AV Receiver Sound Field Mode Selection via Segmented Menu
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Solution Overview
Problem
Users of AV receivers face confusion and complexity in selecting the appropriate signal processing modes for optimal sound fields, leading to inferior listening experiences due to the need for complicated operations and unclear differences between various modes.
Innovation Solution
A contents reproduction apparatus that allows users to select sound field modes via a sound field table, displaying activity, device, and content menus, enabling simple selection of desired sound field options and adaptive processing based on the type of content, thereby simplifying the operation and ensuring optimal sound field settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If AV receivers install multiple signal processing modes to suit different content types and user preferences, then the adaptability and versatility of the device is improved, but the device complexity and operational difficulty increase
Solution Approach 1:
The patent segments the signal processing modes into distinct categories: content-type-based modes (for different content formats) and sound-field-based modes (for different listening environments). This segmentation allows users to select modes based on their specific needs without being overwhelmed by a single large list of options, thereby maintaining versatility while reducing perceived complexity.
Solution Approach 2:
The patent introduces a hierarchical dimension to the mode selection interface. Instead of presenting all modes in a single flat list, it creates multiple selection dimensions: first selecting content type, then selecting sound field type. This dimensional approach organizes the numerous modes into a structured framework that is easier to navigate while preserving the full range of processing options.
2Loss of information
If AV receivers provide detailed explanations of signal processing modes to help users understand differences, then the information completeness is improved, but the ease of operation deteriorates due to complicated presentations
Solution Approach 1:
The patent extracts the essential selection criteria from detailed technical explanations. Instead of presenting comprehensive technical descriptions of each mode's signal processing characteristics, it extracts and presents only the key differentiating factors: content type and sound field type. This extraction provides sufficient information for users to make informed selections without overwhelming them with technical details.
Solution Approach 2:
The patent performs preliminary classification of signal processing modes into content-type-based categories and sound-field-based categories before presenting them to users. This preliminary organization allows users to quickly identify the relevant category for their current situation and select appropriate modes without needing to understand the technical differences between all available modes, thus simplifying the selection process while maintaining information adequacy.
Data Source
AI summary
A contents reproduction apparatus (e.g. an AV receiver) is connectable to various sources (e.g. audio/video devices) having audio/video contents which are related to predetermined activities (e.g. Listen, Watch, Play) and predetermined sound field options (e.g. Music, Movie, Entertainment) via a sound field table describing a plurality of sound field modes. The contents reproduction apparatus allows the user to arbitrarily select the source, the activity, and the sound field option, thus determining a desired sound field mode via the sound field table. The desired sound field mode is adopted in the signal processing performed on the output signals (e.g. audio signals) of the selected source. Thus, the user is able to select the optimum sound field mode from among various sound field modes with a simple operation without needing to carry out troublesome and complicated operations.