Browse Prior Art Database

Monolithic Diode Matrix Code Translator

IP.com Disclosure Number: IPCOM000092206D
Original Publication Date: 1968-Oct-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Gurski, CS: AUTHOR [+2]

Abstract

The monolithic chip provides a code translation function. A double-level And-Or Boolean function is executed via the And and Or sections of the monolithic chip. These sections contain a series of common anode logic diodes. These sections are also arranged for connecting, via discretionary programmed monolithic metal interconnections, for example, those indicated 1, 2, 3, and 4, the desired input signals, true or complement, to desired And diode cathodes 5 and 6 and connecting desired Or diode cathodes, for example, 7 and 8, to each other. Each output signal node 1 and 2 is a group of such connected Or diode cathodes which provides the desired And-Or Boolean function output. True and complement input variables drive pairs of input lines.

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Monolithic Diode Matrix Code Translator

The monolithic chip provides a code translation function. A double-level And- Or Boolean function is executed via the And and Or sections of the monolithic chip. These sections contain a series of common anode logic diodes. These sections are also arranged for connecting, via discretionary programmed monolithic metal interconnections, for example, those indicated 1, 2, 3, and 4, the desired input signals, true or complement, to desired And diode cathodes 5 and 6 and connecting desired Or diode cathodes, for example, 7 and 8, to each other. Each output signal node 1 and 2 is a group of such connected Or diode cathodes which provides the desired And-Or Boolean function output. True and complement input variables drive pairs of input lines. These lines are therefore two times in number the number of variable bits in the input code. The number of output nodes 1 and 2 is equal to the number of output code variable bits. Pull-up resistors, not shown, are attached to ends of the common anode P region of each And circuit. A metal power bus at the other end provides connections via P regions in the monolithic chip.

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