Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-05-17
1989-03-21
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 33, 358168, 315384, H04N 324
Patent
active
048148806
ABSTRACT:
The screen grid of a CRT is connected to a blanking pulse amplifier by means of a resistor and a capacitor. This screen grid is also connected to the anode of a diode. The cathode of the diode is coupled to the ground by means of a ripple-removing capacitor, and is also connected by means of a resistor to the tap of a variable resistor for controlling the screen luminance of the CRT. During each scanning period of the CRT, the diode is turned on, thus equivalently connecting the ripple-removing capacitor to the screen grid. During each blanking period of the CRT, the diode is turned off, thereby disconnecting the ripple-removing capacitor from the screen grid.
REFERENCES:
patent: 2911469 (1959-11-01), Blake
patent: 3678191 (1972-07-01), Peters et al.
patent: 4069502 (1978-01-01), Nelson et al.
patent: 4689679 (1987-08-01), Hinn
Groody James J.
Kabushiki Kaisha Toshiba
Parker Michael D.
LandOfFree
Blanking circuit for use in a display apparatus which has a cath does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blanking circuit for use in a display apparatus which has a cath, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blanking circuit for use in a display apparatus which has a cath will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-481979