US 12,333,096 B2
Coprocessor for biopotential signal pipeline, and systems and methods of use thereof
Igor Gurovski, Mountain View, CA (US); Peter Andrew Matsimanis, Menlo Park, CA (US); Tahir Turan Caliskan, Lund (SE); Pascal Bentioulis, Lund (SE); Per-Erik Bergstrom, Malmö (SE); and Johan Olof Anders Wennersten, Flyinge (SE)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Oct. 30, 2023, as Appl. No. 18/497,904.
Claims priority of provisional application 63/480,910, filed on Jan. 20, 2023.
Prior Publication US 2024/0248553 A1, Jul. 25, 2024
Int. Cl. G06F 3/01 (2006.01); G06F 3/0346 (2013.01); G06F 3/038 (2013.01)
CPC G06F 3/0383 (2013.01) [G06F 3/015 (2013.01); G06F 3/017 (2013.01); G06F 3/0346 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wearable device, comprising:
an analog-to-digital converter (ADC) configured to produce digital biopotential signals based on analog biopotential signals received from biopotential-signal-sensing channels;
a supplementary processor configured to:
sample the digital biopotential signals from the ADC;
send the digital biopotential signals to a buffer until a determination is made that a particular number of the digital biopotential signals is stored in the buffer; and
transmit, to a primary processor, an indication that the particular number of the digital biopotential signals is stored in the buffer; and
the primary processor that is configured to:
before receiving the indication, operate in a low-power mode; and
after receiving the indication, process the particular number of digital biopotential signals from the buffer to detect in-air hand gestures performed by a user of the wearable device.