Cross-cut: headband

Axis: form_factor

14 corpus entries disclose this tag.

Earliest disclosure: 1911-04

Listed in chronological order. Each entry’s prior_art_notes and disclosure_citation constitute the citeable prior art material.

Ralph 124C 41+ — the ‘Hypnobioscope’ (head-worn sleep-state learning device) (1911-04)

  • id: gernsback-hypnobioscope
  • corpus: fictional
  • form factor: headband
  • creator: Hugo Gernsback
  • disclosure: Gernsback, Hugo. Ralph 124C 41+, serialized in Modern Electrics beginning April 1911 (book edition 1925); the ‘Hypnobioscope’ — a head-worn device that transmits printed/spoken information into the brain of a sleeping wearer for learning during sleep.
  • ip status: fictional
  • prior art notes: Discloses a head-worn device used during sleep that delivers information into the wearer’s brain — i.e. a wearable sleep-state learning/stimulation device. Relevant to sleep-stimulation and sleep-learning wearable claims combining ‘a head-worn transducer’, ‘operation during the wearer’s sleep’, and ‘delivery of a stimulus/content keyed to sleep state’. § 103 motivation that the wearable sleep-learning device was an articulated objective by 1911 — the deep antecedent for the modern sleep-headband patent space. Cf. [[strange-days-squid-recorder]].

Mobile Suit Gundam — ‘psycommu’ head-worn neural interface for remote weapon control (1979-04-07)

  • id: gundam-psycommu-interface
  • corpus: fictional
  • form factor: helmet
  • creator: Yoshiyuki Tomino / Nippon Sunrise
  • disclosure: Mobile Suit Gundam (Nippon Sunrise television series, premiered 7 April 1979); the ‘psycommu’ system — a head-worn interface that reads the pilot’s brainwaves to direct remote weapon units (‘funnels’/’bits’) and control the mobile suit without manual input.
  • ip status: fictional
  • sensors: sensor-dry-eeg-electrode
  • prior art notes: Discloses a head-worn neural sensor that decodes the wearer’s intent from brain activity and uses it to command remote machines/weapons and a piloted vehicle hands-free. Relevant to wearable-BCI claims combining ‘a head-worn neural sensor array’, ‘decoding of operator intent’, and ‘transmission of commands to remote devices’. § 103 motivation that the wearable neural-control interface for remote devices was an articulated objective by 1979 — predating [[surrogates-neural-teleoperation-rig]].

Neuromancer — ‘trodes’ (head-worn cyberspace interface) and ‘simstim’ (worn sensory-broadcast rig) (1982-07)

  • id: neuromancer-cyberspace-deck-trodes-and-simstim
  • corpus: fictional
  • form factor: headband
  • creator: William Gibson
  • disclosure: Gibson, William. ‘Burning Chrome’, Omni, July 1982 (and Neuromancer, Ace Books, 1984); ‘simstim’ — a worn rig that records and broadcasts one person’s complete sensory experience for another to inhabit — and the head-worn electrode set (‘trodes’) by which a ‘console cowboy’ jacks into the ‘matrix’/cyberspace.
  • ip status: fictional
  • sensors: sensor-dry-eeg-electrode
  • prior art notes: Discloses (a) a head-worn, non-implanted electrode set providing bidirectional neural interface to a virtual/data environment, and (b) a worn rig that captures one wearer’s full multisensory stream and broadcasts it for another to experience. Relevant to wearable-BCI and wearable-sensory-broadcast claims. § 103 motivation as of 1982 — predating [[strange-days-squid-recorder]] (1995) for sensory broadcast, and a head-worn (non-implanted) alternative to [[the-matrix-headjack]]. Non-enabling.

Neon Genesis Evangelion — ‘plug suit’ and ‘A10 nerve clips’ (bio-monitoring suit + head-worn neural sync interface) (1995-10-04)

  • id: nge-plug-suit-and-a10-clips
  • corpus: fictional
  • form factor: garment
  • creator: Hideaki Anno / Gainax
  • disclosure: Neon Genesis Evangelion (Gainax television series, premiered 4 October 1995); pilots wear a skin-tight pressurized ‘plug suit’ with continuous bio-monitoring and a measured ‘synchronization ratio’ with the mecha, plus ‘A10 nerve clips’ worn on the head that interface the pilot’s nervous system to the machine.
  • ip status: fictional
  • sensors: sensor-ecg, sensor-dry-eeg-electrode, sensor-respiration-impedance
  • algorithms: algo-hr, algo-respiratory-rate
  • prior art notes: Discloses (a) a form-fitting body garment with continuous vital-sign monitoring and a derived operator-machine synchronization metric, and (b) head-worn clips coupling the wearer’s nervous system to an external system. Relevant to instrumented-bodysuit claims combining ‘a close-fitting garment with distributed physiological sensors’ and ‘a derived synchronization/engagement metric’, and to head-worn neural-interface claims. § 103 motivation as of 1995. Cf. [[pacific-rim-drivesuit-and-conn-pod]] (a later dual-pilot variant).

Surrogates — head-worn neural interface rig for robot-body telepresence (2005-08-17)

  • id: surrogates-neural-teleoperation-rig
  • corpus: fictional
  • form factor: headband
  • creator: Robert Venditti and Brett Weldele
  • disclosure: Venditti, Robert; Weldele, Brett. The Surrogates #1. Top Shelf Productions, 2005 (film adaptation: Touchstone Pictures, 2009); operators recline in a chair wearing a head-mounted neural interface that captures their volition and sensory channels to remotely embody and control a humanoid robot ‘surrogate’, receiving its sensory feedback in return.
  • ip status: fictional
  • sensors: sensor-dry-eeg-electrode, sensor-eeg
  • prior art notes: Discloses a head-worn neural-interface rig that reads the wearer’s motor intent and routes sensory feedback, used to teleoperate a humanoid robot with the operator perceiving through the robot’s sensors. Relevant to wearable-BCI teleoperation claims combining ‘a head-worn neural sensor array’, ‘decoding of motor intent’, ‘transmission of commands to a remote robot’, and ‘return of the robot’s sensory data to the wearer’. § 103 motivation that the wearable neural-interface telepresence rig was an articulated objective by 2005. Non-enabling; pair with enabling BCI/teleop art.

NeuroSky MindSet / MindWave (2007) — single dry-electrode consumer EEG headset (2007)

  • id: neurosky-mindset-2007
  • corpus: private
  • form factor: headband
  • creator: NeuroSky, Inc.
  • disclosure: NeuroSky, Inc. ‘MindSet’ (and later ‘MindWave’) consumer EEG headset, with the ‘ThinkGear’ single dry forehead (Fp1) electrode and ear-clip reference, output as ‘eSense’ attention and meditation metrics plus raw EEG, first shown 2007.
  • ip status: patented
  • sensors: sensor-dry-eeg-electrode, sensor-eeg
  • algorithms: algo-attention-state, algo-cognitive-workload
  • prior art notes: Discloses a low-cost head-worn single-channel dry-electrode EEG device (forehead pickup, ear reference) outputting raw EEG plus derived ‘attention’ and ‘meditation/relaxation’ metrics to a paired device. Anticipates consumer-EEG-headband claims combining ‘a head-worn dry forehead electrode with an ear reference’, ‘on-device band-power feature extraction’, and ‘a derived attention/relaxation index’ from 2007. Product-side anchor for the headband × EEG cross-cut; predates Muse (2014) and Emotiv EPOC (2009).

Emotiv EPOC (2009) — 14-channel wireless saline-electrode consumer EEG headset (2009-12)

  • id: emotiv-epoc-2009
  • corpus: private
  • form factor: headband
  • creator: Emotiv Systems
  • disclosure: Emotiv Systems. ‘EPOC’ EEG headset, released December 2009 — a 14-channel (plus 2 reference) wireless headset with saline-felt electrodes covering frontal/temporal/parietal/occipital sites, with SDKs for mental-command, facial-expression and ‘affective’ detections.
  • ip status: patented
  • sensors: sensor-saline-eeg-electrode, sensor-eeg
  • algorithms: algo-cognitive-workload, algo-emotion-recognition, algo-bci-motor-imagery
  • prior art notes: Discloses a wireless multi-channel (14+2) consumer EEG headset with saline-wetted contact electrodes at standard scalp sites and on-device/SDK classifiers for mental commands, facial expressions, and affective states. Anticipates multi-channel consumer-EEG-headset claims combining ‘a wireless head-worn array of ≥8 contact electrodes’, ‘wet/saline electrode coupling’, and ‘classification of cognitive/affective state or intent’ from 2009. Product-side anchor for the headband/cap × EEG cross-cut.

OpenBCI Cyton — open-source 8-channel biosignal (EEG/EMG/ECG) acquisition board and 3D-printed headset (2014-01-22)

  • id: openbci-cyton-2014
  • corpus: open
  • form factor: cap
  • creator: Joel Murphy / Conor Russomanno (OpenBCI)
  • disclosure: OpenBCI (Joel Murphy, Conor Russomanno). ‘OpenBCI: An Open Source Brain-Computer Interface For Makers.’ Kickstarter campaign launched 22 January 2014; hardware designs and firmware released open source at github.com/OpenBCI (Cyton board, Ganglion board, Ultracortex Mark IV 3D-printed headset).
  • ip status: open-permissive
  • sensors: sensor-saline-eeg-electrode, sensor-dry-eeg-electrode, sensor-emg, sensor-ecg
  • algorithms: algo-bci-p300, algo-bci-ssvep, algo-bci-motor-imagery
  • prior art notes: An openly-published, openly-licensed wearable biosignal acquisition system: a multi-channel ADS1299-based board, electrodes, and a 3D-printed head-worn frame for EEG/EMG/ECG, with reference firmware and BCI demonstrations. As open-hardware prior art it is unencumbered: any claim reciting a multi-channel head-worn biopotential acquisition device with the features published here (since 2014) reads on OpenBCI. Anchors the open bucket for biosignal wearables; relevant to headband/cap EEG and to EMG/ECG wearable claims.

Muse headband (InteraXon, 2014) — multi-channel dry-electrode EEG headband for meditation and sleep (2014-05)

  • id: muse-headband-2014
  • corpus: private
  • form factor: headband
  • creator: InteraXon Inc.
  • disclosure: InteraXon Inc. ‘Muse’ brain-sensing headband, shipped 2014 — a forehead-band EEG device with frontal (AF7/AF8/Fp1/Fp2-region) and behind-the-ear (TP9/TP10) dry/conductive-rubber electrodes, giving real-time neurofeedback for meditation (and, in ‘Muse S’, sleep tracking).
  • ip status: patented
  • sensors: sensor-dry-eeg-electrode, sensor-eeg
  • algorithms: algo-attention-state, algo-cognitive-workload, algo-sleep-staging
  • prior art notes: Discloses a forehead-band wearable EEG device with frontal and behind-the-ear (TP9/TP10) dry electrodes providing real-time neurofeedback for meditation training and (later) sleep staging. Anticipates EEG-headband claims combining ‘a forehead band’, ‘frontal and mastoid/behind-ear dry electrodes’, and ‘real-time feedback on a meditation or sleep state’ from 2014. Note: its TP9/TP10 around-ear pickup is the same general region used by [[zanetti-aminifar-atienza-eglass-2025]] — relevant prior art for around-ear-EEG wearable claims. Product-side anchor for the headband × EEG cross-cut.

Debener et al. (2015) — cEEGrid: unobtrusive around-the-ear EEG with flexible printed electrodes (2015-11-17)

  • id: debener-2015-ceegrid-around-ear-eeg
  • corpus: academic
  • form factor: patch
  • creator: Stefan Debener / Martin G. Bleichner et al. (Oldenburg)
  • disclosure: Debener S, Emkes R, De Vos M, Bleichner MG. ‘Unobtrusive ambulatory EEG using a smartphone and flexible printed electrodes around the ear.’ Scientific Reports 2015;5:16743.
  • ip status: public-domain
  • sensors: sensor-dry-eeg-electrode, sensor-eeg
  • algorithms: algo-erp-classification, algo-sleep-staging, algo-drowsiness-detection
  • prior art notes: Discloses a flexible, printed, C-shaped electrode array worn around the ear (behind and below the auricle) for unobtrusive ambulatory EEG, recorded to a smartphone-class device. Any wearable claim reciting ‘an array of EEG electrodes arranged around/behind the ear of the wearer’ (the geometry used by EEG glasses, EEG earbuds, and EEG behind-the-ear stickers) reads on Debener et al. 2015. Directly relevant prior art for [[zanetti-aminifar-atienza-eglass-2025]] (which uses temporal/around-ear pickup) and for around-ear-EEG hearable claims; anchor for that cross-cut.

Gao et al. (Javey group) (2016) — fully integrated wearable sensor array for multiplexed in-situ perspiration analysis (2016-01-28)

  • id: gao-javey-2016-wearable-sweat-sensor-array
  • corpus: academic
  • form factor: headband
  • creator: Wei Gao et al. / Ali Javey group (UC Berkeley)
  • disclosure: Gao W, Emaminejad S, Nyein HYY, Challa S, Chen K, Peck A, et al. (Javey A). ‘Fully integrated wearable sensor arrays for multiplexed in situ perspiration analysis.’ Nature 2016;529(7587):509-514.
  • ip status: public-domain
  • sensors: sensor-lactate, sensor-glucose-cgm, sensor-electrolyte, sensor-ph, sensor-skin-temperature, sensor-microfluidic-sweat-collection
  • algorithms: algo-electrolyte-trend, algo-hydration-status
  • prior art notes: Discloses a fully integrated wearable (wristband / headband) with an array of electrochemical sensors measuring multiple sweat analytes simultaneously (glucose, lactate, Na+, K+) plus skin temperature for real-time signal compensation, with on-board signal conditioning, microcontroller, and wireless transmission to a phone — i.e. a complete in-situ sweat biochemistry monitor. Any wearable claim reciting ‘a band-form device with an array of two or more electrochemical sweat-analyte sensors plus a temperature sensor for compensation, with integrated electronics and wireless output’ reads on Gao/Javey 2016. Anchor for the sweat-electrochemical-sensing cross-cuts on the real side; [[bandodkar-wang-2014-wearable-electrochemical-sensors-review]] is the contemporaneous review.

Horizon Zero Dawn — the ‘Focus’ (compact ear/temple-worn AR scanner with object analysis and log playback) (2017-02-28)

  • id: horizon-zero-dawn-focus
  • corpus: fictional
  • form factor: earbud
  • creator: Guerrilla Games / Sony Interactive Entertainment
  • disclosure: Horizon Zero Dawn (Guerrilla Games / Sony, released 28 February 2017); the ‘Focus’ — a small triangular device worn at the temple/ear that provides AR overlays, scans and analyses machines and people in view (highlighting structure, components, and weak points), records and replays holographic/audio ‘datapoint’ logs, and networks with infrastructure.
  • ip status: fictional
  • sensors: sensor-camera-rgb
  • prior art notes: Discloses a compact ear/temple-worn device providing AR overlays, real-time scanning and structural analysis of objects/persons in view, recording and playback of geolocated holographic/audio logs, and networked operation — all in a minimal form factor. Relevant to compact-AR-wearable claims combining ‘an ear- or temple-worn device’, ‘an outward sensor’, ‘on-view object/person analysis with overlay’, and ‘recorded-log capture and playback’. § 103 motivation as of 2017. Cf. [[dragon-ball-z-scouter]], [[metal-gear-solid-sneaking-suit-and-solid-eye]], [[her-samantha-earpiece]].

Black Mirror ‘Crocodile’ — portable memory-extraction device (‘the recaller’) (2017-12-29)

  • id: black-mirror-crocodile-recaller
  • corpus: fictional
  • form factor: headband
  • creator: Charlie Brooker / House of Tomorrow
  • disclosure: Black Mirror, ‘Crocodile’ (Netflix, 29 December 2017); a portable device with a small sensor placed on a person’s temple reads and displays their memories of an event for insurance/forensic corroboration.
  • ip status: fictional
  • sensors: sensor-dry-eeg-electrode
  • prior art notes: Discloses a portable temple-applied sensor that decodes and displays a subject’s recalled visual memory of a target event. Relevant to neural-decoding claims combining ‘a scalp/temple electrode’, ‘evocation of a specific episodic memory’, and ‘reconstruction of a visual representation’. § 103 motivation that portable memory readout was an articulated objective by 2017. Cf. [[strange-days-squid-recorder]] (recording rather than later readout).

Black Mirror ‘Striking Vipers’ — minimal-form temple disc for full-immersion VR (2019-06-05)

  • id: black-mirror-striking-vipers-temple-disc
  • corpus: fictional
  • form factor: headband
  • creator: Charlie Brooker / House of Tomorrow
  • disclosure: Black Mirror, ‘Striking Vipers’ (Netflix, 5 June 2019); a small adhesive disc placed on the temple provides full-sensory, full-immersion virtual reality with another networked user, with no headset.
  • ip status: fictional
  • prior art notes: Discloses a coin-sized temple-mounted device delivering full-sensory, networked, multi-user immersive VR without a headset or goggles. Relevant to minimal-form-factor neural-VR claims combining ‘a small scalp-applied transducer’, ‘bidirectional sensory I/O’, and ‘a networked shared virtual environment’. § 103 motivation that the headset-free VR transducer was an articulated objective by 2019. Cf. [[ready-player-one-haptic-suit]], [[sao-nervegear]].

Public domain (CC0 1.0). The corpus IS the prior art commons.

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