Browse Prior Art Database

Modular Read Only Store

IP.com Disclosure Number: IPCOM000095650D
Original Publication Date: 1964-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Taub, DM: AUTHOR

Abstract

Capacitively coupling short sense conductors of each module to a single long sense coupling conductor for the entire array simplifies assembly of read only storage modules into large arrays. Short sense conductors on each module are positioned parallel and close to the related sense coupling conductors so that the capacitance of the conductors themselves provides a path for output signals.

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Modular Read Only Store

Capacitively coupling short sense conductors of each module to a single long sense coupling conductor for the entire array simplifies assembly of read only storage modules into large arrays. Short sense conductors on each module are positioned parallel and close to the related sense coupling conductors so that the capacitance of the conductors themselves provides a path for output signals.

A capacitor storage module can be made up of a set of drive conductors 1 ... 3 having enlarged lands 4 ... 7 which serve as the plates of storage capacitors. The drive conductors 1, 2 and 3 are mounted on a dielectric sheet 8, the other side of which carries short sense conductors 9 and 10. These are at right angles to drive conductors 1... 3. An effective capacitor read only store requires connections for the drive conductors and for sense conductors 9 and 10 of each module. Where the array is large, it becomes difficult to make the required ohmic connections between modules.

Capacitively coupling each sense conductor 9 and 10 to a physically parallel sense coupling conductor 11 and 12, mounted on dielectric sheet 13, eliminates the need for ohmic connections between modules. Each sense conductor is parallel and rather closely spaced along its entire length to sense coupling conductors 11 and 12. Each capacitive storage element thus connects via its own capacitance, shown as 14 for element 7, through sense conductor 9 and the capacitance 15 between sens...