Method of decoding encoded relative spectral data
US5004910A · kind A · utility
5Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34792
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of decoding spectral data that has been encoding by modulation of a spectrum of light to produce data bits from a source using on/off and off/on transitions to represent each data bit. A start data bit with a constant width precedes each segment of light representing the data bits. The intersection of the output of spectral detectors and a hysteresis curve determines a transition through which information is obtained from the encoded data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.