| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 381150000 |
ELECTRO-ACOUSTIC AUDIO TRANSDUCER
| 3734 |
| 381001000 |
BINAURAL AND STEREOPHONIC
| 1915 |
| 381312000 |
HEARING AIDS, ELECTRICAL
| 1710 |
| 381710100 |
ACOUSTICAL NOISE OR SOUND CANCELLATION
| 781 |
| 381058000 |
MONITORING/MEASURING OF AUDIO DEVICES
| 717 |
| 381074000 |
HEADPHONE CIRCUITS
| 562 |
| 381056000 |
MONITORING OF SOUND
| 543 |
| 381104000 |
INCLUDING AMPLITUDE OR VOLUME CONTROL
| 527 |
| 381087000 |
HAVING NON-ELECTRICAL FEATURE (E.G., MOUNTING)
| 498 |
| 381940100 |
NOISE OR DISTORTION SUPPRESSION
| 417 |
| 381077000 |
ONE-WAY AUDIO SIGNAL PROGRAM DISTRIBUTION
| 398 |
| 381092000 |
DIRECTIVE CIRCUITS FOR MICROPHONES
| 393 |
| 381098000 |
INCLUDING FREQUENCY CONTROL
| 376 |
| 381120000 |
WITH AMPLIFIER
| 291 |
| 381086000 |
VEHICLE
| 249 |
| 381066000 |
DEREVERBERATORS
| 236 |
| 381119000 |
WITH MIXER
| 203 |
| 381111000 |
CIRCUITRY COMBINED WITH SPECIFIC TYPE MICROPHONE OR LOUDSPEAKER
| 178 |
| 381061000 |
SOUND EFFECTS
| 143 |
| 381122000 |
HAVING MICROPHONE
| 92 |
| 381123000 |
SWITCHING
| 88 |
| 381730100 |
SOUND OR NOISE MASKING
| 82 |
| 381055000 |
AUDIO TRANSDUCER PROTECTION CIRCUITRY
| 67 |
| 381097000 |
INCLUDING PHASE CONTROL
| 50 |
| 381072000 |
HEARING PROTECTORS, ELECTRICAL
| 45 |
| 381093000 |
FEEDBACK SUPPRESSION
| 37 |
| 381067000 |
STETHOSCOPES, ELECTRICAL
| 26 |
| 381110000 |
VOICE CONTROLLED
| 22 |
| 381118000 |
WITH MUSICAL INSTRUMENT
| 14 |
| 381096000 |
LOUDSPEAKER FEEDBACK
| 11 |
| 381095000 |
MICROPHONE FEEDBACK | 5 |
| 20090046870 | AUTO BIAS MICROPHONE SYSTEM FOR USE WITH MULTIPLE LOADS AND METHOD OF FORMING SAME - An autobias vehicular microphone system ( | 02-19-2009 |
| 20090110213 | PROGRAMMABLE INTEGRATED MICROPHONE INTERFACE CIRCUIT - An integrated circuit for providing programmable microphone interface includes an input terminal for receiving an input signal and an output terminal for providing an output audio signal. The integrated circuit includes a bias circuit, an amplifier circuit, and two feedback circuits. The bias circuit provides a microphone bias signal to the microphone and provides a sensed microphone signal. The amplifier circuit includes a first input, a second input, and an output. The first input is configured to receive the sensed microphone signal, a first feedback signal, and a second feedback signal. The second input is configured to receive a first reference signal. The feedback circuits are in communication with the output and the first input of the amplifier circuit. In a specific embodiment, the first feedback circuit includes an RC circuit and the second feedback circuit includes an integrator. | 04-30-2009 |
| 20130136276 | METHOD AND APPARATUS FOR RECEIVING AND PLAYING A SIGNAL IN A RADIO RECEIVER - A method and apparatus for receiving and playing a signal in a radio receiver to suppress microphonic feedback are provided by alternately pitch shifting a received audio signal. The pitch of the received audio signal is alternately shifted up and then down, repeatedly over successive intervals of the audio signal, to produce a pitch swing signal which is then played over a speaker. The alternating pitch shifting prevents the buildup of regenerative feedback normally caused by acoustic vibrations coupling into the radio receiver. | 05-30-2013 |
| 20140003622 | LOUDSPEAKER BEAMFORMING FOR PERSONAL AUDIO FOCAL POINTS | 01-02-2014 |
| 20150358724 | Feedback Delay Reduction In Force Feedback Devices - A feedback circuit provides a feedback signal to a transducer. The feedback circuit includes an ADC that generates digital representations of a feedback signal, digital controller that identifies adjustments for the feedback, and DAC that generates an analog output of the adjusted feedback signal. The digital controller performs speculative computation to identify adjustments for the feedback signal output for each output value from the ADC prior to receiving the output from the ADC. The ADC and DAC include sigma-delta modulators that operate with a zero clock cycle delay in a forward path. The ADC, digital controller, and DAC generate adjustments to the feedback output signal with reduced delay that reduce phase lag and improve phase margin to maintain stability in the transducer. | 12-10-2015 |
| 381070000 |
ARTIFICIAL LARYNX, ELECTRICAL | 4 |
| 20110051944 | Laryngophone combined with transmitter and power source - A method of transmitting the human voice comprising an apparatus worn around the user's neck that contains a laryngophone (“throat microphone”), a transmitter and a power source. | 03-03-2011 |
| 20130294613 | ELECTROLARYNX DEVICES AND USES THEREOF - The present invention relates to electrolarynx devices and their use. In particular, the present invention relates to methods and compositions (e.g., devices) to provide electrolarynx (EL) users with greater intonation in their speech. | 11-07-2013 |
| 20140079233 | Electrolarynx - An electrolarynx includes a motor having a locating diaphragm, a bobbin, and a magnetic assembly. The bobbin includes a striker and coil wires wound about a coil cylinder of an electromagnet. The locating diaphragm maintains the position of the bobbin along the longitudinal axis of the housing. The magnetic assembly includes a magnet and a non-magnetic guide disc that sandwiches the magnet to the housing. The magnet and the coil wires drive the striker and, in turn, a contact diaphragm in the cap of the electrolarynx that makes contact with a patient's throat to produce vibrations similar to those produced by the larynx. To avoid “gravitational wear” of the coil wires against a magnetic cup used to center the coil wires, the walls of the cup are made thinner and the magnetic cup may be replaced with a non-magnetic cup or the magnetic cup is removed altogether. | 03-20-2014 |
| 20160037247 | ELECTRONIC SPEECH AID DEVICE - An electronic speech aid device to be worn by a wearer, includes an ear plug, a micro-microphone, a processing module and a micro-speaker. The ear plug is to be inserted into an acoustic meatus of the wearer. The micro-microphone is disposed on the ear plug for receiving a larynx sound, which results from attempt by the wearer to speak, from a larynx of the wearer through the acoustic meatus and for converting the larynx sound into a larynx-sound signal. The processing module is electrically connected to the micro-microphone for receiving and processing the larynx-sound signal to output a voice signal. The micro-speaker is electrically coupled to the processing module for receiving and outputting the voice signal. | 02-04-2016 |
| 381124000 |
MISCELLANEOUS | 3 |
| 20090279718 | AUDIO RECORDATION AND REPRODUCTION SPRING CLIPS - A method of releasably securing an article with an audio recording includes handling a binder clip having audio circuitry with recordation and playback capabilities. The binder clip includes a pair of actuating arms and a gripping portion. The audio circuitry is in the form other than that of a cell phone attached to the binder clip. The method additionally includes compressing the pair of actuating arms of the binder clip above the gripping portion to expand the gripping portion and inserting at least a portion of the article into the gripping portion. The method further includes releasing the actuating arms so that the gripping portion grips the portion of the article inside the binder clip and recording audio onto the audio circuitry. | 11-12-2009 |
| 20100278360 | METHOD AND SUPPORT SYSTEM FOR PRESENTING ELECTROPHYSIOLOGICAL MEASUREMENTS | 11-04-2010 |
| 20140093105 | TECHNIQUE FOR GENERATING AUDIO DATA FOR LOOP REPRODUCTION ON THE BASIS OF PERFORMANCE DATA - A sequence of performance data to be loop-reproduced is read out repetitively for at least two cycles, and audio data repeating for at least two cycles are created on the basis of the read-out performance data. Audio data of a second or subsequent cycle of the created audio data have mixed therein a residual portion (release portion or reverberation portion) of a tone generated in a preceding cycle. The audio data of the second or subsequent cycle are stored as audio data for loop reproduction, and thus, the stored audio data for loop reproduction will include a residual portion of a tone generated in a preceding cycle. Thus, if the stored audio data for loop reproduction are reproduced repetitively, it is possible to achieve loop reproduction reflecting therein a residual portion of a tone generated in a preceding cycle. | 04-03-2014 |
| 381075000 |
MEGAPHONES | 3 |
| 20140029760 | MEGAPHONE - A rugged megaphone comprising a body, two opposing handles and a horn and further comprising a rim bumper attached to the tip of the horn; providing a megaphone of superior durability. | 01-30-2014 |
| 20140307892 | AUDIO CONTROL SYSTEM AND ELECTRONIC DEVICE USING SAME - An audio control system installed on an electronic device includes a switch switching between a first mode and a second mode, a switching module, a microphone, a microphone control module, a speaker, a speaker control module, a signal radiating module, and a signal receiving module. When the switch is switched to the first mode, the switching module controls the microphone control module to transmit audio data of microphone to the signal radiating module to radiate the audio data via a wireless network. When the switch is switched to the second mode, the switching module controls the microphone control module to transmit the audio data of microphone to the speaker to make sound via the speaker control module. | 10-16-2014 |
| 20160021472 | MODULAR VOICE AMPLIFICATION SYSTEM FOR PROTECTIVE MASK - Disclosed is a modular voice amplification system for a protective mask that allows connection of a single amplifier assembly to masks of varying configurations through minimal adjustment of the system. Adapter plates in the form of mounting brackets are provided, each of which is configured for attachment to the single amplifier assembly, but is individually configured for attachment to protective masks of varying configurations through differing attachment mechanisms provided on each adapter plate. | 01-21-2016 |
| 381076000 |
LECTERNS | 1 |
| 20130202128 | System and Method for Determining Meter Presence Utilizing Ambient Fingerprints - Systems and methods are disclosed for providing portable device presence utilizing environmental ambient audio fingerprints. Portable devices provide media exposure data and environmental ambient fingerprints to a processing device, where the environmental ambient signatures provide at least one characteristic of the ambient audio surrounding each portable device. The environmental ambient signatures are then processed to determine if they match. Portable devices associated with matching signatures are identified. Ambient fingerprints may also be used to establish a logical location where media exposure took place. The ambient signatures are alternately combined with monitored data to provide more robust data sets for contextual processing. | 08-08-2013 |
