Presence detection device and method

    公开(公告)号:US11462086B2

    公开(公告)日:2022-10-04

    申请号:US17207073

    申请日:2021-03-19

    IPC分类号: G08B13/19 G08B13/22

    摘要: In accordance with an embodiment, a detection device includes: an infrared temperature sensor configured to provide a temperature signal associated with an heat emission of at least one individual within a monitored area; an electrostatic-charge-variation sensor configured to provide a charge-variation signal indicative of a variation of electrostatic charge associated with the at least one individual; and a processing unit, coupled to the infrared temperature sensor and to the electrostatic-charge-variation sensor, the processing unit configured to detect a presence of the at least one individual within the monitored area by receiving the temperature signal and the charge-variation signal, and jointly processing the temperature signal and charge.

    Digital signal processing circuit and corresponding method of operation

    公开(公告)号:US11461257B2

    公开(公告)日:2022-10-04

    申请号:US17339083

    申请日:2021-06-04

    摘要: An embodiment circuit comprises a plurality of processing units, a plurality of data memory banks configured to store data, and a plurality of coefficient memory banks configured to store twiddle factors for fast Fourier transform processing. The processing units are configured to fetch, at each of the FFT computation stages, input data from the data memory banks with a burst read memory transaction, fetch, at each of the FFT computation cycles, different twiddle factors in a respective set of the twiddle factors from different coefficient memory banks of the coefficient memory banks, process the input data and the set of twiddle factors to generate output data, and store, at each of the FFT computation stages, the output data into the data memory banks with a burst write memory transaction.

    PIECEWISE LINEAR FUNCTION GENERATING ELECTRONIC CIRCUIT, CORRESPONDING GENERATOR, AMPLIFIER, METHOD AND COMPUTER PROGRAM PRODUCT

    公开(公告)号:US20220308615A1

    公开(公告)日:2022-09-29

    申请号:US17702362

    申请日:2022-03-23

    IPC分类号: G05F3/26 H03F3/45

    摘要: A cell includes a first pair and a second pair of MOS transistors. Each of the first pair and second pair of MOS transistors have drain electrodes coupled to a respective common input node. Each of the first pair and second pair of MOS transistors includes a diode-connected MOS transistor and a latched MOS transistor. The latched MOS transistors of the first pair and second pair of MOS transistors have cross-coupled gate and drain electrodes. Source electrodes of the diode connected MOS transistors from the first pair and second pair of MOS transistors are coupled to a first current output common node to output a current to a first current collecting circuit. Source source electrodes of the latched MOS transistors of the first pair and second pair of MOS transistors are coupled to a second current output common node to output a current to a second current collecting circuit.

    Hardware accelerator method, system and device

    公开(公告)号:US11442700B2

    公开(公告)日:2022-09-13

    申请号:US16833340

    申请日:2020-03-27

    IPC分类号: G06F7/72 H03M7/18

    摘要: A system includes an addressable memory array, one or more processing cores, and an accelerator framework coupled to the addressable memory. The accelerator framework includes a Multiply ACcumulate (MAC) hardware accelerator cluster. The MAC hardware accelerator cluster has a binary-to-residual converter, which, in operation, converts binary inputs to a residual number system. Converting a binary input to the residual number system includes a reduction modulo 2m and a reduction modulo 2m−1, where m is a positive integer. A plurality of MAC hardware accelerators perform modulo 2m multiply-and-accumulate operations and modulo 2m−1 multiply-and-accumulate operations using the converted binary input. A residual-to-binary converter generates a binary output based on the output of the MAC hardware accelerators.

    Functional safety method, corresponding system-on-chip, device and vehicle

    公开(公告)号:US11436162B2

    公开(公告)日:2022-09-06

    申请号:US16881949

    申请日:2020-05-22

    摘要: A method is provided to access a data storage memory that stores data signals in a plurality of indexed memory locations. An access control circuit receives a memory access request signals from a processing circuit. The method includes replicating the respective memory access request signals to provide for each a respective replicated memory access request signal, accessing indexed internal memory locations to retrieve a first data signal retrieved as a function of the respective memory access request signal and a second data signal retrieved as a function of the respective replicated memory access request signal, and checking for identity the first data signal and the at least one second data signal. The access control circuit transmits to the processing circuit a data signal or an integrity error flag signal as a result of the identity check.

    MULTI-LEVEL PULSER CIRCUIT AND METHOD OF OPERATING A MULTI-LEVEL PULSER CIRCUIT

    公开(公告)号:US20220271740A1

    公开(公告)日:2022-08-25

    申请号:US17676005

    申请日:2022-02-18

    发明人: Marco VITI

    IPC分类号: H03K3/027 H03K19/20

    摘要: A multi-level pulser circuit comprises a set of first input pins for receiving respective positive voltage signals at different voltage levels, a set of second input pins for receiving respective negative voltage signals at different voltage levels, and a reference input pin configured to receive a reference voltage signal intermediate the positive voltage signals and the negative voltage signals. The circuit comprises an output pin configured to supply a pulsed output signal. The circuit further comprises control circuitry configured to selectively couple the output pin to one of the first input pins, the second input pins and the reference input pin to generate the pulsed output signal at the output pin. The control circuitry is further configured to selectively couple at least one of the second input pins and the reference input pin to the output pin during falling transitions of the pulsed output signal between two positive voltage levels, and selectively couple at least one of the first input pins and the reference input pin to the output pin during rising transitions of the pulsed output signal between two negative voltage levels.

    INTERRUPT MANAGEMENT SYSTEM AND METHOD IN A DIGITAL COMMUNICATION INTERFACE

    公开(公告)号:US20220269627A1

    公开(公告)日:2022-08-25

    申请号:US17673677

    申请日:2022-02-16

    IPC分类号: G06F13/362 G06F1/12

    摘要: In a digital communication system, a master device and a number of slave devices are coupled in communication with the master device over a shared data communication bus. A selection line for each one of the slave devices couples the master device with a respective slave device and is dedicated to selection by the master device of the respective slave device for communication over the shared data communication bus. Each of the slave devices is able to send an interrupt request to the master device over the respective selection line to be served by the master device initiating a communication over the shared data communication bus, each selection line thereby being a bidirectional communication line between the respective slave device and the master device.

    SYSTEM AND METHOD FOR SELECTING AN OPERATING MODE, SUCH AS A BOOT MODE, OF A MICRO-CONTROLLER UNIT

    公开(公告)号:US20220263509A1

    公开(公告)日:2022-08-18

    申请号:US17671844

    申请日:2022-02-15

    IPC分类号: H03K19/0175 G06F13/12

    摘要: A microcontroller includes an input pin and internal pull-up and pull-down circuits. External pull-up and pull-down circuits are also coupled to the input pin. The microcontroller is operable according to different configuration modes which include configuring the input pin in a floating state. A control logic then configures the internal pull-up and pull-down circuits according to an internal pull-up mode to acquire a first input voltage signal (at a first logic value) from the input pin, and further configure the internal pull-up and pull-down circuits according to an internal pull-down mode to acquire a second input voltage signal (at a second logic value) from the input pin. A selection of the operating mode of the MCU is then made based on the acquired first and second logic values.

    MULTI-STAGE AMPLIFIER CIRCUITS AND METHODS

    公开(公告)号:US20220263481A1

    公开(公告)日:2022-08-18

    申请号:US17665399

    申请日:2022-02-04

    IPC分类号: H03F3/45

    摘要: A circuit for startup of a multi-stage amplifier circuit includes a pair of input nodes and at least two output nodes configured to be coupled to a multi-stage amplifier circuit. A startup differential stage includes a differential pair of transistors having respective control terminals coupled to the pair of input nodes, and each transistor in the differential pair of transistors has a respective current path therethrough between a respective output node and a common source terminal. The startup differential stage is configured to sense a common mode voltage drop at a first differential stage of the multi-stage amplifier circuit. Current mirror circuitry includes a plurality of transistors coupled to the common terminal of the differential pair of transistors and coupled to two output nodes of the at least two output nodes.