{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8463604","patent":{"patent_number":"US-8463604","title":"Speech encoding utilizing independent manipulation of signal and noise spectrum","assignee":null,"inventors":[],"filing_date":"2009-05-28T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L"],"num_claims":21,"abstract":"A method, system and program for encoding speech. The method comprises: receiving an input signal representing a property of speech; quantizing the input signal, thus generating a quantized output signal; prior to the quantization, supplying a version of the input signal to a first noise shaping filter having a first set of filter coefficients, thus generating a first filtered signal based on that version of the input signal and the first set of filter coefficients; following the quantization, supplying a version of the quantized output signal to a second noise shaping filter having a second set of filter coefficients different than said first set, thus generating a second filter signal based on that version of the quantized output signal and the second set of filter coefficients; performing a noise shaping operation to control a frequency spectrum of a noise effect in the quantized output signal caused by the quantization, wherein the noise shaping operation is performed based on both the first and second filtered signals; and transmitting the quantized output signal in an encoded signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Speech encoding utilizing independent manipulation of signal and noise spectrum","description":"A method, system and program for encoding speech. The method comprises: receiving an input signal representing a property of speech; quantizing the input signal, thus generating a quantized output sig","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8463604","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-8463604","citation_suggestion":"Patentable. \"Speech encoding utilizing independent manipulation of signal and noise spectrum\" (US-8463604). https://patentable.app/patents/US-8463604","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8463604","json":"https://patentable.app/api/llm-context/US-8463604","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:57:31.008Z"}