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Class Information
Number: 381/67
Name: Electrical audio signal processing systems and devices > Stethoscopes, electrical
Description: Subject matter forming an instrument used to convey sounds to the ear of a user.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8634570 Sound monitor Jan. 21, 2014
8594339 Power management for medical sensing devices employing multiple sensor signal feature detection Nov. 26, 2013
8577064 Sound capturing and guiding system from stereo speakers packed together in a closed box and heard as stereo sound coming from various directions Nov. 5, 2013
8548174 Modular electronic biosensor with interface for receiving disparate modules Oct. 1, 2013
8498424 Method and apparatus for an adaptive gain control unit Jul. 30, 2013
8483399 Condenser microphone, microphone unit, and blood pressure gauge Jul. 9, 2013
8447043 Piezo element stethoscope May. 21, 2013
8396228 Floating ballast mass active stethoscope or sound pickup device Mar. 12, 2013
8333718 Weighted bioacoustic sensor and method of using same Dec. 18, 2012
8331574 Automatic external defibrillator with enhanced clarity of audible prompts Dec. 11, 2012
8320576 Piezo element stethoscope Nov. 27, 2012
8275140 Transducer for sensing actual or simulated body sounds Sep. 25, 2012
8270623 Devices and methods for testing the operability of audio speakers Sep. 18, 2012
8265291 High sensitivity noise immune stethoscope Sep. 11, 2012
8243940 Medical device with communication, measurement and data functions Aug. 14, 2012
8233631 Medic voice data system Jul. 31, 2012
8200277 Mobile phone with a stethoscope Jun. 12, 2012
8155362 Wireless listening system Apr. 10, 2012
8144887 Electronic stethoscope and the stethoscope auscultation method using the same Mar. 27, 2012
8139785 Sound reinforcement method and apparatus for musical instruments Mar. 20, 2012
8121303 Stethoscope capable of eliminating unwanted sounds and method thereof Feb. 21, 2012
8092396 Electronic auscultation device Jan. 10, 2012
8064610 Ambient noise canceling physiological acoustic monitoring system and method Nov. 22, 2011
8060576 System and method for communicating over a network with a medical device Nov. 15, 2011
8024974 Cantilevered bioacoustic sensor and method using same Sep. 27, 2011
8004572 System for transmitting a video stream over a computer network to a remote receiver Aug. 23, 2011
7998091 Weighted bioacoustic sensor and method of using same Aug. 16, 2011
7991165 Noise rejecting electronic stethoscope Aug. 2, 2011
7976480 Wearable auscultation system and method Jul. 12, 2011
7953230 Method and system for physiological signal processing May. 31, 2011
7940937 Transducer for sensing body sounds May. 10, 2011
7866437 Stethoscope with one-handed operation Jan. 11, 2011
7841445 Dual-sensor stethoscope with electronic sensor Nov. 30, 2010
7806226 Stethoscope with frictional noise reduction Oct. 5, 2010
7806833 Systems and methods for analysis and display of heart sounds Oct. 5, 2010
7735598 Stethoscope head Jun. 15, 2010
7721843 Visual acoustic device May. 25, 2010
7636445 Stethoscope apparatus Dec. 22, 2009
7593534 Transducer for bioacoustic signals Sep. 22, 2009
7559900 Cardiac sensing and detection using subcutaneous ECG signals and heart sounds Jul. 14, 2009
7527123 Patient-friendly stethoscope May. 5, 2009
7520860 Detection of coronary artery disease using an electronic stethoscope Apr. 21, 2009
7393326 Apparatus for screening and diagnosing by dual stethoscopic and Doppler detection Jul. 1, 2008
7346174 Medical device with communication, measurement and data functions Mar. 18, 2008
7319762 Headset with flashing light emitting diodes Jan. 15, 2008
7300406 Medical examination apparatus Nov. 27, 2007
7302290 Heart-activity monitoring with multi-axial audio detection Nov. 27, 2007
7300405 Analysis of auscultatory sounds using single value decomposition Nov. 27, 2007
7291106 Diagnostic system and portable telephone device Nov. 6, 2007
7289634 Electronic stethoscope measurement system and method Oct. 30, 2007

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