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3280results about "Transducer details" patented technology
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Headband variable stiffness
A method and apparatus are provided for allowing a user to change the stiffness of their headband, thus changing the clamping force of the headset. The section properties of the headband equivalent spring, which is a cantilevered beam, are changed by engaging a secondary spring, which is also a shorter cantilevered beam. The change is achieved by manipulating the effective length of the secondary spring, which can be accomplished with a set of clamps. Thus, the stiffness of the headband can be modified to the desire of the user.
Owner:VOCOLLECT
Sender communications for wireless power transfer
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Receiver controller for wireless power transfer
ActiveUS20120299542A1Electromagnetic wave systemTransducer detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Distributed wireless speaker system with automatic configuration determination when new speakers are added
ActiveUS9288597B2Facilitate easier setupIncrease experienceTransducer detailsPublic address systemsAuto-configurationUser input
Owner:SONY CORP
Ultrasonic spindle system
InactiveUS20100158307A1Stable supplyHigh speed rotationTurning machine accessoriesTransducer detailsEngineeringElectric signal
It is possible to stably supply an electric signal to an ultrasonic generation element without causing friction or damage on parts or without requiring periodical parts exchange. A reception coil (11) connected to a vibrator (6) is wound on the outer circumference of a housing (1) constituting a shaft (30) of a machining spindle (101). The reception coil (11) is surrounded coaxially by a transmission coil (12) at an appropriate interval. A predetermined electric signal outputted from an ultrasonic drive device (21) for driving the vibrator (6) is applied to the transmission coil (12). The predetermined electric signal may be applied to the vibrator (6) via the reception coil (11) by electromagnetic induction between the transmission coil (12) and the reception coil (11).
Owner:KUBOTA OSAMU +2
Sender transducer for wireless power transfer
ActiveUS20120300592A1Transducer detailsAngle modulation detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Receiver transducer for wireless power transfer
InactiveUS20120300593A1Transducer detailsAngle modulation detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Receiver communications for wireless power transfer
InactiveUS20120300588A1Transducer detailsAngle modulation detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Sender controller for wireless power transfer
InactiveUS20120299541A1Electromagnetic wave systemTransducer detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Electroactive polymer generators
InactiveUS7034432B1Speed up the conversion processImprove responseTransducer detailsPiezoelectric/electrostriction/magnetostriction machinesPre strainActive polymer
The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical energy. The present invention also relates to devices including an electroactive polymer to convert between electrical and mechanical energy. The present invention further relates to compliant electrodes that conform to the shape of a polymer included in a transducer. The present invention provides methods for fabricating electromechanical devices including one or more electroactive polymers.
Owner:SRI INTERNATIONAL
Receiver communications for wireless power transfer
InactiveUS9001622B2Transducer detailsAngle modulation detailsElectric power transmissionAudio power amplifier
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
Owner:UBEAM
Light-guiding devices and monitoring devices incorporating same
A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector. The cover includes light transmissive material that is in optical communication with the optical emitter and the optical detector and serves as a light guide to deliver light from the optical emitter into the ear canal of the subject wearing the device at one or more predetermined locations and to collect light external to the earbud housing and deliver the collected light to the optical detector.
Owner:VALENCELL INC
Light-Guiding Devices and Monitoring Devices Incorporating Same
ActiveUS20100217102A1Easy alignmentPhysical therapies and activitiesTransducer detailsLight guideEngineering
A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector. The cover includes light transmissive material that is in optical communication with the optical emitter and the optical detector and serves as a light guide to deliver light from the optical emitter into the ear canal of the subject wearing the device at one or more predetermined locations and to collect light external to the earbud housing and deliver the collected light to the optical detector.
Owner:VALENCELL INC
Electroactive polymer devices for moving fluid
InactiveUS7064472B2Improve mechanical responseImprove responseTransducer detailsFlexible member pumpsHearing rangeThermal force
The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, such as a piston in a hydraulic actuation device. The devices may include one or more electroactive polymer transducers with an electroactive polymer that deflects in response to an application of an electric field. The electroactive polymer may be in contact with a fluid where the deflection of the electroactive polymer may be used to perform thermodynamic work on the fluid. The devices may be designed to efficiently operate at a plurality of operating conditions, such as operating conditions that produce an acoustic signal above or below the human hearing range. The devices may be used in thermal control systems, such as refrigeration system, cooling systems and heating systems.
Owner:SRI INTERNATIONAL
Energy harvesting device including MEMS composite transducer
An energy harvesting device includes a MEMS composite transducer. The MEMS composite transducer includes a substrate. Portions of the substrate define an outer boundary of a cavity. A MEMS transducing member includes a beam having a first end and a second end. The first end is anchored to the substrate and the second end cantilevers over the cavity. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member. A second portion of the compliant membrane is anchored to the substrate. The compliant member is configured to be set into oscillation by excitations produced externally relative to the energy harvesting device.
Owner:EASTMAN KODAK CO
Hands free device with directional interface
ActiveUS20150346845A1Digital data information retrievalTransducer detailsHands freeHuman–computer interaction
Embodiments provide a non-transitory computer-readable medium containing computer program code that, when executed, performs an operation. The operation includes detecting a user action requesting an interaction with a first device and originating from a source. Additionally, embodiments determine a direction in which the source is located, relative to a current position of the first device. A response to the user action is also determined, based on a current state of the first device. Embodiments further include outputting the determined response substantially in the determined direction in which the source is located.
Owner:HARMAN INT IND INC
Stress inducing spacers
InactiveUS6825529B2Different stressImprove performanceTransducer detailsSolid-state devicesStress inducedDevice form
Owner:AURIGA INNOVATIONS INC
Energy efficient electroactive polymers and electroactive polymer devices
InactiveUS6911764B2Increase deflectionImprove energy conversion efficiencyTransducer detailsPiezoelectric/electrostriction/magnetostriction machinesActive polymerMechanical energy
Owner:SRI INTERNATIONAL
Ultrasound transducer array
InactiveUS6974417B2Ultrasonic/sonic/infrasonic diagnosticsMaterial analysis using sonic/ultrasonic/infrasonic wavesPhased arrayOperating frequency
This invention relates to an ultrasonic transducer array for non-destructive imaging and inspection of materials, suitable for applications such as bio-medical imaging. According to the invention, the transducer has at least one electrode comprising an array of electrode elements, wherein the elements are not separated by a grooves or kerfs. The grooveless transducer design simplifies transducer construction and permits very high operating frequencies, and hence very high resolution. In one embodiment suitable for producing real-time high resolution 3-dimension images, the invention provides a hybrid transducer comprising two opposed electrodes, one electrode being a grooveless linear array and the second electrode being a grooved linear phased array.
Owner:QUEENS UNIV OF KINGSTON
Entertainment system with bandless tuning
InactiveUS7885622B2Efficient use ofImprove user experienceDocking-station type assembliesSignal processingTelecommunications linkTransceiver
Owner:CHESTNUT HILL SOUND
Light-guiding devices and monitoring devices incorporating same
ActiveUS8700111B2Easy alignmentPhysical therapies and activitiesTransducer detailsLight guideEngineering
A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector. The cover includes light transmissive material that is in optical communication with the optical emitter and the optical detector and serves as a light guide to deliver light from the optical emitter into the ear canal of the subject wearing the device at one or more predetermined locations and to collect light external to the earbud housing and deliver the collected light to the optical detector.
Owner:VALENCELL INC
Method and apparatus for seismic data acquisition
InactiveUS20050052951A1Avoid entrapmentMinimize the possibilityTransducer detailsSeismic signal receiversOcean bottomRubidium
A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-rigid, non-conducting cable used to control pod deployment. Pods are deployed and retrieved from a boat deck configured to have a storage system and a handling system to attach pods to cable on-the-fly. The storage system is a juke box configuration of slots wherein individual pods are randomly stored in the slots to permit data extraction, charging, testing and synchronizing without opening the pods. A pod may include an inertial navigation system to determine ocean floor location and a rubidium clock for timing. The system includes mathematical gimballing. The cable may include shear couplings designed to automatically shear apart if a certain level of cable tension is reached.
Owner:MAGSEIS FF LLC
Methods and Apparatus for Measuring Physiological Conditions
InactiveUS20100217100A1Convenient and unobtrusiveElectroencephalographyDiagnostics using lightAudiologyCardiopulmonary function
A monitoring apparatus includes a housing configured to be attached to an ear of a subject, and a plurality of electrodes supported by the housing. The electrodes are configured to at least partially contact a portion of the body of the subject when the housing is attached to the ear of the subject, and are configured to detect and / or measure at least one neurological and / or cardiopulmonary function of the subject. The housing may include one or more physiological sensors configured to detect and / or measure physiological information from the subject and / or one or more environmental sensors configured to detect and / or measure environmental conditions in a vicinity of the subject.
Owner:VALENCELL INC
Conformable ear tip with spout
Apparatuses and methods for delivering sound to ear canal are provided. The apparatus generally includes a compressible and resilient toroidal section having an inner side and an outer side. An aperture extends from the outer side to the inner side and the outer side has a well disposed within an inner side surface about the aperture. The apparatus further includes a compressible and resilient spout integrated with the toroidal section and extending away from the inner side. The spout includes a channel disposed within an inner spout surface and the channel is coupled to the well.
Owner:PLANTRONICS
Electroactive polymers transducers and actuators
InactiveUS6940211B2Speed up the conversion processImprove mechanical responseTransducer detailsPiezoelectric/electrostriction/magnetostriction machinesPre strainActive polymer
The present invention relates to electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. The pre-strain improves the mechanical response of an electroactive polymer. The present invention also relates to actuators including an electroactive polymer and mechanical coupling to convert deflection of the polymer into mechanical work. The present invention further relates to compliant electrodes that conform to the shape of a polymer. The present invention provides methods for fabricating electromechanical devices including one or more electroactive polymers.
Owner:SRI INTERNATIONAL
Speaker device and mobile phone
InactiveUS20070147651A1High sensitivityImprove efficiencyTransducer detailsSound producing devicesLoudspeakerVoice coil
A speaker device includes: a magnetic circuit which includes two magnetic gaps; a diaphragm which is arranged at a position passing through at least the two magnetic gaps and includes a recessed part extending in a direction substantially orthogonal with respect to an extending direction of a magnetic flux in the magnetic gaps; and a voice coil, formed into an annular shape, which includes a first parallel part extending in one direction and a second parallel part extending in a direction in parallel with the first parallel part and opposite to the first parallel part with a constant space. Particularly, the first parallel part and the second parallel part are arranged in a direction in parallel with an extending direction of the recessed part, respectively, and the first parallel part and the second parallel part are arranged in the recessed part to be positioned in the two magnetic gaps, respectively.
Owner:PIONEER CORP +1
Audio lamp
In one embodiment, this invention discloses a device that is a lamp on the one hand, and also a speaker on the other, comprising a light-emitting element, a surface that acts as a sound-emitting element, and a base socket that can fit to an ordinary household lamp socket. The surface can be translucent and act as a lamp cover at the same time. There is also an electronic assembly in the lamp that controls both the light-emitting and sound-emitting elements, as well as communicates with an external host or other devices. In another embodiment, the lamp cover can also couple with an acoustic-wave transducer unit so that the audio lamp device becomes a light and a microphone. Various sensors can also be equipped within the audio lamp, and the results can be sent to the external host through the electronic assembly.
Owner:MASSARA ANDREW +1
High sensitivity noise immune stethoscope
ActiveUS20070165872A1Efficient couplingHigh elastic modulusTransducer detailsStethoscopeEngineeringActive systems
A physiological sensing stethoscope suitable for use in high-noise environments is disclosed. The stethoscope is designed to be substantially matched to the mechanical impedance of monitored physiological activity and substantially mismatched to the mechanical impedance of air-coupled acoustic activity. One embodiment of the stethoscope utilizes a passive acoustic system. Another embodiment utilizes an active Doppler system. The passive and active systems can be combined in one stethoscope enabling switching from a passive mode to an active mode suitable for use in very high-noise environments. The stethoscope is suitable for use in environments having an ambient background noise of 100 dBA and higher. The passive includes a head having a housing, a flexural disc mounted with the housing, and an electromechanical stack positioned between the housing and the flexural disc in contact with the skin of a patient. The active system detects Doppler shifts using a high-frequency transmitter and receiver.
Owner:ACTIVE SIGNAL TECH
Form-Fitted Monitoring Apparatus for Health and Environmental Monitoring
A monitoring apparatus includes a housing that is configured to be attached to a body of a subject. The housing includes a sensor region that is configured to contact a selected area of the body of the subject when the housing is attached to the body of the subject. The sensor region is contoured to matingly engage the selected body area. The apparatus includes at least one physiological sensor that is associated with the sensor region and that detects and / or measures physiological information from the subject and / or at least one environmental sensor associated with the sensor region that is configured to detect and / or measure environmental information. The sensor region contour stabilizes the physiological and / or environmental sensor(s) relative to the selected body area such that subject motion does not impact detection and / or measurement efforts of the sensor(s).
Owner:VALENCELL INC
Form-fitted monitoring apparatus for health and environmental monitoring
Owner:VALENCELL INC
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