| Bose Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20120101605 | AUDIO SIGNAL PROCESSING - A method and apparatus for determining if there is a stream of video signals corresponding with a stream of audio signals. If the sample rate of a digital bitstream including is determined. if the sample rate is 48m kHz (where m is an integer), it is determined that there are video signals corresponding to the audio signals. If the sample rate is 44.1m kHz (where m is an integer), it is determined that there are no video signals corresponding to the audio signals. | 04-26-2012 |
| 20120099739 | ESTIMATION OF SYNTHETIC AUDIO PROTOTYPES - An approach to forming output signals both permits flexible and temporally and/or frequency local processing of input signals while limiting or mitigating artifacts in such output signals. Generally, the approach involves first synthesizing prototype signals for the output signals, or equivalently characterizing such prototypes, for example, according to their statistical characteristics, and then forming the output signals as estimates of the prototype signals, for example, as weighted combinations of the input signals. | 04-26-2012 |
| 20120099731 | ESTIMATION OF SYNTHETIC AUDIO PROTOTYPES - An approach to forming output signals both permits flexible and temporally and/or frequency local processing of input signals while limiting or mitigating artifacts in such output signals. Generally, the approach involves first synthesizing prototype signals for the output signals, or equivalently characterizing such prototypes, for example, according to their statistical characteristics, and then forming the output signals as estimates of the prototype signals, for example, as weighted combinations of the input signals. | 04-26-2012 |
| 20120076321 | Single Microphone for Noise Rejection and Noise Measurement - A microphone includes a sensing element having two opposing sides; and a housing including a first acoustic port having an external-facing portion defined in part by a first aperture located on a first housing side and an internal-facing portion defined in part by a first cavity within the housing, the first cavity being coupled to a first side of the element; and a second acoustic port having an external-facing portion defined in part by a second aperture located on the first housing side and an internal-facing portion defined in part by a second cavity within the housing, the second cavity being coupled to a second side of the element. The ports are spaced apart at a distance such that a level of an electrical response by the element to an ambient acoustic noise at 50 dB A-weighted sound pressure level exceeds an internal electrical noise level of the element. | 03-29-2012 |
| 20120076320 | Fine/Coarse Gain Adjustment - Methods and apparatuses for deriving a signal-to-noise ratio based at least in part on a measured level of a signal carrying far-end speech, and a measured level of a signal carrying ambient acoustic noise, determining a target gain adjustment based at least in part on the derived signal-to-noise ratio, including determining a coarse gain adjustment and a fine gain adjustment, the target gain adjustment corresponding to a combination of the coarse gain adjustment and the fine gain adjustment, applying the coarse gain adjustment to the signal carrying far-end speech using first gain adjustment circuitry to produce a first gain-adjusted signal, applying the fine gain adjustment to the signal carrying far-end speech using second gain adjustment circuitry to produce a second gain-adjusted signal, and providing a result of combining the first gain-adjusted signal and the second gain-adjusted signal to audio output from a wireless communications device. | 03-29-2012 |
| 20120076319 | System for Accomplishing Bi-Directional Audio Data and Control Communications - A system for accomplishing bi-directional digital audio data and control communications. There is a host end that includes a host transceiver, a host digital signal processor that outputs a master clock signal and audio data, and a source of low-voltage power for the host components. There are a number of remote nodes connected together serially. Each remote node includes a transceiver and a low-voltage power supply that provides power to the other remote node components. A shielded two-wire communication network connects the host node to one of the remote nodes, and connects each remote node to either one or two other remote nodes in a daisy-chain configuration. The host end is enabled to transmit and receive over the communication network digital audio data and digital control signals. The remote nodes are each enabled to receive over the communication network digital audio data and digital control signals, and are each enabled to transmit over the communication network digital control signals. The source of low-voltage power at the host end is coupled to the communication network. The remote power supplies each have an input coupled to the communication network to derive the power for the remote nodes from the power coupled to the network by the host end. | 03-29-2012 |
| 20120076312 | Noise Level Estimator - Methods and apparatuses for comparing a level of a signal carrying ambient acoustic noise with a threshold level; and based on results of the comparison, ignoring time intervals identified as noise burst in estimating ambient noise levels. | 03-29-2012 |
| 20120076311 | Dynamic Gain Adjustment Based on Signal to Ambient Noise Level - Methods and apparatuses for deriving a signal-to-noise ratio based at least in part on a measured level of a signal carrying far-end speech, and a measured level of a signal carrying ambient acoustic noise; determining a target gain adjustment based at least in part on the derived signal-to-noise ratio; applying the target gain adjustment to the signal carrying far-end speech to produce a gain-adjusted signal; and providing the gain-adjusted signal for audio output from a communications device. | 03-29-2012 |
| 20120062391 | Vehicle External Warning Sound Generation System and Method - A vehicle external warning sound generation system and method. A transducer generates warning sounds external to the vehicle in response to an input sound signal. A sensor senses sound external to the vehicle and has an output signal that represents both sensed ambient noise and sensed warning sounds. A processing system, responsive to the sensor output signal, generates the sound signal that is provided to the transducer. The processing system includes an adaptive filter which reduces the level of the warning sounds in the sensor output signal, so that mostly ambient noise remains. | 03-15-2012 |
| 20120040605 | TRANSMISSION CHANNEL SUBSTITUTION - Systems, methods, apparatuses, and computer program products for receiving an identifier of a first transmission channel for a first media station, determining whether content of the first media station is available via a second transmission channel for the first media station, and automatically initiating transmission of content of a second media station to a client computing device over a transmission channel for the second media station based on results of the determining. | 02-16-2012 |
| 20110215867 | REDUCING PULSE ERROR DISTORTION - A class D amplifier that includes circuitry to apply a non-linear correction to pulse error distortion. The amplifier includes an output voltage controlling circuit, comprising at least two switches, controlled by a modulator; an output inductor, coupling the switching circuit to an output terminal; and correction circuitry to provide to the modulator a correction signal characterized by a non-linearity. The correction circuitry includes a current sensor that senses the current from the output inductor to the output terminal. | 09-08-2011 |
| 20100091997 | Integrated Vehicle Audio System - A loudspeaker, amplifier, media source, user interface, and mechanical interface are all contained in a single unit. The unit has a first portion configured to mount in a vehicle radio mounting location and a second portion configured to extend significantly outside the vehicle radio mounting location. | 04-15-2010 |
| 20100014702 | Resonating Cone Transducer - An electroacoustical transducer includes a bobbin, a first acoustic radiator coupled to the bobbin through a first surround having a mechanical compliance, a second acoustic radiator generally rigidly coupled to the bobbin, and a basket. The first acoustic radiator is coupled to the basket through a second surround, and the second acoustic radiator is coupled to the basket through a third surround. The first surround is constructed to cause the first acoustic radiator to move out of phase with the second acoustic radiator relative to the bobbin when actuated by the bobbin at acoustic frequencies at and above a resonant frequency of the first acoustic radiator. | 01-21-2010 |
| 20100002889 | SYSTEM AND METHOD FOR DESIGNING SOUND SYSTEMS - The invention is directed to a display and method for conducting sound system design. The display is configured to simultaneously show a sound system model comprising both audio components and sound environment components, a plurality of parameters and a graphic representation of a calculated sound system performance attribute. In response to receiving input from the user and without any additional user intervention, the display re-displays a newly-calculated sound system performance attribute such as, for example, a graphic representation in the sound system model of a sound path associated with a user-selected reflected sound identifier. A processor also simulates, based on the sound system configuration, the sound performance that a user would expect to hear positioned in an identified listening position of the sound system model. | 01-07-2010 |
| 20090245561 | Acoustic Passive Radiating - Acoustic devices that include passive radiators. The passive radiator may include an acoustic driver. The acoustic device may be hand-held or pocket sized. | 10-01-2009 |
| 20090243598 | POSITION MEASUREMENT USING MAGNETIC FIELDS - A position sensing system includes a member movable along a path, the member having an elongated magnet extending along the path, the magnetic field orientation of the elongated magnet being at an angle with respect to the path. A sensor determines a position of the member along the path based on a measurement of a magnetic field generated by the elongated magnet. | 10-01-2009 |
| 20090243402 | POSITION MEASUREMENT USING MAGNETIC FIELDS - A position sensing system for positioning a linear motor that includes a stator and an armature having magnets, the armature moving relative to the stator along a path. A sensor determines a position of the armature based on measurements of a magnetic field generated by the magnets of the armature. | 10-01-2009 |
| 20090242320 | Waterproofing Loudspeaker Cones - A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, and stiffening fibers that retain stiffness when wet. In some examples, fibrillated acrylic fibers and glass fibers are used. | 10-01-2009 |
| 20090230263 | Multimedia Device Bracket - An apparatus and method for mounting various audio devices to a flat panel display employing mounting holes disposed on a rearward face of the panel of the flat panel display that are otherwise normally employed to couple a support of the flat panel display to the panel of the flat panel display, wherein a hub supporting rods that in turn support the audio devices is coupled to the rearward face of the panel with the aid of those holes, and wherein the hub and rods together convey electrical signals between at least one of the audio devices and at least one cable. | 09-17-2009 |
| 20090218867 | Plant Suspension System with Weight Compensation - An apparatus meant to be incorporated into a suspension system suspending a plant (i.e., an overall plant that includes a physical plant and possibly a load that the physical plant supports) of a vehicle acts to alter the spring constant of at least one spring of the suspension system in response to changes in the weight of the plant so that a resonant frequency of the at least one spring isolating the plant from a jolt encountered by the vehicle during travel remains substantially unchanged despite changes to the weight of the plant. | 09-03-2009 |
| 20090214066 | WAVEGUIDE ELECTROACOUSTICAL TRANSDUCING - A loudspeaker assembly, including an acoustic waveguide; an acoustic driver mounted in the waveguide so that a first surface radiates sound waves into the waveguide so that the sound waves are radiated from the waveguide; and an acoustic volume acoustically coupled to the acoustic waveguide for increasing the amplitude of the sound waves radiated from the acoustic waveguide. | 08-27-2009 |
| 20090198419 | SUSPENDED SEAT AUTOLOCKING - An apparatus meant to be incorporated into a suspension system of a suspended seat of a vehicle acts to slow movement of the seat or to stop and hold the seat against movement along at least one axis in response to an indication of the vehicle traveling at a relatively slow speed or an indication of the vehicle's speed of travel being decreased. The indication may be received from various sources including manually-operated controls, sensors and/or controller devices within the vehicle relaying their status. | 08-06-2009 |
| 20090154716 | SYSTEM AND METHOD FOR SOUND SYSTEM SIMULATION - A sound system design/simulation system provides a more realistic simulation of an existing venue by matching a measured reverberation characteristic of the existing venue and adjusting one or more acoustic parameters characterizing the model such that a predicted reverberation characteristic substantially matches the measured reverberation characteristic. | 06-18-2009 |
| 20090148744 | Fuel cell polymer electrolyte membrane - Crosslinked sulfonated triblock copolymers exhibit lower methanol permeability and good physical strength relative to the perfluorinated proton conductive membranes typically used in Direct Methanol Fuel Cells. Examples of triblock copolymers that can be used as fuel cell membranes include SEBS, SIBS, and SEPS. The chemically cross-linked and sulfonated SIBS, SEBS, and SEPS exhibit lower swelling and tolerate higher sulfonation levels than the un-cross-linked counterparts. These copolymers are easily sulfonated using known procedures and can be manufactured at a fraction of the cost of the typical perfluorinated proton conductive membranes. | 06-11-2009 |
| 20090144036 | System and Method for Sound System Simulation - A sound system design/simulation system includes background noise to provide more realistic sound renderings of the designed space and more accurate quality measures of the design space. The background noise may be provided as a library in the design system that allows the user to select a background noise profile. The user may also provide a recording of a background noise from the built space or from a similar space. The design system converts the recorded background noise to a background noise profile and adds the profile to the library of background noise profiles. The user can select a background noise profile and associate the profile with a specified space. The user can adjust the noise level of the background noise and the design system automatically updates one or more quality measures in response to the change in background noise level. | 06-04-2009 |
| 20090130884 | PORTABLE DEVICE INTERFACING - A portable device interfacing system for use in a vehicle or other environments permits a portable device to be removably connected with another system, such as an audio system. The portable device interfacing system may include features that help to prevent liquid from damaging electronics of the system, align physical connections between the interfacing system and the portable device, safely secure the portable device in position, and/or permit the system to be expanded to support different portable devices. | 05-21-2009 |
| 20090084625 | ACOUSTIC WAVEGUIDE MODE CONTROLLING - An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic device including an acoustic driver and an acoustic waveguide with two open ends. A method for making the acoustic device. | 04-02-2009 |
| 20090065499 | INDUCTION COOKWARE - An induction cooking utensil is constructed such that it cooks food within its chamber while maintaining a relatively cool outer surface (e.g., preferably an outer surface that is cool enough to pick up with one's bare hands). The cooking utensil includes an inner wall that is made at least in part of an electrically conductive material and an outer wall that is made at least in part of the electrically non-conductive material and separated from the inner wall by a gap. Holes are formed in the outer wall that permit circulation of air between the gap and the outside of the cooking utensil to provide for convective cooling. | 03-12-2009 |
| 20090065498 | INDUCTION COOKWARE - An induction cooking utensil is constructed to have an inner wall that is made at least in part of electrically conductive material and an outer wall having a bottom portion and a sidewall portion. The bottom portion is made at least in part of a non-conductive material (e.g., so as to not interfere substantially with the magnetic field produced by the induction cooktop) and the sidewall portion is made at least in part of a metallic material. | 03-12-2009 |
| 20090065497 | INDUCTION COOKWARE - An induction cooking utensil includes an inner wall and an outer wall that is separated by a vacuumed-gap. Disposed within the vacuumed-gap is a piece of getter material that absorbs at least some gas present within the gap. The getter material may thus be used to create and/or preserve the vacuum. | 03-12-2009 |
| 20090065496 | INDUCTION COOKWARE - An induction cooking utensil is constructed such that it cooks food within its chamber while maintaining a relatively cool outer surface (e.g., preferably an outer surface that is cool enough to pick up with one's bare hands). The cooking utensil includes an inner wall that is made at least in part of an electrically conductive material and an outer wall that is made at least in part of the electrically non-conductive material. A reflective layer is disposed between the inner and outer walls to reflect radiant heat away from the outer wall. | 03-12-2009 |
| 20090064808 | FLEXURE PIVOTS - A force producing element produces a force along a force axis between a plant and a support. Flexure pivots flexibly secure the force producing element to the plant and the support. The flexure pivots transmit the force between the plant and the support while isolating the force producing element from external forces. | 03-12-2009 |
| 20090052859 | Adjusting a content rendering system based on user occupancy - User occupancy is monitored within a space in which a video display of a content rendering system is viewable. The user occupancy can be monitored based on physical user attributes. At least one of audio rendering and video rendering by the content rendering system is adjusted based on the monitored user occupancy. | 02-26-2009 |
| 20090003639 | ELECTROACOUSTIC WAVEGUIDE TRANSDUCING - An acoustic waveguide system, having source of acoustic radiation and a source of opposing acoustic radiation. An acoustic waveguide has an open end and an interior. A first acoustic driver having a first radiating surface and a second radiating surface is arranged and constructed so that the first radiating surface radiates sound waves into free air and the second radiating surface radiates sound waves into the acoustic waveguide so that sound waves are radiated at the open end. A source of opposing sound waves in the acoustic waveguide opposes a predetermined spectral component of the sound waves radiated into the acoustic waveguide to reduce the acoustic radiation of the predetermined spectral component from the acoustic waveguide. | 01-01-2009 |
| 20090003616 | HEADPHONING - A noise reducing headset has one or more of the following features: (a) pair of earcups each seated in a yoke assembly mechanically coupled by a headband enclosing a flat spring formed with a slot that runs the length of the spring accommodating electrical wires electrically interconnecting electrical elements in the earcups, (b) each earcup having active noise reducing circuitry, (c) each earcup including a loudspeaker driver located off center in the earcup to allow an internal cavity inside each earcup to accommodate a loudspeaker driver, a microphone and an electronic printed circuit board and one of a battery and plug assembly, (d) one of the earcups accommodating a detachably secured plug assembly having a sensitivity switch covered by the earcup when the plug assembly is fully seated in the earcup, (e) the other earcup having a battery door that may be opened to allow insertion and removal of the battery and covered by a yoke assembly when the headset is worn by a user with the battery fully seated in the earcup. | 01-01-2009 |
