US 12,278,627 B2
Synchronization of sensor output samples
Trevor Scott Bunker, Fremont, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Oct. 26, 2023, as Appl. No. 18/384,220.
Application 18/384,220 is a continuation of application No. 17/056,694, granted, now 11,838,018, previously published as PCT/US2019/062013, filed on Nov. 18, 2019.
Prior Publication US 2024/0063792 A1, Feb. 22, 2024
Int. Cl. H03K 17/94 (2006.01); G01D 21/02 (2006.01); G06F 13/38 (2006.01)
CPC H03K 17/94 (2013.01) [G01D 21/02 (2013.01); G06F 13/38 (2013.01); H03K 2217/94094 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a device having a plurality of sensor controllers, wherein each sensor controller of the plurality of sensor controllers is configured to implement a respective decimation filter that is configured to generate a single sample output from multiple input samples generated by a corresponding sensor of a plurality of sensors, the method comprising:
while monitoring for a sync signal from a master sensor controller of the plurality of sensor controllers, receiving and storing, by a non-master sensor controller of the plurality of sensor controllers, a plurality of input samples from the corresponding sensor;
upon receiving the sync signal from the master sensor controller, generating, by the non-master sensor controller, a sample output representative of the plurality of input samples received by the sensor while monitoring for the sync signal, wherein generating the sample output comprises applying the respective decimation filter of the non-master sensor controller to the plurality of input samples; and
outputting, by the non-master sensor controller, the sample output generated from the plurality of input samples received while monitoring for the sync signal from the master sensor controller.