{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9697449","patent":{"patent_number":"US-9697449","title":"Card with an offset field generator","assignee":null,"inventors":[],"filing_date":"2014-04-14T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["G06K","G06K","G06K"],"num_claims":15,"abstract":"An assembly of a card and a card reader, the card reader comprising a reading head configured to be positioned over a predetermined curve of the card while sensing the electromagnetic field and to output a signal relating to the field sensed, the card comprising an oblong field generator comprising at least two end portions configured to output at least part of the electromagnetic field, wherein the end portions are at least 1.8 mm wide and positioned so that, when projected on to a plane of the surface, an edge of each end portion is positioned no more than 0.5 mm from the curve and/or the curve not overlap the end portions in the projection. The curve is defined by the path of the reading head over the card. The card has a generator displaced in relation to standard cards where the generator is positioned directly under the curve."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Card with an offset field generator","description":"An assembly of a card and a card reader, the card reader comprising a reading head configured to be positioned over a predetermined curve of the card while sensing the electromagnetic field and to out","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9697449","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-9697449","citation_suggestion":"Patentable. \"Card with an offset field generator\" (US-9697449). https://patentable.app/patents/US-9697449","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9697449","json":"https://patentable.app/api/llm-context/US-9697449","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:46:17.310Z"}