Method for evaluating quality of raw coffee beans
US5034609A · kind A · utility
16Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Aug 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/91
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an apparatus for evaluating raw coffee beans, a near-infrared light beam is applied to sample coffee powder, and a detector receives light reflected from and/or transmitted through the sample coffee powder to generate a signal representative of luminous intensity of the received light. A memory device has stored therein at least one of characteristic coefficients and appraisal coefficients for the sample coffee powder. A calculation device calculates at least one of characteristic values and appraisal values of the raw coffee beans, based on the stored coefficients and the signal from the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.