Browse Prior Art Database

Indicator For Core Registers

IP.com Disclosure Number: IPCOM000098141D
Original Publication Date: 1960-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Vecchiarelli, N: AUTHOR [+2]

Abstract

This circuit indicates the bit position in a magnetic core shift register. When the bit originally stored in core 1 is shifted to core 2, capacitor C(a) is charged. This charge on C(a) raises the potential on the grid of indicator thyratron I(1) sufficiently to cause ignition. Therefore, ignition of I(1) indicates that the bit has advanced to core 2.

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Indicator For Core Registers

This circuit indicates the bit position in a magnetic core shift register. When the bit originally stored in core 1 is shifted to core 2, capacitor C(a) is charged. This charge on C(a) raises the potential on the grid of indicator thyratron I(1) sufficiently to cause ignition. Therefore, ignition of I(1) indicates that the bit has advanced to core 2.

The next shift pulse advances the bit to core 3 and charges capacitor C(b) raising the grid potential on thyratron I(2) sufficiently to ignite it. The resulting reduced potential on the plate of I(2) is transmitted through capacitor C(1) to the plate of I(1) to extinguish it. This operation is repeated for each shift pulse to provide continuous indication of the bit position.

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