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| Number | Title | Issue Date |
| 8184815 | Microphone unit for stereophonic recording To provide a microphone unit for stereophonic recording capable of adjusting an intersecting angle of sound collecting axes in accordance with conditions without impairing directivity and sound quality of the microphone. Respective rotation bases (408, 508) a... | 05/22/2012 |
| 8184814 | Audio signal processing method and system The invention makes use of impulse responses of the performance venue to process a recording or other signal so as to emulate that recording having being recorded in the performance venue. In particular, by measuring or calculating the impulse responses of a perform... | 05/22/2012 |
| 8170220 | Image sensing apparatus with selectably combinable microphone signals to obtain desired directivity Provided is an image sensing apparatus in which directivity can be changed in accordance with the position of the shooter. The image sensing apparatus includes a video shooting unit, at least four microphones placed around the video shooting unit, and an audio signa... | 05/01/2012 |
| 8139776 | Wireless receiving apparatus and electronic appliance A wireless receiving apparatus that includes a connector including a plurality of terminals. A predetermined terminal is assigned as an identification terminal for identifying an electronic appliance connected to the connector, and a circuit for generating an identi... | 03/20/2012 |
| 8090109 | Apparatus for processing audio signal and method thereof An apparatus for processing an audio signal and method thereof applied to an audio playback system are disclosed. The apparatus comprises a decoder, an error-correcting circuit and an audio correcting module. The method for processing audio signals in accordance wit... | 01/03/2012 |
| 8041043 | Processing microphone generated signals to generate surround sound Surround sound recording is a tedious task requiring the use of many microphones. The invention aims at enabling the use of two-channel microphones (or stereo microphones) for multi-channel surround recording. A conventional stereo microphone, or a two-channel micro... | 10/18/2011 |
| 7991163 | Communication system, apparatus and method A system and method for generating, transmitting and distributing audio signals. The system and method may include an array having a plurality of microphones and a plurality of speakers as well as a first processor disposed proximate the array. The system and method... | 08/02/2011 |
| 7386133 | System for determining the position of a sound source A method and system for determining the position of a sound source in relation to a reference position, comprising the steps of generating a sound signal emitted from the sound source, detecting the emitted sound signal, processing the sound signal by the use of a p... | 06/10/2008 |
| 7366308 | Sound pickup device, specially for a voice station The invention relates to a sound recording device for a public address system. Sound is emitted from a sound source, picked up by at least two sound sensors and converted into electrical signals. The sound sensors are located at a distance from a reference position ... | 04/29/2008 |
| 7359520 | Directional audio signal processing using an oversampled filterbank A directional signal processing system for beamforming information signals. The system includes an oversampled filterbank, which has an analysis filterbank for transforming the information signals in time domain into channel signals in transform domain, a synthesis ... | 04/15/2008 |
| 7333622 | Dynamic binaural sound capture and reproduction A new approach to capturing and reproducing either live or recorded three-dimensional sound is described. Called MTB for “Motion-Tracked Binaural,” the method employs several microphones, a head tracker, and special signal-processing procedures to combine the si... | 02/19/2008 |
| 7324649 | Hearing aid device, comprising a directional microphone system and a method for operating a hearing aid device The invention relates to a hearing aid with a signal processing unit (14) and at least two microphones (1, 2, 3) which can be coupled together to form directional microphone systems of a different order, where microphone signals (11, 12, 13) emi... | 01/29/2008 |
| 7313179 | Minimizing windowing effects in particular for signal recovery A measured signal, such as a high-speed digital pulse, transmitted through a system is corrected. The measured signal is sampled to a sampled signal sequence, and a signal series is provided as a plurality of the sampled signal sequences put together successively. T... | 12/25/2007 |
| 7254238 | Method and circuit for headset listening of an audio recording The invention concerns a circuit for adapting the signals from different channels (L, R) delivered by an audio reproduction system (10) in conditions specific to headset listening. It comprises: means (14a) for producing a left-channel intermedi... | 08/07/2007 |
| 7224992 | Four pole stereo headset with push to talk capability in a duplex radio A stereo headset (104) with push-to-talk function can be interfaced with a wireless communication device (102) via a connector interface. The connector interface preferably includes a jack at the wireless communication device (102) and a compati... | 05/29/2007 |
| 7224385 | Video camera with multiple microphones and audio processor producing one signal for recording A video camera capable of recording and/or reproducing multiple channel audio signals and video signals simultaneously in a single recording medium in such a manner as to reproduce omnidirectional ambient sounds as surround sound. The video camera includes a number ... | 05/29/2007 |
| 7197151 | Method of improving 3D sound reproduction A method of improving 3D sound reproduction is described, in which virtual sound sources to be positioned behind a listener 10 are filtered using an HF-cut filter in order to remove distracting high-frequency components caused by incomplete transaural crossta... | 03/27/2007 |
| 7167567 | Method of processing an audio signal A method of processing a single channel audio signal to provide an audio source signal having left and right channels corresponding to a sound source at a given direction in space, includes performing a binaural synthesis introducing a time delay between the channel... | 01/23/2007 |
| 7149315 | Microphone array for preserving soundfield perceptual cues A sound-capturing arrangement uses a set of directional microphones that lie approximately on a sphere having a diameter of 0.9 ms sound travel, which approximates the inter-aural time delay. Advantageously, one directional microphone points upward, one directional ... | 12/12/2006 |
| 7146013 | Microphone system The microphone system of the invention executes an adaptive filter processing by using output signals from two microphones to output a speaker's voice signal with an improved SN ratio, in which the two microphones are laid out close to each other, and the angles for... | 12/05/2006 |
| 7146014 | MEMS directional sensor system A MEMS directional sensor system capable of determining direction from a microphone to a sound source over a wide range of frequencies is disclosed. By utilizing a parallel filter bank that relies on a slow wave structure in a MEMS device, such as described herein, ... | 12/05/2006 |
| 7133532 | Hearing protection and communication assembly The speaker head is inserted into the protective ear insert and into one of the wearer's ears so that the audio signal is audible to the wearer in a loud environment where exterior noise is muffled by the protective ear insert and the speaker head is shielded from c... | 11/07/2006 |
| 7126583 | Interactive vehicle display system An interactive display system for a vehicle including a heads up display system for projecting text and/or graphics into a field of view of a forward-facing occupant of the vehicle and an occupant-controllable device enabling the occupant to interact with the heads ... | 10/24/2006 |
| 7123727 | Adaptive close-talking differential microphone array A method and apparatus for providing a differential microphone with a desired frequency response are disclosed. The desired frequency response is provided by operation of a filter, having an adjustable frequency response, coupled to the microphone. The frequency res... | 10/17/2006 |
| 7116791 | Microphone array system The present invention provides a sound signal processing function comprising a plurality of kinds of sound signal processing with the same arrangement of microphones that does not require replacement of the microphones or the sound signal processing part regardless ... | 10/03/2006 |
| 7095865 | Audio amplifier unit Face of a listener (user) is photographed by a CCD camera, and a face width and auricle size of the listener are detected on the basis of the picture of the listener's face. Head-related transfer functions, which are transfer functions of sounds propagated from virt... | 08/22/2006 |
| 7085387 | Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources A sound system for capturing and reproducing sounds produced by a plurality of sound sources. The system comprises a device for receiving sounds produced by the plurality of sound sources and converting the separately received sounds to a plurality of separate audio... | 08/01/2006 |
| 7082201 | Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method A three-dimensional sound reproducing apparatus is configured by cascading a sound field effect adding unit and a crosstalk canceling unit. The sound field effect adding unit adds a predetermined three-dimensional sound field effect to an input audio signal, thereby... | 07/25/2006 |
| 7076068 | Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method A three-dimensional sound reproducing apparatus is configured by cascading a sound field effect adding unit and a crosstalk canceling unit. The sound field effect adding unit adds a predetermined three-dimensional sound field effect to an input audio signal, thereby... | 07/11/2006 |
| 7065219 | Acoustic apparatus and headphone A headphone section 10 having microphone elements 14L, 14R for detecting a sound around the user and signal acoustic transducing elements 15L, 15R which function as a sound source for canceling the sound around the user housed in t... | 06/20/2006 |
| 7035416 | Microphone array apparatus A microphone array apparatus includes a microphone array including microphones, one of the microphones being a reference microphone, filters receiving output signals of the microphones, and a filter coefficient calculator which receives the output signals of the mic... | 04/25/2006 |
| 7027775 | Method of automatic frequency-setting for wireless microphone-receivers The present invention relates to a method of automatically setting each of frequencies in each of a plurality of wireless microphone-receivers simultaneously used in the same area, based on the combinations of simultaneously usable frequencies. Each of microphone-re... | 04/11/2006 |
| 7012630 | Spatial sound conference system and apparatus The spatial sound conference system enables participants in a teleconference to distinguish between speakers even during periods of interruption and overtalk, identify speakers based on spatial location cues, understand low volume speech, and block out background no... | 03/14/2006 |
| 7010131 | Quasi-differential power amplifier and method A quasi-differential power amplifier and method are disclosed that enhance drive capability and dynamic range by driving a right, left and common terminals with a right channel output signal, a left channel output signal, and a common mode output signal that are eac... | 03/07/2006 |
| 6980661 | Method of and apparatus for producing apparent multidimensional sound The production of multidirectional or instantaneous live virtual surround sound broadcasting is obtained by positioning a plurality of microphones on an oval frame in a predetermined pattern and with a predetermined orientation, connecting the microphones to a virtu... | 12/27/2005 |
| 6975731 | System for producing an artificial sound environment A method for simulating an artificial sound environment including sending an ultrasound reference signal to a headphone assembly worn by a user having two ears, the headphone assembly audibly providing at least one audio signal to each of the ears, processing arriva... | 12/13/2005 |
| 6961433 | Stereophonic sound field reproducing apparatus In the stereophonic sound field reproducing apparatus for reproducing a stereophonic sound field, at the time of using, a signal processing unit (4) executes a process on signals to reproduction-use minispeakers (6L1 through 6LN, 6... | 11/01/2005 |
| 6954538 | Remote control apparatus and a receiver and an audio system In regard to an audio system using a plurality of speakers, various settings, adjustment and compensation of a receiver are enabled. A remote control apparatus which can operate and adjust a multi-channel receiver includes a transmitter for transmitting data to the ... | 10/11/2005 |
| 6950531 | Industrial hearing protection and communication assembly An industrial hearing protection and communication assembly including a frame having a front frame member that, includes a substantially transparent shatterproof eye panel disposed to shield a wearer's eyes, and at least one protective ear insert structured to be fi... | 09/27/2005 |
| 6904152 | Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions Techniques of making a recording of or transmitting a sound field from either multiple monaural or directional sound signals that reproduce through multiple discrete loud speakers a sound field with spatial harmonics that substantially exactly match those of the ori... | 06/07/2005 |
