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Coupling Wire Parametric Cells

IP.com Disclosure Number: IPCOM000096547D
Original Publication Date: 1963-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Nussbaumer, H: AUTHOR

Abstract

The system does not use transformers in the coupling of parametric cells. Each cell is a symmetrical oscillating circuit comprising a capacitor C and four non-linear inductances L1, L2, L3 and L4, bridge-mounted. The non-linear inductances are conducting wires, coated with a ferromagnetic layer. The circuit is tuned at a frequency f/2. The output oscillation is picked up on terminals A and B, connected to the plates of the capacitor C. The pump current, at frequency f, and the bias are fed to the other terminals of the bridge D and E. The phase of the output oscillation is determined by a input oscillation. This is fed between A and B before application of the pump current. The oscillation can come from one source or from several sources. When the cell is used as a logical circuit.

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Coupling Wire Parametric Cells

The system does not use transformers in the coupling of parametric cells. Each cell is a symmetrical oscillating circuit comprising a capacitor C and four non-linear inductances L1, L2, L3 and L4, bridge-mounted. The non-linear inductances are conducting wires, coated with a ferromagnetic layer. The circuit is tuned at a frequency f/2. The output oscillation is picked up on terminals A and B, connected to the plates of the capacitor C. The pump current, at frequency f, and the bias are fed to the other terminals of the bridge D and E. The phase of the output oscillation is determined by a input oscillation. This is fed between A and B before application of the pump current. The oscillation can come from one source or from several sources. When the cell is used as a logical circuit.

The cells are arranged in groups. Each group is fed during part of the time. This is according to a disposition which is in the parametric logic. The connection between a cell of a group and a cell of the following group is realized by resistors only. Part of the pump current is derived through the resistors. Since the impedance of the resistors is considerably higher than the one of the magnetic wires, the operation of the system is not disturbed.

The oscillation is transmitted either without phase inversion, e. g., P'1 to P''2 or P''2 to P4 or with phase inversion, e. g., P'1 to P''1. The outputs of several cells can be connected to the input of the sam...