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Class Information
Number: 381/58
Name: Electrical audio signal processing systems and devices > Monitoring/measuring of audio devices
Description: Subject matter having an indicator, measuring device, or eavesdropping means.


Sub-classes under this class:

Class Number Class Name Patents
381/59 Loudspeaker operation 178
381/60 Testing of hearing aids 142


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7620469 Method of identifying digital audio signal format Nov. 17, 2009
7613305 Method for treating an electric sound signal Nov. 3, 2009
7610810 Methods for producing acoustic sources Nov. 3, 2009
7610110 Graphically displaying stereo phase information Oct. 27, 2009
7609840 System and method for hierarchical audio conflict control Oct. 27, 2009
7602923 Electro acoustic system built-in test and calibration method Oct. 13, 2009
7593781 Audio feedback test Sep. 22, 2009
7587055 Sound collection system Sep. 8, 2009
7577263 System for audio signal processing Aug. 18, 2009
7574917 Method for in-situ measuring of acoustic attenuation and system therefor Aug. 18, 2009
7574007 Stimulus analysis system and method having adaptive artifact rejection Aug. 11, 2009
7570769 Air leak self-diagnosis for a communication device Aug. 4, 2009
7561697 Adaptive high fidelity reproduction system Jul. 14, 2009
7561698 Auto shutoff for portable audio devices Jul. 14, 2009
7555131 Multi-channel relative amplitude and phase display with logging Jun. 30, 2009
7548625 System and method of audio testing of acoustic devices Jun. 16, 2009
7526094 Normalization and calibration of microphones in sound-intensity probes Apr. 28, 2009
7499554 Electronic devices, methods, and computer program products for detecting noise in a signal based on autocorrelation coefficient gradients Mar. 3, 2009
7492908 Sound localization system based on analysis of the sound field Feb. 17, 2009
7492909 Method for acoustic transducer calibration Feb. 17, 2009
7469051 Method and apparatus for maintaining audio level preferences in a communication device Dec. 23, 2008
7457422 Method and implementation for detecting and characterizing audible transients in noise Nov. 25, 2008
7450474 Diagnostic system and method for transducers Nov. 11, 2008
7450724 Hearing aid adjustment device Nov. 11, 2008
7447318 System for using digital signal processing to compensate for power compression of loudspeakers Nov. 4, 2008
7437935 Continuous chatter boundary criteria for manufactured parts Oct. 21, 2008
7428309 Analog preamplifier measurement for a microphone array Sep. 23, 2008
7428310 Audio output adjusting device of home theater system and method thereof Sep. 23, 2008
7424406 Filter characteristic measuring method and system Sep. 9, 2008
7424333 Audio fidelity meter Sep. 9, 2008
7412375 Speech quality assessment with noise masking Aug. 12, 2008
7409066 Method of adjusting filter parameters and an associated playback system Aug. 5, 2008
7379552 Smart speakers May. 27, 2008
7372966 System for limiting loudspeaker displacement May. 13, 2008
7366577 Programmable analog input/output integrated circuit system Apr. 29, 2008
7349546 System and method for identifying a headset type in an electrical device Mar. 25, 2008
7346172 Auditory alert systems with enhanced detectability Mar. 18, 2008
7336793 Loudspeaker system for virtual sound synthesis Feb. 26, 2008
7333864 System and method for automatic segmentation and identification of repeating objects from an audio stream Feb. 19, 2008
7333519 Method of manually fine tuning audio synchronization of a home network Feb. 19, 2008
7315625 Sound apparatus, method of changing sound characteristics, and data recording medium on which a sound correction program Jan. 1, 2008
7313241 Hearing aid device, and operating and adjustment methods therefor, with microphone disposed outside of the auditory canal Dec. 25, 2007
7286676 Audio apparatus Oct. 23, 2007
7266052 Method for operation optical disc changer using virtual memory Sep. 4, 2007
7260226 Information retrieving method, information retrieving device, information storing method and information storage device Aug. 21, 2007
7249511 Method of detecting resonant frequency, method of selecting resonance frequency, and device for detecting resonant frequency sensor Jul. 31, 2007
7243068 Microphone setup and testing in voice recognition software Jul. 10, 2007
7236573 Method and apparatus for testing telephone sound quality Jun. 26, 2007
7221260 Multi-sensor fire detectors with audio sensors and systems thereof May. 22, 2007
7212130 Sound intensity display system for use by performers May. 1, 2007

1 2 3 4 5


 
 
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