Patent US3798501A successfully refreshed from Google Patents.
US3798501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic conditioning of gas discharge display/memory device
Assignee: OI Glass Inc
•
Filing: 1972-01-14
•
Granted: 1974-03-19
•
Expires: 1992-01-14
Abstract
Abstract There is disclosed the improved electronic conditioning of a gas discharge display/memory panel. In the addressing of a row-column gas discharge display/memory panel which comprises a discharge cell matrix wherein one or more discharge cells are to be addressed along a common row or column, the improvement wherein the border of the panel matrix comprises a plurality of pilot cells and wherein the to-be-addressed cells are electronically conditioned before addressing by applying a conditioning voltage pulse to the common row or column of to-be-addressed cells and then providing a low impedance electrical path between the conditioned row or column of cells and all of the rows or columns of cells orthogonal to the conditioned row or column so as to return the conditioned cells to a neutral state, the magnitude of the conditioning pulse being sufficient to cause discharge of cells in the off-state, but not sufficient to cause discharge of cells in the on-state.
Inventors
- 👤 J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:01
CPC Classifications
H; H01; H01J; H01J11/00; H01J11/10; H01J11/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
In a process for operating a multiple gaseous discharge display/memory panel containing an ionizable gaseous medium and having a plurality of discharge cells formed by a series of transversely positioned electrodes, the discharge cells being geometrically arranged in a matrix of row and columns, and wherein one or more cells are to-be-addressed are located along a selected common electrode locating said to-be-addressed cells and wherein the border of the panel matrix comprises a plurality of pilot cElls, the improvement which comprises applying a conditioning voltage pulse only to said selected common electrode locating said tobe-addressed cells and then providing a low impedance electrical path between the conditioned cells and all of the cells orthogonal to the conditioned cells so as to return the conditioned cells to a neutral state, the magnitude of the conditioning pulse being sufficient to cause discharge of cells in the off-state, but not sufficient to cause discharge of cells in the on-state.
Claim 2
Dependent Claim
156 words
In a process for operating a multiple gaseous discharge display/memory panel containing an ionizable gaseous medium and having a plurality of discharge cells formed by a series of transversely positioned electrodes, the discharge cells being geometrically arranged in a matrix of row and columns, and wherein one or more cells are to-be-addressed are located along a selected common electrode locating said to-be-addressed cells and wherein the border of the panel matrix comprises a plurality of pilot cElls, the improvement which comprises applying a conditioning voltage pulse only to said selected common electrode locating said tobe-addressed cells and then providing a low impedance electrical path between the conditioned cells and all of the cells orthogonal to the conditioned cells so as to return the conditioned cells to a neutral state, the magnitude of the conditioning pulse being sufficient to cause discharge of cells in the off-state, but not sufficient to cause discharge of cells in the on-state.
Claim 3
Dependent Claim
15 words
The invention of claim 1 wherein the gaseous medium comprises at least one rare gas.
Claim 4
Dependent Claim
23 words
The invention of claim 1 wherein the gas medium comprises at least two rare gases selected from neon, argon, radon, krypton, and xenon.
Claim 5
Dependent Claim
22 words
The invention of claim 3 wherein the gas medium contains beneficial amounts of at least one member selected from helium and mercury.
Claim 6
Dependent Claim
169 words
In a multiple gaseous discharge display/memory panel containing an ionizable gaseous medium and having a plurality of discharge cells formed by a series of transversely positioned electrodes, the discharge cells being geometrically arranged in a matrix of rows and columns, and wherein electrical circuitry means are provided for addressing one or more cells along a common, electrode locating a selected sequence of cells, and wherein the border of the panel matrix comprises a plurality of pilot cells, the improvement wherein only each matrix common electrode locating a selected sequence of said to-be-addressed cells is connected to a conditioning voltage pulse source having a magnitude sufficient to cause discharge of cells in the off-state, but not sufficient to cause discharge of cell in the on-state, and wherein the electrical circuitry includes switching means for providing a low impedance electrical path between the selected sequence of conditioned cells and all of the cells orthogonal to the conditioned sequence of cells so as to return the conditioned cells to a netural state.
Claim 7
Dependent Claim
169 words
In a multiple gaseous discharge display/memory panel containing an ionizable gaseous medium and having a plurality of discharge cells formed by a series of transversely positioned electrodes, the discharge cells being geometrically arranged in a matrix of rows and columns, and wherein electrical circuitry means are provided for addressing one or more cells along a common, electrode locating a selected sequence of cells, and wherein the border of the panel matrix comprises a plurality of pilot cells, the improvement wherein only each matrix common electrode locating a selected sequence of said to-be-addressed cells is connected to a conditioning voltage pulse source having a magnitude sufficient to cause discharge of cells in the off-state, but not sufficient to cause discharge of cell in the on-state, and wherein the electrical circuitry includes switching means for providing a low impedance electrical path between the selected sequence of conditioned cells and all of the cells orthogonal to the conditioned sequence of cells so as to return the conditioned cells to a netural state.
Claim 8
Dependent Claim
15 words
The invention of claim 5 wherein the gaseous medium comprises at least one rare gas.
Claim 9
Dependent Claim
23 words
The invention of claim 5 wherein the gaseous medium comprises at least two rare gases selected from neon, argon, radon, krypton, and xenon.
Claim 10
Dependent Claim
22 words
The invention of claim 7 wherein the gas medium contains beneficial amounts of at least one member selected from helium and mercury.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |