{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503125","patent":{"patent_number":"US-8503125","title":"Channel-source laser-pulsing system architecture for thermal-assisted recording","assignee":null,"inventors":[],"filing_date":"2011-05-27T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B"],"num_claims":20,"abstract":"A method and apparatus for generating a laser signal for driving a laser used in thermal-assisted recording. A channel of a hard drive generates a high-frequency component of the laser signal—e.g., a periodic wave or series of pulses—and synchronizes the phase of the laser signal with a corresponding write data signal which controls the magnetization of data bits within the magnetic disk of the hard drive. The channel may be connected to a read/write integrated circuit via a channel interconnect. The read/write circuit may include a second phase control to compensate for any phase shift and an adder circuit to combine the transmitted high-frequency laser with a DC bias. Further, the read/write circuit may include a feedback loop for adjusting the DC bias based on environmental parameters of the hard drive such as temperature."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Channel-source laser-pulsing system architecture for thermal-assisted recording","description":"A method and apparatus for generating a laser signal for driving a laser used in thermal-assisted recording. A channel of a hard drive generates a high-frequency component of the laser signal—e.g., a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503125","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-8503125","citation_suggestion":"Patentable. \"Channel-source laser-pulsing system architecture for thermal-assisted recording\" (US-8503125). https://patentable.app/patents/US-8503125","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503125","json":"https://patentable.app/api/llm-context/US-8503125","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:57:20.183Z"}