Clock synchronization in half-duplex communication systems

    公开(公告)号:US11552775B1

    公开(公告)日:2023-01-10

    申请号:US17203211

    申请日:2021-03-16

    Inventor: Max Klaus Turner

    Abstract: Disclosed are systems, methods, and non-transitory computer-readable media for clock synchronization in half-duplex communication systems. Devices in a half-duplex system are synchronized based on time stamp values captured by each device that define a specified period of time that is of equal in length. The specified period of time spans two change-over periods to average the jitter and/or drift that occurs during each period. Each device uses these measured lengths to determine the variance in the rates at which the two internal clocks operates, which is then used to synchronizes the internal clocks of the two devices.

    Distributed processing in a vehicle networking system

    公开(公告)号:US11388241B1

    公开(公告)日:2022-07-12

    申请号:US16752088

    申请日:2020-01-24

    Abstract: Disclosed are systems, methods, and non-transitory computer-readable media for distributed processing in a vehicle networking system. A node in the vehicle networking system receives sets of processed sensor data from multiple nodes in the vehicle networking system. Each set of processed sensor data is generated using a first portion of a data processing algorithm on sensor data captured by different sets of sensors of the vehicle networking system. The node performs a second portion of the data processing algorithm based on the sets of processed sensor data received from multiple nodes, yielding a set of processed aggregated sensor data. The node may use the set of processed aggregated sensor data to provide a computer managed feature and/or transmit the set of processed aggregated sensor data to other nodes in the vehicle networking system.

    DETERMINING DIAGNOSTIC COVERAGE FOR ACHIEVING FUNCTIONAL SAFETY

    公开(公告)号:US20220035363A1

    公开(公告)日:2022-02-03

    申请号:US17451048

    申请日:2021-10-15

    Abstract: Disclosed are systems, methods, and non-transitory computer-readable media for determining diagnostic coverage for achieving functional safety. A diagnostic coverage determination system employs an optimized process for efficiently determining a diagnostic coverage level of an electronic circuit. The diagnostic coverage determination system generates an optimized netlist that includes a reduced number of nodes by applying one or more node reduction techniques. The diagnostic coverage is determined based on the optimized netlist, thereby reducing the number of nodes that are injected with faults.

    Capacitive digital to analog convertor (CDAC) with capacitive references

    公开(公告)号:US11233524B1

    公开(公告)日:2022-01-25

    申请号:US17150510

    申请日:2021-01-15

    Inventor: Klaas Bult

    Abstract: Disclosed are circuits and methods for a CDAC with capacitive references. Individual reference capacitors can be implemented to provide the reference voltages for each input capacitor in a CDAC. For example, each input capacitor may be allocated a high-reference capacitor and a low-reference capacitor to provide the reference voltage to the respective input capacitor. Each of these reference capacitors is charged along with the input capacitor when the CDAC is configured into a loading configuration, and then used to convert digital data to an analog signal when the CDAC is configured into a conversion configuration. Accordingly, the reference voltage for each input capacitor is provided by a separate power source. This contrasts with current solutions in which the reference voltages for the input capacitors are provided by either a singular high-reference voltage source or low-reference voltage source.

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