Vehicle Hands-Free System Server Data Sync

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Solution Overview

Problem

Existing vehicle-mounted systems for hands-free calls rely on establishing a communication line with a cell phone, but fail to acquire call origination and reception history data if the connection is lost, limiting user convenience.

Innovation Solution

A vehicle-mounted system that includes a first communication interface for near field communication with a wireless apparatus and a second communication interface connecting to a network, allowing data synchronization with a server to retrieve call history data even when the cell phone connection is lost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the vehicle-mounted apparatus relies on direct communication with the cell phone for call history data, then data acquisition is simple and direct, but the system fails to acquire call origination and reception history data when the communication line is lost

Engineering Contradiction:

Improvedata acquisition reliabilityVSAvoidcommunication system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a server as an intermediary component between the vehicle-mounted apparatus and the cell phone. The server stores call history data and facilitates data transfer when the direct communication line is unavailable, thereby improving data acquisition reliability without significantly increasing system complexity

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary actions by having the cell phone automatically transfer call origination history data, call reception history data, and telephone directory data to the vehicle-mounted apparatus when a communication line is established. This ensures data is available in advance for when the communication line may be lost

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If the cell phone automatically transfers call history data to the vehicle-mounted apparatus, then user convenience is improved, but the system cannot acquire data if the communication line cannot be established

Engineering Contradiction:

Improveuser convenienceVSAvoiddata acquisition adaptability

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The server acts as a mediator that enables data acquisition through alternative paths. When the direct cell phone to vehicle-mounted apparatus communication fails, the system can still acquire call history data through the server, thereby improving adaptability while maintaining ease of operation

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The vehicle-mounted apparatus is designed with multi-functionality to acquire call history data through multiple sources: directly from the cell phone when communication is available, and from the server when direct communication is unavailable. This universal approach ensures data availability across different scenarios

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11800003B2Vehicle-mounted system capable of making hands-free call

Publication Date: 2023.10.24 PANASONIC AUTOMOTIVE SYST CO LTD

AI summary

A first communication interface communicates with a wireless apparatus to communicate an audio signal for a hands-free call by connecting to the wireless apparatus and receives first data stored in the wireless apparatus from the wireless apparatus. A storage stores the first data received by the first communication interface. A second communication interface communicates, via a communication apparatus, with a server connected to a network. The second communication interface performs communication to synchronize second data that is stored in the server and that is backup data of the first data with the first data stored in the storage.