| Organization: | National University of Singapore, Singapore, SG |
| I.P. Brief: | The invention relates broadly to a method of audible monitoring of acoustic signals outside human hearing range and to a real-time system for audible monitoring of acoustic signals outside human hearing range. |
| Summary of I.P.: | This invention enables the mapping of acoustic signals outside human hearing range to a human audible range such that the acoustic signals may be analyzed and monitored. It preserves the overall signatures and structures of the signal across bandwidth of typically few hundred kilo-hertz and presents them to audio frequency band, regardless of the signal type. It is a new way of dealing with ultrasound observation. The present invention is simplified and makes it possible to be reproduced into a real time system.
Potential clients may include manufacturers of ultrasound monitoring devices for a wide range of applications such as diagnostics of electronics and mechanical systems through ultrasound, leak detection, wearable ultra/infra sound listener for eco-tourism for listening to natural environment and animals, scientific device for biological research community etc. |
| Patent: | First Filing in the US on 30 August 2004; PCT filed on 30 August 2005 |
| Keywords: | Acoustic bandwidth compression, ultrasound detection, infrasound |
| Primary Industry: | Instrumentation |
| Specific Market: | Eco-tourism; Biological research instrumentation |
| Market Size: | Eco-tourism could be a candidate for high volume market, whereas biological research instrumentation could be a relatively lower volume but high value market. |
| State of the Art: | The current art includes ultrasound detectors and bandwidth shifters, which detect the presence of ultrasound, but do not provide a very representative sense of what the original \'sounds like\'. Either there is no bandwidth compression at all (heterodyning) or the output is significantly distorted (frequency dividers). |
| Figures of Merit: | There is no pictorial representation that readily conveys the richness of sound. As many animals/systems radiate ultrasound containing valuable information (such as from bats, high-voltage power lines, arcs in electrical system), this system opens up windows to new applications where users can make decisions based on the ultrasound. |
| Tech. Obstacles: | Improvements to its signal-to-noise ratio; Rugged-ize the prototype into commercial product; Potential design issues in order to suit environmental specifications etc. |
| Market Obstacles: | Optimizing of prototype to meet industry standards. |
| Patent Landscape: | US Patent No. 4,792,145 “Electronic Stethoscope System and Method”
US Patent No. 5,012,452 “Pulse Transformation Sonar”
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| Publications: | Teong Beng Koay, John Robert Potter, Mandar Chitre, Sheldon Ruiz, Eric Delory - A compact real-time acoustic bandwidth compression system for real-time monitoring of ultrasound, Oceans 2004, Kobe, Japan, 9-12 Nov 2004 |
| Research Team: | 5 members, with approximately 30 years of combined year of research experience:
John R. POTTER (Acoustics, signal processing), Eric DELORY (signal processing), KOAY Teong Beng (Electronics). Mandar CHITRE (signal processing) and Sheldon RUIZ (electronics) |