Intersection cross-cut: garment ∩ algo-hrv

Axes: form_factor × algorithms

3 corpus entries disclose both tags.

Earliest disclosure: 2013

These entries are the direct inputs to OBVIOUSNESS_TEMPLATE.md. Any patent claim combining these two elements is anticipated or rendered obvious by the chain below.

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Hexoskin smart shirt (2014) — textile-integrated ECG, respiration and activity garment (2013)

• id: hexoskin-smart-shirt-2014
• corpus: private
• form factor: garment
• creator: Carre Technologies Inc.
• disclosure: Carre Technologies Inc. (Hexoskin). ‘Hexoskin Smart Shirt’, introduced 2013 (consumer); a compression shirt with knitted dry textile electrodes for single-lead ECG, two-channel respiratory inductive plethysmography (thoracic + abdominal expansion), a 3-axis accelerometer, and a removable electronics pod, deriving HR, HRV, breathing rate/volume, cadence, steps, and sleep. (Used in NASA/CSA ‘Astroskin’ studies.)
• ip status: patented
• sensors: sensor-ecg, sensor-respiration-impedance, sensor-piezoelectric, sensor-accelerometer
• algorithms: algo-hr, algo-hrv, algo-respiratory-rate, algo-activity-classification, algo-sleep-staging
• prior art notes: Discloses a consumer/research compression shirt with textile-integrated dry ECG electrodes, two-channel respiratory inductive plethysmography (thoracic + abdominal), an accelerometer, and a removable electronics pod, deriving HR, HRV, breathing rate and volume, activity, and sleep. A commercial realization of [[paradiso-2005-wealthy-knitted-smart-shirt]]; anticipates smart-shirt claims combining ‘textile-integrated ECG and respiration sensors’ and ‘a detachable electronics module’ from 2013. Product-side anchor for the garment × textile-electrode cross-cut.

Inan et al. (2015) — ballistocardiography and seismocardiography review (2014-10-07)

• id: inan-2015-bcg-scg-review
• corpus: academic
• form factor: other
• creator: Omer T. Inan et al.
• disclosure: Inan OT, Migeotte P-F, Park K-S, Etemadi M, Tavakolian K, Casanella R, Zanetti J, Tank J, Funtova I, Prisk GK, Di Rienzo M. ‘Ballistocardiography and seismocardiography: a review of recent advances.’ IEEE Journal of Biomedical and Health Informatics 2015;19(4):1414-1427.
• ip status: public-domain
• sensors: sensor-accelerometer, sensor-piezoelectric
• algorithms: algo-hr, algo-hrv, algo-pwv-bp-estimation
• prior art notes: Reviews ballistocardiography (whole-body reaction force from cardiac ejection, measured at the seat/scale/bed) and seismocardiography (local chest vibration from cardiac motion, measured by accelerometers on the sternum) and their integration into bathroom scales, weighing chairs, beds, and chest patches — i.e. the mechanical-cardiac-signal route to heart rate, HRV, and cardiac-timing-interval / stroke-volume estimation. Prior art for claims reciting ‘measuring cardiac activity from a body-worn or support-mounted accelerometer/force sensor’, as both the BCG and SCG approaches and their wearable instantiations were collected and reviewed by 2015. Anchor for the BCG/SCG cross-cut.

Polar H10 (2017) — research-grade chest-strap ECG heart-rate sensor (2017-01)

• id: polar-h10-chest-strap-2017
• corpus: private
• form factor: garment
• creator: Polar Electro Oy
• disclosure: Polar Electro Oy. ‘Polar H10’ chest heart-rate sensor, released 2017 — a chest strap with two dry electrodes deriving a single-lead ECG, computing R-R intervals and heart rate, with onboard 1-session memory, dual-broadcast (BLE + ANT+ + 5 kHz GymLink), an accelerometer (relative orientation), and well-documented R-R-interval accuracy (often used as a gold-standard reference for consumer wearables).
• ip status: patented
• sensors: sensor-ecg, sensor-accelerometer
• algorithms: algo-hr, algo-hrv, algo-arrhythmia-classification
• prior art notes: Discloses a chest strap with two dry electrodes deriving single-lead ECG, with on-strap R-R-interval computation, multi-protocol broadcast (BLE + ANT+ + the 5 kHz GymLink legacy band), and accelerometer-assisted noise rejection. Anticipates chest-strap-ECG claims combining ‘dry textile/elastic chest electrodes’, ‘on-strap derivation of R-R intervals and HR’, and ‘multi-protocol simultaneous wireless broadcast’ from 2017. Product-side anchor for the garment/patch × ECG strap cross-cut; refines [[polar-sport-tester-pe2000-1982]].