Electronic devices that include screens can provide different QR codes corresponding to different actions or applications. However, devices that lack a screen are limited to a single QR code that is printed on the device (or device package). This disclosure describes the use of LED transmission to optically encode and send information that can be received and decoded by a camera, to enable a device without a screen information similar to a QR code. The information is encoded, e.g., using a Bernoulli fingerprint method to make the signal robust and to address noise in optical transmissions that can result from motion artifacts and ambient lighting changes. The techniques allow for easy out of the box set up or pairing for devices that do not have screens, and for transmission of other information from such devices.
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Shin, D, "Utilizing A Light Source to Encode and Transmit Information", Technical Disclosure Commons, (November 10, 2020)