Abstract: A device includes a first control element which transitions a sensor module between an active and an inactive mode. A second control element is configured to adjust currents drawn by the sensor module during the inactive mode such currents corresponding to sensor readings. A processor is coupled by a power signal to a sensor module, which operates over an active sensor, a transition, and a data transfer state. Currents drawn during the active sensor state are substantially constant. During transition, currents decrease from the substantially constant current to a minimum current. During data transfer, currents vary between the substantially constant current and the minimum current. A logical element is configured to monitor the current drawn by the sensor module and, based on variations therein, determine the operating state of the sensor module. A method for using the processor is also disclosed.

Abstract: A method of capturing biometric data is provided that includes activating a security application in a device. The security application is activated by an operator of the device and is configured to cause the device to display an outline image. Moreover, the method includes displaying the outline image in a stationary position on a display of the device, positioning desired biometric data proximate the device such that the desired biometric data appears as a biometric image on the device display, and monitoring the outline and biometric images shown on the device display. Furthermore, the method includes positioning the device and the desired biometric data to better align the outline and biometric images when the outline and biometric images do not align and capturing the desired biometric data from an individual after approximately aligning the outline image with the biometric image.

Abstract: Systems, devices, and methods for determining a position of a target using an inductive position sensor are described. The inductive position sensor may include a rotor, two or more excitation coils, and two or more receive coils. Each of the coils and the rotor may be inductively coupled. The two or more receive coils may be configured to generate a received voltage which can be approximated by a sine waveform function of twice the rotor's position. The inductive position sensor may include a resonant component. The resonance component may be connected to one of the two or more excitation coils or the rotor. An integrated circuit may be configured to determine the position of the rotor based on the two or more received voltages.

Abstract: A sensor module, in some embodiments, comprises a sensor configured to capture data and a sensor interface coupled to the sensor and configured to process the data captured by the sensor to form processed data. The sensor module may also comprise a current consumption configuration component and a transistor coupled to the current consumption configuration component and configured to control the current consumption configuration component to output the processed data.

Abstract: A method of host-directed illumination for verifying the validity of biometric data of a user is provided that includes capturing biometric data from a user with an authentication device during authentication and directing illumination of the biometric data from a host authentication system during the capturing operation. Moreover, the method includes comparing illumination characteristics of the captured biometric data against illumination characteristics expected to result from the directing operation, and determining that the user is a live user when the illumination characteristics of the captured biometric data match the illumination characteristics expected to result from the directing operation.

Abstract: A centrifugal impeller (18) having an axis of rotation (X) extending from front to rear, and comprising a body (20) extending around the axis of rotation (X), the body (20) having a front portion and a rear portion of larger section than the front portion, the impeller also have blades (24, 25) projecting from a front face (20a) of the body (20), the body (20) presenting a setback (30) in its front face (20a) between two consecutive blades (24, 25), which setback (30) is situated at a circumferential distance from said two blades (24, 25).

Abstract: The present invention relates to a process for hydrogenating a substrate including a carbon-heteroatom double bond, the process including the step of reacting the substrate with hydrogen gas in the presence of a hydrogenation catalyst, wherein the hydrogenation catalyst is a complex of formula (I): R1-10, A and Hal are as defined in the specification. The present invention also provides processes for the preparation of the complex of formula (I) and intermediates thereof.

Abstract: A method of host-directed illumination for verifying the validity of biometric data of a user is provided that includes capturing biometric data from a user with an authentication device during authentication and directing illumination of the biometric data from a host authentication system during the capturing operation. Moreover, the method includes comparing illumination characteristics of the captured biometric data against illumination characteristics expected to result from the directing operation, and determining that the user is a live user when the illumination characteristics of the captured biometric data match the illumination characteristics expected to result from the directing operation.

Abstract: A current reference circuit includes a voltage generating device, a resistor, one or more diodes, and a thermal bridge including one or more metal alloy contacts disposed on a substrate. The voltage generating device and the resistor have similar temperature coefficients. The diodes are thermally connected to the voltage generating device through the substrate. The metal alloy contacts are coupled between the diodes and the resistor. The diodes form a reverse bias junction when the compensation circuit is energized such that the thermal bridge may provide thermal conduction between the voltage generating device and the resistor.

Abstract: A method of capturing biometric data is provided that includes activating a security application in a device. The security application is activated by an operator of the device and is configured to cause the device to display an outline image. Moreover, the method includes displaying the outline image in a stationary position on a display of the device, positioning desired biometric data proximate the device such that the desired biometric data appears as a biometric image on the device display, and monitoring the outline and biometric images shown on the device display. Furthermore, the method includes positioning the device and the desired biometric data to better align the outline and biometric images when the outline and biometric images do not align and capturing the desired biometric data from an individual after approximately aligning the outline image with the biometric image.

Abstract: A method for detecting user head motion during an authentication transaction is provided that includes generating, by a processor, a motion type feature vector and a user head motion type prediction based on data generated for a sequence of frames. The frames are included in biometric data captured from a user. Moreover, the method includes generating a liveness rating feature vector based on the generated frame data, merging the motion type and liveness rating vectors, and generating a spoof prediction from the merged vector. When the generated spoof prediction indicates biometric data in the frames was spoofed, the method includes changing the user head motion type prediction to no motion. The method also includes storing the user head motion type prediction in a buffer and determining a final user head motion type detected for the frames.

Abstract: A method of host-directed illumination for verifying the validity of biometric data of a user is provided that includes capturing biometric data from a user with an authentication device during authentication and directing illumination of the biometric data from a host authentication system during the capturing operation. Moreover, the method includes comparing illumination characteristics of the captured biometric data against illumination characteristics expected to result from the directing operation, and determining that the user is a live user when the illumination characteristics of the captured biometric data match the illumination characteristics expected to result from the directing operation.

Abstract: A method of capturing biometric data is provided that includes activating a security application in a device. The security application is activated by an operator of the device and is configured to cause the device to display an outline image. Moreover, the method includes displaying the outline image in a stationary position on a display of the device, positioning desired biometric data proximate the device such that the desired biometric data appears as a biometric image on the device display, and monitoring the outline and biometric images shown on the device display. Furthermore, the method includes positioning the device and the desired biometric data to better align the outline and biometric images when the outline and biometric images do not align and capturing the desired biometric data from an individual after approximately aligning the outline image with the biometric image.

Abstract: This system determines the operation of data transfer means by direct memory access by a task scheduler in charge of process context changes, the system including deterministic means for establishing and suspending the data transfers of memory data initiated before, but not terminated during, the contextual changes, and for resuming the data transfers during the return to the corresponding initial context, in order to give each process full and exclusive access to the means of transfer.

Abstract: A method for detecting user head motion during an authentication transaction is provided that includes generating, by a processor, a motion type feature vector and a user head motion type prediction based on data generated for a sequence of frames. The frames are included in biometric data captured from a user. Moreover, the method includes generating a liveness rating feature vector based on the generated frame data, merging the motion type and liveness rating vectors, and generating a spoof prediction from the merged vector. When the generated spoof prediction indicates biometric data in the frames was spoofed, the method includes changing the user head motion type prediction to no motion. The method also includes storing the user head motion type prediction in a buffer and determining a final user head motion type detected for the frames.

Abstract: A sensor module, in some embodiments, comprises a sensor configured to capture data and a sensor interface coupled to the sensor and configured to process the data captured by the sensor to form processed data. The sensor module may also comprise a current consumption configuration component and a transistor coupled to the current consumption configuration component and configured to control the current consumption configuration component to output the processed data.

Abstract: A dynamic uninterruptible power supply system including a synchronous machine with two shaft ends inserted between two kinetic energy accumulators for doubling the unit capacity is provided.

Abstract: A current reference circuit includes a voltage generating device, a resistor, one or more diodes, and a thermal bridge including one or more metal alloy contacts disposed on a substrate. The voltage generating device and the resistor have similar temperature coefficients. The diodes are thermally connected to the voltage generating device through the substrate. The metal alloy contacts are coupled between the diodes and the resistor. The diodes form a reverse bias junction when the compensation circuit is energized such that the thermal bridge may provide thermal conduction between the voltage generating device and the resistor.

Abstract: A method of capturing biometric data is provided that includes activating a security application in a device. The security application is activated by an operator of the device and is configured to cause the device to display an outline image. Moreover, the method includes displaying the outline image in a stationary position on a display of the device, positioning desired biometric data proximate the device such that the desired biometric data appears as a biometric image on the device display, and monitoring the outline and biometric images shown on the device display. Furthermore, the method includes positioning the device and the desired biometric data to better align the outline and biometric images when the outline and biometric images do not align and capturing the desired biometric data from an individual after approximately aligning the outline image with the biometric image.