{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526131","patent":{"patent_number":"US-8526131","title":"Systems and methods for signal polarity determination","assignee":null,"inventors":[],"filing_date":"2010-11-29T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B"],"num_claims":21,"abstract":"Various embodiments of the present invention provide systems and methods for determining head polarity. As an example, a head polarity detection circuit includes: a first computation circuit, a second computation circuit, and an inversion determination circuit. The first computation circuit is operable to sum an absolute value of each sample of a first subset of a series of data samples corresponding to a first phase of an analog input to yield a first sum, and the second computation circuit is operable to sum an absolute value of each sample of a second subset of the series of data samples corresponding to a second phase of the analog input to yield a second sum. The first phase is more than ninety degrees offset from the second phase."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Systems and methods for signal polarity determination","description":"Various embodiments of the present invention provide systems and methods for determining head polarity. As an example, a head polarity detection circuit includes: a first computation circuit, a second","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526131","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-8526131","citation_suggestion":"Patentable. \"Systems and methods for signal polarity determination\" (US-8526131). https://patentable.app/patents/US-8526131","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526131","json":"https://patentable.app/api/llm-context/US-8526131","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:07:57.102Z"}