{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11942981","patent":{"patent_number":"US-11942981","title":"Receiver, communication system, control circuit, and storage medium","assignee":null,"inventors":[],"filing_date":"2022-04-22T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04W","H04W","H04W","H04W","H04B"],"num_claims":14,"abstract":"A receiver includes: a correlation value calculation unit calculating a first cross-correlation function between a received signal, having a preamble spread with an up chirp and a down chirp, and the up chirp and calculating a second cross-correlation function between the received signal and the down chirp; a power value calculation unit calculating first and second power values of the first and second cross-correlation functions; a correlation power memory storing the first and second power values at each sample timing for one period of a spread code; a threshold determination unit determining first and second estimated timings from the first and second power values for one period of the spread code, respectively; and an estimation unit estimating a spread code timing of a transmitter using the first and second estimated timings, and performing coarse estimation of a frequency offset with respect to the transmitter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Receiver, communication system, control circuit, and storage medium","description":"A receiver includes: a correlation value calculation unit calculating a first cross-correlation function between a received signal, having a preamble spread with an up chirp and a down chirp, and the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11942981","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-11942981","citation_suggestion":"Patentable. \"Receiver, communication system, control circuit, and storage medium\" (US-11942981). https://patentable.app/patents/US-11942981","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11942981","json":"https://patentable.app/api/llm-context/US-11942981","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:19:33.475Z"}