Floating-Point Vibration Signal Transmission for Precise Reception Processing
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Solution Overview
Problem
Existing technologies face challenges in maintaining high precision for arithmetic operation processing of vibration signals, such as sound and tactile vibration signals, due to inadequate signal formats during transmission.
Innovation Solution
A transmission apparatus converts vibration signals into 16-bit half-precision floating-point format data and transmits it via a transmission path, ensuring appropriate handling and processing on the reception side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vibration signals are transmitted in conventional fixed-point format, then transmission simplicity is maintained, but arithmetic operation precision deteriorates during reception processing
Solution Approach 1:
The patent changes the numerical representation parameter from fixed-point format to floating-point format (specifically 16-bit half-precision format). This parameter change enables the signal to represent both very small and very large values with appropriate precision, allowing complex arithmetic operations like gain adjustment and nonlinear processing to maintain high precision without overflow or underflow errors.
2Adaptability or versatility
If maximum displacement is set to the maximum representable value in floating-point format, then dynamic range is maximized, but headroom for arithmetic operations is lost
Solution Approach 1:
The patent applies beforehand cushioning by setting the maximum displacement of the vibration signal to a value smaller than the maximum representable value in floating-point format. This creates a safety margin or headroom that prevents overflow during arithmetic operations such as gain adjustment and nonlinear processing, ensuring reliable operation even when signal amplitudes are amplified or processed.
3Adaptability or versatility
If floating-point data is transmitted using standard audio transmission structures, then compatibility is improved, but data interpretation errors may occur
Solution Approach 1:
The patent uses the existing audio transmission structure (such as IEC 60958 audio sample word regions) as an intermediary carrier for floating-point vibration signal data. By mapping floating-point data into conventional audio data formats, the system achieves compatibility with standard transmission paths while maintaining the precision benefits of floating-point representation, preventing misinterpretation at the reception end.
Data Source
AI summary
To transmit a vibration signal in such a manner that arithmetic operation processing can favorably be executed on a reception side. The vibration signal is converted into data in floating-point format by a conversion section. For example, the vibration signal is an audio signal or a tactile vibration signal. For example, the data in the floating-point format is 16-bit half-precision floating-point data. The data in the floating-point format is transmitted by a transmission section to an external apparatus via a transmission path. For example, the transmission path is an HDMI transmission path. Moreover, for example, the transmission section uses a transmission signal structure for each block including a plurality of frames for an audio signal to transmit the data in the floating-point format.