# US 10,504,105 B2 · Systems and methods for cards and devices operable to communicate to touch sensitive displays > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,504,105 B2 - Document ID: US10504105B2 - Status: Granted - Kind: B2 - Application number: 13/110,498 - Filed: 2011-05-18 - Published: 2011-11-24 - Granted: 2019-12-10 - Earliest claimed: 2010-05-18 - Assignees: Dynamics Inc. - Applicants: Jeffrey D. Mullen; David J. Hartwick - Inventors: Jeffrey D. Mullen; David J. Hartwick - Web page: https://patentgrep.com/patent/US10504105B2 ## CPC - G06Q 20/352: {Contactless payments by cards} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware} - G06F 3/044: by capacitive means - G07F 7/0833: {Card having specific functional components} - G07F 7/0853: {On-card keyboard means} - G07F 7/088: {the card reader being part of the point of sale [POS] terminal or electronic cash register [ECR] itself} - 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 - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 A card is provided with a touch transmitter operable to electrically communicate touch signals to a touch-sensitive screen such as a capacitive touch sensitive screen. In doing so, for example, a card may directly communicate with a mobile telephonic device or portable computer (e.g., a tablet computer). ## Claims ### Claim 1 A card comprising: a processor; memory; and a touch transmitter including a conductive plate, said processor operable to electrically communicate information stored in said memory to a touch sensitive screen via control signals received from said processor, wherein said processor is operable to change a capacitance of said conductive plate relative to a threshold, said change being at least one selected from the group consisting of below a capacitance threshold and above a capacitance threshold. ### Claim 2 (depends on 1) The card of claim 1, wherein said information is payment information. ### Claim 3 (depends on 1) The card of claim 1, wherein said touch transmitter includes a transistor coupled to said conductive plate, wherein said processor deactivates said transistor to decrease said capacitance of said conductive plate below said capacitance threshold. ### Claim 4 (depends on 1) The card of claim 1, wherein said touch transmitter includes a transistor coupled to said conductive plate, wherein said processor activates said transistor to increase said capacitance of said conductive plate above said capacitance threshold. ### Claim 5 A card comprising: a processor; memory; and a touch transmitter, said processor operable to electrically communicate information stored in said memory to a touch sensitive screen via control signals received from said processor, wherein said touch transmitter includes a transistor having an isolation circuit coupled between a control terminal of said transistor and said processor. ### Claim 6 A system comprising: a card including a touch transmitter with a conductive plate; and a device including a touch-sensitive screen, wherein said touch transmitter is operable to communicate information from said card to said device via said touch sensitive screen, and said card is operable to change a capacitance of said conductive plate relative to a threshold, said change being at least one selected from the group consisting of below a capacitance threshold and above a capacitance threshold. ### Claim 7 (depends on 6) The system of claim 6, wherein said information is payment information. ### Claim 8 (depends on 6) The system of claim 6, wherein said information is payment information used by said device to complete a purchase transaction. ### Claim 9 (depends on 6) The system of claim 6, wherein said information is authentication information. ### Claim 10 (depends on 6) The system of claim 6, wherein said information is authentication information used by said device to authorize a function performed by said device. ### Claim 11 (depends on 6) The system of claim 6, wherein said touch-sensitive screen includes a predetermined location operable to receive said communicated information. ### Claim 12 (depends on 6) The system of claim 6, wherein any portion of said touch-sensitive screen is operable to receive said communicated information. ### Claim 13 (depends on 6) The system of claim 6, wherein said touch-sensitive screen includes a status indicator operable to indicate a status of said communicated information. ### Claim 14 (depends on 6) The system of claim 6, wherein said touch-sensitive screen includes a status indicator operable to indicate a status of said communicated information, wherein said status indicator indicates whether said communicated information is received. ### Claim 15 (depends on 6) The system of claim 6, wherein said touch-sensitive screen includes a status indicator operable to indicate a status of said communicated information, wherein said status indicator indicates whether said communicated information is valid. ### Claim 16 A method comprising: activating a button to initiate communication; placing a card against a device; simulating a touch by said card; detecting said simulated touch by said device; and storing said detection within said device as data communicated by said card to said device, wherein simulating a touch includes increasing a capacitance of a conductive plate of said card above a capacitance threshold. ### Claim 17 (depends on 16) The method of claim 16, wherein said communicated data is payment information used by said device to complete a purchase transaction. ### Claim 18 (depends on 16) The method of claim 16, wherein said communicated data is authentication information used by said device to authorize a function performed by said device. ### Claim 19 (depends on 16) The method of claim 16, further comprising providing feedback from said device indicative of a status of said detection.