Vehicular Audio Visual System Location-Aware Media Selection
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Solution Overview
Problem
Vehicular audio/visual systems face usability issues due to the need to switch between multiple types of broadcasting media, as they often display receivable broadcast areas without distinguishing between areas where specific types of broadcasting are available or unavailable, leading to potential silent modes when users select unreceivable media.
Innovation Solution
A vehicular audio/visual system that includes a positional information detecting unit, a receiving area storage unit, and an output mode switching unit to determine if a vehicle is within a receivable area, prohibiting the selection of output modes for unreceivable media, thus preventing silent modes and improving usability by only displaying and allowing access to receivable media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the receiving device displays all types of broadcasting media (analog/digital TV, radio, satellite), then the system provides comprehensive media selection capability, but the user must switch between multiple display screens which deteriorates usability
Solution Approach 1:
The patent segments the display interface by creating separate display screens for different broadcasting types (terrestrial, satellite, etc.). Each screen shows only the broadcasting types available in the current reception area, eliminating the need for users to navigate through unavailable options and improving usability while maintaining comprehensive media selection capability through multiple specialized screens.
Solution Approach 2:
The patent implements dynamic switching of display screens based on the user's current location and the broadcasting types available in that area. The system automatically determines which broadcasting types can be received and displays only those options, making the interface adaptive to the user's environment and eliminating static display of unavailable broadcasting types.
2Adaptability or versatility
If the receiving device allows selection of any broadcasting type, then the system provides full media access capability, but the device may become silent when users select unreceivable broadcasting types
Solution Approach 1:
The patent performs preliminary determination of receivable broadcasting types based on the user's current location before allowing selection. The system uses positional information to pre-identify which broadcasting types can be received in the current area, and only displays and allows selection of those broadcasting types, preventing the device from becoming silent due to selection of unreceivable content.
3Loss of information
If the receiving device displays broadcast area information, then the system provides location-aware broadcasting selection, but multiple display screens are required for different media types which complicates the interface
Solution Approach 1:
The patent applies local quality by customizing the display content according to the specific broadcasting types available in the current reception area. Each display screen is tailored to show only the broadcasting types that can be received locally, providing location-aware broadcasting selection while maintaining a simple interface by avoiding the display of unavailable broadcasting types.
Data Source
AI summary
A vehicular audio/visual system that receives a transmitted electric wave of video or sound, and that outputs the electric wave by switching to an output mode corresponding to user's instruction from among output modes corresponding to multiple types of media includes: a positional information detecting unit that detects positional information of a vehicle; a receiving area storage unit that stores at least one of an area in which the electric wave can be received and an area in which it is difficult to receive the electric wave; a receiving area determination unit that refers to the receiving area storage unit on the basis of the detected positional information and determines whether the electric wave can be received; an output mode switching unit that prohibits an output mode that outputs the electric wave as video or music from being entered when it is determined that the electric wave cannot be received.