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Class Information
Number: 381/312
Name: Electrical audio signal processing systems and devices > Hearing aids, electrical
Description: Subject matter having a small ambient sound reproducing system wherein an output transducer transmits directly into the ear or skull for use by the hard of hearing to increase the sound level received by the ear (i.e., listening assistance).










Sub-classes under this class:

Class Number Class Name Patents
381/313 Directional 304
381/316 Frequency transposition 137
381/317 Noise compensation circuit 255
381/314 Programming interface circuitry 328
381/315 Remote control, wireless, or alarm 345
381/322 Specified casing or housing 690
381/320 Spectral control 280
381/321 Wideband gain control 238
381/319 With vacuum tube amplifier 6


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
8712063 Synchronization of sound generated in binaural hearing system Apr. 29, 2014
8712077 Methods and apparatus for processing audio signals Apr. 29, 2014
8712078 Headset systems and methods Apr. 29, 2014
8712081 Real ear measurement system using thin tube Apr. 29, 2014
8712082 Wireless updating of hearing devices Apr. 29, 2014
8705783 Methods and systems for acoustically controlling a cochlear implant system Apr. 22, 2014
8693715 Hearing assistance system and method Apr. 8, 2014
8693716 Hearing device with analog filtering and associated method Apr. 8, 2014
8687832 Hearing aid system with feedback arrangement to predict and cancel acoustic feedback, method and use Apr. 1, 2014
8682014 Audio device with a voice coil channel and a separately amplified telecoil channel Mar. 25, 2014
8682012 Signal processing method Mar. 25, 2014
8681999 Entrainment avoidance with an auto regressive filter Mar. 25, 2014
8670355 System and method for network based hearing aid compatible mode selection Mar. 11, 2014
8670582 N band FM demodulation to aid cochlear hearing impaired persons Mar. 11, 2014
8670583 Hearing aid system Mar. 11, 2014
8666314 Bluetooth transmission facility for hearing devices, and corresponding transmission method Mar. 4, 2014
8666084 Method and arrangement for training hearing system users Mar. 4, 2014
8660281 Method and system for a multi-microphone noise reduction Feb. 25, 2014
8660282 Amplification circuit and hearing aid Feb. 25, 2014
8660285 Accessory adapter for cochlear implant system providing simultaneous T-mic and external audio input Feb. 25, 2014
8660658 Speech processor cases Feb. 25, 2014
8655001 In-the-canal hearing aid using two microphones Feb. 18, 2014
8654999 System and method of progressive hearing device adjustment Feb. 18, 2014
8654998 Hearing aid apparatus Feb. 18, 2014
8649524 Method and apparatus for using haptics for fitting hearing aids Feb. 11, 2014
8649538 Hearing aid having multiple sound inputs and methods therefor Feb. 11, 2014
8649539 Method for processing the signals from two or more microphones in a listening device and listening device with plural microphones Feb. 11, 2014
8649542 Hearing aid with amorphous loudspeaker shielding Feb. 11, 2014
8644538 Method for improving the comprehensibility of speech with a hearing aid, together with a hearing aid Feb. 4, 2014
8644539 Hearing aid having improved RF immunity to RF electromagnetic interference produced from a wireless communications device Feb. 4, 2014
8644537 Expanding binaural hearing assistance device control Feb. 4, 2014
8644534 Recording medium Feb. 4, 2014
8641595 Automatic gain control for implanted microphone Feb. 4, 2014
8644533 Method and apparatus for hearing assistance device microphones Feb. 4, 2014
8638962 Method to reduce feedback in hearing aids Jan. 28, 2014
8638961 Hearing aid algorithms Jan. 28, 2014
8638960 Hearing aid with improved localization Jan. 28, 2014
8638949 System for evaluating hearing assistance device settings using detected sound environment Jan. 28, 2014
8634565 Audio signal processing apparatus, audio signal processing method, and program Jan. 21, 2014
8634566 Method for loudness-based adjustment of the amplification of a hearing aid and associated hearing aid Jan. 21, 2014
8634580 Sound message recording system for a hearing aid Jan. 21, 2014
8625830 Modular hearing device Jan. 7, 2014
8622885 Methods and apparatus for aligning antennas of low-powered intra- and extra-oral electronic wireless devices Jan. 7, 2014
8620013 Communication system and hearing device Dec. 31, 2013
8611571 Binaural hearing apparatus and method for operating a binaural hearing apparatus with frequency distortion Dec. 17, 2013
8611570 Data storage system, hearing aid, and method of selectively applying sound filters Dec. 17, 2013
8611569 Hearing system with a user preference control and method for operating a hearing system Dec. 17, 2013
8611568 Hydrophobic ABS plastics material for casings Dec. 17, 2013
8605922 Antenna system with parasitic element for hearing aid compliant electromagnetic emission Dec. 10, 2013
8605924 Hearing apparatus including transponder detection and corresponding control method Dec. 10, 2013

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