Submitted by the founder, Said Mohaddes Sadeqi, and published as written; only the math markup is typeset. The board's review is published beside it: Design review: the haptic interface engine.

Proposal: Expanding Third Eye Kit (T.E.K.) into an Open-Source Haptic-Tactile Interface Engine

To: Technical Team & Advisory Board From: T.E.K. R&D Lead Subject: Proposal for Expanding T.E.K. Beyond Outdoor Navigation into a Modular Spatial-Haptic Human Input/Output System Website Reference: tek.sadeqi.me

1. Executive Summary & Vision Statement

Currently, human-computer interaction (HCI) relies heavily on visual outputs for spatial awareness. Non-sighted users lack a high-bandwidth, non-auditory input channel to perceive 2D/3D spaces in real time. Screen readers overload auditory awareness, which visually impaired individuals depend on for environmental safety.

We propose expanding Third Eye Kit (T.E.K.) from a spatial navigation tool into a generalized, open-source tactile sensory transducer. By converting visual, spatial, and vector data (from real-world cameras or digital game engines) into a soft wearable haptic array, T.E.K. will allow users to "feel" spatial boundaries, vectors, doors, obstacles, and surfaces.

2. Core Wearable Design & Ergonomics

Soft Bandage Form Factor: A flexible, comfortable wrapper designed to be worn around high-surface-area areas like the back, chest, or thigh, allowing gentle, non-intrusive feedback.
Grid Resolution (4 × 4 or 5 × 5 Array): Utilizing 16 to 25 tactile nodes spread across a 15 × 15 cm footprint to match the human skin's two-point discrimination threshold (~30 to 40 mm on the back/torso).
Sensory Fatigue Mitigation:
- Dynamic pulse modulation (short micro-bursts of 50 to 100 ms) instead of static, continuous vibration to prevent mechanoreceptor numbness.
- Transitioning from standard ERM motors to Linear Resonant Actuators (LRAs) for instant response, silent operation, and subtle intensity scaling.
- Recommended daily usage/training limit of ~2 hours based on telemetry feedback collected via the mobile app.

3. Technical Architecture & Latency Targets

The mobile device acts as the core processing engine ("the mind"), processing frames and firing compact spatial packets over Bluetooth Low Energy (BLE) or USB-C.

┌───────────────────────────┐
│ Input Source              │
│ (Game Frames / Camera)    │
└─────────────┬─────────────┘
              │
              ▼
┌───────────────────────────┐
│ Smartphone App            │
│ (Edge/Vector Extraction)  │
└─────────────┬─────────────┘
              │ BLE 5.3 (<7 ms)
              ▼
┌───────────────────────────┐
│ T.E.K. Haptic Bandage     │
│ (16/25 Motor LRA Grid)    │
└───────────────────────────┘

End-to-End Latency Target: < 35 ms
- Frame Capture & Downsampling: ~10 ms (low-res depth/edge buffer, e.g., 64 × 64)
- Ego-Centric Vector Engine: ~8 ms (maps 360° environment into grid directional cues)
- BLE Transmission: ~5 ms (low-overhead 16-byte array packet)
- Actuator Activation: ~3 ms (instant LRA response)

4. Game Engine Integration ("Spatial Flight Simulator")

Before navigating complex physical spaces, users will build tactile spatial memory in virtual environments (e.g., open-world sandboxes like GTA, MineTest, or custom Unity/Unreal mods).

Ego-Centric Spatial Mapping: Instead of rendering full visual frames, T.E.K. translates relative spatial vectors, directional arrows, door locations, approaching boundaries, and surface changes.
Virtual-to-Real Training Pipeline: Operating in a game engine acts as a safe, low-risk training ground to learn tactile gestures and refine personal sensitivity profiles before outdoor deployment.

5. Open-Source Ecosystem & Modularity

T.E.K.-Link API: An open, lightweight SDK enabling developers to stream spatial matrix data to T.E.K. from any application (game engine, screen translator, or navigation software).
Custom Remapping Interface: A web and mobile portal allowing users to customize grid size, vibration intensity curves, spatial scaling, and placement modes.

6. Action Items Requested from the Board

Approval for Web Integration: Publish this expansion roadmap on tek.sadeqi.me.
Hardware Prototype Authorization: Allocate resources to build a 16-node LRA prototype bandage driven by BLE 5.3.
SDK Development: Authorize initial development of the open-source screen-translation/game-vector module.