US 5,495,576 · Granted 1996-02-27

The 1996 Patent That Dreamed Up Full-Surround Virtual Reality

Imagine putting on a headset that shows a 360-degree 3D world all around you—not just in front of you. This patent describes how cameras, radar sensors, and microphones can capture everything happening around a subject from every angle at once, then a computer stitches it all together into an immersive virtual reality experience you can interact with in real time.

Curated and verified by the IsItPatented Editorial team

The plain-English version

What it protects

The claim covers a system architecture that combines panoramic image capture (using multiple synchronized cameras, radar, and acoustic sensors) with real-time 3D model processing and surround-sound output delivered via head-mounted displays or room-sized display arrays. What's protected here is the specific method of integrating multi-directional sensor input, computationally rendering a 360-degree virtual model, and allowing a user to interact with that model while experiencing it from all angles simultaneously—whether through a headset or a pod of screens surrounding the participant.

Why it matters

This patent staked an early claim on immersive, full-surround virtual reality architecture during the formative years of VR research. Filed in 1993 and granted in 1996, it anticipated key concepts now central to modern VR and telepresence: head-tracked panoramic displays, real-time 3D environment rendering, and multi-sensory integration. While mainstream VR adoption came decades later, this patent represents foundational thinking about how to capture and present an entire 360-degree environment rather than a flat screen—an idea that became core to consumer headsets and professional telepresence systems.

Real-world use

When you put on a modern VR headset like Meta Quest or PlayStation VR and look around to see the full environment in every direction, you're experiencing an evolution of the surround-capture and surround-display concept this patent protected.

Original USPTO abstract

An improved panoramic image based virtual reality/telepresence audio-visual system and method includes panoramic three-dimensional input devices, a computer processor, and a panoramic audio-visual output device. In one embodiment of the system the input devices comprise a sensor assembly including a plurality of positionable radar, camera, and acoustical sensors for recording signatures of all sides of three-dimensional subjects simultaneously. The computer processor integrates the sensor signals, processes signals as a virtual model, updates the model based on participant interaction, and selects and distributes portions of the processed virtual model for presentation on display units and audio speakers. The processor includes participant interactive input devices for instantaneous interaction with the virtual model. The panoramic audio-visual output device includes a head-mounted display or a closed structure having contiguous individual display units mounted in all viewable directions surrounding the participant. Conventional, stereoscopic, autostereoscopic, and holographic display systems are provided to view the panoramic three-dimensional image based model. Computer graphics, artificial intelligence, telecommunications, and vehicle control embodiments of the system are provided.

Patent details

Publication number: US 5,495,576
Filing date: 1993-01-11
Grant date: 1996-02-27
Assignee: Ritchey; Kurtis J.
Inventor(s): RITCHEY; KURTIS J.
CPC class: G06T17/00

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