Patent · US Expired

Digital camera with variable gain to offset exposure error

US6100928A · kind A · utility

27Cited by
11References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 18, 1997
Grant dateAug 8, 2000
Priority date
Expiry dateJul 18, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N23/72
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In a digital camera, a gain for a variable gain amplifier is controlled by a controller so that when a signal level of an image signal for a CCD is corrected by the variable gain amplifier, a quantization error or an exposure error generated when a shutter speed is set by a unit of CCD electric charge sweep-away pulse will be offset.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.