Electronic viewfinder

Details Electronic viewfinder Electronic viewfinder

1983-09-08

1986-05-13

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358180, H04N 530

Patent

active

045890293

ABSTRACT:
An electronic viewfinder comprises a plurality of picture elements which form a matrix image display device. A drive circuit is connected to the display device to cause the electronic viewfinder to selectively display a portion of the image, corresponding to the video signal being received by the drive circuit, at an increased magnification. The drive circuit includes frequency divider circuits for providing shift clock pulse signals at frequencies corresponding to the available rates of magnification of the image portion. The drive circuit further includes delay circuits for delaying synchronizing signals to select the portion of the image which is to be displayed. The electronic viewfinder having this drive circuit, is capable of providing increased resolution for a portion of an image by enlarging the image, while allowing the electronic viewfinder to be formed by a relatively small number of picture elements, so that the electronic viewfinder may be miniaturized and manufactured at a reduced cost.

REFERENCES:
patent: 3935381 (1976-01-01), Petrocelli et al.
patent: 4002824 (1977-01-01), Petrocelli et al.
patent: 4079413 (1978-03-01), Yamashita

Affiliated with

Also associated with

Rating

Electronic viewfinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic viewfinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic viewfinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1773526