The Science of Signal Advance, Inc.

A physical phenomenon referred to as Negative Group Delay (NGD), demonstrated in simple electronic circuits, has been shown to temporally advance the detection of analog waveforms. Specifically, the output is advanced in time relative to the input, as the time delay through the circuit is negative.

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Invest in Signal Advance, Inc.

Information for investors, including Corporate filings and executive summary.

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Partner with Signal Advance, Inc.

Signal Advance, Inc is actively seeking strategic partners to pursue implementation of our proprietary technology in the broad range of application areas. We provide our partners a competitive market advantage.

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Analog Guard^® – Physical-Layer Encryption from Signal Advance

Effective January 1, 2026, Signal Advance transferred its Analog Guard^® encryption technology and related patents into Analog Guard, Inc., a newly formed, wholly-owned subsidiary. Analog Guard is a hardware-rooted encryption platform that protects data at the physical signal layer rather than in software – a fundamentally different approach designed to resist the remote-hacking techniques that defeat conventional digital encryption. The portfolio includes three issued U.S. patents, a fourth allowed application, and international filings in China, Germany, and India.

Learn More About Analog Guard Visit www.analoguard.com