Automotive Multimedia Internet Access via Data-Only Channel
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Solution Overview
Problem
Current multimedia devices in automotive vehicles incur costs for Internet access through mobile phone data transmission via PAN or DUN networks when accessing websites, making it undesirable for users.
Innovation Solution
A system with a mobile phone equipped with a wireless transceiver and a data-only channel, such as a Serial Port Profile (SPP) Bluetooth transceiver, allows direct data transmission between the mobile phone and multimedia device, enabling Internet access without using cost-based networks by processing and displaying websites using applications on both devices, which store and validate user personal information for identity verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Internet access is achieved through mobile phone data transmission via PAN or DUN networks, then the multimedia device can access websites, but the user incurs data transmission charges
Solution Approach 1:
The patent segments the data transmission process into two distinct phases: (1) the mobile phone accesses the Internet and retrieves website data through its data channel, and (2) the multimedia device receives and displays the pre-fetched website data locally. This segmentation allows the expensive data transmission to occur only once on the mobile phone side, while subsequent access on the multimedia device is free.
Solution Approach 2:
The mobile phone application performs preliminary action by accessing the Internet and downloading website data before the user actually needs to view it on the multimedia device. The website data is pre-fetched and cached on the mobile phone, so when the user selects a website on the multimedia device, the data is already available for immediate display without requiring real-time data transmission.
2Loss of energy
If a data-only channel is used for direct data transmission between mobile phone and multimedia device, then cost-free Internet access is enabled, but the system complexity increases
Solution Approach 1:
The patent introduces a data processor as an intermediary component that facilitates communication between the mobile phone and the multimedia device through the data-only channel. The data processor handles tasks such as data formatting, transmission control, and protocol management, thereby simplifying the overall system architecture despite the added component.
Solution Approach 2:
The mobile phone's wireless transceiver is configured to support multiple functions: it serves as both the Internet access point (using its data channel) and the communication bridge to the multimedia device (using the data-only channel). This multi-functionality reduces the need for separate dedicated hardware components, thereby limiting the increase in system complexity.
Data Source
AI summary
A system for accessing the Internet from an automotive vehicle having a multimedia device is provided. The system includes a mobile phone equipped with a wireless transceiver. The wireless transceiver has a data-only channel operable to transmit data between the mobile phone and the multimedia device. A first application is disposed within the mobile phone. The first application is operable to access an Internet website. A data processor is operable to transmit the Internet website to the multimedia device in data form through the data-only channel. A second application is disposed within the multimedia device and is operable to process the data received through the data-only channel so as to display the website onto the multimedia device.