{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9641675","patent":{"patent_number":"US-9641675","title":"Digital signature-over-voice for caller ID verification","assignee":null,"inventors":[],"filing_date":"2016-11-30T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["H04M","H04L","H04L","H04M","H04M","H04M","H04M","H04M","H04M","H04W","H04W","H04M","H04M"],"num_claims":1,"abstract":"In an approach to caller ID verification by digital signature, a computing device receives authenticating information associated with a caller. The computing device creates a call record based on the authenticating information. The computing device retrieves additional information associated with the caller. The computing device updates the call record based on the additional information. The computing device retrieves a digital signature associated with the caller. The computing device retrieves public key information associated with the caller. The computing device performs a digital signature assessment based on the public key information. The computing device updates the call record based on the digital signature assessment. The computing device adds timestamp information to the call record. The computing device receives a request from a call recipient device. The computing device communicates information based on the call record to the call recipient device. The computing device marks the call record as expired."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital signature-over-voice for caller ID verification","description":"In an approach to caller ID verification by digital signature, a computing device receives authenticating information associated with a caller. The computing device creates a call record based on the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9641675","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-9641675","citation_suggestion":"Patentable. \"Digital signature-over-voice for caller ID verification\" (US-9641675). https://patentable.app/patents/US-9641675","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9641675","json":"https://patentable.app/api/llm-context/US-9641675","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:34:06.983Z"}