Parallel Demodulation Circuit for Wireless Charging Signal Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional communication signal demodulation apparatuses consume time due to repeated demodulation attempts when correction checks fail, particularly in applications like wireless charging, where reactivation of signal transmission is necessary.
Innovation Solution
A communication signal demodulation apparatus and method utilizing multiple sensor circuits, processing filters, demodulators, and a determination circuit to sense, filter, and demodulate signals, with a determination mechanism to verify unit signal correctness and combine valid signals, avoiding repeated demodulation by employing checksum or parity checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional demodulation performs correction check and repeats demodulation when check fails, then data accuracy is ensured, but demodulation time increases significantly
Solution Approach 1:
The patent segments the demodulation process into multiple parallel demodulators that simultaneously process different portions or aspects of the communication signal. Each demodulator generates demodulation results independently, and the determination circuit selects the correct result through verification. This parallel segmentation eliminates the need for sequential retry attempts, thereby ensuring data accuracy while significantly reducing demodulation time.
2Reliability
If repeated demodulation attempts are performed when correction check fails, then correct data is eventually obtained, but communication efficiency decreases
Solution Approach 1:
The patent implements preliminary verification actions by incorporating a determination circuit that performs checksum or parity check verification on demodulation results before they are accepted. Multiple demodulators generate candidate results in advance, and the determination circuit immediately verifies them using predetermined verification values embedded in the communication signal. This preliminary verification approach ensures data correctness while maintaining high communication efficiency by avoiding repeated demodulation cycles.
3Reliability
If conventional apparatus retries demodulation from beginning when check fails, then error correction is achieved, but signal transmission reactivation is required consuming additional time
Solution Approach 1:
The patent maintains continuous demodulation action by keeping multiple demodulators operating simultaneously throughout the process. When one demodulator's result fails verification, other demodulators' results are already available for immediate selection, eliminating the need to stop and restart signal transmission. The determination circuit continuously monitors all demodulator outputs and selects the verified correct result, ensuring error correction while maintaining uninterrupted signal processing and avoiding reactivation delays.
Data Source
AI summary
A communication signal demodulation apparatus demodulates a communication signal to generate an output signal. The communication signal demodulation apparatus includes: plural sensor circuits which sense different electrical characteristics of one same communication signal and generate corresponding sensing modulation signals respectively; plural processing filters which filter the corresponding sensing modulation signals respectively and generate corresponding filtered modulation signals respectively; plural demodulators which demodulate the plural filtered modulation signals and generate corresponding demodulation signals respectively, wherein each of the filtered modulation signals corresponds to at least one of the demodulators; and a determination circuit which receive the plural demodulation signals, determine whether each unit signal of each of the demodulation signals is correct or not according to a determination mechanism, and combine one or more correct unit signals to generate the output signal.