Art processor in a picture-in-picture system

Details Art processor in a picture-in-picture system Art processor in a picture-in-picture system

1989-08-02

1990-12-04

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, H04N 5272

Patent

active

049757741

ABSTRACT:
An art processor in a picture-in-picture system which performs a given art processing to a subscreen when subscreen the same image source as a main screen. One embodiment to carry out the objects of the invention includes a first synchronous signal detector and a second synchronous signal detector which detect synchronous signals from image sources received, an exclusive OR gate for comparing a first synchronous signal and a second synchronous signal, an integrator for integrating said synchronous signals, a monostable multivibrator for producing a pulse signal having a given width, a DC generator for changing said pulse signal to a smooth DC signal, a driving signal generator for producing a driving signal by use of said DC signal, a switching stage for switching a plurality of input lines of PIP signal according to said driving signal, and a D/A converter for generating a given art signal for the subscreen.

REFERENCES:
patent: 4212009 (1980-07-01), Adleman et al.
patent: 4386363 (1983-05-01), Morrison
patent: 4580165 (1986-04-01), Patton et al.
patent: 4682226 (1987-07-01), Kadlec
patent: 4682234 (1987-07-01), Naimpally
patent: 4727362 (1988-02-01), Rackley et al.
patent: 4777531 (1988-10-01), Hakamada et al.
patent: 4847608 (1989-07-01), Bouron
patent: 4894719 (1990-01-01), Moon
patent: 4903127 (1990-02-01), Phillips

Affiliated with

Also associated with

Rating

Art processor in a picture-in-picture system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Art processor in a picture-in-picture system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Art processor in a picture-in-picture system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-886569