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Bhugra, CA
Harmeet Bhugra, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100194241 | THIN-FILM BULK ACOUSTIC RESONATORS HAVING PERFORATED BODIES THAT PROVIDE REDUCED SUSCEPTIBILITY TO PROCESS-INDUCED LATERAL DIMENSION VARIATIONS - Micro-electromechanical acoustic resonators include a resonator body suspended over a substrate. The resonator body may have a single perforation therein, which may extend substantially or completely therethrough. The resonator body may also be configured to have a center-of-mass within an interior of the perforation and/or a nodal line that overlaps the perforation. A perimeter and depth of the single perforation can be configured to reduce a susceptibility of the acoustic resonator to process-induced variations in resonant frequency relative to an otherwise equivalent resonator that omits the single perforation. In other embodiments, the resonator body may have multiple perforations therein that extend along a nodal line of the resonator. | 08-05-2010 |
| 20100194246 | Thin-Film Bulk Acoustic Resonators Having Reduced Susceptibility to Process-Induced Material Thickness Variations - Thin-film bulk acoustic resonators include a resonator body (e.g., silicon body), a bottom electrode on the resonator body and a piezoelectric layer on the bottom electrode. At least one top electrode is also provided on the piezoelectric layer. In order to inhibit process-induced variations in material layer thicknesses from significantly affecting a desired resonant frequency of the resonator, the top and bottom electrodes are fabricated to have a combined thickness that is proportional to a target thickness of the piezoelectric layer extending between the top and bottom electrodes. | 08-05-2010 |
| 20100194499 | Micro-Electromechanical Devices Having Variable Capacitors Therein that Compensate for Temperature-Induced Frequency Drift in Acoustic Resonators - Micro-electromechanical devices include a temperature-compensation capacitor and a thin-film bulk acoustic resonator having a first terminal electrically coupled to an electrode of the temperature-compensation capacitor. The temperature-compensation capacitor includes a bimorph beam having a first electrode thereon and a second electrode extending opposite the first electrode. This bimorph beam is configured to yield an increase in spacing between the first and second electrodes in response to an increase in temperature of the micro-electromechanical device. This increase in spacing between the first and second electrodes leads to a decrease in capacitance of the temperature-compensation capacitor. Advantageously, this decrease in capacitance can be used to counteract a negative temperature coefficient of frequency associated with the thin-film bulk acoustic resonator, and thereby render the resonant frequency of the micro-electromechanical device more stable in response to temperature fluctuations. | 08-05-2010 |
Kern Bhugra, Moffet Field, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100204620 | Therapy and mobility assistance system - A therapy and mobility assistance system used by a patient that includes a leg device worn on the leg of the patient that provides assistance and/or resistance to enhance the mobility of the leg of the patient, a therapy shuttle that facilitates therapeutic extension and flexion of at least one of the joints of the leg of the patient, and an appendage fastener that selectively couples the therapy shuttle and the leg device. The therapy and mobility assistance system may additionally include a guide track that constrains motion of the therapy shuttle along a path. | 08-12-2010 |
Kern Bhugra, Moffett Field, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100038983 | ACTUATOR SYSTEM WITH A MOTOR ASSEMBLY AND LATCH FOR EXTENDING AND FLEXING A JOINT - One of the embodiments of the invention is an actuator system for extending and flexing a joint. The actuator system includes a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism including a screw that accepts the rotational output of the multi-motor assembly and a nut that cooperates with the screw to convert rotational movement of the screw to linear movement of the nut, and a moving rail with a latch that functions to translate linear movement of the nut in both the extension and flexion directions into an extension and flexion of the joint. The actuator has been specifically designed for extending and flexing a joint (such as an ankle, a knee, an elbow, or a shoulder) of a human. The actuator system may, however, be used to move any suitable object through any suitable movement (linear, rotational, or otherwise). | 02-18-2010 |
| 20100198124 | SYSTEM AND METHOD FOR CONTROLLING THE JOINT MOTION OF A USER BASED ON A MEASURED PHYSIOLOGICAL PROPERTY - In one embodiment, the apparatus for controlling the motion of a joint of a user includes a physiological sensor that measures a physiological property of the user, an orthosis that controls the motion of the joint of the user, an orthosis sensor that monitors a physical property of the orthosis, and a processing unit that processes data from the physiological sensor and from the orthosis sensor. In another embodiment, the method for controlling the motion of a joint of a user includes measuring a physiological property of the user with a physiological sensor, controlling motion of the joint of the user with an orthosis, monitoring a physical property of the orthosis with an orthosis sensor, and processing data from the physiological sensor and from the orthosis sensor. | 08-05-2010 |
Kern Bhugra, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090204038 | MULTI-FIT ORTHOTIC AND MOBILITY ASSISTANCE APPARATUS - A multi-fit orthotic structure including an attachment system for coupling the orthotic structure to a wide variety of subjects without requiring a custom fit. In one embodiment, active mobility assistance is provided via an orthotic system capable of integrating a linear actuator and linkage system to deliver torque to the lower leg of a subject to facilitate flexion and/or extension motion of the subject's leg. The orthotic structure is attached to the subject using a textile suspension system which does not require the orthotic structure to interface directly in the knee region or at the lateral areas of the thigh and calf of the subject, thus providing an ideal fit for the widest possible range of subjects with the minimum number of required sizes. | 08-13-2009 |
| 20100039052 | ACTUATOR SYSTEM WITH A MULTI-MOTOR ASSEMBLY FOR EXTENDING AND FLEXING A JOINT - An actuator system for extending and flexing a joint, including a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism for converting the rotational output from the multi-motor assembly into an extension and flexion of the joint, and a controller for operating the actuator system in several operational modes. The multi-motor assembly preferably combines power from two different sources, such that the multi-motor assembly can supply larger forces at slower speeds (“Low Gear”) and smaller forces at higher speeds (“High Gear”). The actuator has been specifically designed for extending and flexing a joint (such as an ankle, a knee, an elbow, or a shoulder) of a human. The actuator system may, however, be used to move any suitable object through any suitable movement (linear, rotational, or otherwise). | 02-18-2010 |
Kern S. Bhugra, Moffett Field, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090306548 | THERAPEUTIC METHOD AND DEVICE FOR REHABILITATION - The invention relates to embodiments of methods for extending a subject-controllable range of joint motion, and for increasing subject control of joint movement within a range of motion. Embodiments include fastening a powered device around a joint so as to be able to control the joint, allowing the subject to move the joint within a range of volitional motion, and then engaging the powered device to support movement of the joint into an expanded, rehabilitative range. In some embodiments, the device supports joint movement by substantially providing the force to move the joint beyond the volitional boundary. In other embodiments, supporting movement includes the subject substantially providing the force, and the device allowing movement only in a desired direction. The invention further relates to a system for increasing the functional capability of a joint by implementing embodiments of the method. By such methods and system, rehabilitation is accomplished both by building strength, and training neural pathways. | 12-10-2009 |