{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526829","patent":{"patent_number":"US-8526829","title":"System, method and apparatus for clockless PPM optical communications","assignee":null,"inventors":[],"filing_date":"2010-08-25T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["H04B","H04L"],"num_claims":8,"abstract":"A PPM transmitter includes an optical clock generator for generating equally-spaced optical pulses with a sampling period T; an encoder for transforming an incoming waveform U(t) into a linear combination V(t) of U(t) and a delayed output V(t−kT) according to a rule V(t)=U(t)+aV(t−kT), where k is a positive integer, V(t) is voltage generated by the encoder and a is a coefficient; and an optical delay generator for delaying optical pulses generated by the optical clock generator in proportion to the voltage V(t), such that Δtn=bV(t), where b is another coefficient and where Δtn is the amount of delay imposed by the optical delay generator. The PPM transmitter functions with a PPM receiver for communicating data without the need to transmit or otherwise provide a clock signal. The PPM receiver decodes an original series of the delayed optical pulses Q(t) and a second series Q(t−ckT) delayed by ckT where c is a coefficient."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System, method and apparatus for clockless PPM optical communications","description":"A PPM transmitter includes an optical clock generator for generating equally-spaced optical pulses with a sampling period T; an encoder for transforming an incoming waveform U(t) into a linear combina","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526829","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-8526829","citation_suggestion":"Patentable. \"System, method and apparatus for clockless PPM optical communications\" (US-8526829). https://patentable.app/patents/US-8526829","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526829","json":"https://patentable.app/api/llm-context/US-8526829","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:53:48.452Z"}