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Data Streaming In Super Conductive Circuits

IP.com Disclosure Number: IPCOM000097257D
Original Publication Date: 1962-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Criesmer, JH: AUTHOR [+2]

Abstract

Streaming of data through a chain of superconductive circuits is provided. Data is entered into the input circuit of the chain prior to the time at which previously entered data is read out from the final circuit of the chain.

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Data Streaming In Super Conductive Circuits

Streaming of data through a chain of superconductive circuits is provided. Data is entered into the input circuit of the chain prior to the time at which previously entered data is read out from the final circuit of the chain.

The circuit consists of a chain of three identical Exclusive Or circuits connected in cascade. Each stage includes a horizontal wire pair for each term of the Exclusive Or function and a vertical wire pair for each variable of the function. A further vertical wire pair indicates the output value of the stage and set and readout controls.

Circuits of this general type may be formed to generate any Boolean function and, therefore, the technique of data streaming is not limited to these particular circuits.

In operation, initially set line S1 is energized to direct currents I1 and I along the top wire of each term wire pair of Stage I by rendering cryotrons 10 and 11 resistive. At this time currents I1 and I2 also render cryotrons 12 and 13 resistive to cause current 13 to flow along the 1 valued side of the wire pair representing the Stage I output function C. Next, the logical inputs A and B are applied to Stage I. In the Exclusive Or circuit, the top wire in either of the term wire pairs remains superconducting if, and only if, the values of A and B are such as to render the value of the output function C equal to 1. For example, with,A = 1 and B = 0 the top wire of the first term wire pair remains superconducting, and with A = 0 and B = 1 the top wire of the second term wire pair remains superconducting. However, with A = 0 and B = 0 cryotrons...