Image sensing apparatus
US4803562A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Jun 11, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/66
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic endoscope apparatus comprises an endoscope and a video processor unit. The video processor unit includes a drive pulse generator for generating vertical drive pulses, a power supply for generating a +16 V power supply voltage, and a video processor for sampling and holding an input image signal. The endoscope includes an insertion portion which incorporates a solid-state image sensing element using a CCD at its distal end portion, a manipulator portion, and a universal cord for connecting an electronic endoscope body to the video processor unit. An integrated circuit unit is incorporated near the solid-state image sensing element at the distal end portion of insertion portion. The integrated circuit unit includes voltage dividing resistors for voltage dividing a +16 V power supply voltage supplied from the power supply of the video processor unit into +8 V, +7 V, and +3 V power supply voltages, and emitter follower transistors connected between these power supply voltages and the power supply voltage terminals of the solid-state image sensing element. A delay line is incorporated in the manipulator portion. The delay line delays horizontal drive pulses generated from …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.