Matches 1 - 30 out of 30
Match Document Document Title
7427819 Film-bulk acoustic wave resonator with motion plate and method  
An apparatus and method for measuring a target environmental variable (TEV) that employs a film-bulk acoustic resonator with motion plate. The film-bulk acoustic resonator (FBAR) includes an...
7425787 Acoustic galvanic isolator incorporating single insulated decoupled stacked bulk acoustic resonator with acoustically-resonant electrical insulator  
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an...
7424772 Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth  
The band-pass filter has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of...
7423503 Acoustic galvanic isolator incorporating film acoustically-coupled transformer  
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and, connected between...
7408428 Temperature-compensated film bulk acoustic resonator (FBAR) devices  
The temperature-compensated film bulk acoustic resonator (FBAR) device comprises an FBAR stack. The FBAR stack comprises an FBAR and a temperature-compensating element. The FBAR is characterized by...
7400217 Decoupled stacked bulk acoustic resonator band-pass filter with controllable pass bandwith  
The band-pass filter has an upper film bulk acoustic resonator (FBAR), an upper FBAR stacked on the lower FBAR, and, between the FBARs, an acoustic decoupler comprising a layer of acoustic...
7391286 Impedance matching and parasitic capacitor resonance of FBAR resonators and coupled filters  
A film acoustically-coupled transformer (FACT) has a first and a second stacked bulk acoustic resonator (SBAR 1 , SBAR 2 ). Each SBAR has a stacked pair of film bulk acoustic resonators (FBARs)...
7391285 Film acoustically-coupled transformer  
One embodiment of the film acoustically-coupled transformer (FACT) includes a decoupled stacked bulk acoustic resonator (DSBAR) having a lower film bulk acoustic resonator (FBAR) an upper FBAR...
7388455 Film acoustically-coupled transformer with increased common mode rejection  
The film acoustically-coupled transformer (FACT) has a first and second decoupled stacked bulk acoustic resonators (DSBARs). Each DSBAR has a lower film bulk acoustic resonator (FBAR), an upper...
7388454 Acoustic resonator performance enhancement using alternating frame structure  
Disclosed is an acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and an alternating frame region. The first electrode is...
7369013 Acoustic resonator performance enhancement using filled recessed region  
An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and a fill region. The first electrode is adjacent the substrate, and the...
7367095 Method of making an acoustically coupled transformer  
Embodiments of an acoustically-coupled transformer have a first stacked bulk acoustic resonator (SBAR) and a second SBAR. Each of the SBARs has a lower film bulk acoustic resonator (FBAR) and an...
7362198 Pass bandwidth control in decoupled stacked bulk acoustic resonator devices  
The decoupled stacked bulk acoustic resonator (DSBAR) device has a lower film bulk acoustic resonator (FBAR), an upper FBAR stacked on the lower FBAR, and an acoustic decoupler between the FBARs....
7358831 Film bulk acoustic resonator (FBAR) devices with simplified packaging  
The encapsulated film bulk acoustic resonator (FBAR) device comprises a substrate, an FBAR stack over the substrate, an element for acoustically isolating the FBAR stack from the substrate,...
7356905 Method of fabricating a high frequency ultrasound transducer  
Techniques for fabricating high frequency ultrasound transducers are provided herein. In one embodiment, the fabrication includes depositing a copperclad polyimide film, a layer of epoxy on the...
7332985 Cavity-less film bulk acoustic resonator (FBAR) devices  
The film bulk acoustic resonator (FBAR) device comprises a substrate, an acoustic Bragg reflector over the substrate, a piezoelectric element over the acoustic Bragg reflector, and a remote-side...
7276838 Piezoelectric transducer including a plurality of piezoelectric members  
A piezoelectric transducer for an ultrasonic scan is provided. The transducer includes a plurality of piezoelectric members arrayed. The plurality of piezoelectric members have different...
7275292 Method for fabricating an acoustical resonator on a substrate  
Method for fabricating an acoustical resonator on a substrate having a top surface. First, a depression in said top surface is generated. Next, the depression is filled with a sacrificial material....
6929608 Apparatus for deposition of ultrasound energy in body tissue  
An apparatus for providing ultrasonic energy for deposition in body tissue including an array of elements having at least two different sizes and at least one element being aperiodically spaced...
6464660 Balloon catheters having ultrasonically driven interface surfaces and methods for their use  
A catheter comprises a catheter body having an oscillating driver, an interface surface mechanically coupled to the driver, and an inflatable balloon disposed near the interface surface. The...
6287272 Balloon catheters having ultrasonically driven interface surfaces and methods for their use  
A catheter comprises a catheter body having an oscillating driver, an interface surface mechanically coupled to the driver, and an inflatable balloon disposed near the interface surface. The...
6228046 Catheters comprising a plurality of oscillators and methods for their use  
A catheter comprises a catheter body having a vibrational transducer disposed at or near its distal end. The vibrational transducer comprises a plurality of oscillators such as bending plate...
6221038 Apparatus and methods for vibratory intraluminal therapy employing magnetostrictive transducers  
An energy transmitting catheter comprises a catheter body (16) having a vibrating assembly at its distal end. The vibrating assembly comprises a magnetostriction driver (40) which is mechanically...
5931805 Catheters comprising bending transducers and methods for their use  
A catheter comprises a catheter body having a bending plate transducer disposed at or near its distal end. The bending plate transducer is typically a unimorph, bimorph, or other conventional...
5846218 Balloon catheters having ultrasonically driven interface surfaces and methods for their use  
A catheter comprises a catheter body having an oscillating driver, an interface surface mechanically coupled to the driver, and an inflatable balloon disposed near the interface surface. The...
EP0799469B1 DIRECTIONAL ACOUSTIC TRANSDUCER  
Abstract not available for EP0799469 Abstract of corresponding document: US5764595 PCT No. PCT/GB95/02894 Sec. 371 Date Jun. 18, 1997 Sec. 102(e) Date Jun. 18, 1997 PCT Filed Dec. 12, 1995 PCT...
5735811 Apparatus and methods for ultrasonically enhanced fluid delivery  
An ultrasonic catheter comprises a catheter body having an interface surface which extends at least partially over a circumferential portion of the catheter body. The interface surface is coupled...
5728062 Apparatus and methods for vibratory intraluminal therapy employing magnetostrictive transducers  
An energy-transmitting catheter comprises a catheter body having a vibrating assembly at its distal end. The vibrating assembly comprises a magnetostrictive driver which is mechanically coupled to...
5725494 Apparatus and methods for ultrasonically enhanced intraluminal therapy  
An ultrasonic catheter comprises a catheter body having a resonantly vibrating assembly at its distal end. The resonantly vibrating assembly comprises a tail mass, an interface member, and a spring...
5724976 Ultrasound imaging preferable to ultrasound contrast echography  
Provided is a diagnostic ultrasound system producing an image whose brightness is enhanced by a contrast medium by implementing contrast echography based on intravenous injection. A diagnostic...
Matches 1 - 30 out of 30