Musical Device Serial Data Transmission Grouping
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Solution Overview
Problem
Existing musical devices using time division multiplexing (TDM) methods face limitations in efficiently transmitting data beyond the defined number of channels, particularly in devices with a large number of performance control elements like an electronic keyboard with 88 keys, requiring a dedicated interface to handle data exceeding 32 channels.
Innovation Solution
A musical device employing a data transmission system that serially transmits identification information to identify groups of data exceeding the predefined number of channels using a time-division method, allowing for the transmission of data across multiple channels within a predefined number of cycles, enabling efficient communication without the need for a dedicated TDM interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional TDM interface is used to transmit data, then the transmission is simple and reliable, but the number of channels is limited to 32 channels maximum
Solution Approach 1:
The patent segments the transmission system into multiple functional blocks: a transmitter that divides data into groups with identification information, a transmission line, and a receiver that separates and identifies data groups. This segmentation allows the system to handle more than 32 channels by organizing data into identifiable groups transmitted over the same physical interface, effectively overcoming the conventional channel limit without requiring a dedicated multi-channel interface.
2Adaptability or versatility
If the number of performance control elements is increased to cover more keys (e.g., 88 keys), then the musical device becomes more versatile, but the data transmission capacity exceeds the predefined number of channels
Solution Approach 1:
The patent implements periodic action by transmitting data in cycles where each cycle contains multiple data groups with identification information. The transmitter periodically sends groups of data corresponding to different performance control elements, and the receiver periodically separates and identifies these groups. This periodic transmission structure enables the system to handle a large volume of data from numerous performance control elements (such as 88 keys) by organizing it into manageable, identifiable periodic bursts, effectively expanding the data transmission capacity beyond conventional channel limits.
Data Source
AI summary
A music device according to an embodiment of the present disclosure comprises a plurality of sensors that detect a movement of a plurality of performance control elements, respectively, the plurality of performance control elements including at least three performance control elements, a first transmitter that serially transmits identification information to identify a first group of data and the first group of data, using a first predefined number of data channels in time-division of a first predefined number of cycles, and a first receiver that identifies the first group of data from data serially received from the first transmitter based on the identification information. The first predefined number of data channels includes at least two data channels, the first predefined number of cycles includes at least two cycles. The first group of data includes information indicating a detection result output from each of the plurality of sensors.