Method and apparatus for detecting hidden features disposed in an opaque environment
US6809991B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jan 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An excitation signal is selected and transmitted, and a signal is received containing information produced by a remote object in response to the excitation signal. The information is evaluated to attempt to identify the object, the excitation signal is adjusted on the basis of the evaluation, the adjusted excitation signal is transmitted, and a resulting signal is received and evaluated. A variation involves transmitting an excitation signal, transmitting an optical probe signal, receiving an optical signal which is a reflection of the probe signal and which contains information produced by a remote object in response to the excitation signal, and evaluating the information for the purpose of identifying the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.