Browse Prior Art Database

Shift Register

IP.com Disclosure Number: IPCOM000098311D
Original Publication Date: 1960-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Kinberg, COL: AUTHOR [+2]

Abstract

This circuit includes three stages A, B, C of a shift register. Each stage is a bistable carrier circuit in which a binary ONE is represented, for example, by a high current in the left and a low current in the right branch. A ZERO is represented by a low current in the left and a high current in the right branch.

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Shift Register

This circuit includes three stages A, B, C of a shift register. Each stage is a bistable carrier circuit in which a binary ONE is represented, for example, by a high current in the left and a low current in the right branch. A ZERO is represented by a low current in the left and a high current in the right branch.

Each stage comprises two condensers 11, 12, two nonlinear elements 13, 14 and two inductances simultaneously functioning as a symmetrical transformer 15, preferably wound on a common support 16 to insure a well defined coupling between the stages.

Various embodiments of nonlinear elements 13, 14 can be designed. One such element is a skin effect element with nonlinear impedance characteristics with respect to current, for example, thin, preferably cylindrical conductors of copper, silver or any other well conducting material with a thin coating of saturable ferromagnetic material deposited on it. The symmetrical transformer 15 may be wound by such a skin effect wire.

Another embodiment is saturable reactors, for example, ferrite cores with rectangular hysteresis loop characteristics. By depositing a thin coating of saturable ferromagnetic material onto the surface of support 16, the same result can be achieved.

A third embodiment consists of ferroelectric condensers which exhibit nonlinear capacitance characteristics and function as nonlinear elements. In this case, condensers 11, 12 are superfluous.

The circuitry in each of the branches...