RAM interface control circuit

Details RAM interface control circuit RAM interface control circuit

1987-03-31

1988-01-05

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358101, 358903, 356384, N04N 718

Patent

active

047179554

ABSTRACT:
A RAM (Random Access Memory) interface control circuit is used for measuring spaces in a periodic matrix by controlling a RAM memory circuit coupled between a photodetector array interface circuit and a computer. A plurality of light sources simultaneously illuminate the matrix with light at a plurality of discrete locations. A plurality of linear photodiode arrays simultaneously receive the respective light/shadow images from the matrix at the discrete locations, and associated control and quantizer circuits produce signals representative of the spaces and areas therebetween. RETICON interface circuits are coupled, respectively, to the control and quantizer circuits for simultaneously converting the signals for each location into data values and transmitting the data values in parallel to respective RAMs. RAM interface control circuits are coupled, respectively, to the RAMs for sequentially addressing the respective RAMs for seriatim transfer of the data values to the computer.

REFERENCES:
patent: 4480264 (1984-10-01), Duschl
patent: 4498779 (1985-02-01), Southgate et al.
patent: 4525735 (1985-06-01), Krufka
patent: 4533251 (1985-08-01), French et al.
patent: 4556902 (1985-12-01), Krufka
patent: 4665429 (1987-05-01), Krufka

Affiliated with

Also associated with

Rating

RAM interface control 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 RAM interface control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RAM interface control circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-11343