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Class Information
Number: 381/335
Name: Electrical audio signal processing systems and devices > Having non-electrical feature (e.g., mounting) > And loudspeaker > Plural diaphragms, compartments, or housings
Description: Subject matter in which there is a) more than one movable membrane within an enclosure, or b) an enclosure having more than one distinct volume, or c) more than one enclosure.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8634586 Ceiling-mounted loudspeaker enclosure Jan. 21, 2014
8605931 Combined headphone set and portable speaker assembly Dec. 10, 2013
8587631 Facilitating communications using a portable communication device and directed sound output Nov. 19, 2013
8577068 Pop-up tweeter Nov. 5, 2013
8526662 Articulating speaker assembly providing for pivotal adjustment of connected first and second members Sep. 3, 2013
8520883 Articulating speaker assembly providing for pivotal adjustment of connected first and second midrange members Aug. 27, 2013
8511422 Flexible multiple speaker support apparatus Aug. 20, 2013
8509468 Apparatus for outputting sound comprising multiple receivers and a common output channel Aug. 13, 2013
8503690 Loudspeaker unit Aug. 6, 2013
8494192 Audio reproducing system and method thereof Jul. 23, 2013
8488816 Electro-acoustic transducer with multi-faced diaphragm assembly Jul. 16, 2013
8477954 Controlling audio signals Jul. 2, 2013
8472657 Forming a geometric structure in a device housing to externally provide a hardware element of a mobile telecommunication device Jun. 25, 2013
8467551 Vehicular directional microphone assembly for preventing airflow encounter Jun. 18, 2013
8467557 Coaxial speaker system with improved transition between individual speakers Jun. 18, 2013
8462976 Voice conference system Jun. 11, 2013
8442254 Audio port configuration for compact electronic devices May. 14, 2013
8422721 Sound reproduction systems and method for arranging transducers therein Apr. 16, 2013
8416976 Voice conference system Apr. 9, 2013
8411883 Loudspeaker apparatus and speaker system Apr. 2, 2013
8411892 Aesthetic linear speaker assembly Apr. 2, 2013
8406444 Audio radiation type reflective sound box structure Mar. 26, 2013
8397860 Speaker enclosure Mar. 19, 2013
8396240 Baffle vibration reducing Mar. 12, 2013
8369558 Cup-shaped portable speaker with music player adapter Feb. 5, 2013
8355520 Music player Jan. 15, 2013
8345883 Audio playback method and apparatus using line array speaker unit Jan. 1, 2013
8325968 Speaker Dec. 4, 2012
8325937 Method and apparatus for mounting a battery and a speaker in an information handling system Dec. 4, 2012
8320596 Array speaker system and array microphone system Nov. 27, 2012
8315417 Shippable speaker box Nov. 20, 2012
8311254 Speaker system Nov. 13, 2012
8280095 Mobile apparatus including speaker in sealed sound space, and method of assembling the mobile apparatus Oct. 2, 2012
8275159 Media playback apparatus having speakers with rotatable connecting means Sep. 25, 2012
8275160 Delay time calculation apparatus, delay time calculation method, and storage medium storing program therefor Sep. 25, 2012
8267221 Sound box and electronic device using same Sep. 18, 2012
8265310 Multi-element directional acoustic arrays Sep. 11, 2012
8256566 Speaker enclosure Sep. 4, 2012
8243966 Assembly structure of a flat speaker Aug. 14, 2012
8238572 Speaker device of mobile communication terminal for outputting high quality sound Aug. 7, 2012
8224016 Electroacoustic transducer having multi-channel diaphragm and hearing aid using the same Jul. 17, 2012
8204266 Audio devices Jun. 19, 2012
8199961 Speaker device, installation body for speaker device, and mobile body having speaker device mounted thereon Jun. 12, 2012
8189847 Dual-frequency coaxial earphones with shared magnet May. 29, 2012
8189822 Modular, line-array loudspeaker May. 29, 2012
8175304 Compact loudspeaker system May. 8, 2012
8170223 Constant-beamwidth loudspeaker array May. 1, 2012
8170263 Rigging system for line array speakers May. 1, 2012
8165333 Modular speaker system Apr. 24, 2012
8155370 Audio system and a method for detecting and adjusting a sound field thereof Apr. 10, 2012

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