Video system controller with a row address override circuit

Details Video system controller with a row address override circuit Video system controller with a row address override circuit

1984-07-23

1987-04-07

Krass, Errol A.

Boots, shoes, and leggings

364521, 364900, 340798, G06F 314, G06F 3153

Patent

active

046565973

ABSTRACT:
A video system is able to change the display on a video monitor with a minimal number of memory transfer cycles. The video system includes a monitor for displaying of processed data, a processor means for processing the data to be displayed, a display memory means divided into a plurality of planes addressable by a row address, the display memory stores the data that has been processed by the processor means. There are additional other sources of data which is processed by the processor means for storing in the display memory and subsequently being displayed by the CRT monitor . A control means controls the data transfer between the data sources, the processor, the display memories, and the CRT monitor and includes a row address override circuit. The row address override circuit comprises a plurality of output logic for providing a write enable signal to a memory plane. Each memory plane is connected to a cross finding output logic circuit. A select means selects a source of data that is to be written to the memory plane, and an override means provides a write enable to a preselected number of memory planes simultaneously with the same predetermined number of output logic circuits.

REFERENCES:
patent: 4075620 (1978-02-01), Passavant et al.
patent: 4237543 (1980-12-01), Nishio et al.
patent: 4481509 (1984-11-01), Sasaki et al.
patent: 4511965 (1985-04-01), Rajaram
patent: 4528636 (1985-07-01), Robinson, III
patent: 4546450 (1985-10-01), Kanuma
patent: 4546451 (1985-10-01), Bruce

Affiliated with

Also associated with

Rating

Video system controller with a row address override circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video system controller with a row address override circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video system controller with a row address override circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1090277