Original reading apparatus with variable gain amplification
US8867105B2 · kind B2 · utility
4Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An original reading apparatus including: a light source configured to illuminate an original; a line image sensor configured to convert light reflected from the original into an analog output signal; an AD converter configured to convert the analog output signal output from the line image sensor into a digital output signal; a control device configured to control the line image sensor and the AD converter; and a variable gain amplifier provided inside the line image sensor, for adjusting a signal range of the analog output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.