Camera-free sensing
for intrusion, stillness,
and temperature change
EchoPrint compares frequency-response changes captured through speakers and microphones to detect presence, motion, prolonged stillness, and temperature-change trends. It does not capture images or speech content, making it suitable for camera-sensitive spaces.
Intrusion & Residual Presence
Detect deformation from the baseline response
Stillness & Micro-state
Track subtle changes with little visible motion
Temperature Change Trends
Read environmental change through acoustic pattern movement
※ EchoPrint interprets only "frequency response pattern changes," not the content of sound.
11
Registered Patents
5
Filing Countries
22+
Pending Patents
3
Trademarks
Privacy-first
Status awareness, not surveillance. A non-visual approach applicable even in sensitive spaces.
Presence & Stillness
Detects presence and movement changes through irregular pattern deformations.
Temperature Change Trends
Tracks acoustic pattern movement to read environmental and temperature trends.
Operational Safety
Unifies safety, security, and facility monitoring into a single sensing layer.
Software-driven
Optimize performance for site conditions through algorithm and policy tuning.
PoC-friendly
Share your space details and we'll design a validation plan quickly.
Existing sensors fall short
Cameras carry privacy risks and installation constraints. Single-metric sensors can't interpret the full "state" of a space. In practice, operators need to determine whether someone is present, motionless, or whether the environment is changing abnormally—all in a unified flow.
Privacy Constraints
Camera-based detection is impractical in sensitive spaces
Interpretation Limits
Single sensors cannot assess complex spatial states
Cost & Complexity
Multi-sensor setups escalate installation and operating costs
Comparing spatial acoustic fingerprints over time
When high-frequency sound is emitted, acoustic waves undergo constructive and destructive interference within the space, creating a unique frequency response curve. We define this curve as an EchoPrint and analyze how it changes over time.
This distinguishes irregular changes such as intrusion and movement from gradual environmental changes such as rising temperature.
View TechnologyThe difference lies in "interpretation," not sensors
Non-visual, Privacy-friendly
Assesses spatial state through frequency response pattern changes — no images or conversations collected.
→ Ideal for bedrooms, hospital rooms, and secure zones where cameras are a concern.
Separating Presence & Environment
Distinguishes irregular deformation (presence) from pattern shift (temperature trends).
→ Enables nuanced state assessment, including "motionless presence."
Spatial Environmental Trends
Leverages how changes in the spatial medium are reflected in the pattern.
→ Expandable toward early detection of overheating or fire risk as supplementary signals.
Software-driven Scalability
Enables filtering, false-positive suppression, and alert policy design for site conditions.
→ Expandable to situation classification and AI integration via EDM-based datasets.
Safety without surveillance
Care & Daily Safety
Detects prolonged inactivity, abnormal night patterns, and rapid environmental changes as supplementary signals.
Sensitive Zone Security
Assists in detecting lingering or intrusion signs in spaces where CCTV is impractical.
Facility & Space Ops
Catches overheating and anomaly signs early based on environmental trend changes.
Mobility & Compact Spaces
Reduces status and lingering risks in vehicles, campers, and modular spaces non-visually.
Adoption is decided by "validation plans," not possibilities
EchoPrint determines deployment through step-by-step validation tailored to site conditions.
Stability
Verify that EchoPrint remains consistent under normal conditions
Responsiveness
Validate that irregular deformation appears reproducibly upon movement
Trend Tracking
Confirm that acoustic pattern movement is trackable during environmental changes
Robustness
Tune filtering and false-positive suppression under disturbance conditions
FAQ
Tell us about your space. We'll propose a validation plan.
Based on space type (size, materials, openness) and audio setup (speaker/mic placement), we define PoC goals and measurement items, then design step-by-step validation.