{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8511548","patent":{"patent_number":"US-8511548","title":"Method and system for performing card-based transactions using a portable device","assignee":null,"inventors":[],"filing_date":"2008-07-02T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G06K"],"num_claims":35,"abstract":"Some embodiments of the present invention provide a system that performs card-based transactions. During operation, the system displays a set of magnetic-stripe cards to a user through a user interface of a portable device and obtains a user selection of a magnetic-stripe card from the set of magnetic stripe cards. Next, the system writes magnetic-stripe data associated with the magnetic-stripe card to a rewritable magnetic stripe on the portable device. Finally, the system uses the rewritable magnetic stripe in the card-based transaction in place of the magnetic-stripe card."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and system for performing card-based transactions using a portable device","description":"Some embodiments of the present invention provide a system that performs card-based transactions. During operation, the system displays a set of magnetic-stripe cards to a user through a user interfac","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8511548","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8511548","citation_suggestion":"Patentable. \"Method and system for performing card-based transactions using a portable device\" (US-8511548). https://patentable.app/patents/US-8511548","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8511548","json":"https://patentable.app/api/llm-context/US-8511548","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:10:11.188Z"}