{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11942998","patent":{"patent_number":"US-11942998","title":"Optical reception device, station-side device, PON system, preamplifier, optical reception method, and method for suppressing output inversion of integrator","assignee":null,"inventors":[],"filing_date":"2020-06-08T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":21,"abstract":"An optical reception device includes: a light receiving element; an amplifier which receives and amplifies a current based on an input current from the light receiving element; a direct-current adjustment circuit which removes an offset current included in the input current; an alternating-current adjustment circuit which causes a part of the input current to flow therein; and a controller which controls the direct-current adjustment circuit and the alternating-current adjustment circuit. The controller includes an integrator configured to integrate an output of the amplifier and output a resultant output to two electric paths of a positive phase and a negative phase, and an inversion suppression circuit configured to operate so as to inject a current to the positive phase and extract a current from the negative phase when a negative phase potential of an output of the integrator is higher than a positive phase potential thereof."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical reception device, station-side device, PON system, preamplifier, optical reception method, and method for suppressing output inversion of integrator","description":"An optical reception device includes: a light receiving element; an amplifier which receives and amplifies a current based on an input current from the light receiving element; a direct-current adjust","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11942998","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-11942998","citation_suggestion":"Patentable. \"Optical reception device, station-side device, PON system, preamplifier, optical reception method, and method for suppressing output inversion of integrator\" (US-11942998). https://patentable.app/patents/US-11942998","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11942998","json":"https://patentable.app/api/llm-context/US-11942998","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:16:06.010Z"}