RECEIVER FOR A SATELLITE POSITIONING SYSTEM AND SATELLITE SIGNAL PROCESSING METHOD

    公开(公告)号:US20170146666A1

    公开(公告)日:2017-05-25

    申请号:US15136211

    申请日:2016-04-22

    Inventor: Stephane Dorbes

    CPC classification number: G01S19/35 G01S19/24 G01S19/32 G01S19/33 G01S19/36

    Abstract: The receiver for a satellite positioning system includes at least one receive channel with an input stage configured to receive a satellite signals having different constellation frequencies belonging to one frequency band or to different frequency bands. The receive channel further includes a frequency transposition stage connected to the input stage (EE) and including a controllable local oscillator device configured to deliver different frequency transposition signals respectively adapted to the different constellation frequencies. A processing stage of the receive channel is connected to the frequency transposition stage and includes a control circuit configured to control the local oscillator device to sequentially and cyclically deliver the different frequency transposition signals.

    Management of a low-power mode
    83.
    发明授权

    公开(公告)号:US12292777B2

    公开(公告)日:2025-05-06

    申请号:US17517382

    申请日:2021-11-02

    Abstract: In an embodiment a method for managing a low-power mode of an electronic device includes at a first request for transitioning an electronic device to a low-power mode, storing values of a first counter and a second counter of the electronic device on a first edge of a first clock and at a second request for transitioning the electronic device out of the low-power mode calculating a number of periods of a second clock between a second edge of the first clock and the first edge, the second edge being later than the first edge and updating the value of the second counter with a calculated value, wherein the first clock drives the first counter and the second clock drives the second counter, the second clock being faster than the first clock.

    Preventing a processor from re-executing instructions

    公开(公告)号:US12045175B2

    公开(公告)日:2024-07-23

    申请号:US17457569

    申请日:2021-12-03

    Inventor: Frederic Ruelle

    Abstract: A system includes a processing unit, a memory configured to store at least one first group of instructions and one second group of instructions for execution by the processing unit, the processing unit being configured to sequentially extract from the memory instructions of the first group and instructions of the second group for their execution. The system also includes a controller including a first auxiliary memory configured to store a protection criterion, a comparator configured to compare the storage address of each extracted instruction with the protection criterion, and a control circuit configured to, in response to the storage address meeting the protection criterion, trigger a protection mechanism including at least one prohibition for the processing unit to execute again at least one portion of the instructions of the first group, during the execution of the instructions of the second group.

    METHOD FOR MANAGING THE ISOLATION OF RESOURCES OF A SYSTEM-ON-CHIP, AND CORRESPONDING SYSTEM-ON-CHIP

    公开(公告)号:US20240176689A1

    公开(公告)日:2024-05-30

    申请号:US18514812

    申请日:2023-11-20

    Inventor: Loic Pallardy

    CPC classification number: G06F11/0772 G06F11/0745

    Abstract: The system-on-chip includes at least one master device, at least one slave resource, an interconnection bus including an error notification channel, and a resource isolation system including, for each resource, a protection circuit configured to block or transmit transactions addressed to the resource via the interconnection bus, according to access rights of the resource and the transaction. The protection circuit is capable of generating a notification signal on the error notification channel of the interconnection bus in case of blockage of a transaction.

Patent Agency Ranking