Image input apparatus, image input system, light source control method, and storage medium
US6492782B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 7, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0418
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is an object of this invention to provide an image input apparatus, image input system, light source control method, and storage medium capable of providing on the market an image input apparatus which greatly reduces the time before actual reading starts and which can be easily used in a manner based upon the energy saving standard. To achieve this object, the image input apparatus includes internal and external light sources for irradiating an original, an internal light source light amount controller for turning on/off the internal light source, an external light source light amount controller for turning on/off the external light source, a CCD for reading an original irradiated with light, a RAM for temporarily storing the read data, an interface circuit for transferring the data stored in the RAM to an external apparatus, and a CPU for turning on the light sources when an application program is enabled by the OS of the external apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.