# US 12,008,545 B2 · Computer-implemented method for performing a restricted transaction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,008,545 B2 - Document ID: US12008545B2 - Status: Granted - Kind: B2 - Application number: 18/332,348 - Filed: 2023-06-09 - Published: 2023-10-05 - Granted: 2024-06-11 - Earliest claimed: 2020-01-08 - Assignees: Visa International Service Association - Applicants: Visa International Service Association - Inventors: Ved Prakash Sajjan K Agarwal - Web page: https://patentgrep.com/patent/US12008545B2 ## CPC - G06Q 20/341: {Active cards, i.e. cards including their own processing means, e.g. including an IC or chip} - G06Q 20/204: {comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit} - G06Q 20/3825: {Use of electronic signatures} - G07F 7/0813: {Specific details related to card security} - G07F 7/122: {Online card verification} - 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 - G07F: COIN-FREED OR LIKE APPARATUS (coin sorting G07D3/00; coin testing G07D5/00; {handling coins or paper currencies apart from payment activated apparatus G07D; payment architectures, schemes or protocols G06Q20/00}) ## Abstract The present disclosure is related to a field of payment transactions using a card that discloses a computer-implemented method and a system for restricting a transaction while using a payment card. A card processing server may receive card details, a transaction amount, a flag, and signature data of the payment card from a remote terminal upon initiating a transaction using the payment card. Further, the card processing server validates the payment card based on the card details and the signature data of the payment card and thereafter determines a value associated with the flag upon successful validation. The value associated with the flag indicates one of two conditions, e.g., a true condition and a false condition. Based on the condition indicated by the flag, the card processing server performs one of a first action and a second action related to either processing or declining the transaction. ## Claims ### Claim 1 A payment card comprising: a first portion with a primary chip; a second portion with a secondary chip; a mechanism capable of detachably connecting the first portion and the second portion; and a physical communication link configured between the primary chip and the secondary chip to communicatively connect the first portion and the second portion of the payment card, wherein the physical communication link facilitates a determination of whether the first portion is physically intact with the second portion, wherein the second portion includes card details of the payment card, and wherein the first portion one of: (i) includes only a partial portion of the card details and (ii) does not include the card details, wherein the second portion is pre-configured with a Merchant Category Code (MCC) that restricts a transaction to products related to the MCC when the second portion is determined to be detached from the first portion during the transaction. ### Claim 2 (depends on 1) The payment card of claim 1, wherein the card details include at least one of: a card number, a Card Verification Value (CVV), an expiry date, a name, or any combination thereof. ### Claim 3 (depends on 2) The payment card of claim 2, wherein the card details include the card number, wherein the first portion includes a partial portion of the card number, and wherein the second portion includes the remaining portion of the card number. ### Claim 4 (depends on 2) The payment card of claim 2, wherein the card details include the CVV, wherein the second portion includes the CVV, and wherein the first portion does not include the CVV. ### Claim 5 (depends on 2) The payment card of claim 2, wherein the card details include each of: the card number, the CVV, the expiry date, and the name. ### Claim 6 (depends on 1) The payment card of claim 1, wherein the primary chip is associated with a first signature and the secondary chip is associated with a second signature. ### Claim 7 (depends on 6) The payment card of claim 6, wherein the first signature and the second signature facilitate authentication of the first portion and the second portion of the payment card when the first portion and the second portion are physically intact. ### Claim 8 (depends on 1) The payment card of claim 1, wherein the physical communication link is further configured to transmit signature data from the primary chip and the secondary chip to a remote terminal when the payment card is interfaced with the remote terminal, and wherein the signature data comprises at least one of a first signature and a second signature. ### Claim 9 (depends on 1) The payment card of claim 1, wherein the mechanism is a magnetic link. ### Claim 10 A system comprising: a payment card including a first portion with a primary chip, a second portion with a secondary chip, and a mechanism capable of detachably connecting the first portion and the second portion, wherein the second portion includes card details of the payment card, and wherein the first portion one of: (i) includes only a partial portion of the card details and (ii) does not include the card details; a remote terminal; and a card processing server, wherein the remote terminal is configured to: retrieve card details from the payment card communicatively interfaced with the remote terminal; receive signature data from at least one of a primary chip of the payment card and a secondary chip of the payment card; set a value of a flag to indicate a true condition, when the signature data is received from the primary chip and the secondary chip, or a value of the flag to indicate a false condition, when the signature data is received from one of the primary chip or the secondary chip; transmit the card details, the signature data, the flag, a Merchant Category Code (MCC), and a transaction amount to the card processing server associated with the remote terminal for initiating a transaction; and receive an acknowledgement related to at least one of completion of the transaction or denial of the transaction from the card processing server, and wherein the card processing server is configured to: receive the card details, the transaction amount, the flag, the MCC, and the signature data of the payment card from the remote terminal; validate the payment card based on the card details and the signature data of the payment card; determine the value associated with the flag received from the remote terminal upon successful validation, wherein the value associated with the flag indicates one of two conditions; and perform one of a first action and a second action based on the condition indicated by the flag, wherein the first action comprises: processing the transaction when the MCC is determined correspond to a pre-configured MCC; and declining the transaction when the MCC is determined to not correspond to the pre-configured MCC, and wherein the second action comprises processing the transaction. ### Claim 11 (depends on 10) The system of claim 10, wherein the card details include at least one of: a card number, a Card Verification Value (CVV), an expiry date, a name, or any combination thereof. ### Claim 12 (depends on 11) The system of claim 11, wherein the card details include the card number, wherein the first portion includes a partial portion of the card number, and wherein the second portion includes the remaining portion of the card number. ### Claim 13 (depends on 11) The system of claim 11, wherein the card details include the CVV, wherein the second portion includes the CVV, and wherein the first portion does not include the CVV. ### Claim 14 (depends on 11) The system of claim 11, wherein the card details include each of: the card number, the CVV, the expiry date, and the name. ### Claim 15 (depends on 11) The system of claim 11, wherein the primary chip is configured in a first portion of the payment card and the secondary chip is configured in a second portion of the payment card, and wherein the first portion of the payment card and the second portion of the payment card form a unique pair that are detachable and communicatively connectable. ### Claim 16 (depends on 15) The system of claim 15, wherein the first portion of the payment card comprising the primary chip is communicatively interfaced with the remote terminal for initiating a transaction, and wherein the first portion of the payment card is attached or detached from the second portion of the payment card while initiating the transaction. ### Claim 17 (depends on 11) The system of claim 11, wherein the signature data comprises at least one of a first signature associated with the primary chip and a second signature associated with the secondary chip. ### Claim 18 (depends on 11) The system of claim 11, wherein the card processing server validates the payment card by relating a first signature associated with the primary chip and a second signature associated with the secondary chip to detect a match. ### Claim 19 (depends on 11) The system of claim 11, wherein the card processing server is further configured to detect an attachment or a detachment of the first portion of the payment card and the second portion of the payment card based on the value associated with the flag, wherein the card processing server determines the attachment when the value associated with the flag indicates a true condition, and wherein the card processing server determines the detachment when the value associated with the flag indicates a false condition.