Reproducing Device Dual Output Sections Remote Control
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Solution Overview
Problem
Conventional reproducing devices used by DJs cannot simultaneously reproduce data from external storage media, such as USB devices, and transferring data from internal storage to another device introduces significant operability issues during real-time playback, like fast-forwarding, due to transfer waiting times.
Innovation Solution
A reproducing device with a central processing unit, digital signal processor, and dual output sections that allows simultaneous reproduction and remote control of digital audio files from internal and external storage media, enabling separate and synchronized audio outputs to multiple systems without data transfer, thus maintaining user operability and reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data is transferred from internal storage to another reproducing device, then data sharing between devices is enabled, but transfer waiting time increases and user operability deteriorates
Solution Approach 1:
The system divides the data access function into two parts: the storage medium remains in one device while a second reproducing device can access and control the stored files remotely. This segmentation allows data sharing without physical transfer, eliminating transfer waiting time while maintaining full operability on the remote device.
Solution Approach 2:
A communication interface acts as an intermediary between the storage device and remote reproducing device, enabling direct access to stored files without data transfer. The intermediary transmits control signals and audio data in real-time, eliminating the need for physical data movement while maintaining user operability.
2Adaptability or versatility
If a special USB controller is used to enable simultaneous reproduction, then data can be reproduced simultaneously across multiple devices, but production costs increase
Solution Approach 1:
The system uses standard, universal USB interfaces that are already built into conventional reproducing devices. By making the interface multi-functional to handle both data transfer and simultaneous reproduction control, the invention eliminates the need for expensive special controllers while achieving the same capability.
Solution Approach 2:
The reproducing device with built-in storage automatically manages data access and can be remotely controlled by another device without requiring additional specialized hardware. The system serves itself by using its existing USB interface for both local and remote operations, eliminating the need for extra controllers.
3Speed
If data is accumulated in advance for fast-forward reproduction, then real-time playback is enabled, but transfer waiting time reduces operability
Solution Approach 1:
The system prepares audio data for remote playback in advance by maintaining a buffer in the storage device itself. When remote playback is requested, the data is already prepared and can be transmitted immediately without transfer waiting time, enabling real-time playback speed while eliminating the operability penalty.
Data Source
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AI summary
A reproducing device (10) is provided with a reproducing section (14) for reproducing a file stored in a storage medium (30); a memory (16) for temporarily storing data of the file to be reproduced by the reproducing section (14); an operating section (26) for receiving operation input from a user; a main output section (20) for outputting data read out from the memory (16) based on the operation input received by the operating section (26); a control interface section (28) for receiving a control signal transmitted from external; and a sub-output section (22) for outputting the data read out from the memory (16) based on the control signal received by the control interface section (28).