Pedal-Headphone Link Control for Multi-Device Wireless Operation
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Solution Overview
Problem
Existing headphones can only be controlled by a single control device, limiting the ability to control them from multiple devices such as a pedal device and a portable terminal simultaneously.
Innovation Solution
A control device that includes a first communication part for wireless communication with an electronic musical instrument and a second communication part for wireless communication with a control portion, transmitting different own information depending on the establishment of communication with the electronic musical instrument, allowing simultaneous control from both the pedal device and the portable terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a headphone is connected to only one control device through pairing, then the communication reliability is ensured, but the adaptability to control from multiple devices is reduced
Solution Approach 1:
The patent segments the control system into two independent communication paths: one direct connection between headphone and control device, and another connection between control device and terminal device. This segmentation allows the headphone to maintain reliable direct communication while also supporting indirect control through the terminal device, resolving the contradiction between reliability and multi-device adaptability.
Solution Approach 2:
The patent introduces a terminal device as an intermediary that can transmit control instructions to the headphone through the control device. This intermediary enables multi-device control capability without compromising the direct communication reliability between headphone and control device, as the terminal device operates as an additional control pathway rather than replacing the primary connection.
2Ease of operation
If a pedal device is connected to both headphone and portable terminal, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The control device is designed with multi-functionality to serve dual roles: it acts as both a direct control device for the headphone and as an intermediary that relays commands from the portable terminal. This universal design enables ease of operation through multiple control methods while avoiding the need for separate dedicated devices, thereby limiting the increase in overall system complexity.
3Adaptability or versatility
If the portable terminal connects to the headphone via the pedal device, then the adaptability is improved, but the reliability of communication determination is reduced
Solution Approach 1:
The patent implements feedback mechanisms where the control device provides communication status information to the terminal device. This feedback loop enables the terminal device to determine whether communication with the headphone is properly established through the control device, maintaining reliability in communication determination while supporting indirect communication pathways for enhanced adaptability.
Data Source
AI summary
A pedal device receives a connection signal transmitted from headphone to establish first communication that is communication with the headphone. Then, in a case where the first communication has been established, the pedal device transmits the connection signal including information indicating that communication with the headphone has been established. By receiving the connection signal from the pedal device, a portable terminal establishes second communication that is communication with the pedal device. In a case where the received connection signal includes information that the communication with the headphone has been established, the portable terminal may determine that communication establishment between the pedal device and the headphone has been completed.