| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 01/06/1998 | US5706359 Handheld microphone with a shockmount system |
| 01/06/1998 | US5706358 Magnetic audio transducer with hinged armature |
| 01/06/1998 | US5706353 Recording and/or reproducing apparatus |
| 01/06/1998 | US5706345 Over the head hands free phone holder |
| 01/06/1998 | US5706335 Method and appartus for transmitting coded audio signals through a transmission channel with limited bandwidth |
| 01/06/1998 | US5704578 Front-locking swivel ball loudspeaker mount |
| 01/06/1998 | US5704069 Cover for sealing ring of an earmuff |
| 12/31/1997 | CN1169093A Miniature electro-acoustic converter |
| 12/31/1997 | CN1169092A Loud-speaker system |
| 12/30/1997 | US5703957 Directional microphone assembly |
| 12/29/1997 | EP0814633A1 Digital loudspeaker with sound volume control |
| 12/24/1997 | WO1997048502A1 Vibration generator for reporting and portable communication equipment using the same |
| 12/24/1997 | WO1997048296A1 Acoustical earmuff with incorporated snap-in foam cushion |
| 12/24/1997 | CA2229859A1 Acoustical earmuff with incorporated snap-in foam cushion |
| 12/23/1997 | US5701355 Microphone for a two way radio |
| 12/23/1997 | US5701354 Telephone mouthpiece for preventing wind noises and method for reducing wind noises input thereto |
| 12/23/1997 | US5701277 Electro-acoustic transducers |
| 12/18/1997 | WO1997048252A1 Method and apparatus for localization of an acoustic source |
| 12/16/1997 | US5699438 Speaker mounting system |
| 12/11/1997 | WO1997047117A1 Communications terminal having a single transducer for handset and handsfree receive functionality |
| 12/10/1997 | EP0812124A2 Piezoelectric speaker |
| 12/10/1997 | CN2270334Y Microphone sound wave receiving enhancing apparatus |
| 12/10/1997 | CN2270333Y Stone loudspeaker box |
| 12/10/1997 | CN2270332Y Direct deflecting stone loudspeaker box |
| 12/09/1997 | US5696831 Audio reproducing apparatus corresponding to picture |
| 12/09/1997 | US5696359 Portable loudspeaker/directional microphone peripheral |
| 12/09/1997 | US5696357 Bass-reflex loudspeaker |
| 12/09/1997 | US5696356 Passive sound gathering apparatus |
| 12/09/1997 | CA2081038C Electret transducer array and fabrication technique |
| 12/04/1997 | WO1997046048A1 Superdirective microphone arrays |
| 12/04/1997 | WO1997046047A1 Passive radiator and system comprising the passive radiator |
| 12/04/1997 | WO1997046046A1 Electrodynamic loudspeaker and system comprising the loudspeaker |
| 12/04/1997 | WO1997045829A1 Protective cover assembly having sound transmission characteristics |
| 12/04/1997 | DE19622307A1 Large bass loudspeaker box for theatre, stage or concert hall |
| 12/04/1997 | DE19621191A1 Loudspeaker chassis with central fixture for loudspeaker housing |
| 12/03/1997 | EP0810812A2 Differential microphone assembly with passive suppression of resonances |
| 12/03/1997 | EP0810811A2 Speaker |
| 12/03/1997 | EP0810810A2 Digital loudspeaker and sound reproduction system employing such a loudspeaker |
| 12/03/1997 | EP0809920A1 Underwater acoustic projector |
| 12/03/1997 | CN1166767A Speaker assembly for radiotelephone |
| 12/02/1997 | US5694475 Acoustically transparent earphones |
| 12/02/1997 | US5694375 Ultra-broadband hydrophone |
| 12/02/1997 | US5693916 Method for designing loud speaker enclosures |
| 12/02/1997 | US5692661 Sports harness for a portable radio/cassette player |
| 12/02/1997 | CA2046416C Hearing aid for persons with an impaired hearing faculty |
| 11/28/1997 | CA2177400A1 Thin full range speaker system |
| 11/27/1997 | DE19622302A1 Loudspeaker system for uniform sound distribution |
| 11/26/1997 | EP0809412A2 Loudspeaker system |
| 11/25/1997 | US5692060 Unidirectional microphone |
| 11/25/1997 | US5692059 Two active element in-the-ear microphone system |
| 11/25/1997 | US5691516 Tunable vibration absorber |
| 11/25/1997 | US5691515 Rearward sound enhancing apparatus |
| 11/25/1997 | US5691514 For wearing on a person's head |
| 11/25/1997 | US5690886 Method for molding a speaker grille |
| 11/25/1997 | CA2060661C Device for improving bass reproduction in loudspeaker systems with closed housing |
| 11/19/1997 | EP0807992A1 Logarithmic spiral array |
| 11/19/1997 | EP0807990A1 Circularly symmetric, zero redundancy, planar array antenna |
| 11/19/1997 | EP0806922A1 Earmuff |
| 11/19/1997 | EP0806909A1 Earmolds for two-way communication devices |
| 11/19/1997 | EP0784844A4 A tactile sensation generator |
| 11/19/1997 | CN2268349Y Disposable microphone cover |
| 11/19/1997 | CN1165468A Thin wall coaxial multi-layer barrel-shaped louderspeaker box with audio-frequency amplifier capable of tuning according to sound chamber |
| 11/18/1997 | US5689573 Frequency-dependent amplitude modification devices for acoustic sources |
| 11/18/1997 | US5689570 Sound reproducing array processor system |
| 11/13/1997 | WO1997042747A1 Acoustic horn for use in cellular flip phones |
| 11/13/1997 | WO1997042745A1 Michrophone in a speech communicator |
| 11/13/1997 | CA2253387A1 Acoustic horn for use in cellular flip phones |
| 11/12/1997 | EP0806882A2 Sub-woofer loudspeaker enclosure |
| 11/12/1997 | CN2267592Y Connection means for sound box |
| 11/11/1997 | US5687245 Sampled chamber transducer with enhanced low frequency response |
| 11/11/1997 | US5687244 Bone conduction speaker and mounting system |
| 11/11/1997 | US5687231 Articulated headset |
| 11/06/1997 | WO1997041709A1 Audio system that can be mounted on the body of a user |
| 11/06/1997 | WO1997041453A1 Acoustic source i |
| 11/06/1997 | DE19713897A1 Videoanzeigegerät mit einem Mechanismus zum Haltern eines Lautsprechers A video display apparatus with a mechanism for supporting a loudspeaker |
| 11/05/1997 | EP0723733A4 Microphone system for teleconferencing system |
| 11/05/1997 | CN2266850Y Microphone mouthpiece fixing holder with improved structure |
| 11/05/1997 | CN2266417Y Ultrasonic wave surface sterilizer |
| 11/04/1997 | US5684882 System for selective sound capture for reverberant and noisy environment |
| 11/04/1997 | US5684880 Noise cancelling microphone for full coverage style helmets |
| 11/04/1997 | US5684756 Noise reducing screen devices for in-flow pressure sensors |
| 11/04/1997 | US5684722 Apparatus and method for generating a control signal for a tactile sensation generator |
| 11/03/1997 | CA2174455A1 Compact speaker system with silencer |
| 10/30/1997 | WO1997040506A1 Variable capacitor |
| 10/30/1997 | DE19634303A1 High fidelity loudspeaker arrangement |
| 10/30/1997 | DE19616870A1 Am Körper eines Benutzers lagerbare Schallwiedergabevorrichtung The body of a user storable sound reproducing apparatus |
| 10/29/1997 | EP0803792A2 Notebook computer speakers |
| 10/29/1997 | EP0803170A1 Integral radio and infrared assistive listening device |
| 10/29/1997 | CN2266242Y Inverting type speaker system |
| 10/29/1997 | CN1163549A Loudspeaker system for TV set |
| 10/29/1997 | CN1163548A Loudspeaker system |
| 10/29/1997 | CN1163547A Loud speaker system for TV set |
| 10/28/1997 | US5682436 Multipoint driving loudspeaker having repulsion magnetic-type driving unit |
| 10/28/1997 | US5682435 Apparatus comprising a baffle and a loudspeaker, and loudspeaker for use in the apparatus |
| 10/28/1997 | US5682434 Wearable audio system with enhanced performance |
| 10/28/1997 | US5682424 Telephone mouthpiece protective cover |
| 10/28/1997 | US5682418 Structure for mounting a microphone on a portable radio telephone |
| 10/28/1997 | US5681023 Damping support member for audio reproduction components, particularly speaker enclosures |
| 10/28/1997 | CA1339519C Loudspeaker |
| 10/22/1997 | EP0802521A2 Transducer for sending and/or receiving of acoustic signals |