Item #M504 Hybrid Circuits for the Paramatrix System. Edward F. Prozeller.

Hybrid Circuits for the Paramatrix System.

Report No. 188, Dept. of Computer Science, University of Illinois, Urbana, Ill. September 7, 1965; 47 pages, illustrations, references.

Condition: Very Good overall, turquoise-blue and white cardstock covers with illustration of punched card on cover front, bound stapled wraps with cloth tape along spine. A bit of shelfwear, rubberstamp of corporation address on front cover. Sound and secure binding, clean ad unmarked pages.

Keywords: Hybrid Circuits for the Paramatrix System, Edward F Prozeller, history of computing at university of illinois, 1960s computers, computers in the 1960s, analog computers in the 1960s, analog computation 1960s, the Paramatrix pattern-processing compute

Price: $15.00

Item Description

Contents include sections on -- Diamond Gate; Analog Comparator; Applications of Hybrid Circuits - Paramatrix digital-to-analog conversion; paramatrix function generation and interpolation etc; summary and conclusions; references; Appendix

'a pattern processing system called Paramatrix. The inputs to Paramatrix consist of line drawings which have been encoded into a discrete set of 32 d-c voltages lying in the interval +8 to -8 volts. The output of the system consists of the visual presentation of the input pattern.... apart from input-output, the purpose of Paramatrix is to sequentially translate, rotate, and/or magnify a bounded set of analog voltages. The transformed analog data are then digitized in order that they can be used by a digital computer or, as in the present system, to drive a matrix of flipflop circuits for the purpose of visual display...' (from the introduction)

ABSTRACT -- In order to design an analog/digital computer to perform pattern processing, it became necessary to design precision analog and analog/digital circuits. This paper discusses in detail the design of two hybrid circuits, namely an analog comparator and an analog gate. The design of a compensated emitter-follower is also described as are the applications of these three circuits in the Paramatrix, pattern-processing computer..