Robust sensor timestamp management

A system, comprising:

• processing circuitry;
• a sensor communicatively coupled to the processing circuitry to provide sensor data;
• and
• timestamp correction circuitry communicatively coupled to the processing circuitry to perform automated operations for managing timestamp information regarding the sensor data, wherein the automated operations include to:
• receive an indication of a sensor event associated with one or more data samples provided from the sensor;
• determine that an event type of the indicated event is either an interrupt event or a data flush event, wherein the interrupt event is an indication from the sensor that a required or expected quantity of senor data is available, and wherein the data flush event is a request for sensor data received prior to the sensor data being available via the interrupt event;
• assign a respective timestamp to each of the one or more data samples, wherein to assign the respective timestamp includes:
• responsive to a determination that the indicated event is an interrupt event, calculate an actual data sampling interval based at least in part on one or more time intervals between two or more previous sensor events and on a quantity of the one or more data samples, and assigning a first respective timestamp based on the calculated actual data sampling interval;
• and
• responsive to a determination that the indicated event is a data flush event, assign a second respective timestamp based on an actual data sampling interval associated with one or more previous sensor events if the actual data sampling interval has been previously stored, and otherwise assign the second respective timestamp based at least in part on an output data rate associated with the sensor;
• and
• output the one or more data samples with the one or more respective timestamps.

A non-transitory computer-readable medium having stored instructions thereon that, when executed by one or more processors, cause the one or more processors to perform one or more automated operations, the automated operations comprising:

• receiving an indication of a sensor event associated with one or more data samples provided from a sensor having an output data rate;
• determining that an event type of the indicated event is either an interrupt event or a data flush event, wherein the interrupt event is an indication from the sensor that a required or expected quantity of sensor data is available, and wherein the data flush event is a request for sensor data received prior to the sensor data being available via the interrupt event;
• assigning a respective timestamp to each of the one or more data samples, the assigning of the respective timestamp including:
• responsive to a determination that the indicated event is an interrupt event, calculating an actual data sampling interval based at least in part on one or more time intervals between two or more previous sensor events and on a quantity of the one or more data samples, and assigning a first respective timestamp based on the calculated actual data sampling interval;
• and
• responsive to a determination that the indicated event is a data flush event, assigning a second respective timestamp based on an actual data sampling interval associated with one or more previous sensor events if the actual data sampling interval has been previously stored, and otherwise assigning the second respective timestamp based at least in part on the output data rate;
• and
• providing the one or more data samples with the one or more respective timestamps.