{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9800452","patent":{"patent_number":"US-9800452","title":"Digital quadrature modulator and switched-capacitor array circuit","assignee":null,"inventors":[],"filing_date":"2017-04-13T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L"],"num_claims":15,"abstract":"A digital quadrature modulator holds local oscillator circuitry configured to provide local oscillator signals, and local oscillator polarity logic circuitry configured to select an In-phase and a Quadrature local oscillator signal according to a sign bit of an In-phase control word and a sign bit of a Quadrature control word, respectively. The modulator holds a number of local oscillator control logic circuits, each configured to generate a conditioned signal by gating one or both of the selected local oscillator signals according to values of the In-phase control word and/or values of the Quadrature control word. The modulator has one or more sets of switched-capacitor units, where each unit has an output provided by an output capacitor, and where a signal at the input side of the output capacitor is controlled by a conditioned signal. The outputs of at least two of the switched-capacitor units are combined in a common node."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital quadrature modulator and switched-capacitor array circuit","description":"A digital quadrature modulator holds local oscillator circuitry configured to provide local oscillator signals, and local oscillator polarity logic circuitry configured to select an In-phase and a Qua","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9800452","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-9800452","citation_suggestion":"Patentable. \"Digital quadrature modulator and switched-capacitor array circuit\" (US-9800452). https://patentable.app/patents/US-9800452","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9800452","json":"https://patentable.app/api/llm-context/US-9800452","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:31:29.593Z"}