Transferring content such as a link or a photo across devices requires manual steps. For example, such steps may include uploading content to cloud storage from one device and downloading it from the other device, sending the content via email or a messaging app, or pairing the devices via Bluetooth. This disclosure describes secure, single-step, vibration-based techniques of content transfer without explicit device pairing. A transmitting device, e.g., a smartphone, has a haptic motor that is activated to vibrate the device at millimeter amplitude. The vibrations encode the transmitted content, with symbols being selected based on a codebook Upon being touched by a transmitting device, a receiving device, e.g., a laptop, picks up the vibrations on its surface and decodes the transmitted message to recover the content.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.