# US 2021/0241253 A1 · Point of sale system

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- Number: US 2021/0241253 A1
- Document ID: US20210241253A1
- Status: Published application
- Kind: A1
- Application number: 15/003,649
- Filed: 2016-01-21
- Published: 2021-08-05
- Earliest claimed: 2014-09-19
- Assignees: Square, Inc.
- Applicants: Square, Inc.
- Inventors: Yenliang Chen; Isreal Blagdan; Michael C. Lamfalusi; Kartik Lamba; Jeremy Wade
- Web page: https://patentgrep.com/patent/US20210241253A1

## CPC

- G06K 7/084: {sensing magnetic material by relative movement detecting flux changes without altering its magnetised state}
- G07G 1/0018: {Constructional details, e.g. of drawer, printing means, input means}
- G06F 1/1601: {Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64)}
- G06F 1/1607: {Arrangements to support accessories mechanically attached to the display housing (G06F1/1603, G06F1/1605 take precedence)}
- G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]}
- G06F 1/1632: {External expansion units, e.g. docking stations}
- G06F 3/0481: based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F 3/0484: for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F 3/04883: for inputting data by handwriting, e.g. gesture or text
- G06K 19/07703: {the interface being visual}
- G06Q 20/20: Point-of-sale [POS] network systems
- G06Q 20/202: {Interconnection or interaction of plural electronic cash registers [ECR] or to host computer, e.g. network details, transfer of information from host to ECR or from ECR to ECR}
- G06Q 20/204: {comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit}
- G06Q 20/34: using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q 20/341: {Active cards, i.e. cards including their own processing means, e.g. including an IC or chip}
- G06Q 20/401: {Transaction verification}
- G06Q 20/42: Confirmation, e.g. check or permission by the legal debtor of payment
- G06F 2200/1612: Flat panel monitor
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G07G: REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

A point-of-sale system is a dual-screen stand assembly that includes a merchant terminal and a consumer terminal. The merchant terminal and the consumer terminal can be mated together in a fixed position to form a single unitary stand, or can be separated from each other in a separated position with each terminal serving as its own separate stand. The merchant terminal supports a merchant computing device and is oriented in a merchant-facing direction. The consumer terminal is detachably mated to the merchant terminal and supports a consumer computing device that is oriented in a consumer-facing direction. The point-of-sale system also includes a card reader as part of the customer terminal to perform a payment. The card reader is configured to accepting swipe cards, chip cards or contactless (EMV or NFC) payments.

## Claims

### Claim 1

A point-of-sale system used in performing a point-of-sale transaction between a merchant and a consumer, the system comprising:
a merchant terminal including a first display that is oriented in a merchant-facing direction, the merchant terminal further including:
non-transitory computer readable instructions that, when interpreted by a merchant terminal processor, cause the merchant terminal processor to display a series of screens in a merchant facing graphical user interface for guiding a merchant through a point of sale transaction,
a first merchant terminal communication interface, and
a second merchant terminal communication interface;
a consumer terminal including a second display that is oriented in a consumer-facing direction, the consumer terminal further including electronics in a physically secure area and electronics in a non-secure area, the electronics in the non-secure area comprising:
non-transitory computer readable instructions that, when interpreted by a non-secure consumer terminal processor, cause the non-secure consumer terminal processor to display a series of screens in the second display for guiding a consumer through a point of sale transaction, and
a consumer terminal communication interface; and
the electronics in the physically secure area comprising:
an input controller within the secure area and coupled to the second display to receive consumer inputs received in the second display, the input controller configured to determine if the received consumer inputs require processing by a secure processor, send a first set of consumer inputs requiring further processing by the secure processor to the secure processor and to send the second set of consumer inputs that do not require further processing by the secure processor to the non-secure consumer terminal processor, and
the secure processor within the secure area configured (a) to receive the first set of consumer inputs from the input controller, (b) to encrypt the first set of consumer inputs, and (c) to send the encrypted inputs to the non-secure consumer terminal processor for transmission of the encrypted inputs using the consumer terminal communication interface,
the second merchant terminal communication interface linked to the consumer terminal communication interface by one of a wired or wireless link to receive the encrypted inputs from the consumer terminal communication interface, and the first merchant terminal communication interface configured to transmit the encrypted inputs to a financial transaction server.

### Claim 2 (depends on 1)

The point-of-sale system of claim 1 wherein the non-secure consumer terminal processor is configured to send a stripe-card-specific GUI to the consumer terminal when a magnetic stripe-type card is used in payment during the point-of-sale transaction.

### Claim 3 (depends on 1)

The point-of-sale system of claim 1 wherein the non-secure consumer terminal processor is configured to send a chip-type-card-specific GUI to the consumer terminal when a chip-type card is used in payment during the point-of-sale transaction.

### Claim 4 (depends on 1)

The point-of-sale system of claim 1 further comprising a hybrid card reader configured to receive a payment card used during the point-of-sale transaction, the payment card being a magnetic stripe-type card or an IC chip-type card, the hybrid card reader being coupled to the consumer terminal to perform a payment transaction during the point-of-sale transaction between the merchant and the consumer.

### Claim 5 (depends on 1)

The point-of-sale system of claim 1 wherein a confirmation of payment is presented to the merchant terminal merchant facing graphical user interface upon receipt of confirmation of available funds from the financial transaction server.

### Claim 6 (depends on 1)

The point-of-sale system of claim 1 wherein the physically secure area further comprises an anti-tamper battery.

### Claim 7 (depends on 1)

The point-of-sale system of claim 1 wherein the physically secure area further comprises a debug module.

### Claim 8 (depends on 1)

The point-of-sale system of claim 1 wherein the first display comprises a touch screen display.

### Claim 9 (depends on 1)

The point-of-sale system of claim 1 wherein the input controller is configured to send consumer inputs received in a secure portion of the second display to the secure processor.

### Claim 10 (depends on 1)

The point-of-sale system of claim 1 wherein the physically secure area further comprises a magnetic stripe reading interface, an EMV contact interface and an EMV contactless interface.

### Claim at position 11

-20. (canceled)

### Claim 21 (depends on 1)

The point-of-sale system of claim 1 wherein the input controller comprises:
a touch controller to receive the consumer inputs; and
a multiplexer configured to send the first set of consumer inputs to the secure processor and send the second set of consumer inputs to the non-secure consumer terminal processor.

### Claim 22 (depends on 21)

The point-of-sale system of claim 21 wherein the second display includes a secure graphical user interface portion and a non-secure graphical user interface portion.

### Claim 23 (depends on 22)

The point-of-sale system of claim 22 wherein each of the first set of consumer inputs is received by the secure graphical user interface portion and each of the second set of consumer inputs is received by the non-secure graphical user interface portion.

### Claim 24 (depends on 1)

The point-of-sale system of claim 1 wherein the physically secure area comprises a secure enclave.