Portable Terminal State Transfer for Seamless In-Vehicle Content Continuity

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Solution Overview

Problem

Existing short-range communication systems between portable communication terminals and in-vehicle apparatuses require users to reboot applications and reacquire content when the connection is disrupted, such as when a user leaves a vehicle, leading to inconvenience, especially for continuous content execution like Internet radio and music delivery.

Innovation Solution

Incorporating a notification device in both the portable communication terminal and the in-vehicle apparatus to transmit and receive application execution states, allowing seamless continuation of content execution across the connection release and reestablishment, enabling users to maintain content playback without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the connection between portable communication terminal and in-vehicle apparatus is released during content execution, then power consumption is reduced and device mobility is improved, but content execution must be restarted requiring user intervention

Engineering Contradiction:

Improvepower consumptionVSAvoiduser convenience

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The in-vehicle apparatus transmits the application execution state to the portable communication terminal before connection release occurs. This preliminary action ensures that when connection is restored, the content execution state is already available and can be immediately resumed without requiring user intervention or manual restart.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the in-vehicle apparatus notifies the portable communication terminal of the application execution state before connection release. This feedback loop allows the portable terminal to preserve and restore the execution state, maintaining content continuity while allowing connection flexibility.

Inventive Principle:

Principle #23Feedback

2Duration of action of stationary object

If content execution state is maintained in in-vehicle apparatus during connection release, then content execution continuity is improved, but data loss risk increases when connection is released

Engineering Contradiction:

Improvecontent execution continuityVSAvoidexecution state data

Core Design Contradiction:

Duration of action of stationary objectVSLoss of information

Solution Approach 1:

The portable communication terminal acts as an intermediary that receives and stores the application execution state from the in-vehicle apparatus before connection release. This intermediary mechanism protects the execution state data from being lost when connection is released, as the portable terminal preserves it and can restore it when needed.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The in-vehicle apparatus performs the preliminary action of transmitting the application execution state to the portable communication terminal before connection release. This ensures that no execution state data is lost during connection disruption, as the state is already copied and preserved in the portable terminal.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If application execution state is transmitted before connection release, then content resumption convenience is improved, but communication overhead increases

Engineering Contradiction:

Improvecontent resumption convenienceVSAvoidcommunication protocol complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system performs the transmission of application execution state as a preliminary action before connection release occurs. By doing this in advance, the portable communication terminal already has the necessary state information stored, so when connection is restored, content can be immediately resumed without additional communication overhead or complex protocols.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8867997B2Short-range communication system, in-vehicle apparatus, and portable communication terminal

Publication Date: 2014.10.21 DENSO CORP

AI summary

A short-range communication system includes a portable communication terminal and an in-vehicle apparatus communicatively connected to the portable communication terminal. When connection is established between the portable communication terminal and the in-vehicle apparatus, a content is executed in the in-vehicle apparatus. When the connection therebetween is released while the content is being executed in the in-vehicle apparatus, the portable communication terminal executes the content by taking over an application execution state of the in-vehicle apparatus which is transmitted from the in-vehicle apparatus.