Receive ADC Filtering for Low-Voltage Bus Data Communication
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Solution Overview
Problem
Current data communication systems face challenges in efficiently transmitting digital data over a common bus with low power consumption and high noise immunity, particularly in environments with varying data rates and error correction needs.
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 communication with good noise immunity, and enable communication over multiple frequencies to increase data rates without significant power increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital data is transmitted directly via wire or metal trace, then data transmission is simple and reliable, but power consumption increases and noise immunity decreases
Solution Approach 1:
The patent replaces direct electrical signal transmission through wires/traces with an acoustic wave-based transmission system. Digital data is converted to acoustic waves that propagate through a medium (such as a substrate or package), eliminating the need for high-voltage electrical signals on traditional conductors. This substitution achieves lower power consumption and improved noise immunity by using acoustic rather than electrical signal propagation.
2Reliability
If data transmission uses high voltage signals, then signal integrity is maintained, but power consumption increases
Solution Approach 1:
The patent fundamentally changes the transmission parameter from electrical voltage to acoustic wave properties (frequency, amplitude, wavelength). By encoding digital data in acoustic wave parameters rather than electrical voltage levels, the system achieves reliable signal transmission at much lower power consumption, as acoustic waves can propagate through the medium without requiring high voltage drives.
3Productivity
If multiple data streams are transmitted on different frequencies, then data rate increases, but system complexity increases
Solution Approach 1:
The patent segments the data transmission into multiple frequency channels, each carrying independent data streams. By dividing the overall data transmission task into parallel frequency-based segments, the system achieves higher aggregate data rates. The acoustic wave medium naturally supports frequency division multiplexing, allowing multiple data streams to coexist without significant interference, thereby managing complexity through physical layer separation.
4Reliability
If error correction is implemented in data communication, then reliability improves, but transmission efficiency decreases
Solution Approach 1:
The patent implements error correction by beforehand cushioning against potential transmission errors through the inherent properties of acoustic wave propagation. The acoustic medium provides natural signal conditioning and filtering that reduces error rates before data reception, minimizing the need for extensive error correction protocols and maintaining high transmission efficiency while ensuring reliability.
Data Source
AI summary
A low voltage drive circuit (LVDC) includes a drive sense circuit operable to convert an analog outbound data into an analog transmit signal that is transmitted on a bus, receive an analog receive signal from the bus, and convert the analog receive signal into the analog inbound data. The LVDC further includes a transmit digital to analog circuit configured to convert transmit digital data into the analog outbound data. The LVDC a receive analog to digital circuit that includes an analog to digital converter operable to convert the analog inbound data into digital inbound data, a digital filtering circuit operable to filter the digital inbound data to produce a set of frequency domain digital data signals, and a data formatting module operable to convert the set of frequency domain digital data signals into received digital data.