{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8542878","patent":{"patent_number":"US-8542878","title":"Method of controlling a function of a device and system for detecting the presence of a living being","assignee":null,"inventors":[],"filing_date":"2010-03-01T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["G06V","G06T","G06V","G06T","G06T","G06T","G06T"],"num_claims":22,"abstract":"A method of controlling a function of a device, includes obtaining a sequence (19;34;48) of digital images taken at consecutive points in time. At least one measurement zone (25) including a plurality of image points is selected. For at least one measurement zone (25), a signal (30;41;55) representative of at least variations in a time-varying value of a combination of pixel values at at least a number of the image points is obtained and at least one characteristic of the signal (30;41;55) within at least a range of interest of its spectrum relative to comparison data is determined. The determination comprises at least one of: (i) determining whether the signal (30;41;55) has a spectrum with a local maximum at a frequency matching a comparison frequency to a certain accuracy; and (ii) determining whether at least a certain frequency component of the signal (30;41;55) is in phase with a comparison signal to a certain accuracy. The function is controlled in dependence on whether the determination is positive."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of controlling a function of a device and system for detecting the presence of a living being","description":"A method of controlling a function of a device, includes obtaining a sequence (19;34;48) of digital images taken at consecutive points in time. At least one measurement zone (25) including a plurality","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8542878","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-8542878","citation_suggestion":"Patentable. \"Method of controlling a function of a device and system for detecting the presence of a living being\" (US-8542878). https://patentable.app/patents/US-8542878","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8542878","json":"https://patentable.app/api/llm-context/US-8542878","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:36:07.730Z"}