Playback Setup via Smartphone When the HDMI Display Is Off
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Solution Overview
Problem
Existing reproduction devices require initial settings to be performed using a display device, which can be inconvenient if the display device is not powered on or unavailable.
Innovation Solution
A reproduction device that can perform initial settings using a connected terminal device, such as a smartphone, via near-field communication, allowing settings to be done without a display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large number of pieces of information are displayed on the display unit, then the user can access more content, but the interface becomes cluttered and difficult to operate
Solution Approach 1:
The interface is divided into multiple pages, with each page displaying a limited set of information. Users can navigate between pages to access additional content. This segmentation prevents information overload on any single screen while maintaining comprehensive accessibility across the system.
Solution Approach 2:
The patent introduces temporal navigation through past and future buttons that allow users to move between different time points in the playback queue. This adds a time dimension to the interface, enabling users to access information across multiple temporal contexts without cluttering the current display.
2Adaptability or versatility
If the playback position is changed frequently, then the user can access different content, but the current playback context is lost
Solution Approach 1:
The system pre-calculates and displays future playback positions in the queue before the user actually navigates to them. This allows users to preview upcoming content and make informed decisions about navigation, maintaining context stability while enabling versatile access to different content.
Solution Approach 2:
The interface provides visual feedback showing the current playback position relative to the queue, displaying information about past and future playback positions. This feedback mechanism helps users maintain awareness of their location in the playback sequence, preserving context stability while enabling navigation.
3Ease of operation
If detailed information about past and future playback positions is displayed, then the user has better navigation control, but the interface becomes complex and hard to understand
Solution Approach 1:
Different sections of the interface display different types of information with different levels of detail. The current playback position receives prominent display, while past and future positions are shown with progressively less detail. This local differentiation provides navigation control where needed without overwhelming the user with complexity everywhere.
Solution Approach 2:
The system displays only the most relevant playback positions (current, immediate past, and immediate future) rather than showing complete detailed information about all positions in the queue. This partial display provides sufficient navigation control while keeping the interface simple and understandable.
Data Source
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AI summary
A reproduction device (4) includes: an HDMI transmitter (38) that detects a power state of a display device (6); a first communication module (28) that establishes communication with a terminal device (8) that is externally located, when the HDMI transmitter (38) does not detect that the display device (6) is in a power-on state; and a controller (36) that performs first settings with the terminal device (8), when the communication is established between the terminal device (8) and the first communication module (28), the first settings being settings relating to the reproduction device (4).