Patent ID: 8967465
Filing Date: 2015-03-03
Classification: G06Q,G07F,H04B,H04L,H04M

Abstract:
1. A card reader, comprising: a read head; an audio plug for engaging a corresponding audio jack associated with a host mobile device; device electronics communicatively coupled to the read head and the audio plug; and a memory comprising a plurality of instructions for causing the device electronics to detect when the audio plug is engaged with the audio jack and to perform, upon detecting the engaging of the audio plug with the audio jack, the steps of: establishing an initial connection with the host mobile device, receiving and decoding a plurality of instances of a first carrier wave transmitted from the host mobile device using different sets of parameters for the device electronics, selecting one of the sets of parameters which supports a highest connection speed between the card reader and the host mobile device at the audio plug; and configuring the device electronics to establish a communications session with the host mobile device based on the selected one of the sets of parameters, and engaging in a payment transaction with the host mobile device using the communications session, the engaging comprising the card reader reading a card funding the payment transaction when the audio plug of the card reader is engaged with the audio jack associated with the host mobile device and during the communications session based on the selected one of the set of parameters supporting the highest connection speed.