Network Control Device Selective Wake-Up via Low Frequency Attenuation

The patent applies local quality by making different parts of the system (nodes) have different operational states. Specifically, only the target node that needs to wake up does so, while other nodes remain in sleep mode. This is achieved by embedding node identification information in the wake-up signal and having nodes selectively wake up based on whether they are the intended target, thus reducing overall power consumption while maintaining necessary signal awareness.

The patent changes the parameter of signal frequency to solve the contradiction. It uses low-frequency signals for wake-up communication that can penetrate through the low-frequency attenuator when nodes are in sleep mode, while high-frequency communication signals are blocked by the attenuator. This frequency-based parameter change allows selective wake-up without interfering with normal high-speed communication operations.

The patent applies dynamics by making the low-frequency attenuator's attenuation characteristic dynamic based on the operational mode. When nodes are in wake-up mode, the attenuator allows low-frequency wake-up signals to pass through. When nodes are in sleep mode, the attenuator blocks low-frequency signals to prevent interference with high-speed communications. This dynamic behavior enables the system to switch between wake-up and communication modes effectively.

The patent uses the low-frequency attenuator as an intermediary element between the wake-up signal transmission path and the high-speed communication path. The attenuator selectively passes or blocks signals based on frequency, acting as a mediator that allows wake-up signals to reach sleeping nodes while preventing them from interfering with active communication operations.