US3797011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operation of gaseous discharge display/memory panels
Assignee: OI Glass Inc
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Filing: 1972-05-08
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Granted: 1974-03-12
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Expires: 1992-05-08
Abstract
Abstract A gas discharge display/memory panel uses operating control pulses in the saturation mode. The operating control pulses include discharge initiating and/or discharge terminating pulses, each selected pulse being of a magnitude such that every discharge associated with each selected pulse occurs in the saturation mode and the effects of panel non-uniformity are minimized.
Inventors
- 👤 W Petty
- 👤 D Liddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:39
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/288; G09G3/291; G09G3/292; G09G3/2927; G09G3/293; G09G2320/00; G09G2320/02; G09G2320/0233
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
In a process for operating a multiple gaseous discharge display/memory panel wherein an addressing signal is applied to the panel, the improvement wherein a portion of the addressing signal is of a magnitude to cause addressed sites in said panel to be in the saturation mode such that panel non-uniformities become substantially irrelevant and have no effect on panel behavior and such portion has a square waveform.
Claim 2
Dependent Claim
67 words
In a process for operating a multiple gaseous discharge display/memory panel wherein an addressing signal is applied to the panel, the improvement wherein a portion of the addressing signal is of a magnitude to cause addressed sites in said panel to be in the saturation mode such that panel non-uniformities become substantially irrelevant and have no effect on panel behavior and such portion has a square waveform.
Claim 3
Dependent Claim
101 words
In a gas discharge panel apparatus comprising the combination of a gaseous discharge panel, said panel having a pair of transverse conductor arrays at least one of which is non-conductively coupled to a gas discharge medium and having an internal memory constituted by stored charges, said transverse conductor arrays defining multiple discharge sites in said panel, and circuit means supplying operating potentials to said panel, including sustaining potentials and discharge initiating pulse potentials which are of a magnitude such that all said discharge sites in said panel reach the same potential when fired and every discharge occurs in the saturation mode.
Claim 4
Dependent Claim
101 words
In a gas discharge panel apparatus comprising the combination of a gaseous discharge panel, said panel having a pair of transverse conductor arrays at least one of which is non-conductively coupled to a gas discharge medium and having an internal memory constituted by stored charges, said transverse conductor arrays defining multiple discharge sites in said panel, and circuit means supplying operating potentials to said panel, including sustaining potentials and discharge initiating pulse potentials which are of a magnitude such that all said discharge sites in said panel reach the same potential when fired and every discharge occurs in the saturation mode.
Claim 5
Dependent Claim
54 words
Apparatus as defined in claim 2 wherein said saturation mode is defined the section of the VC versus VW characteristic curve wherein the applied VC voltage is at least equal to or greater than the saturation voltage (VSAT) for the sustaining signal discharge plus the discharges associated with a discharge condition manipulating pulse voltage.
Claim 6
Dependent Claim
20 words
The invention defined in claim 3 wherein the discharge condition manipulating pulse voltage is the discharge initiating (write) pulse voltage.
Claim 7
Dependent Claim
20 words
The invention defined in claim 3 wherein the discharge condition manipulating pulse voltage is the discharge terminating (erase) pulse voltage.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |