{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11509338","patent":{"patent_number":"US-11509338","title":"Nested feedback for offset cancellation in a wireline receiver","assignee":null,"inventors":[],"filing_date":"2021-03-17T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":20,"abstract":"Systems and methods are provided for optimizing offset compensation in a receiver with multiple offset compensation D/A converters. At each stage where offset cancellation is applied, there is a fan-out of two or more. At the final stage, comparator offset compensation codes are summed and compared against a digital reference. In one version the digital reference is zero. A second implementation has a non-zero digital reference which is the sum of comparator offsets stored from start up. The difference between the sum of offsets and digital reference is applied to a digital accumulator. The most significant bits of the digital accumulator are applied to a digital D/A converter, which cancel analog offsets in an intermediate stage of amplifiers. The summation of offsets feeding into an accumulator is implemented for all preceding stages."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Nested feedback for offset cancellation in a wireline receiver","description":"Systems and methods are provided for optimizing offset compensation in a receiver with multiple offset compensation D/A converters. At each stage where offset cancellation is applied, there is a fan-o","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11509338","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-11509338","citation_suggestion":"Patentable. \"Nested feedback for offset cancellation in a wireline receiver\" (US-11509338). https://patentable.app/patents/US-11509338","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11509338","json":"https://patentable.app/api/llm-context/US-11509338","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:24:03.185Z"}