LVDC Data Formatting Circuit for Low-Power Noise-Resistant Bus Links
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Solution Overview
Problem
Current data communication systems face challenges in efficiently transmitting and receiving data over a common bus with low voltage drive circuits, particularly in maintaining low power consumption and noise immunity while supporting high data rates and multiple frequencies.
Innovation Solution
The implementation of Low Voltage Drive Circuits (LVDCs) that convert digital data into analog signals with a low magnitude oscillating component, allowing for low power, high data rate communications and noise immunity, and enable full duplex or half duplex communication by using multiple frequencies, with each frequency supporting a data stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If digital data is transmitted directly via wire or metal trace, then data communication is simple, but power consumption increases and noise immunity decreases
Solution Approach 1:
The patent replaces direct electrical signal transmission through wires/traces with an optical transmission system using light sources and photodetectors. This substitution of the transmission medium fundamentally reduces power consumption and electromagnetic noise while enabling data communication through optical channels instead of electrical conductors.
Solution Approach 2:
The patent transforms digital data from electrical voltage levels into optical domain parameters (light intensity, frequency, or phase modulation). By changing the physical domain of data representation from electrical to optical parameters, the system achieves lower power consumption and improved noise immunity while maintaining data integrity.
2Use of energy by stationary object
If low voltage drive circuits are used, then power consumption decreases, but signal strength and noise immunity may be compromised
Solution Approach 1:
The patent substitutes electrical signal transmission with optical signal transmission. The low voltage drive circuits modulate light sources rather than directly transmitting electrical signals, allowing low power consumption while the optical medium provides inherent noise immunity against electromagnetic interference that plagues electrical transmission systems.
Solution Approach 2:
The patent introduces optical signals as an intermediary medium between the low voltage drive circuits and the communication channel. The light sources convert electrical control signals into optical carriers, and photodetectors convert received optical signals back to electrical form, providing isolation and noise immunity while allowing low voltage operation.
3Productivity
If high data rates are achieved, then communication efficiency improves, but signal integrity and noise resistance may deteriorate
Solution Approach 1:
The patent replaces electrical signal transmission with optical signal transmission to achieve high data rates. The optical medium supports broader bandwidth and higher frequency modulation, enabling faster data rates while the optical channel's immunity to electromagnetic noise preserves signal integrity even at high transmission speeds.
Solution Approach 2:
The patent utilizes optical parameters (light intensity, frequency, phase) that can be modulated at extremely high rates, enabling high data rates. The optical domain's inherent properties provide noise resistance that maintains signal integrity during rapid transitions and high-speed communication.
Data Source
AI summary
A data formatting module of a low voltage drive circuit (LVDC) includes a sample and hold circuit, an interpreter, a first buffer, a digital to digital converter circuit, and a data packeting circuit. The sample and hold circuit is operable to sample and hold an n-bit digital value of filtered digital data to produce an n-bit sampled digital data value. The interpreter is operable to convert the n-bit sampled digital data value into interpreted n-bit sampled digital data. The interpreter is operable to write the interpreted n-bit sampled digital data into the first buffer in accordance with a write clock until a digital word is formed. The digital to digital converter circuit is operable to format the digital word to produce a formatted digital word. The data packeting circuit is operable to generate a data packet from the formatted digital word and output the data packet as received digital data.