Patent ID: 11935575
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A head-mounted display (“HMD”) device comprising:
an image sensor; and
an electronic display, the electronic display configured to display images based on data received from a console device; and
wherein the image sensor is configured to transmit captured images to the console device, and wherein the image sensor comprises:
a first sensor layer, of a plurality of stacked sensor layers, including an array of pixels; and
one or more semiconductor layers of the plurality of stacked sensor layers located beneath the first sensor layer, the one or more semiconductor layers configured to process pixel data output by the array of pixels, the one or more semiconductor layers comprising a first memory to store most significant bits (“MSBs”) of data involved in the processing of the pixel data; and a second memory to store least significant bits (“LSBs”) of the data,
wherein the first memory has a lower bit error rate (“BER”) than the second memory,
wherein the one or more semiconductor layers further comprise a machine learning (ML) model accelerator configured to process the pixel data, and wherein the data includes at least one of the pixel data, weights, and intermediate output data of the ML model, and
wherein the bit error rate of the first memory and the bit error rate of the second memory are based on a target classification error rate of processing of the pixel data by the ML model.