US3798632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel addressed, multiplexed-driver plasma display system and method
Assignee: OI Glass Inc
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Filing: 1972-06-02
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Granted: 1974-03-19
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Expires: 1992-06-02
Abstract
Abstract There is disclosed a plasma display system which permits the simultaneous addressing of an entire multiplex group (16-line sector) without an increase in the number of driving or mixing elements. This allows an entire sector to be addressed each 20 microseconds, rather than a single point, and reduces the full display screen update time from 5.24 seconds to 0.33 seconds. Run-length coding provides an efficient way to store and transmit pictures for the display, rather than a complete 260Kbit map. An external interface containing a simple serial/parallel shift register cascade allows the codes to be translated into a single-sector bit map of only 8K bits. Two such local buffers used alternately allow a continuous stream of runlength codes to be accepted by the interface while allowing the display to write at full speed.
Inventors
- 👤 D Liddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:42
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/288; G09G3/296; G09G3/297
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
In combination with a matrix display panel system having a plurality of matrix display points defined by selectively energizable row-column conductor pairs for entry of information to said display panel and an electrosponsive medium between said row-column pairs, and a source of serial run-length coded data bits, means for translating said serial coded data bits for a selected panel sector to parallel data bit format and storing same, means for transferring said stored data bits for each said selected panel sector to the selected panel sector to energize matrix display points therein according to said parallel data bit format.
Claim 2
Dependent Claim
99 words
In combination with a matrix display panel system having a plurality of matrix display points defined by selectively energizable row-column conductor pairs for entry of information to said display panel and an electrosponsive medium between said row-column pairs, and a source of serial run-length coded data bits, means for translating said serial coded data bits for a selected panel sector to parallel data bit format and storing same, means for transferring said stored data bits for each said selected panel sector to the selected panel sector to energize matrix display points therein according to said parallel data bit format.
Claim 3
Dependent Claim
67 words
The invention defined in claim 1 wherein said storage means includes at least a second of said means for translating, first steering logic means for alternately and sequentially directing said run-length coded data to each said translating means, respectively, and, second steering logic means for selecting individual ones of said translating means and controlling the transfer of information in said parallel data bit format to said panEl.
Claim 4
Dependent Claim
38 words
The invention defined in claim 2 wherein said run-length coded data bits are provided at a first rate of speed and said parallel data bits are supplied to said panel at a significantly different second rate of speed.
Claim 5
Dependent Claim
48 words
The invention defined in claim 1 wherein said means for translating includes a plurality of line buffer shift registers, means alternately connecting said line buffer shift registers in cascade for input of said run-length coded data and in parallel for output of said parallel data bit format, respectively.
Claim 6
Dependent Claim
118 words
In a gas discharge display panel having inherent memory, a plurality of matrix display points defined by selectively energizable row-column conductor pairs for entry of information to said display panel and gas medium between said row-column pairs, means for applying a periodic sustaining voltage to said cross points and a source of serial run-length coded data bits, means for translating said serial coded data bits for a selected panel size to parallel data bit format and storing same, means for transferring said stored data bits for each said selected panel sector to the selected panel sector and cooperatively with said sustainer voltage manipulate the discharge condition of matrix display points therein according to said parallel data bit format.
Claim 7
Dependent Claim
118 words
In a gas discharge display panel having inherent memory, a plurality of matrix display points defined by selectively energizable row-column conductor pairs for entry of information to said display panel and gas medium between said row-column pairs, means for applying a periodic sustaining voltage to said cross points and a source of serial run-length coded data bits, means for translating said serial coded data bits for a selected panel size to parallel data bit format and storing same, means for transferring said stored data bits for each said selected panel sector to the selected panel sector and cooperatively with said sustainer voltage manipulate the discharge condition of matrix display points therein according to said parallel data bit format.
Claim 8
Dependent Claim
48 words
The invention defined in claim 5 wherein said means for translating includes a plurality of serial/parallel shift registers for translating said run-length coded signals to a single sector bit map having a selected number of discrete information bits and delivering said single sector bit map to said panel.
Claim 9
Dependent Claim
140 words
In a crossed conductor matrix display panel system wherein digital display information is received in serial format, the method of entering display information to said panel comprising: Step 1. converting and storing the received serial format information to parallel format for a selected number of lines of one of the array of crossed conductors at one selected rate of speed, Step 2. converting and storing the received serial format information for a like related number of lines of the same array of crossed conductors at said one rate of speed and simultaneously at a second selected rate of speed transferring the stored parallel format information of step 1) to display on said display panel, and repeating steps 1) and 2) respectively in the above sequence at least one further time to complete entry of the desired information to said panel.
Claim 10
Dependent Claim
140 words
In a crossed conductor matrix display panel system wherein digital display information is received in serial format, the method of entering display information to said panel comprising: Step 1. converting and storing the received serial format information to parallel format for a selected number of lines of one of the array of crossed conductors at one selected rate of speed, Step 2. converting and storing the received serial format information for a like related number of lines of the same array of crossed conductors at said one rate of speed and simultaneously at a second selected rate of speed transferring the stored parallel format information of step 1) to display on said display panel, and repeating steps 1) and 2) respectively in the above sequence at least one further time to complete entry of the desired information to said panel.
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 |