{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9760822","patent":{"patent_number":"US-9760822","title":"Method and circuit of an actively transmitting tag","assignee":null,"inventors":[],"filing_date":"2014-01-14T00:00:00.000Z","publication_date":"2017-09-12T00:00:00.000Z","cpc_codes":["H04B","G06K","G06K","G06K","G06K","H04B","G06K","H04B"],"num_claims":34,"abstract":"An actively transmitting tag detects a shift of a phase of an antenna signal (as) with regard to a phase of a transmitted signal (ts) in time intervals with a length of one half-period of a subcarrier, in which time intervals it transmits high-frequency wave packets with their phase being inverted according to a communication protocol at the ends of said half-periods. Generation of said wave packets is controlled by said phase shift in a way that said phase shift retains its absolute value at transitions into subsequent half-periods. Synchronizing the tag's transmission to a received interrogator signal carried out even during tag's transmitting enables the tag to transmit according to protocol ISO 14443 B by inverting a phase at transitions between said half-periods. Said synchronizing is carried out although no time window without a tag transmitting exists within the transmitted data frame."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and circuit of an actively transmitting tag","description":"An actively transmitting tag detects a shift of a phase of an antenna signal (as) with regard to a phase of a transmitted signal (ts) in time intervals with a length of one half-period of a subcarrier","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9760822","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-9760822","citation_suggestion":"Patentable. \"Method and circuit of an actively transmitting tag\" (US-9760822). https://patentable.app/patents/US-9760822","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9760822","json":"https://patentable.app/api/llm-context/US-9760822","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T19:50:33.415Z"}