{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9739140","patent":{"patent_number":"US-9739140","title":"Communication protocol in directional drilling system, apparatus and method utilizing multi-bit data symbol transmission","assignee":null,"inventors":[],"filing_date":"2015-09-03T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G01S"],"num_claims":69,"abstract":"A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveground portable device. The portable device receives the symbol stream for aboveground recovery of the sensor signals. The transmitter can precisely place the symbol frequencies at least to avoid a noise environment, as well as to avoid powerline harmonics, and can utilize wave shaping for transmitted symbols at least to provide for transmission power control, spectral content control and wideband antenna matching. The receiver can measure the noise environment to identify the symbol frequencies used by the transmitter. The noise can be scanned at an incremental resolution across a wide frequency bandwidth for display or automatic symbol frequency selection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Communication protocol in directional drilling system, apparatus and method utilizing multi-bit data symbol transmission","description":"A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveg","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9739140","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-9739140","citation_suggestion":"Patentable. \"Communication protocol in directional drilling system, apparatus and method utilizing multi-bit data symbol transmission\" (US-9739140). https://patentable.app/patents/US-9739140","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9739140","json":"https://patentable.app/api/llm-context/US-9739140","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:17:18.284Z"}