Analyzing reflection data for recording medium identification
US7635853B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2008 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Oct 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8663
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is proved for analyzing frequency distribution of a reflection from a surface of a body to determine a type of body surface. Initially, a plurality of data points from a sensor that senses the reflection of the body's surface are provided. A first series of terms are summed together to provide a first magnitude, each term including a plurality of data points; wherein the plurality of data points being spaced apart by a first spacing. A second series of terms are summed together to provide a second magnitude, each term including a plurality of data points; wherein the plurality of data points being spaced apart by a second spacing. The first magnitude is compared to the second magnitude to determine the type of body surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.