{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9778753","patent":{"patent_number":"US-9778753","title":"Keyboard with improved reliability","assignee":null,"inventors":[],"filing_date":"2015-12-16T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":9,"abstract":"A keyboard comprises: several keys operated by a user, the operating forming, for each key, a signal representative, a flat waveguide having a first and second external face for a wave of light to reflect between the faces, the first face of the waveguide comprising an altered zone so part of the wave leaves the waveguide via the altered zone to backlight the keyboard, for each key a plunger moved between two positions, one in contact with the first face and the other distant from the first face, contact of the plunger with the first face causing the reflection of the wave in the waveguide to be locally frustrated, associated with each of the plungers, a sensor arranged in an empty space delimited by the second face, the sensor associated with the plunger and configured to detect the frustration of the reflection, the sensor forming the representative signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Keyboard with improved reliability","description":"A keyboard comprises: several keys operated by a user, the operating forming, for each key, a signal representative, a flat waveguide having a first and second external face for a wave of light to ref","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9778753","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-9778753","citation_suggestion":"Patentable. \"Keyboard with improved reliability\" (US-9778753). https://patentable.app/patents/US-9778753","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9778753","json":"https://patentable.app/api/llm-context/US-9778753","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:19:39.047Z"}