Wireless Session Continuity for Detachable Hybrid Computing Devices

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Solution Overview

Problem

Current hybrid computing devices fail to maintain user sessions seamlessly when transitioning between laptop and tablet modes, often requiring users to restart applications and lose continuity due to differences in operating systems and hardware capabilities.

Innovation Solution

A computer system that maintains user sessions by establishing a wireless data connection between a base processing device and a display device, allowing the display device to function as a tablet while the base device continues running applications, and vice versa, using Remote Graphics Software (RGS) for seamless transition and operation across different form factors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display device is mechanically disconnected from the base processing device, then the display device can be used as a standalone tablet, but the user session cannot be maintained continuously

Engineering Contradiction:
Improveform factor flexibilityVSAvoiduser session continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a wireless communication intermediary (Wi-Fi, Bluetooth, or other wireless protocols) that mediates between the base processing device and the display device when mechanically disconnected. This intermediary enables continuous data transmission and user session maintenance without requiring a physical connection, thus resolving the contradiction between form factor flexibility and session continuity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically switches between mechanical connection mode and wireless connection mode based on the physical state of the devices. When the display device is detached, the system automatically transitions to wireless communication to maintain the user session, making the connection method adaptive rather than static. This dynamic behavior allows the system to maintain reliability across different form factors.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the base processing device and display device operate on different operating systems, then each device can be optimized for its specific use case, but applications and data cannot be accessed across devices

Engineering Contradiction:
Improvedevice optimizationVSAvoidapplication and data accessibility
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent implements a universal session management layer that works across different operating systems (Windows on the base device, mobile OS on the display device). This layer provides multi-functional capability by enabling application continuity, file access, and communication protocols that work regardless of the underlying OS differences, thus preventing information loss while maintaining device-specific optimizations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent replaces the mechanical assumption of a unified operating system with a software-based communication protocol layer. Instead of relying on a shared OS to maintain session continuity, the system uses protocol-based communication (Remote Graphics Software, data synchronization protocols) that works across different operating systems, eliminating the need for OS uniformity while maintaining information accessibility.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the display device is mechanically connected to the base processing device, then the user session can be maintained, but the display device cannot be used as a standalone tablet

Engineering Contradiction:
Improveuser session continuityVSAvoidstandalone operation capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The connection mode is made dynamic rather than static. The system automatically detects whether the display device is mechanically connected or disconnected and adjusts the communication method accordingly - using mechanical connection protocols when attached and wireless protocols when detached. This dynamic adaptation allows the display device to function as a standalone tablet while maintaining user session continuity through appropriate protocol switching.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A wireless communication intermediary serves as a bridge between the mechanically disconnected devices. This intermediary layer (wireless network, Bluetooth connection) allows the display device to operate independently while maintaining the user session, thus enabling standalone functionality without sacrificing session continuity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the tablet portion is detached from the laptop, then the tablet can be used independently, but applications running on the laptop become inaccessible on the tablet

Engineering Contradiction:
Improveindependent device operationVSAvoidapplication accessibility
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent ensures continuous application execution on the base processing device while the display device is detached. The application state is maintained and continuously updated through wireless communication, allowing users to access and interact with the same applications on the tablet as if it were still connected mechanically. This continuity of useful action prevents information loss while enabling independent device operation.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system creates a replicated view of the application state and data on the display device through wireless communication. Rather than requiring direct mechanical connection, the tablet receives and displays copies of the application interface and data, enabling access to laptop applications on the detached tablet while maintaining the original application execution on the base device.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3230877B1System and method to continuously maintain a user session when a display device is mechanically connected and disconnected
Publication Date: 2022.03.30 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • EP3230877B1 patent drawingFigure 1
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AI summary

A computer system to continuously maintain a user session when a display device is mechanically connected and disconnected with a base processing device is described. The computer system allows the user to run applications during the user session on the base processing device and use the display device as a monitor. The display device can be detached from the base processing device, and the base processing device can continue running the applications for the user session. In this mode, the separated display device can be used as a tablet form factor computing device which can accept user input and send the user input to the base processing device. Among other functions, the base processing device can operate with the display device disconnected by generating session content for the display device, including, for example, sending application content, video streams, and other content to the display device.