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Browse by Category: Main > Electrical & Energy
Class Information
Number: 381/106
Name: Electrical audio signal processing systems and devices > Including amplitude or volume control > With amplitude compression/expansion
Description: Subject matter having electrical audio signal system combined with provision for decreasing the amplitude range of an applied audio signal or for restoring the full amplitude range of an amplitude compressed audio signal.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8705765 Ringtone enhancement systems and methods Apr. 22, 2014
8676361 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound Mar. 18, 2014
8626322 Multimedia display based on audio and visual complexity Jan. 7, 2014
8615316 Method and an apparatus for processing an audio signal Dec. 24, 2013
8615093 Apparatus and method for processing audio signal Dec. 24, 2013
8605909 Method and device for efficient binaural sound spatialization in the transformed domain Dec. 10, 2013
8606381 Method and device for switching audio recording modes Dec. 10, 2013
8600076 Multiband DRC system and method for controlling the same Dec. 3, 2013
8594345 Automatic correction of loudness level in audio signals Nov. 26, 2013
8588429 Sound device and sound control device Nov. 19, 2013
8588430 Controlling an adaptation of a behavior of an audio device to a current acoustic environmental condition Nov. 19, 2013
8588949 Method and apparatus for adjusting volume levels in a multi-zone system Nov. 19, 2013
8577047 Control of a loudspeaker output Nov. 5, 2013
8571236 Volume control system, controller, and amplifying apparatus Oct. 29, 2013
8553504 Crossfading of audio signals Oct. 8, 2013
8554347 Remote audio amplifier monitoring system Oct. 8, 2013
8538043 Apparatus for processing an audio signal and method thereof Sep. 17, 2013
8526637 Volume control apparatus and program of volume control apparatus Sep. 3, 2013
8521314 Hierarchical control path with constraints for audio dynamics processing Aug. 27, 2013
8515087 Apparatus for processing an audio signal and method thereof Aug. 20, 2013
8515093 Input signal mismatch compensation system Aug. 20, 2013
8515085 Signal processing apparatus Aug. 20, 2013
8503696 Equalizer interface for electronic apparatus Aug. 6, 2013
8498424 Method and apparatus for an adaptive gain control unit Jul. 30, 2013
8498430 Automatic correction of loudness level in audio signals Jul. 30, 2013
8494182 Feedback limiter with adaptive time control Jul. 23, 2013
8488809 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal Jul. 16, 2013
8488810 Audio processing chip and audio signal processing method thereof Jul. 16, 2013
8484018 Data converting apparatus and method that divides input data into plural frames and partially overlaps the divided frames to produce output data Jul. 9, 2013
8472642 Processing of an audio signal for presentation in a high noise environment Jun. 25, 2013
8467547 Audio compressor with feedback Jun. 18, 2013
8462963 System and method for processing audio signal Jun. 11, 2013
8463412 Method and apparatus to facilitate determining signal bounding frequencies Jun. 11, 2013
8452430 Method and an apparatus for processing an audio signal May. 28, 2013
8443179 Method and system for unified audio control on a personal computer May. 14, 2013
8437482 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal May. 7, 2013
8431957 Audio dosage control Apr. 30, 2013
8433079 Modified limiter for providing consistent loudness across one or more input tracks Apr. 30, 2013
8422698 Signal processing apparatus and method, and program Apr. 16, 2013
8416958 Signal processing apparatus Apr. 9, 2013
8406432 Apparatus and method for automatic gain control using phase information Mar. 26, 2013
8407059 Method and apparatus of audio matrix encoding/decoding Mar. 26, 2013
8385556 Parametric stereo conversion system and method Feb. 26, 2013
8379869 Method and system for acoustic shock protection Feb. 19, 2013
8363854 Device and method for automatically adjusting gain Jan. 29, 2013
8364477 Method and apparatus for increasing speech intelligibility in noisy environments Jan. 29, 2013
8364478 Audio signal processing apparatus, audio signal processing method, and communication terminal Jan. 29, 2013
8351621 System and method for excursion limiting Jan. 8, 2013
8345893 Sound volume controller Jan. 1, 2013
8335324 Method and apparatus for automatic volume adjustment Dec. 18, 2012

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