US 12,314,079 B2
Synthetic timestamp compensating for skew between system clock and sensor clock
Joseph Nouri, Fort Collins, CO (US); and Kaden Strand, Fort Collins, CO (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 18/555,667
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Apr. 23, 2021, PCT No. PCT/US2021/028870
§ 371(c)(1), (2) Date Oct. 16, 2023,
PCT Pub. No. WO2022/225531, PCT Pub. Date Oct. 27, 2022.
Prior Publication US 2024/0201733 A1, Jun. 20, 2024
Int. Cl. G06F 1/14 (2006.01)
CPC G06F 1/14 (2013.01) 15 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable data storage medium storing program code executable by a processor to perform processing comprising:
receiving a current sensor reading from a hardware sensor, the current sensor reading including a current sensor timestamp of a sensor clock indicating when the current sensor reading occurred at the hardware sensor;
storing the current sensor reading in a buffer of sensor readings along with a current system timestamp of a system clock indicating when the current sensor reading was received;
generating a current synthetic timestamp for the current sensor reading compensating for skew between the system clock and the sensor clock, based on an average instantaneous skew of the sensor readings within the buffer and an initial system timestamp indicating when a first sensor reading was received; and
applying the current synthetic timestamp to the current sensor reading.