiconductor Device]]> http://www.freepatentsonline.com/y2013/0122963.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[HEADSET STRUCTURE]]> http://www.freepatentsonline.com/y2013/0121524.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[ELECTRIC COMPONENT HAVING A SHALLOW PHYSICAL SHAPE, AND METHOD OF MANUFACTURE]]> http://www.freepatentsonline.com/y2013/0121523.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[COAXIAL SPEAKER SYSTEM HAVING A COMPRESSION CHAMBER WITH A HORN]]> http://www.freepatentsonline.com/y2013/0121522.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[DIAPHRAGM FOR AN ELECTROPNEUMATIC HORN SYSTEM]]> http://www.freepatentsonline.com/y2013/0121521.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[PROTECTION STRUCTURE AND PORTABLE ELECTRONIC DEVICE USING SAME]]> http://www.freepatentsonline.com/y2013/0121520.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[HEARING AID RETAINER ACCESSORY]]> http://www.freepatentsonline.com/y2013/0121519.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[EAR DEVICE FOR IMPROVED FIT AND SOUND]]> http://www.freepatentsonline.com/y2013/0121518.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[METHOD AND APPARATUS FOR ADDING AUDIBLE NOISE WITH TIME VARYING VOLUME TO AUDIO DEVICES]]> http://www.freepatentsonline.com/y2013/0121517.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[SYSTEM AND METHOD FOR SOUND REPRODUCTION]]> http://www.freepatentsonline.com/y2013/0121516.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[LOUDSPEAKERS WITH POSITION TRACKING]]> http://www.freepatentsonline.com/y2013/0121515.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[FLEXIBLE PIEZOELECTRIC SOUND-GENERATING DEVICES]]> http://www.freepatentsonline.com/y2013/0121514.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[OPENING TYPE BONE CONDUCTION EARPHONE]]> http://www.freepatentsonline.com/y2013/0121513.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[AUDIO AMPLIFIER]]> http://www.freepatentsonline.com/y2013/0121512.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[User-Guided Audio Selection from Complex Sound Mixtures]]> http://www.freepatentsonline.com/y2013/0121511.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[CONTROLLING TERMINAL APPARATUS, CONTROL METHOD AND PROGRAM]]> http://www.freepatentsonline.com/y2013/0121510.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Sound Transducer with Interdigitated First and Second Sets of Comb Fingers]]> http://www.freepatentsonline.com/y2013/0121509.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Non-Speech Content for Low Rate CELP Decoder]]> http://www.freepatentsonline.com/y2013/0121508.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING]]> http://www.freepatentsonline.com/y2013/0121507.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Online Source Separation]]> http://www.freepatentsonline.com/y2013/0121506.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[MICROPHONE ARRAY CONFIGURATION AND METHOD FOR OPERATING THE SAME]]> http://www.freepatentsonline.com/y2013/0121505.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[MICROPHONE ARRAY WITH DAISY-CHAIN SUMMATION]]> http://www.freepatentsonline.com/y2013/0121504.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[LOCATION-INDEXED AUDIO CONTENT]]> http://www.freepatentsonline.com/y2013/0121503.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[VEHICULAR SOUND PROCESSING APPARATUS AND VEHICULAR APPARATUS]]> http://www.freepatentsonline.com/y2013/0121502.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[ACTIVE NOISE CONTROL APPARATUS FOR INTAKE SYSTEM OF VEHICLE]]> http://www.freepatentsonline.com/y2013/0121501.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[DRIVING OF PARAMETRIC LOUDSPEAKERS]]> http://www.freepatentsonline.com/y2013/0121500.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Frequency Domain Signal Processor For Close Talking Differential Microphone Array]]> http://www.freepatentsonline.com/y2013/0121499.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[NOISE REDUCTION USING MICROPHONE ARRAY ORIENTATION INFORMATION]]> http://www.freepatentsonline.com/y2013/0121498.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[System and Method for Acoustic Echo Cancellation Using Spectral Decomposition]]> http://www.freepatentsonline.com/y2013/0121497.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[VISUALLY-BASED FITTING OF HEARING DEVICES]]> http://www.freepatentsonline.com/y2013/0121496.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Sound Mixture Recognition]]> http://www.freepatentsonline.com/y2013/0121495.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[Ear Coupling Status Sensor]]> http://www.freepatentsonline.com/y2013/0121494.html Thu, 16 May 2013 08:00:00 EDT <![CDATA[COMPUTER-READABLE STORAGE MEDIUM STORING INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD]]> http://www.freepatentsonline.com/y2013/0120569.html Thu, 16 May 2013 08:00:00 EDT