Autofocus television camera with means for reading and comparing

Facsimile and static presentation processing – Facsimile – Recording apparatus

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

358225, H04N 5232

Patent

active

046689915

ABSTRACT:
A camera for recording television, photographic or cinematographic images comprises an automatic focusing device. The information required for automatic focusing is obtained with the aid of a partial blocking arrangement for blocking two different portions of an optical path leading to an electronic image sensor. These two portions are located on opposite sides of an optical central axis. After signals obtained during the partial blocking periods have been compared with each other, the focusing is adjusted until signal correlation is optimized.
To produce a camera having both undisturbed scene recording and automatic focusing, while using only one sensor, this camera includes a charge transfer device. The device comprises a pickup member, a storage member, and a shift register member. The charge transfer device operates during a television field period TV in the following sequence: scene pickup period TVS, pickup storage transfer period TFO, first partial blocking pickup period TAS, first blocking storage transfer period TF1, second partial blocking pickup period TBS, and second blocking storage transfer period TF2.

REFERENCES:
patent: 3824337 (1974-07-01), Sangster et al.
patent: 4381523 (1983-04-01), Eguchi et al.
patent: 4542971 (1985-09-01), Numata

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Autofocus television camera with means for reading and comparing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Autofocus television camera with means for reading and comparing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Autofocus television camera with means for reading and comparing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-707210

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.