# US 11,907,998 B2 · System and method for coupling a user computing device and a point of sale device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,907,998 B2 - Document ID: US11907998B2 - Status: Granted - Kind: B2 - Application number: 17/585,052 - Filed: 2022-01-26 - Published: 2022-05-12 - Granted: 2024-02-20 - Earliest claimed: 2013-12-05 - Assignees: Walmart Apollo, LLC - Applicants: Walmart Apollo, LLC - Inventors: Anirvan Karmakar; Sreenu Valeti; Sreejith Sreedharan; Ananda Pillareddy - Web page: https://patentgrep.com/patent/US11907998B2 ## CPC - G06Q 30/0631: {Recommending goods or services} - G06Q 20/3276: {using a pictured code, e.g. barcode or QR-code, being read by the M-device} - G06Q 30/0633: {Managing shopping lists, e.g. compiling or processing purchase lists (shipping orders G06Q10/083; order filling G06Q10/087)} - 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 In some embodiments, purchase systems and methods are provided. Some embodiments comprise one or more processors configured to receive, at a point of sale device, a request to use self-checkout through a user computing device; couple the point of sale device with the user computing device by: display by the point of sale device a coupling code configured to be scanned by the user computing device; receive the coupling code by a server system; and interpret, at the server system, the coupling code to identify the point of sale device; cause contents of an electronic shopping cart associated with a transaction to be transmitted to the identified point of sale device; receive a customer identifier associated with the transaction; and conclude, on the point of sale device, the transaction based on the coupling of the point of sale device with the user computing device. ## Claims ### Claim 1 A purchase system comprising one or more processors and one or more memory devices operably coupled to the one or more processors, the one or more memory devices storing executable and operational data effective to cause the one or more processors to: receive, at a point of sale device associated with a store, a request to use self-checkout through a user computing device; couple the point of sale device with the user computing device by: display by the point of sale device a coupling code configured to be scanned by the user computing device; receive the coupling code by a server system associated with the store; and interpret, at the server system associated with the store, the coupling code to identify the point of sale device; cause contents of an electronic shopping cart associated with a transaction to be transmitted to the identified point of sale device in response to identifying from the coupling code the point of sale device; receive a customer identifier associated with the transaction; and conclude, on the point of sale device, the transaction associated with the contents of the electronic shopping cart based on the coupling of the point of sale device with the user computing device that is associated with the customer identifier. ### Claim 2 (depends on 1) The system of claim 1, wherein the server system is configured to receive, from the user computing device, the coupling code in response to the scanning of the coupling code by the user computing device. ### Claim 3 (depends on 2) The system of claim 2, wherein the server system is configured to receive, from the user computing device in response to the scanning of the coupling code by the user computing device, the contents of the electronic shopping cart associated with the transaction, and further configured to transmits the contents of the electronic shopping cart to the point of sale device. ### Claim 4 (depends on 1) The system of claim 1, wherein the point of sale device is configured to receive a manual activation of a self checkout option of the point of sale device, generate the coupling code and display the coupling code in response to the manual activation of the self check out option. ### Claim 5 (depends on 1) The system of claim 1, wherein the point of sale device is configured to receive the customer identifier and the contents of the electronic shopping cart transmitted from the user computing device as part of a self checkout routine in response to the coupling of the point of sale device with the user computing device. ### Claim 6 (depends on 1) The system of claim 1, wherein the point of sale device is configured to generate the coupling code as a one-off code unique to the transaction. ### Claim 7 (depends on 1) The system of claim 1, wherein the server system is further configured to transmit the contents of the electronic shopping cart associated with the transaction from the server system to the identified point of sale device in response to the identification, by the server system, of the point of sale device from the coupling code. ### Claim 8 (depends on 1) The system of claim 1, wherein the server system is configured to identify a plurality of products having an expected runout date prior to a next expected transaction associated with the customer identifier. ### Claim 9 (depends on 8) The system of claim 8, wherein the executable and operational data is further effective to cause the one or more processors to: determine a prioritization of at least a portion of the plurality of products according to the runout dates thereof; and transmit to the user computing device a listing of the plurality of products according to the prioritization. ### Claim 10 (depends on 9) The system of claim 9, wherein the server system is configured to identify, for each product of the plurality of products, at least one alternative product, wherein the transmitting the listing comprises transmitting the listing including the at least one alternative product of each product of the plurality of products. ### Claim 11 A method to enable purchasing comprising: one or more processors and one or more memory devices operably coupled to the one or more processors, the one or more memory devices storing executable and operational data effective to cause the one or more processors to: receiving, at a point of sale device associated with a store, a request to use self-checkout through a user computing device; coupling the point of sale device with the user computing device by: displaying by the point of sale device a coupling code configured to be scanned by the user computing device; receiving the coupling code by a server system associated with the store; and interpreting, at the server system associated with the store, the coupling code to identify the point of sale device; causing the contents of an electronic shopping cart associated with a transaction to be transmitted to the identified point of sale device in response to identifying from the coupling code the point of sale device; receiving a customer identifier associated with the transaction; and concluding, on the point of sale device, the transaction associated with the contents of the electronic shopping cart based on the coupling of the point of sale device with the user computing device that is associated with the customer identifier. ### Claim 12 (depends on 11) The method of claim 11, further comprising: receiving, at the server system and from the user computing device, the coupling code in response to the scanning of the coupling code by the user computing device. ### Claim 13 (depends on 12) The method of claim 12, further comprising: receiving, at the server system and from the user computing device in response to the scanning of the coupling code by the user computing device, the contents of the electronic shopping cart associated with the transaction, and transmitting the contents of the electronic shopping cart to the point of sale device. ### Claim 14 (depends on 11) The method of claim 11, further comprising: receiving, at the point of sale device, a manual activation of a self checkout option of the point of sale device, generating the coupling code and displaying the coupling code in response to the manual activation of the self check out option. ### Claim 15 (depends on 11) The method of claim 11, further comprising: receiving, at the point of sale device, the customer identifier and the contents of the electronic shopping cart transmitted from the user computing device as part of a self checkout routine in response to the coupling of the point of sale device with the user computing device. ### Claim 16 (depends on 11) The method of claim 11, further comprising: generating, by the point of sale device, the coupling code as a one-off code unique to the transaction. ### Claim 17 (depends on 11) The method of claim 11, further comprising: transmitting, by the server system, the contents of the electronic shopping cart associated with the transaction to the identified point of sale device in response to the identification, by the server system, of the point of sale device from the coupling code. ### Claim 18 (depends on 11) The method of claim 11, further comprising: identifying, by the server system, a plurality of products having an expected runout date prior to a next expected transaction associated with the customer identifier. ### Claim 19 (depends on 18) The method of claim 18, further comprising: determining a prioritization of at least a portion of the plurality of products according to the runout dates thereof; identifying, for each product of the plurality of products, at least one alternative product; and transmitting to the user computing device a listing of the plurality of products according to the prioritization and the at least one alternative product of each product of the plurality of products. ### Claim 20 A system comprising one or more processors and one or more memory devices operably coupled to the one or more processors, the one or more memory devices storing executable and operational data effective to cause the one or more processors to: receive, at a first electronic device, a request to use self-checkout through a second electronic device; couple the first electronic device with the second electronic device by: displaying at the first electronic device a coupling code configured to be scanned by the second electronic device; and interpreting the coupling code to identify the first electronic device; cause contents of an electronic shopping cart associated with a transaction to be transmitted to the first electronic device in response to identifying from the coupling code the first electronic device; receive a customer identifier associated with the transaction; and conclude, on the first electronic device, the transaction associated with the contents of the electronic shopping cart based on the coupling of the first electronic device with the second electronic device that is associated with the customer identifier.