MUMBAI, India, Aug. 24 -- Intellectual Property India has published a patent application (202641095710 A) filed by Dr. M. Nithya on August 07, 2026, for "hybrid Quantum-Classical Sensor Fusion System For High-Precision Metrology And Real-Time Data Encryption.
Inventors include Dr. M. Nithya; and C. Sivakumar.
The application for the patent was published on August 21, 2026, under issue no. 34/2026.
Abstract: Precision metrology systems are fundamentally constrained by classical noise floor limits, thermal decoherence, and susceptibility to cyber-physical interception during data telemetry transmission. Conventional quantum sensing architectures, while offering high sensitivity via quantum phenomena, often rely on offline post-processing and lack real-time integration with secure communication protocols. To overcome these operational bottlenecks, the present invention discloses a novel hybrid quantum-classical sensor fusion architecture that unifies high-sensitivity atomic quantum state collection, dynamic quantum noise mitigation, real-time closed-loop machine learning optimization, and quantum-encrypted multi-node telemetry into a cohesive platform. The system incorporates an atomic Nitrogen-Vacancy (NV) diamond sensing head driven by green laser excitation optics ($532 ext{ nm}$), integrated within a magnetic shield and vibration isolation unit. Spin-dependent photoluminescence signals are captured, sampled, and transformed into high-dimensional complex quantum state vectors ($ Wert psi
angle$) via an optoelectronic converter assisted by an FPGA. An on-chip Quantum Processing Unit (QPU) applies dynamic noise filtration including Dynamical Decoupling (DD), Zero-Noise Extrapolation (ZNE), and Measurement Error Mitigation (MEM) in conjunction with a cryogenic feedback controller. A variational quantum algorithm feedback loop continuously updates control parameters via a classical AI/ML optimizer, while squeezed-light state injection provides enhanced measurement precision beyond standard quantum shot-noise limits. To guarantee absolute telemetry integrity across distributed sensor nodes, the conditioned state outputs are directly coupled to an integrated Quantum Key Distribution (QKD) communication module. Operating via single-photon polarization encoding ($1550 ext{ nm}$) and an optical parametric down-conversion (SPDC) entangled photon source, the system executes automated sifting, error estimation, key reconciliation, and privacy amplification to produce unconditional cryptographic keys. High-precision metrology telemetry is encrypted and routed across a multi-node quantum fiber network managed by a unified Master Command Station dashboard, offering robust, unhackable monitoring for critical defense, industrial, and infrastructure applications.
Disclaimer: Curated by HT Syndication.
