Abstract: Shopping cart lists at a retail store are provided relative to limits. A customer can use their own smart phone, for example, or a proprietary store device to scan products as they are added to a shopping cart. Prior to adding products, the phone or device can be personalized with the customer's payment information. The device can determine a transaction limit based on the customer's payment information. As products are added to the shopping cart, the customer can be alerted regarding the reaching of the transaction limit. The device can also give suggestions to the customers of items to be removed from the shopping cart to stay within the transaction limit.

Abstract: Systems and methods disclosed herein relate to fast checkout using a smart cart. A forward facing radio frequency identification (“RFID”) reader component can read a first set of RFID tags and generate a first set of items based on RFID information read from the first set of RFID tags. A rear facing RFID reader component can read a second set of RFID tags and generate a second set of items based on RFID information read from the second set of RFID tags. A shopping cart list component can and remove items to a set of shopping cart items based on updates received from the forward facing RFID reader component and the rear facing RFID reader component regarding the first set of items and the second sets of items.

Abstract: Systems and methods disclosed herein relate to fast-track payments at a retail store. Identification data can be received related to a user of a personal shopping device wherein the identifier includes payment preferences associated with the user. The personal shopping device can be personalized with the identification data. A shopping cart list can be dynamically received from the personal shopping device. A checkout request can be received from the personal shopping device. The checkout request can be processed based on the shopping cart list, using, at least in part, the payment preferences associated with the user. An area around the user at a security checkpoint can be scanned. An exit list can be identified based on the scanning. The exit list can be compared to the shopping cart list. Upon the list and the shopping cart list not matching, remedial action can be taken.

Abstract: Disclosed are systems and techniques that communicate data from a smart card to a smart card reader component and a computer device for an online application, transaction, or service. A smart card reader component converts data from the smart card to audio data and communicates the audio data to the computer. The smart card reader component is a portable component that communicates account data, personal identification data, digital signature data and authentication data to an online application via a network.

Abstract: User authentication systems and supporting methods and devices are described. For instance, the disclosed subject matter describes image-facilitated generation of user authentication credentials, user authentication, etc. for a user and related functionality, where a selection of images can correspond to a grammatical structure comprising disparate parts of speech according to various non-limiting aspects. The disclosed details enable various refinements and modifications according to system design and tradeoff considerations.