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Browse by Category: Main > Electrical & Energy
Class Information
Number: 381/59
Name: Electrical audio signal processing systems and devices > Monitoring/measuring of audio devices > Loudspeaker operation
Description: Subject matter where an operating parameter of a sound reproducing transducer is measured or indicated.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8705756 Distributed audio system Apr. 22, 2014
8705755 Statistical analysis of potential audio system configurations Apr. 22, 2014
8687816 Signal processing Apr. 1, 2014
8682002 Systems and methods for transducer calibration and tuning Mar. 25, 2014
8675882 Sound signal processing device and method Mar. 18, 2014
8666083 Intercom headset connection and disconnection responses Mar. 4, 2014
8660272 Parameter setting method and audio apparatus Feb. 25, 2014
8649530 Method and apparatus for canceling non-uniform radiation patterns in array speaker system Feb. 11, 2014
8644519 Electronic devices with improved audio Feb. 4, 2014
8634564 Signal processing device and method, and a program Jan. 21, 2014
8631327 Balancing loudspeakers for multiple display users Jan. 14, 2014
8620003 Embedded audio system in distributed acoustic sources Dec. 31, 2013
8620005 All-digital speaker system device Dec. 31, 2013
8605918 Power saving system and method for loudspeaker Dec. 10, 2013
8594350 Set-up method for array-type sound system Nov. 26, 2013
8588431 Electrical system for a speaker and its control Nov. 19, 2013
8577048 Self-calibrating loudspeaker system Nov. 5, 2013
8577047 Control of a loudspeaker output Nov. 5, 2013
8571225 Method and circuit for testing an audio high-frequency loudspeaker being part of a loudspeaker system Oct. 29, 2013
8571226 Automatic polarity adaptation for ambient noise cancellation Oct. 29, 2013
8565440 Processing audio input signals Oct. 22, 2013
8565441 Method and apparatus for reducing resonance of loudspeaker Oct. 22, 2013
8553916 Method and hearing aid for changing the sequence of program positions Oct. 8, 2013
8542840 Apparatus and method for filtering a signal to match a loudspeaker Sep. 24, 2013
8538039 System for predicting the behavior of a transducer Sep. 17, 2013
8538032 Electrical load detection apparatus Sep. 17, 2013
8532308 Standing wave detection apparatus and method of controlling the same Sep. 10, 2013
8520858 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources Aug. 27, 2013
8515090 Ambient noise removal device Aug. 20, 2013
8494190 Audio signal processing apparatus and audio signal processing method Jul. 23, 2013
8477956 Howling suppression device, howling suppression method, program, and integrated circuit Jul. 2, 2013
8477953 Portable media delivery system Jul. 2, 2013
8452020 Adjustment of acoustic properties based on proximity detection May. 28, 2013
8446126 Power bank apparatus with speaker May. 21, 2013
8446144 Frequency characteristics measuring device May. 21, 2013
8437485 Method and device for improved sound field rendering accuracy within a preferred listening area May. 7, 2013
RE44170 Audio output adjusting device of home theater system and method thereof Apr. 23, 2013
8422704 Speaker array apparatus and method for setting audio beams of speaker array apparatus Apr. 16, 2013
8412285 Speaker module of portable terminal and method of execution of speakerphone mode using the same Apr. 2, 2013
8401200 Electronic device and headset with speaker seal evaluation capabilities Mar. 19, 2013
8401201 Sound processing apparatus and method Mar. 19, 2013
8401202 Speakers with a digital signal processor Mar. 19, 2013
8396229 Musical maternity belt Mar. 12, 2013
8396227 Method of determining the harmonic and anharmonic portions of a response signal of a device Mar. 12, 2013
8391503 Wireless headset noise exposure dosimeter Mar. 5, 2013
8392005 Acoustic design support apparatus Mar. 5, 2013
8385564 Amplifier thermal management Feb. 26, 2013
8379879 Active noise reduction system Feb. 19, 2013
8358787 Method and apparatus for acoustics testing of a personal mobile device Jan. 22, 2013
8355510 Reduced latency low frequency equalization system Jan. 15, 2013

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