{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10476549","patent":{"patent_number":"US-10476549","title":"Transmitter linearity built-in-self-test","assignee":null,"inventors":[],"filing_date":"2018-05-04T00:00:00.000Z","publication_date":"2019-11-12T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":20,"abstract":"An apparatus for testing a circuit includes a source signal input configured to receive a source signal, an evaluation signal input configured to receive an evaluation signal, and a coefficient extractor configured to extract a plurality of coefficients of a preselected polynomial representing the evaluation signal and the source signal. A weight factor storage contains a plurality of weight factors corresponding to frequency filters. An Adjacent Channel Power Ratio (ACPR) calculator is configured to calculate an ACPR value from the evaluation signal and the source signal by applying the plurality of weight factors from the weight factor storage to the plurality of coefficients the plurality of weight factors selected according to a main channel frequency range and an adjacent channel frequency range, and determining whether the ACPR value is within an acceptable range and generating a corresponding indication."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Transmitter linearity built-in-self-test","description":"An apparatus for testing a circuit includes a source signal input configured to receive a source signal, an evaluation signal input configured to receive an evaluation signal, and a coefficient extrac","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10476549","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-10476549","citation_suggestion":"Patentable. \"Transmitter linearity built-in-self-test\" (US-10476549). https://patentable.app/patents/US-10476549","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10476549","json":"https://patentable.app/api/llm-context/US-10476549","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:38:47.339Z"}