US Patent 12020228 Apparatus and method for payment processing

A computer server and method for payment processing are described herein. A server has a module for forming an encrypted connection with a payment terminal, and pairs a merchant sales terminal with the payment terminal. Communications between the payment terminal and merchant sales terminal are carried out through the server, which converts messages into the appropriate format for each terminal. After the transaction is carried out, the server returns receipt information to the sales terminal for receipt generation.