Storage Device Automatic USB-DAC Format Conversion
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Solution Overview
Problem
Users face cumbersome manual settings when connecting a USB-DAC to a storage device, as they need to determine the music data format the USB-DAC can reproduce, which is time-consuming and not applicable to USB-DACs lacking format recognition functionality.
Innovation Solution
A storage device with a table associating external reproducing device IDs with reproducible data formats, notifying necessary reproduction information and converting content data into formats compatible with the connected USB-DAC, allowing automatic output in a format the device can process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage device requires manual setting of USB-DAC format compatibility, then the user can ensure proper format matching, but the operation becomes cumbersome and time-consuming
Solution Approach 1:
The storage device automatically detects the USB-DAC's format compatibility information and performs format conversion without requiring manual user input. The system serves itself by autonomously querying the USB-DAC's capabilities through the USB interface and selecting the appropriate conversion strategy.
Solution Approach 2:
The storage device performs format conversion in advance before outputting the music data to the USB-DAC. By detecting the USB-DAC's format compatibility information beforehand and pre-converting the stored music data to the appropriate format, the system ensures proper format matching without requiring manual user configuration.
2Adaptability or versatility
If the storage device supports multiple music data formats (DSD, DoP, PCM), then the adaptability to different USB-DACs improves, but the device complexity increases
Solution Approach 1:
The storage device incorporates multiple music data format support (DSD, DoP, PCM) within a single device, enabling it to work with various types of USB-DACs. The USB interface and processing unit are designed to handle multiple formats universally, allowing the same device to serve different format requirements.
Solution Approach 2:
The storage device changes its output format parameters based on the detected USB-DAC capabilities. By dynamically adjusting the music data format (converting between DSD, DoP, and PCM) according to the USB-DAC's supported formats, the system achieves high adaptability without requiring multiple separate devices.
3Ease of operation
If the storage device automatically detects USB-DAC format capability, then the ease of operation improves, but the need for format conversion processing increases
Solution Approach 1:
The storage device performs format conversion in advance before outputting the music data to the USB-DAC. By detecting the USB-DAC's format compatibility information beforehand and pre-converting the stored music data to the appropriate format, the system ensures proper format matching without requiring manual user configuration.
Solution Approach 2:
The USB interface acts as an intermediary between the storage device and the USB-DAC, enabling automatic exchange of format compatibility information. Through this intermediary communication channel, the storage device queries the USB-DAC's supported formats and receives feedback, allowing automatic format selection without user involvement.
Data Source
AI summary
A storage device includes a storage retaining content data, an input receiving instructions to reproduce the content data stored in the storage and a reproducer outputting the content data to an external reproducing device. The storage retains a table including identification information of the external reproducing device and a data format of the content data reproducible in the external reproducing device. The reproducer includes a notifier notifying reproduction information necessary for the external reproducing device to reproduce the content data before the content data are outputted to the external reproducing device in response to a reproduction instruction, and a data controller acquiring unique identification information for the external reproducing device when the external reproducing device is connected to the storage device and converting the content data into the data format reproducible in the external reproducing device and outputting the content data thereto.