Key Largo inventor wins patent for media frequency detection tech

Randy Segal, an independent inventor in Key Largo, has secured a U.S. patent for a system that detects audio and visual frequency patterns tied to cognitive entrainment signals in digital media. The technology is already live in his FreqCheck iOS app, which he says can provide real-time frequency awareness to users. Why it matters: - The patent gives Segal legal protection for technology aimed at spotting audio and visual patterns that could influence brain activity without a viewer’s awareness. - The system is designed for real-time use in digital media, which could make it relevant for platforms, device makers and consumer safety tools. - Segal is also positioning the technology for licensing or acquisition. What happened: - Randy Segal, a 63-year-old independent inventor in Key Largo, announced the issuance of U.S. Patent No. 12659418. - The patent covers a “System and Method For Multi-Modal Detection of Cognitive Entrainment Signals In Digital Media.” - Segal began the project in mid-December 2025 and said he built the invention, patented engine, iOS app and web platform himself with artificial intelligence as his only collaborator. - The technology is live in FreqCheck, an iPhone and iPad app available in the App Store and at FreqCheck.com . The details: - The patent describes methods for analyzing audio and visual frequency data and generating a threat assessment when patterns associated with brainwave entrainment ranges are detected. - The system is designed to detect frequencies from 0.5 Hz through 30+ Hz. - Segal says the platform can monitor audio and visual data streams in real time, including both live and recorded media, before exposure reaches the user. - The underlying signal engine was calibrated by Florida Standards Laboratory, an ISO/IEC 17025-accredited facility, with NIST-traceable results. - Segal compares the framework to the Harding Test, which screens broadcast video for photosensitive epilepsy triggers. - The patent is supported by continuation patent pending application 19/660,467 and registered federal copyright protection for the codebase and application architecture. Between the lines: - The filing targets a niche that sits between media safety, neurotechnology and platform infrastructure. - Segal is framing the invention as broader than traditional content screening because it is built for continuous monitoring across audio and visual channels. - The use of AI as a development partner is central to Segal’s pitch and to the story of how a first-time inventor moved from concept to patent quickly. What’s next: - Segal said he is exploring the best opportunity to bring the technology forward. - Licensing or acquisition inquiries can be directed through FreqCheck.com . - The company is also pointing users to Segal’s LinkedIn profile and YouTube channel for more information.