{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514979","patent":{"patent_number":"US-8514979","title":"Integrated demodulator, filter and decimator (DFD) for a radio receiver","assignee":null,"inventors":[],"filing_date":"2010-12-16T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":23,"abstract":"A superheterodyne receiver includes an A/D converter for converting an IF signal to a stream of samples at a sampling frequency that is four times the IF and a splitter that splits the stream of samples into a first set of even samples and a second set of odd samples. A first quadrature demodulator demodulates just the first set of even samples to produce one of real (I) and imaginary (Q) components of a complex signal at one half of the sampling frequency, and a second, parallel quadrature demodulator demodulates just the second set of odd samples to produce the other of the I and Q components. The demodulated first set is filtered using a first subset of filter coefficients, and the demodulated second set is filtered using a second subset of filter coefficients. The filter outputs correspond to a baseband complex signal. The technology disclosed reduces overall hardware complexity and operating frequency by a factor of two or more."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Integrated demodulator, filter and decimator (DFD) for a radio receiver","description":"A superheterodyne receiver includes an A/D converter for converting an IF signal to a stream of samples at a sampling frequency that is four times the IF and a splitter that splits the stream of sampl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514979","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-8514979","citation_suggestion":"Patentable. \"Integrated demodulator, filter and decimator (DFD) for a radio receiver\" (US-8514979). https://patentable.app/patents/US-8514979","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514979","json":"https://patentable.app/api/llm-context/US-8514979","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:04:52.193Z"}