{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11947128","patent":{"patent_number":"US-11947128","title":"Digital illumination assisted gaze tracking for augmented reality near to eye displays","assignee":null,"inventors":[],"filing_date":"2020-09-14T00:00:00.000Z","publication_date":"2024-04-02T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":14,"abstract":"A gaze tracking platform for human-machine interface device, such as a wearable Augmented Reality Near-to-Eye Display. The gaze tracking method, digital illumination assisted analog feedback tracking employs neither auxiliary camera nor digital image processing of human eye image that confronts challenges in gaze tracking speed, power, cost and space. Instead, an analog-digital hybrid method to track the gaze inspired by the groove tracking method that is widely adopted for optical data storage systems. In the method, a digital micromirror device generates angular modulated and infrared illuminating beam. The cornea reflects the infrared light and a segmented photodiode detects the reflection while providing a feedback servo signal to the digital micromirror device controller. The feedback signal is integrated over a time provides the variation gaze. Moreover, infrared and angularly modulated illumination is time-multiplexed with information displayed in visible wavelength. In this manner, single display device is dual used for information display and gaze tracking that benefits especially augmented reality devices in terms of achieving small device form factor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital illumination assisted gaze tracking for augmented reality near to eye displays","description":"A gaze tracking platform for human-machine interface device, such as a wearable Augmented Reality Near-to-Eye Display. The gaze tracking method, digital illumination assisted analog feedback tracking ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11947128","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-11947128","citation_suggestion":"Patentable. \"Digital illumination assisted gaze tracking for augmented reality near to eye displays\" (US-11947128). https://patentable.app/patents/US-11947128","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11947128","json":"https://patentable.app/api/llm-context/US-11947128","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T16:15:11.595Z"}