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This page is updated frequently with new Piezo-related patent applications.




Date/App# patent app List of recent Piezo-related patents
05/26/16
20160150323 
 Piezoelectric bone conduction receiver and portable electronic device patent thumbnailnew patent Piezoelectric bone conduction receiver and portable electronic device
A piezoelectric bone conduction receiver and a portable electronic device are disclosed. The piezoelectric bone conduction receiver comprises: a piezoelectric bone conduction receiver driving unit functioning as an acoustic vibration element, a piezoelectric driving and signal processing circuit connected with the piezoelectric bone conduction receiver driving unit, and a driving signal switching module, wherein the piezoelectric bone conduction receiver driving unit comprises at least two piezoelectric bone conduction receiver driving modules which can be independently driven in operation, the at least two piezoelectric bone conduction receiver driving modules are connected to the driving signal switching module which is connected with the piezoelectric driving and signal processing circuit, and the driving signal switching module is configured to control phases of piezoelectric driving signals output by the piezoelectric driving and signal processing circuit to the piezoelectric bone conduction receiver driving modules, so that the phases of the piezoelectric driving signals received by the piezoelectric bone conduction receiver driving modules are same or opposite..
Kingtone Innovation (beijing) Technology Co., Ltd


05/26/16
20160149557 
 Elastic wave device patent thumbnailnew patent Elastic wave device
In an elastic wave device, a plurality of elastic wave elements that include idt electrodes are provided on a piezoelectric substrate, and a support layer that surrounds the elastic wave elements is provided on the piezoelectric substrate to define hollow portions in which the elastic wave elements are located. A cover member is stacked on the support layer, so that the hollow portions, in which the elastic wave elements are located, are provided, and the support layer includes a first support layer and a second support layer.
Murata Manufacturing Co., Ltd.


05/26/16
20160149556 
 Tunable filter patent thumbnailnew patent Tunable filter
A tunable filter using love waves includes an inductance for band extension connected to each of piezoelectric resonators, variable capacitances are connected to the piezoelectric resonator, the piezoelectric resonators each include a linbo3 substrate and an idt electrode, and a pass band and an attenuation region are positioned in a frequency region on a lower frequency side relative to a value obtained by a calculation in which an acoustic velocity of a low-velocity transversal wave propagating in the linbo3 substrate is divided by a wave length defined by a period of the idt electrode.. .
Murata Manufacturing Co., Ltd.


05/26/16
20160149555 
 Piezoelectric vibrating reed and piezoelectric vibrator patent thumbnailnew patent Piezoelectric vibrating reed and piezoelectric vibrator
To provide a small-sized piezoelectric vibrating reed and a piezoelectric vibrator with excellent durability. The piezoelectric vibrating reed includes a piezoelectric plate having a rectangular shape, a vibrating portion formed on a principal surface of the piezoelectric plate and a pair of mount portions for mounting the piezoelectric plate.
Sii Crystal Technology Inc.


05/26/16
20160149554 
 Elastic wave resonator, elastic wave filter device, and duplexer patent thumbnailnew patent Elastic wave resonator, elastic wave filter device, and duplexer
An elastic wave includes a piezoelectric substrate having a polarization direction denoted by an arrow px, and first and second idt electrodes arranged on the substrate in an elastic wave propagation direction with a shared reflector therebetween. A first bus bar of the first idt electrode and a first end portion bus bar of a second reflector are connected to a wiring electrode to define a first terminal.
Murata Manufacturing Co., Ltd.


05/26/16
20160149119 
 Piezoelectric ceramic composition, piezoelectric element, and  the same patent thumbnailnew patent Piezoelectric ceramic composition, piezoelectric element, and the same
A piezoelectric ceramic composition comprises a basic composition of (1-x)pb(mg1/2w1/2)0.03(ni1/3nb2/3)0.09(zryti1-y)0.88o3+xbifeo3, wherein x=0 or 0.015 y=0.47-0.53, and at least one sintering aid of lico3, caco3, pbo, cuo and fe2o3, a piezoelectric element comprising the composition, and a method for preparing the same. The piezoelectric ceramic composition allows low temperature sintering and the piezoelectric ceramics prepared therefrom improves structural property, piezoelectric property and dielectric property..
Samsung Electro-mechanics Co., Ltd.


05/26/16
20160149117 
 Ultrasonic sensor and manufacturing method thereof patent thumbnailnew patent Ultrasonic sensor and manufacturing method thereof
An ultrasonic sensor includes a substrate. A first electrode and a first piezoelectric layer are stacked on one side of the substrate.
Miics & Partners Inc.


05/26/16
20160149116 
 Ultrasonic sensor utilizing chemically strengthened glass as substrate patent thumbnailnew patent Ultrasonic sensor utilizing chemically strengthened glass as substrate
An ultrasonic sensor includes a first electrode, a first piezoelectric layer, a substrate, a second electrode, a second piezoelectric layer, and a third electrode. The first electrode and the first piezoelectric layer are stacked on a first surface of the substrate.
Miics & Partners Inc.


05/26/16
20160149115 
 Vibrator equipped with piezoelectric element patent thumbnailnew patent Vibrator equipped with piezoelectric element
A vibrator equipped with a piezoelectric element comprises: a case of which an upper or lower surface is coupled to an object to be vibrated; a vibrating part which is disposed in the case; a piezoelectric element which is coupled to the vibrating part so as to be deformed, thereby vibrating the vibrating part up and down; and a power supply part which supplies power to the piezoelectric element. The case comprises a base; and a support part which is protruded from both sides of the base and also coupled to both sides of the vibrating plate so as to elastically support the vibrating plate upward and downward, and a deformation quantity of the vibrating plate which is deformed to be bent by external impact is reduced while the support part is deformed together..
Hysonic. Co., Ltd.


05/26/16
20160149113 
 Piezoelectric actuator and lens module including the same patent thumbnailnew patent Piezoelectric actuator and lens module including the same
A piezoelectric actuator includes a piezoelectric element, a first electrode disposed on a first surface of the piezoelectric element, and a second electrode disposed on a second surface of the piezoelectric element. One or more first grooves extending in a first direction of the piezoelectric element are formed in the first electrode..
Samsung Electro-mechanics Co., Ltd.


05/26/16
20160149112 
new patent

Methods and systems for applying charge to a piezoelectric element


Methods and systems for applying charge to a piezoelectric element include and/or facilitate implementation of processes including cyclical multi-stage processes for: providing a piezoelectric element with an accumulated charge; providing one or more charge holding elements with a scavenged charge from the piezoelectric element; substantially removing or discharging a remaining charge from the piezoelectric element; and applying the scavenged charge to the piezoelectric element with an opposite polarity in relation to the polarity of the remaining charge.. .
Alfred E. Mann Foundation For Scientific Research


05/26/16
20160149078 
new patent

Nitride semiconductor light-emitting device


An object is to improve a positive hole injection efficiency into an active layer in a nitride semiconductor light-emitting device. The nitride semiconductor light-emitting device is formed by stacking nitride semiconductor crystals each of which contains al and has a polar or semipolar surface either serving as a growth face.
Meijo University


05/26/16
20160148538 
new patent

Method and system to convert portable document format file to braille


The method and system to convert portable document format (pdf) file to braille includes an electrical interactive refreshable dynamic board connected to a processor that inputs scanned text and outputs embossed braille tactile indicia readable by anyone who can read braille via the sense of touch. Piezoelectric actuators raise and lower braille pins according to the translated scanned text.
Sultan Qaboos University


05/26/16
20160148033 
new patent

Fingerprint identification unit and device


The present disclosure provides a fingerprint identification unit. The fingerprint identification unit includes a substrate, a reception layer, a first electrode layer, a transmission layer, a second electrode layer, and a third electrode layer.
Miics & Partners Inc.


05/26/16
20160147355 
new patent

Pressing sensor, touch sensor, pressing sensor-equipped display panel, and touch sensor-equipped display panel


A pressing sensor-equipped display panel that includes a pressing sensor and a display panel. The pressing sensor is arranged between a protecting member which composes an operation surface and the display panel.
Murata Manufacturing Co., Ltd.


05/26/16
20160147352 
new patent

Temperature compensating transparent force sensor having a compliant layer


An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer.
Apple Inc.


05/26/16
20160147035 
new patent

Piezoelectric actuator for camera module


In some embodiments, a camera component includes an annular lens holder component having a threaded interior surface for translating rotational motion of an optics barrel component into motion along an optical axis of the optics barrel component. In some embodiments, the threaded interior surface of the lens holder component includes one or more threads complementary to one or more threads of a threaded exterior surface of an optics barrel component.
Apple Inc.


05/26/16
20160146966 
new patent

Piezoelectric coatings for downhole sensing and monitoring


A composite piezoelectric coating (cpc) method includes entraining a powder in a first carrier gas stream; heating a second carrier gas stream to a predetermined temperature; combining the first carrier gas stream and second carrier gas stream into a combined carrier gas stream; ejecting the combined carrier gas stream at a target at a predetermined velocity, and consolidating the powder on the target by impact of the ejected combined carrier gas stream with the target.. .
Schlumberger Technology Corporation


05/26/16
20160146685 
new patent

Piezoresistive pressure sensor device


The voltages output from a low-pressure mems sensor are increased by increasing the sensitivity of the sensor. Sensitivity is increased by thinning the diaphragm of the low pressure sensor device.
Continental Automotive Systems, Inc.


05/26/16
20160146680 
new patent

Pressure sensor using piezoelectric bending resonators


A pressure sensor including an enclosure and a bending resonator housed in the enclosure. The bending resonator includes a diaphragm connected to the enclosure, a piezoelectric layer on the diaphragm, and an electrode on the piezoelectric layer.
California Institute Of Technology


05/26/16
20160144624 
new patent

Liquid discharge head and recording apparatus


A liquid discharge head and a recording apparatus are each capable of reducing a malfunction possibility that occurs on a piezoelectric actuator substrate due to contact between individual electrodes and a liquid. The liquid discharge head includes a head body including a flow channel member, a piezoelectric actuator substrate having a plurality of individual electrodes, a flexible wiring substrate, and an adhesive member adhering the flexible wiring substrate and head body, and surrounds the individual electrodes.
Kyocera Corporation


05/26/16
20160144617 
new patent

Liquid ejecting apparatus, head unit, integrated circuit device for driving capacitive load, and capacitive load driving circuit


A liquid ejecting apparatus according to the invention includes: a modulation unit that generates a modulated signal which is obtained by pulse-modulating an original signal; a transistor that generates an amplified and modulated signal which is obtained by amplifying the modulated signal; a switching circuit; a low pass filter that generates a drive signal by demodulating the amplified and modulated signal; a feedback circuit that generates a feedback signal and feeds back the feedback signal to the modulation unit; a feedback terminal that electrically connects the modulation unit to the feedback circuit; a piezoelectric element that is displaced by the drive signal; a cavity; and a nozzle, in which a distance between the feedback terminal and a closest point to the feedback terminal in the modulation unit is shorter than a distance between the feedback terminal and a closest point to the feedback terminal in the switching circuit.. .
Seiko Epson Corporation


05/26/16
20160144616 
new patent

Liquid ejecting apparatus, head unit, integrated circuit device for driving capacitive load, and capacitive load driving circuit


A liquid ejecting apparatus according to the invention includes: a modulation unit that generates a modulated signal which is obtained by pulse-modulating an original signal; a gate driver that generates an amplification control signal, based on the modulated signal; a transistor that generates an amplified and modulated signal which is obtained by amplifying the modulated signal, based on the amplification control signal; a low pass filter that generates a drive signal by demodulating the amplified and modulated signal; a piezoelectric element that is displaced by the drive signal which is applied; a first power supply unit that applies a signal to a terminal of the piezoelectric element, other than a terminal to which the drive signal is applied; a cavity; and a nozzle, wherein the gate driver and the first power supply unit are connected to a common ground terminal.. .
Seiko Epson Corporation


05/26/16
20160144492 
new patent

Torque wrench


A torque wrench includes a wrench body, a wrench head pivotally carried by the arm, a plunger, a pawl, a spring for urging the plunger, and an adjustment assembly. The adjustment assembly is operatively connected to the spring to vary an effective force of the spring on the plunger.

05/26/16
20160144403 
new patent

Vibrator equipped with piezoelectric element


A vibrator equipped with a piezoelectric element comprises: a case of which an upper or lower surface is coupled to an object to be vibrated; a vibrating part which is disposed in the case; a piezoelectric element which is coupled to the vibrating part so as to be deformed, thereby vibrating the vibrating part up and down; and a power supply part which supplies power to the piezoelectric element. The vibrating part is formed with a hooking protrusion which is protruded laterally, and the case is formed with a hooking groove which restricts an up/down and lateral moving distance of the hooking protrusion..
Hysonic. Co., Ltd.


05/26/16
20160143540 
new patent

Multifrequency electrical impedance imaging using lorentz fields


In this invention, an approach is proposed to image the electrical impedance (conductivity and permittivity) properties of biological tissues. This approach is based on electrical current induction using ultrasound together with an applied static magnetic field.

05/19/16
20160142828 

Micro phone sensor


A microphone, that increases sensitivity without a separate circuit is provided. The microphone includes an audio detection module having a vibration film that outputs capacitance signals by vibrating audio introduced from the exterior and a piezoresistive element that outputs a piezoresistive signal by a sound pressure of the audio.
Hyundai Motor Company


05/19/16
20160142827 

Electronic apparatus


An electronic apparatus comprises: an exterior exposed to the outside; a piezoelectric vibrating element being transparent and being located inside the exterior; a vibration unit being transparent and including a surface on which the piezoelectric vibrating element is located, said vibration unit being configured to vibrate by the piezoelectric vibrating element to generate a voice; and a display located on the inner side than the piezoelectric vibrating element inside the exterior and located so as to overlap the piezoelectric vibrating element in a plan view.. .
Kyocera Corporation


05/19/16
20160142822 

Electroacoustic transducer


An electroacoustic transducer is provided that combines the properties and advantages of the known concepts of the thickness mode transducer and of the bending transducer with each other. For this purpose, an electroacoustic transducer is provided, which includes a housing and an oscillating structure.
Robert Bosch Gmbh


05/19/16
20160142040 

Demultiplexing apparatus


An elastic wave filter includes a transmission circuit provided on a first main surface of a first piezoelectric substrate and a reception circuit provided on a second main surface of a second piezoelectric substrate. A mounting board on which the elastic wave filter is mounted includes a first ground electrode opposed to the transmission circuit; a first rear surface ground electrode overlapped with the transmission circuit in plan view of a rear surface; a second ground electrode opposed to the reception circuit; a second rear surface ground electrode overlapped with the reception circuit in plan view of the rear surface; a line electrode used for connection between the first ground electrode and the second ground electrode; and a first via electrode and a second via electrode passing through the mounting board.
Murata Manufacturing Co., Ltd.


05/19/16
20160142039 

Contour-mode piezoelectric micromechanical resonators


A contour mode micromechanical piezoelectric resonator. The resonator has a bottom electrode; a top electrode; and a piezoelectric layer disposed between the bottom electrode and the top electrode.
The Regents Of The University Of California


05/19/16
20160142038 

Piezoelectric thin film resonator, filter, and duplexer


A piezoelectric thin film resonator includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across at least a part of the piezoelectric film; and an insertion film inserted in the piezoelectric film, located in at least a part of an outer peripheral region within a resonance region where the lower electrode and the upper electrode face each other across the piezoelectric film, and not located in a center region of the resonance region, wherein a difference between a total film thickness of the piezoelectric film and the insertion film in a first region, in which the insertion film is inserted, within the resonance region and a film thickness of the piezoelectric film in a second region, in which the insertion film is not inserted, is less than a film thickness of the insertion film.. .
Taiyo Yuden Co., Ltd.


05/19/16
20160141980 

Piezoelectric energy harvesting and signal processing system, and use


The present invention relates to a system comprising an energy harvester device and a signal processing device coupled to the energy harvester device. The energy harvester device includes an elongate resonator beam comprising a piezoelectric material extending between first and second ends.
Microgen Systems, Inc.


05/19/16
20160141979 

Driving device


This invention prevents a load from being applied to a piezoelectric element due to a flection deformation of a flexible substrate along with a movement of a driving device and a driving efficiency from lowering. The flexible substrate of the driving device includes a first fixing portion fixed to the piezoelectric element, a second fixing portion fixed to a second holding member, and a bending portion configured to make a flection deformation along with a movement of a vibrating plate.
Canon Kabushiki Kaisha


05/19/16
20160141488 

Method for electrically contacting a piezoelectric ceramic


A method for electrically contacting a piezoelectric ceramic includes: providing the piezoelectric ceramic having electrodes for electrically contacting the piezoelectric ceramic and having a flexible, electrically conductive film; producing a composite by applying the flexible, electrically conductive film at least partially to an electrode of the piezoelectric ceramic; forming a durable, electrically conductive connection between the flexible, electrically conductive film and the electrode of the piezoelectric ceramic. Also a sound transducer, as well as a sound transducer array produced using the method for electrically contacting a piezoelectric ceramic..
Robert Bosch Gmbh


05/19/16
20160141487 

Manufacturing high-temperature piezoelectric element electrode and piezoelectric element structure


A manufacturing method for an electrode of a high-temperature piezoelectric element, comprises: coating traditional conductive slurry on surfaces of a molded piezoelectric material (1); then polarizing the piezoelectric material (1); and then removing the coating of conductive slurry (2) on the surfaces there of, and connecting the piezoelectric material to outside electrode lead wires (3) to output a signal generated by piezoelectric effect thereof. A structure of a high-temperature piezoelectric element, comprises polarized piezoelectric material (1), wherein the coating of metallic conductive slurry (2) is removed from the surfaces of the polarized piezoelectric material (1) and the surfaces of the polarized piezoelectric material (1) is connected to electrode lead wires (3) to output a signal generated by piezoelectric effect thereof.
Xiamen Niell Electronics Co., Ltd.


05/19/16
20160141486 

Piezoelectric composition and piezoelectric device


Provided is a piezoelectric composition containing a major component that is a perovskite-type oxide which is represented by the general formula abo3, which contains no pb, and which has a-sites containing bi, na, and k and b-sites containing ti. The ti is partly substituted with a transition metal element me that is at least one selected from the group consisting of mn, cr, fe, and co.
Tdk Corporation


05/19/16
20160141485 

Piezoelectric actuator and capsule endoscope including the same


A capsule endoscope includes a power supply operably coupled to a piezoelectric element. The power supply is configured to provide an alternating electric signal to the piezoelectric element.
Samsung Electro-mechanics Co., Ltd.


05/19/16
20160141333 

Magneto-elastic non-volatile multiferroic logic and memory with ultralow energy dissipation


Memory cells, non-volatile logic gates, and combinations thereof have magneto-tunneling junctions (mtjs) which are switched using potential differences across a piezoelectric layer in elastic contact with a magnetostrictive nanomagnet of an mtj. One or more pairs of electrodes are arranged about the mtj for supplying voltage across the piezoelectric layer for switching.
Virginia Commonwealth University


05/19/16
20160139290 

Fiber optic based magnetic sensing apparatus, systems, and methods


In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire a monitoring output from a first distributed feedback (dfb) fiber laser sensor at least partially bonded to a piezoelectric portion of a downhole device, to demodulate the monitoring output to determine a frequency shift in a lasing frequency of the dfb fiber laser sensor, and to correlate the frequency shift to a measure of magnetic field strength to determine a strength of a downhole magnetic field. Additional apparatus, systems, and methods are disclosed..
Halliburton Energy Services, Inc.


05/19/16
20160138990 

Electronic device, physical quantity sensor, pressure sensor, altimeter, electronic apparatus, and moving object


A physical quantity sensor includes a substrate, a piezoresistive element disposed on one surface side of the substrate, a wall portion disposed to surround the piezoresistive element, in a plan view of the substrate, on the one surface side of the substrate, and a covering layer disposed on the side opposite to the substrate with respect to the wall portion and constituting a cavity together with the wall portion. The covering layer includes a corner portion configured to include two sides adjacent to each other in the plan view, and a reinforcing portion disposed to couple the two sides..
Seiko Epson Corporation


05/19/16
20160138989 

Electronic device, physical quantity sensor, pressure sensor, altimeter, electronic apparatus, and moving object


A physical quantity sensor includes a substrate, a piezoelectric resistive element that is disposed on one surface side of the substrate, a wall portion that is disposed on the one surface side of the substrate so as to surround the piezoelectric resistive element in a plan view of the substrate, and a ceiling portion that is disposed on an opposite side to the substrate with respect to the wall portion and forms a cavity along with the wall portion, in which an inner circumferential edge of an end portion of the wall portion on an opposite side to the substrate includes curved portions which are curved in the plan view.. .
Seiko Epson Corporation


05/19/16
20160138730 

Valve stroke amplification mechanism assembly


A motion enhancing mechanism assembly suited for use with fluid control devices such as a piezoelectric modulating actuator of a proportional control valve. Range-limited axial motion of the actuator is transmitted through an amplifier disc to cause tilting of a control plate initially in sealing registration with an orifice ridge surrounding a fluid conduit aperture.
Vistadeltek, Llc


05/19/16
20160138419 

Composite piezoelectric application for ice shedding


A flow surface comprises a composite material formed of a plurality of layers of the composite, and a piezoelectric actuator located within the layers or on an outer surface of the composite material. The piezoelectric actuator is actuatable to vibrate the composite material and one of inhibit ice build-up or shed ice which has formed..
General Electric Company


05/19/16
20160137494 

Electronic device, physical quantity sensor, pressure sensor, altimeter, electronic apparatus, and moving object


An physical quantity sensor includes a substrate, a piezoelectric resistive element that is disposed on one surface side of the substrate, a wall portion that is disposed on the one surface side of the substrate so as to surround the piezoelectric resistive element in a plan view of the substrate, and a ceiling portion that is disposed on an opposite side to the substrate with respect to the wall portion and forms a cavity along with the wall portion, in which the wall portion includes an insulating layer, and wiring layers that surround the insulating layer together and have higher resistance to an etchant which can etch the insulating layer than resistance of the insulating layer.. .
Seiko Epson Corporation


05/19/16
20160136689 

Electroacoustic transducer


An electroacoustic transducer includes: a housing; an oscillating structure including at least one disk-shaped piezoelectric element having first and second surfaces; an acoustic transmitter; and electrical connecting element contacting electrodes of the piezoelectric element. The acoustic transmitter has parallel first and second surfaces, which first surface is joined to the first surface of the piezoelectric element, and which second surface is suitable for emitting and/or receiving sound waves.
Robert Bosch Gmbh


05/19/16
20160136687 

Low-profile, low-frequency, and low-impedance broad-band ultrasound transducer and methods thereof


An ultrasound transducer and a method of making this transducer, where the transducer includes at least two piezoelectric elements, oriented adjacent to each other in a stack. Each piezoelectric element includes a first surface which includes an electrode of a first polarity, a second surface which includes an electrode of a second polarity, a thickness between the first surface and the second surface, and an ultrasound transmitting surface.
Zetroz, Inc.


05/19/16
20160136664 

Piezo-pneumatic valve driving type dispensing pump and dispensing viscous liquid by using the pump


A piezo-pneumatic valve driving type dispensing pump having an improved dispensing speed and a simplified structure, and a method of dispensing a viscous liquid by using the pump. Accordingly, a viscous liquid may be easily dispensed by reciprocating a valve rod inserted into a reservoir storing the viscous liquid, by using an air pressure.
Protec Co., Ltd


05/19/16
20160136661 

Piezoelectric dispenser and calibrating stroke of the same


A piezoelectric dispenser having a uniform dispensing quality of a viscous liquid by calibrating an operation stroke of a valve rod discharging a viscous liquid (vertical operation displacement of the valve rod) by setting the operation stroke of the valve rod to an initial value during use, and a method of calibrating the operation stroke of the piezoelectric dispenser. Accordingly, a uniform dispensing accuracy of viscous liquid may be maintained, and degradation of the dispensing quality of a viscous liquid due to abrasion of components may be reduced..
Protec Co., Ltd


05/19/16
20160136367 

Respiratory therapy apparatus and methods


A vibratory pep respiratory therapy device (100) includes a valve element (11) on a rocker arm (12) that opens and closes an opening (10) during exhalation through the apparatus. An accelerometer (20) including a piezoelectric beam (22) supported at one end (23) is mounted on the outside of the housing (2) of the device to respond to vibration transmitted though the housing caused by oscillating movement of the rocker arm (12).
Smiths Medical International Limited


05/19/16
20160135714 

Exhalation measurement device, and control method


The exhalation measurement device of certain implementations comprise a chamber, a measurement component, a piezoelectric pump, a first learning controller, and a second learning controller. The chamber may temporarily hold exhalation.
Panasonic Healthcare Holdings Co., Ltd.


05/19/16
20160135698 

Ultra-low power continuous heart rate sensing in wearable devices


Systems and methods may provide for a piezoelectric film that generates an excitation signal in response to pressure variations on a surface of the piezoelectric film and an analog front end coupled to the piezoelectric film, wherein the analog front end generates a first measurement signal based on the excitation signal. Additionally, a heart rate monitor may be coupled to the analog front end, wherein the heart rate monitor generates a heart rate measurement based on the first measurement signal.
Intel Corporation




Piezo topics: Piezoelectric, Transducer, Ultrasonic, Electric Actuator, Electronic Device, Electronic Apparatus, Damping Force, Radial Flow, Semiconductor Material, Semiconductor, Sound Transducer, Ultrasound, Synchronous, Asynchronous, Liquid Adhesive

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