Virtual Presence Handoff Across Moving Trajectories

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Solution Overview

Problem

Conventional display devices lack the capability to project virtual presences as a default, forcing users to remain in one location while using applications that utilize holographic projections, such as navigation or gaming, which can be impractical and disrupts the continuity of the immersive experience when the user moves.

Innovation Solution

The system identifies devices along a user's moving trajectory that are registered to lend resources for projecting virtual presences, allowing a seamless 'handoff' of the virtual presence from one device to another as the user moves, ensuring continuous availability and adjusting for environmental changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional display devices are used, then users can view virtual presences, but users must remain in one location which disrupts continuity when moving

Engineering Contradiction:

Improveuser mobilityVSAvoidvirtual presence continuity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system divides the service area into multiple zones with distributed projection devices. As the user moves from one zone to another, the virtual presence is seamlessly handed off between devices, enabling continuous experience during mobility

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A centralized server acts as an intermediary to coordinate multiple projection devices along the user's trajectory. The server manages handoffs between devices, ensuring continuous virtual presence availability as users move through different locations

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a single device projects virtual presence, then the system is simple, but the virtual presence becomes unavailable when the user moves out of range

Engineering Contradiction:

Improvevirtual presence availabilityVSAvoidsystem architecture

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple projection devices are registered with the service to lend their resources to subscribers. Each device can serve multiple users and the system dynamically assigns devices based on user location, creating a universal service network

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system pre-identifies devices along the user's expected trajectory and prepares them to project virtual presences. This advance preparation ensures seamless handoffs without interruption when the user moves between locations

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables a continuous and immersive virtual presence experience for users moving between locations without interruptions, enhancing usability in applications like navigation, medical tracking, and video conferencing by borrowing resources from devices along the user's path.

Implementation Method 1

obtaining location data associated with the subscriber, computing a moving trajectory of the subscriber from the first location to a second location

Methodology Applied

Scientific EffectGPS location tracking:

Implementation Method 2

controlling a first device in a first location to project a virtual presence in a current field of view of a subscriber

Methodology Applied

Scientific EffectHolographic projection:

Implementation Method 3

controlling the second device to project the virtual presence in the current field of view of the subscriber when the subscriber is no longer within range of the first device but is within range of the second device

Methodology Applied

Scientific EffectHolographic projection:

Data Source

PatentUS11423623B2Projecting virtual presences along a moving trajectory

Publication Date: 2022.08.23 AT&T INTELLECTUAL PROPERTY I L P

AI summary

In one example, a method performed by a processing system includes controlling a first device in a first location to project a virtual presences in a current field of view of a subscriber of a virtual presence projection service, computing a moving trajectory of the subscriber from the first location to a second location, identifying a second device that is located along the moving trajectory, wherein the second device includes a second set of resources for projecting virtual presences, and wherein the second device is registered with the virtual presence projection service to lend the second set of resources to subscribers of the virtual presence projection service, and controlling the second device to project the virtual presence in the current field of view of the subscriber when the subscriber is no longer within range of the first device but is within range of the second device.