Method and device for identifying an object and determining its location
US6392747B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reflected laser pulse (23) is received by a detector (34) which is a single component of a detector array (30). The reflected laser pulse is then amplified by an amplifier (36) and sent through a matched filter (38) to optimize the signal-to-noise ratio. A data sampler (40) takes samples of the reflected laser pulse (23) and stores the data samples within a temporary data storage (42). A comparator (44) compares each data sample in the temporary data storage (42) to a predetermined threshold constant to determine if the threshold constant has been exceeded. When the threshold constant is exceeded, the data from the temporary data storage (42) is sent to a buffer (48) where it is held while an analog-to-digital converter (50) digitizes the samples for use by a computer (26) in identifying an object and determining the location of the detected object. The identity and location of the detected object are displayed on a display device (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.