Abstract: The application describes MEMS transducers having a patterned membrane electrode which incorporates a plurality of openings or voids. A conductive element is provided on the surface of the underlying membrane within the opening.

Abstract: The present application relates to MEMS transducer comprising a membrane electrode and a backplate electrode. The membrane electrode comprises primary and secondary openings.

Abstract: An apparatus, comprising a biometric fingerprint identification sensor, the biometric fingerprint identification sensor configured to receive an input from a user, the input corresponding to a-predetermined factor, the predetermined factor comprising a force applied by a finger of the user to the biometric fingerprint identification sensor. A connected computer processor determines a qualitative or quantitative threshold based on the predetermined factor, receive the input from the fingerprint identification sensor, calculate a value of a variable associated with the predetermined factor and the input, and trigger a feedback output when the value approaches the threshold within a margin. A connected haptic feedback is device configured to provide haptic feedback to the body of the user when the haptic feedback device receives the triggered feedback output from the computer processor indicating the value is within the margin of the predetermined threshold.

Abstract: A MEMS capacitive transducer with increased robustness and resilience to acoustic shock. The transducer structure includes a flexible membrane supported between a first volume and a second volume, and at least one variable vent structure in communication with at least one of the first and second volumes. The variable vent structure includes at least one moveable portion which is moveable in response to a pressure differential across the moveable portion so as to vary the size of a flow path through the vent structure. The variable vent may be formed through the membrane and the moveable portion may be a part of the membrane, defined by one or more channels, that is deflectable away from the surface of the membrane. The variable vent is preferably closed in the normal range of pressure differentials but opens at high pressure differentials to provide more rapid equalisation of the air volumes above and below the membrane.

Abstract: The present application relates to MEMS transducer comprising a membrane electrode and a backplate electrode. The membrane electrode comprises primary and secondary openings.

Abstract: Systems and methods are provided for authenticating a user of a computing device. The system comprises one or more memory devices storing instructions, and one or more processors configured to execute the instructions to provide, to a computing device associated with a user, an indication of a prescribed authentication parameter. The system also receives image data including an image of the user of the computing device captured using an image sensor of the computing device. The system determines an identity of the user based on an analysis of the received image data, determines whether the received image data includes a feature corresponding to the prescribed authentication parameter, and authenticates the user based at least in part on whether the received image data includes the feature corresponding to the prescribed authentication parameter.

Abstract: A MEMS transducer may comprise a membrane supported relative to a substrate, the membrane comprising a first region and a second region, wherein the first region comprises a central region and plurality of arms which extend laterally from the central region and wherein the second region is separated from the first region by a channel which extends through the membrane.

Abstract: A MEMS capacitive transducer with increased robustness and resilience to acoustic shock. The transducer structure includes a flexible membrane supported between a first volume and a second volume, and at least one variable vent structure in communication with at least one of the first and second volumes. The variable vent structure includes at least one moveable portion which is moveable in response to a pressure differential across the moveable portion so as to vary the size of a flow path through the vent structure. The variable vent may be formed through the membrane and the moveable portion may be a part of the membrane, defined by one or more channels, that is deflectable away from the surface of the membrane. The variable vent is preferably closed in the normal range of pressure differentials but opens at high pressure differentials to provide more rapid equalisation of the air volumes above and below the membrane.