Patent · US Expired

Electronic endoscope apparatus provided with image forming position detecting means

US4891696A · kind A · utility

7Cited by
2References
25Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 12, 1989
Grant dateJan 2, 1990
Priority date
Expiry dateJan 12, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N23/555
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An optical image transmitted by an image transmitting member of a fiber scope is photoelectrically converted by an imaging device, is passed through a signal processing circuit and is displayed in a predetermined displaying position on a displaying picture surface. The range of the image imaged by the imaging device from the output signal from an imaging unit fitted with an image guide transmitting member on the exit end surface and containing the imaging device is detected, the value of the center position of the range is determined and the displaying position is corrected in response to the value.

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