{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520790","patent":{"patent_number":"US-8520790","title":"Frame synchronization apparatus and method based on differential correlation in communication system","assignee":null,"inventors":[],"filing_date":"2010-05-03T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":9,"abstract":"A frame synchronization apparatus and method based on differential correlation in a communication system are provided. A correlation analysis is performed by using sync word in a prior search window and a posterior search window for obtaining a plurality of prior-window correlation values and a plurality of posterior-window correlation values, respectively. N maximum correlation values in the correlation values are selected, wherein indexes of the maximum correlation values are I1˜IN, and N is an integer greater than 0. The posterior-window correlation values are compared with a first threshold. If one of the posterior-window correlation values is greater than the first threshold, the index of the one is defined as J. If the index J is equal to one of the index I1˜IN, a check step is performed by using the index J for confirming that a position of the index J is a header position."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Frame synchronization apparatus and method based on differential correlation in communication system","description":"A frame synchronization apparatus and method based on differential correlation in a communication system are provided. A correlation analysis is performed by using sync word in a prior search window a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520790","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-8520790","citation_suggestion":"Patentable. \"Frame synchronization apparatus and method based on differential correlation in communication system\" (US-8520790). https://patentable.app/patents/US-8520790","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520790","json":"https://patentable.app/api/llm-context/US-8520790","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:35:51.590Z"}