{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10530491","patent":{"patent_number":"US-10530491","title":"Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver","assignee":null,"inventors":[],"filing_date":"2017-05-26T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":17,"abstract":"The disclosed coherent optical receiver includes a local light source; a 90-degree hybrid circuit; an optoelectronic converter; an analog-to-digital converter; a skew addition unit; and a FFT operation unit. The 90-degree hybrid circuit makes multiplexed signal light interfere with local light from the local light source, and outputs multiple optical signals separated into a plurality of signal components. The optoelectronic converter detects the optical signal and outputs a detected electrical signal. The analog-to-digital converter digitizes the detected electrical signal and outputs a detected digital signal. The skew addition unit adds to the detected digital signal an additional skew amount whose absolute value is equal to, whose sign is opposite to a skew amount of a difference in propagation delay in each lane connected to each output channel of the 90-degree hybrid circuit. The FFT operation unit performs a fast Fourier transform on the output from the skew addition unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver","description":"The disclosed coherent optical receiver includes a local light source; a 90-degree hybrid circuit; an optoelectronic converter; an analog-to-digital converter; a skew addition unit; and a FFT operatio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10530491","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-10530491","citation_suggestion":"Patentable. \"Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver\" (US-10530491). https://patentable.app/patents/US-10530491","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10530491","json":"https://patentable.app/api/llm-context/US-10530491","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:30:14.453Z"}