US Patent 9043870 Automated sign up based on existing online identity

An automated system for signing up users invited to join a site based on their existing identity includes an invitation generator, an invite processor, a federated authentication module, a user information retrieval module, an account population and creation module, and a user interface module. The automated sign up module is responsive to an invite request. The automated sign up module sends an authorization request, receives the authorization response, verifies the response and retrieves user data. The automated sign up module uses the retrieved data to populate a sign up form and initialize an account. The automated sign up module sends new account information to a user for confirmation. Once confirmation has been received, the automated sign up module creates the new account and allows the user to access the system. The present disclosure includes a method for signing up users invited to join a site based on their existing identity.