Acoustic Camera Patents

Acoustic camera patents cover array/microphone innovations; beamforming/imaging innovations; processing/algorithm innovations; and application/system innovations — with IP held by acoustic-imaging, test-and-measurement, and industrial companies and research organizations (in a field of sound-source imaging). WHY ACOUSTIC CAMERAS: an 'ACOUSTIC CAMERA' is a device that 'SEES' SOUND — it uses an array of many MICROPHONES to LOCATE where sounds are coming from and overlays a colorful HEAT-MAP of the sound onto a normal camera image, so you can literally SEE the source of a noise, leak, or fault; by capturing the same sound at MANY microphones in a known GEOMETRY and analyzing the tiny TIMING differences between them (BEAMFORMING), the device computes the DIRECTION each sound comes from and builds an acoustic IMAGE — PINPOINTING, for example, the exact spot of a compressed-air or gas LEAK (which makes faint ULTRASONIC hiss), a failing BEARING, an electrical PARTIAL DISCHARGE (corona), or an unwanted NOISE source; this is hugely valuable for industrial MAINTENANCE (finding LEAKS and faults fast — saving energy and preventing failures), NOISE engineering (mapping noise on cars/products), and inspection; the brutal CHALLENGES: the ARRAY/MICROPHONE (the microphone array — geometry, number, and MEMS microphones — and the hardware), the BEAMFORMING/IMAGING (computing sound direction and building the acoustic image — resolution, frequency range, and especially ULTRASONIC (for leaks)), the PROCESSING/ALGORITHM (real-time beamforming, deconvolution/super-resolution, and separating sources/noise), and the APPLICATION/SYSTEM (a usable handheld or fixed device, overlay, and the specific application detection); the make-or-break IP AREAS: the ARRAY/microphone, the BEAMFORMING/imaging, the PROCESSING/algorithm, and the application/system; the HARD problems: the ARRAY, BEAMFORMING, PROCESSING, and APPLICATION. MAJOR PLAYERS: FLUKE/DISTRAN, SORAMA, GFAI TECH, plus acoustic-imaging and industrial companies. Array/microphone, beamforming/imaging, processing/algorithm, and application/system are the core acoustic-camera patent domains — and array, beamforming, processing, and application are the open whitespace. (Note: an ACOUSTIC CAMERA 'sees' SOUND — using an array of many MICROPHONES + BEAMFORMING (analyzing tiny TIMING differences) to locate where sounds come from + overlay a heat-map onto a camera image, so you literally SEE the source of a noise/LEAK/fault — pinpointing a compressed-air/gas LEAK/failing bearing/electrical PARTIAL DISCHARGE/noise source; valuable for industrial maintenance/noise engineering/inspection; brutal challenges in the ARRAY/MICROPHONE, the BEAMFORMING/IMAGING (esp. ULTRASONIC for leaks), the PROCESSING/ALGORITHM, and the APPLICATION/SYSTEM; array/hardware §101-resilient, beamforming/processing §101-care.)

Array/microphone innovations; beamforming/imaging innovations; microphone-array innovations; and ultrasonic-imaging innovations represent core acoustic-camera patent domains — and the array/microphone (the sensor) and the beamforming/imaging (turning sound into a picture) are the foundational, high-value capabilities (array/hardware §101-resilient; beamforming best tied to the device). ARRAY / MICROPHONE PATENTS: the SENSOR — the MICROPHONE ARRAY (the arrangement of many microphones — GEOMETRY/LAYOUT (spiral, grid, random — the layout strongly affects imaging quality and avoids artifacts), NUMBER of mics (more mics → better imaging, but more cost — and modern arrays use cheap MEMS MICROPHONES to pack many cheaply), and APERTURE (array size sets resolution)), CALIBRATION (calibrating the array precisely), and HARDWARE INTEGRATION (integrating the array, camera, and processing); array methods are core, high-value, DISTINCTIVE IP, §101-resilient (the MICROPHONE ARRAY (geometry/layout, number, MEMS mics, aperture, calibration) is core, contested, defensible IP, since the array geometry and microphone count/quality determine imaging resolution and cost — MEMS arrays enabled cheap, dense, high-quality acoustic cameras). BEAMFORMING / IMAGING PATENTS: the IMAGING — BEAMFORMING (the core technique — combining the microphone signals with appropriate time DELAYS so sounds from a chosen direction add up while others cancel; scanning directions builds the acoustic image — delay-and-sum, frequency-domain beamforming), acoustic IMAGE RESOLUTION (how finely sources can be localized), FREQUENCY RANGE (audible sound for noise, vs ULTRASONIC (above human hearing — where compressed-air/gas LEAKS hiss — so ULTRASONIC imaging is key for leak detection), and 2D/3D imaging; beamforming methods are core, high-value, DISTINCTIVE IP, §101-resilient when tied to the device (BEAMFORMING, image resolution, FREQUENCY range (esp. ULTRASONIC for leaks), and 2D/3D imaging tied to the array/device are core, contested IP, since beamforming turns the array into an acoustic image and ultrasonic imaging unlocks leak detection — best claimed tied to the array/system). MICROPHONE-ARRAY PATENTS: optimized MEMS microphone-array geometries for acoustic imaging; microphone-array methods are high-value IP, §101-resilient (the array geometry/MEMS is the core hardware enabler). ULTRASONIC-IMAGING PATENTS: ultrasonic acoustic imaging for leak/discharge detection; ultrasonic-imaging methods are high-value IP, §101-resilient when tied to the array (ultrasonic imaging is the key to leak/partial-discharge detection — a flagship application). Array/microphone, beamforming/imaging, microphone-array, and ultrasonic-imaging are the highest-value core IP because the microphone array and beamforming (especially ultrasonic) are exactly what let an acoustic camera see sound and find leaks.

Processing/algorithm innovations; application/system innovations; leak-detection innovations; and noise-mapping innovations represent additional acoustic-camera patent domains — and the processing/algorithm (sharpening the acoustic image) and the application/system (the usable device for a real job) turn beamforming into a deployed, valuable tool. PROCESSING / ALGORITHM PATENTS: the PICTURE — REAL-TIME PROCESSING (computing the acoustic image fast enough for a live overlay — a real compute challenge), DECONVOLUTION/SUPER-RESOLUTION (algorithms (CLEAN, DAMAS, functional beamforming, ML) that SHARPEN the acoustic image beyond basic beamforming's blur — improving resolution and removing artifacts), SOURCE SEPARATION (distinguishing multiple sound sources, separating the target from background noise), and NOISE REJECTION (rejecting reflections, wind, and irrelevant sounds); processing methods are valuable IP, §101-resilient when tied to the device (real-time processing, DECONVOLUTION/super-resolution, and source separation tied to the array/device are defensible, while pure beamforming algorithms are more §101-exposed — claim them tied to the acoustic-camera system, since the processing sharpens the image and separates the target). APPLICATION / SYSTEM PATENTS: the USE — LEAK DETECTION (the flagship industrial application — finding compressed-AIR and GAS leaks by their ultrasonic hiss — saving energy and money; also detecting gas leaks for safety), PARTIAL DISCHARGE (detecting electrical corona/partial discharge in high-voltage equipment — predictive maintenance), MECHANICAL FAULT/CONDITION MONITORING (failing bearings, valves), NOISE MAPPING (mapping noise sources on vehicles, products, machinery for noise engineering), and the DEVICE (the handheld or fixed CAMERA, the visual OVERLAY combining acoustic + optical, and ease of use); application/system methods are core, high-value, DISTINCTIVE IP, §101-resilient when tied to the device (LEAK DETECTION, PARTIAL DISCHARGE, condition monitoring, NOISE MAPPING, and the device/overlay are core value, since the application — especially leak detection (clear ROI) — is where acoustic cameras create value). LEAK-DETECTION PATENTS: ultrasonic acoustic imaging detecting/locating compressed-air/gas leaks; leak-detection methods are high-value IP, §101-resilient when tied to the device (leak detection is the flagship, clear-ROI acoustic-camera application). NOISE-MAPPING PATENTS: acoustic imaging mapping noise sources for engineering; noise-mapping methods are high-value IP, §101-resilient when tied to the device (noise mapping is a key industrial/automotive application). Processing/algorithm, application/system, leak-detection, and noise-mapping are the highest-value IP because image-sharpening processing and the right application (especially leak detection) turn beamforming into a deployed, valuable tool — with hardware §101-resilient and processing best tied to the device.

Acoustic camera startup IP strategy must navigate the §101-resilient-array-hardware-vs-beamforming-software-tie-to-the-device (the MICROPHONE ARRAY and hardware are §101-RESILIENT — while pure BEAMFORMING/processing ALGORITHMS are more §101-EXPOSED — so claim the array/hardware strongly, and tie beamforming/processing to the concrete acoustic-camera device/system), the leak-detection-is-the-killer-application-with-clear-ROI (the flagship, highest-ROI application is LEAK DETECTION — finding compressed-AIR and gas leaks by their ULTRASONIC hiss — because compressed-air leaks waste enormous energy/money in industry, and an acoustic camera finds them in seconds (vs hours of manual hunting) — so a startup should target leak detection (and gas-leak safety), where the value is concrete and the payback is fast, and ultrasonic-imaging IP is high-value), the mems-microphone-arrays-made-acoustic-cameras-cheap-and-are-key-IP (cheap, dense MEMS MICROPHONE ARRAYS transformed acoustic cameras from expensive lab tools into affordable handheld devices — so MEMS-array design/geometry IP is high-value, since it enabled the market and array quality drives imaging), the array-geometry-and-super-resolution-set-imaging-quality (the array GEOMETRY (layout) and SUPER-RESOLUTION processing determine imaging RESOLUTION and artifact-freedom — so array-geometry and deconvolution/super-resolution IP (tied to the device) are high-value, since better imaging finds smaller/closer sources), the ultrasonic-vs-audible-frequency-range-defines-the-application (AUDIBLE-frequency imaging suits NOISE mapping, while ULTRASONIC imaging suits LEAK/partial-discharge detection — so the frequency range is an application-defining design choice, and a startup should design for its target application), the handheld-affordable-device-vs-fixed-monitoring-strategy (acoustic cameras can be HANDHELD inspection tools (one-off finding) or FIXED/continuous monitoring systems (ongoing condition monitoring) — different products — so a startup must choose, and continuous-monitoring (IoT) is a growing model), the partial-discharge-and-predictive-maintenance-are-strong-adjacent-markets (PARTIAL DISCHARGE detection (electrical equipment) and broader predictive/condition MONITORING (bearings, valves) are strong adjacent markets to leaks — so a startup may expand the same platform to these), the incumbent-and-FTO (Fluke (acquired industrial acoustic imagers)/Distran (gas-leak), Sorama, gfai tech, FLIR (acoustic), CAE Systems, plus academia have significant IP — so a startup needs a genuinely novel array/beamforming/processing/application edge, and FTO is significant), the demonstrated-detection-sensitivity-resolution-and-ease-decide (acoustic cameras are proven by demonstrated detection SENSITIVITY (smallest leak/source found), imaging RESOLUTION, frequency range, EASE-of-use, and cost — so demonstrated, field-validated detection performance is decisive, more than patents alone), and a landscape where array, beamforming, processing, and application are the durable assets; understand that array hardware is §101-resilient and leak detection is the killer ROI, so the durable startup IP is in the MEMS array, ultrasonic beamforming, super-resolution processing, and leak/fault applications — with cheap dense arrays, ultrasonic leak imaging, and good super-resolution often the real moat, and that §101-resilient array IP, demonstrated detection/resolution/ease, application fit, and FTO matter as much as patents; identify whitespace in MEMS arrays, ultrasonic imaging, super-resolution, and leak/monitoring applications. ACOUSTIC CAMERA STARTUP IP STRATEGY: ARRAY/MICROPHONE, BEAMFORMING/IMAGING, PROCESSING/ALGORITHM, AND APPLICATION/SYSTEM ARE THE IP: patent arrays, beamforming/imaging, processing, and applications — array/hardware claims (§101-resilient; tie beamforming/processing to the device); §101-RESILIENT-ARRAY-HARDWARE-VS-BEAMFORMING-SOFTWARE-TIE-TO-THE-DEVICE: MICROPHONE ARRAY + hardware §101-RESILIENT — pure BEAMFORMING/processing ALGORITHMS more §101-EXPOSED — claim array/hardware strongly + tie beamforming/processing to the concrete acoustic-camera device/system; LEAK-DETECTION-IS-THE-KILLER-APPLICATION-WITH-CLEAR-ROI: the flagship highest-ROI application LEAK DETECTION (find compressed-AIR + gas leaks by ULTRASONIC hiss — compressed-air leaks waste enormous energy/money + an acoustic camera finds them in seconds vs hours) — target leak detection (+ gas-leak safety) + ultrasonic-imaging IP high-value (value concrete + payback fast); MEMS-MICROPHONE-ARRAYS-MADE-ACOUSTIC-CAMERAS-CHEAP-AND-ARE-KEY-IP: cheap dense MEMS MICROPHONE ARRAYS transformed acoustic cameras from expensive lab tools into affordable handhelds — MEMS-array design/geometry IP high-value (enabled the market + array quality drives imaging); ARRAY-GEOMETRY-AND-SUPER-RESOLUTION-SET-IMAGING-QUALITY: array GEOMETRY (layout) + SUPER-RESOLUTION processing determine imaging RESOLUTION + artifact-freedom — array-geometry + deconvolution/super-resolution IP (tied to device) high-value (better imaging finds smaller/closer sources); ULTRASONIC-VS-AUDIBLE-FREQUENCY-RANGE-DEFINES-THE-APPLICATION: AUDIBLE imaging suits NOISE mapping, ULTRASONIC imaging suits LEAK/partial-discharge — frequency range an application-defining design choice — design for the target application; HANDHELD-AFFORDABLE-DEVICE-VS-FIXED-MONITORING-STRATEGY: HANDHELD inspection tools (one-off) vs FIXED/continuous monitoring systems (ongoing) — different products — choose (continuous-monitoring IoT a growing model); PARTIAL-DISCHARGE-AND-PREDICTIVE-MAINTENANCE-ARE-STRONG-ADJACENT-MARKETS: PARTIAL DISCHARGE (electrical equipment) + broader predictive/condition MONITORING (bearings/valves) strong adjacent markets — expand the same platform; INCUMBENT-AND-FTO: Fluke (industrial acoustic imagers)/Distran (gas-leak)/Sorama/gfai tech/FLIR/CAE Systems + academia with significant IP — need a genuinely novel array/beamforming/processing/application edge + FTO significant; DEMONSTRATED-DETECTION-SENSITIVITY-RESOLUTION-AND-EASE-DECIDE: proven by detection SENSITIVITY (smallest leak/source found)/imaging RESOLUTION/frequency range/EASE-of-use/cost — demonstrated field-validated detection performance decisive (more than patents alone); §101-RESILIENT-ARRAY/DETECTION-RESOLUTION-EASE/APPLICATION-FIT/FTO MATTER AS MUCH AS PATENTS: §101-resilient array IP, demonstrated detection/resolution/ease, application fit, and FTO drive value; WHEN TO PATENT: NOVEL ARRAY/BEAMFORMING/PROCESSING/APPLICATION WITH DATA: file once it shows data (array geometry/mic-count + beamforming resolution/ultrasonic + super-resolution/source-separation + detection sensitivity) — array/hardware claims (tie beamforming/processing to the device); demonstrated detection sensitivity, imaging resolution, frequency range, and ease-of-use are the critical acoustic-camera IP metrics; KEY FTO CHECKLIST: Fluke/Distran/Sorama/gfai tech/FLIR/CAE Systems + academia; array/microphone (MICROPHONE ARRAY-geometry-layout-spiral-grid-random/number-MEMS microphones/aperture/calibration/hardware integration — §101-resilient, the sensor); beamforming/imaging (BEAMFORMING-delay-and-sum-frequency-domain/acoustic IMAGE resolution/FREQUENCY range-audible-vs-ULTRASONIC-for-leaks/2D-3D imaging — tie to device, §101-resilient); microphone-array (MEMS — the cheap enabler); ultrasonic-imaging (the key to leak/discharge detection); processing/algorithm (real-time/DECONVOLUTION-super-resolution-CLEAN-DAMAS-functional-ML/source SEPARATION/noise rejection — tie to device, §101-care); application/system (LEAK DETECTION-compressed-air-gas/PARTIAL DISCHARGE-electrical/mechanical-fault-condition-monitoring/NOISE MAPPING/handheld-fixed device-overlay — tie to device); leak-detection (the killer ROI); noise-mapping (industrial/automotive); §101-resilient array hardware vs beamforming-software-tie-to-the-device; leak-detection the killer application with clear ROI; MEMS microphone arrays made acoustic cameras cheap + are key IP; array-geometry + super-resolution set imaging quality; ultrasonic-vs-audible frequency range defines the application; handheld-affordable-device vs fixed-monitoring strategy; partial-discharge + predictive-maintenance strong adjacent markets; incumbent + FTO; demonstrated detection-sensitivity + resolution + ease decide.