Mobile device digital communication and authentication methods

Abstract

Embodiments of the present invention provide various approaches for mobile device intercommunication (e.g., digital) as well as various authentication methods. In one embodiment, the present invention provides direct line-of-sight visual digital communication between mobile devices for controlled security. In another embodiment, the present invention provides direct contact motion-based digital communication between mobile devices for controlled security. Embodiments of the present invention also provide various authentication methods. One such example relates to secure authentication code exchange with subsequent digital communications in one or more channels. In another example, human-readable information is used along machine-readable digital codes (e.g., quick response (QR) codes to verify visual codes. Still yet, embodiments of the present invention provide non-obtrusive visual codes that maintain a user's access to a mobile device screen.

Dependencies are inferred from the claim text.