# BCI Human Interface Device **Entity class:** Technology, method, or technical system **Type:** Interface protocol **Collection:** [[collections/Neurotech|Neurotech]] **Primary source:** [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] ## Definition BCI-HID is the Apple device-input protocol described as making brain-computer interfaces a native accessibility input category. ## Relationships [[wiki/BCI Human Interface Device|BCI-HID]] is related to [[wiki/Synchron|Synchron]], [[wiki/Apple|Apple]], [[wiki/Stentrode|Stentrode]], and operating-system accessibility. <!-- BEGIN HUMANIZED RELATIONSHIPS 2026-09-11 --> This entry is routed through [[collections/Neurotech|Neurotech]]. Its source context is developed in [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]], [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]], [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]], and [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]]. Status-qualified source edges are preserved in the terminal Research Edges section. ### Additional Documented Relationships - [[wiki/BCI Operating-System Substrate|BCI Operating-System Substrate]] is bridged through **BCI Human Interface Device**. Treat OS/API layer as its own wiki entry. not a Synchron footnote. <!-- END HUMANIZED RELATIONSHIPS 2026-09-11 --> ## Source route [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] · [[collections/Neurotech|Neurotech]] ## Neurotech source route **Collection:** [[collections/Neurotech|Neurotech]] **Source article:** [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] ## Related Work in the Corpus <!-- BEGIN HUMANIZED CORPUS ROUTES 2026-09-11 --> - In [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]], **VII.9 — Operating-System Integration and the BCI HID Layer** provides the narrative context for **BCI Human Interface Device**: The decisive infrastructural transition of 2025 was Apple's announcement of the BCI HID (Brain-Computer Interface Human Interface Device) protocol — a native operating-system specification for accepting input from brain-computer… - In [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]], **Synchron: The Minimally Invasive Counter-Geometry** provides the narrative context for **BCI Human Interface Device**: In November 2025, Synchron raised \$200 million in Series D funding led by Double Point Ventures (co-founder and managing partner Campbell Murray, MD), accelerating pivotal trials and commercial launch preparations. <!-- END HUMANIZED CORPUS ROUTES 2026-09-11 --> ## Research Edges <!-- BEGIN NEUROTECH RELATIONSHIP GRAPH 2026-09-10 --> #### Master relationship graph patch — 2026-09-10 **Collection:** [[collections/Neurotech|Neurotech]] **Relationship source:** [[research/Neurotechnology Ecosystem Relationship Graph - 2026-09-10|Neurotechnology Ecosystem Relationship Graph — 2026-09-10]] **Related source articles:** [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]] · [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] · [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] #### Incoming typed edges - **Edge 413 — [[wiki/BCI Operating-System Substrate|operating-system BCI integration]] `bridge_entities` → this entry** — **CORPUS**; evidence `CORPUS_BCI`, `CORPUS_ATLAS`. Treat OS/API layer as its own wiki entry, not a Synchron footnote. <!-- END NEUROTECH RELATIONSHIP GRAPH 2026-09-10 --> ## Research Inferences <!-- BEGIN RESEARCH INFERENCES 2026-09-11 --> These entries translate the forward-looking register in [[research/Research Inferences|Research Inferences]] into ordinary wiki prose. The tier labels apply to the inference, not automatically to every factual anchor inside it. The interpretive frame comes from [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]] and [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]]. Collection route: [[collections/Neurotech|Neurotech]]. - **INF-0076 — Established.** Apple's BCI HID protocol makes neural signal a native input class alongside touch and voice, which moves the interface question from the implant vendor to the operating-system vendor. Every application on the platform becomes addressable by thought without any application being rewritten. <!-- END RESEARCH INFERENCES 2026-09-11 -->