Universal Input Output Circuit for Multi Medium Signal Transmission
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Solution Overview
Problem
The manufacturing cost of ICs increases when switching from metallic lines to wireless communication via free space, as existing ICs need to be remade with new input/output interfaces, and this remaking is required not only for changes in transmission medium but also for changes in transmission medium characteristics.
Innovation Solution
A signal processing device with input/output circuits that can transmit signals of a predetermined frequency band using either metallic lines, dielectric waveguides, or free space, without the need for remaking the IC, by employing input and output circuits with the same configurations that can operate across different transmission media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an IC is remade to include a wireless communication input/output interface, then wireless signal transmission capability is improved, but manufacturing cost increases
Solution Approach 1:
The input/output circuit is designed with universal functionality to support multiple transmission media types (metallic lines, dielectric waveguides, and free space wireless communication). By incorporating adaptable circuit architecture that can operate across different transmission mediums, the IC achieves multi-functionality without requiring separate dedicated interfaces for each medium, thereby avoiding remaking costs while maintaining manufacturing efficiency
2Ease of operation
If transmission medium is changed from metallic line to free space, then arrangement freedom of IC on board is improved, but IC remaking is required
Solution Approach 1:
The input/output circuit employs dynamic adaptability to adjust its operation mode based on the transmission medium being used. The circuit can dynamically switch between metallic line communication mode, dielectric waveguide mode, and free space wireless mode, allowing the IC to be relocated or reconfigured on the board without requiring physical remaking, thus maintaining manufacturing simplicity while gaining arrangement flexibility
3Reliability
If input/output interface is designed for specific transmission medium, then transmission performance is improved, but adaptability to other media deteriorates
Solution Approach 1:
The input/output circuit utilizes parameter changes to adapt to different transmission media while maintaining reliable transmission. By adjusting operational parameters such as impedance, frequency, and signal characteristics based on the detected transmission medium type, the circuit achieves optimal transmission performance for metallic lines, dielectric waveguides, and free space wireless communication without requiring separate dedicated interfaces for each medium
Data Source
AI summary
A signal processing device includes: signal processing circuits. The signal processing circuit includes an input/output circuit configured by an input circuit serving as an input interface of a signal of a predetermined frequency band and/or an output circuit serving as an output interface of a signal of the frequency band and performs transmission of a signal of the frequency band between the signal processing circuit and another signal processing circuit. The output circuits of one and another signal processing circuits include circuits having the same configuration. The input circuits of the one and another signal processing circuits include other circuits having the same configurations. The input/output circuits of the one and another signal processing circuits can perform transmission of a signal of the predetermined frequency band even when any one of transmission media having mutually different characteristics is mediated.