Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1975-09-12
1977-05-03
Habecker, Thomas B.
Facsimile and static presentation processing
Facsimile
Recording apparatus
346163, H04N 100
Patent
active
040216055
ABSTRACT:
Stencil cutting apparatus for electrically burning information from an original document into a stencil material having non-linear burning characteristics by the application of electrical pulses to a stylus contacting the stencil material positioned on a rotatable cylinder, includes a photomultiplier for scanning the original document and providing an output signal the amplitude of which is proportional to the light reflected by the information thereon, a circuit including a square wave oscillator and wave shaping network which alters the square wave in relation to the burning characteristics of the stencil material to produce a resultant train of pulses and a comparator circuit which adds the photomultiplier signal and train of pulses. The comparator provides output pulses having a width determined by the addition of the last-mentioned signal and pulses which are fed to the stylus for burning the stencil. The cylinder upon which the stencil material is mounted includes a magnet which revolves as the cylinder rotates. The movement of the magnet past a sensing coil produces a signal to discontinue the burning as the stylus passes over the stencil clamp of the cylinder.
REFERENCES:
patent: 3801738 (1974-04-01), Egerton
patent: 3952144 (1976-04-01), Kolker
A. B. Dick Company
Habecker Thomas B.
Lucyshyn Peter S.
LandOfFree
Electronic circuit for electronic stencil cutter 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 circuit for electronic stencil cutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic circuit for electronic stencil cutter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-346551