{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602889","patent":{"patent_number":"US-9602889","title":"Method and a device for selecting a participating device","assignee":null,"inventors":[],"filing_date":"2015-01-28T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04N","G07F","H04M","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":13,"abstract":"A main screen renders watermarked content. A remote device captures a watermark and extracts a payload comprising a layout type, displays possible answers according to the layout type and receives a response from a user. The remote device captures a further watermark and extracts a payload comprising a correct answer, a ratio value and a token value. If the correct answer is equal to the answer received from the user, the remote device generates a comparison value, compares the comparison value and a ratio value extracted from the payload and, if the comparison between the comparison value and the ratio value indicates that remote device has been selected, displays a message intended to a user. The remote device can further generate a value from at least the token value and display this value as proof of being selected."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and a device for selecting a participating device","description":"A main screen renders watermarked content. A remote device captures a watermark and extracts a payload comprising a layout type, displays possible answers according to the layout type and receives a r","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602889","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-9602889","citation_suggestion":"Patentable. \"Method and a device for selecting a participating device\" (US-9602889). https://patentable.app/patents/US-9602889","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602889","json":"https://patentable.app/api/llm-context/US-9602889","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:44:57.544Z"}