EP0344623A2
Expired / Lapsed
EP
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Plasma display control system
Assignee: Toshiba Corp
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Filing: 1989-05-26
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Granted: —
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Expires: 2009-05-26
Abstract
Abstract A vertical sync signal and a back porch period following the vertical sync signal are detected by a back porch period detecting circuit (31). A display period setting circuit (32) sets the effective display period on the basis of the back porch period. A display drive means display-drives the plasma display on the basis of the display period, thereby enabling driving a plasma display at a display timing of a CRT display.
Inventors
- 👤 Hiroki C/O Intellectual Property Division Zenda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:36
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66; G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G06; G06F; G06F3/00; G06F3/14; G06F3/1423; G06F3/1431; G09G5/00; G09G5/36; G09G5/363; G09G5/366; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0286; G09G2340/00; G09G2340/04; G09G2340/0407; G09G2340/0421; G09G2360/00; G09G2360/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
A plasma display control system which is provided with a plasma display and a CRT controller, said system allowing a CRT display to be connected as an option, and said CRT controller alternatively drive-controlling the plasma display and the CRT display, characterized in that: there is provided means for driving said plasma display at a display timing of said CRT display.
Claim 2
Dependent Claim
61 words
A plasma display control system which is provided with a plasma display and a CRT controller, said system allowing a CRT display to be connected as an option, and said CRT controller alternatively drive-controlling the plasma display and the CRT display, characterized in that: there is provided means for driving said plasma display at a display timing of said CRT display.
Claim 3
Dependent Claim
98 words
A system according to claim 1, characterized in that said means for driving said plasma display comprises: back porch period detection means (31), used for display timing control of said CRT display, for detecting a vertical sync signal and a back porch period following the vertical sync signal; display period setting means (32) for setting an effective display period on the basis of the back porch period detected by said back porch period detection means; and display drive means (Fig. 2) for display-driving said plasma display responsive to the display period set by said display period setting means.
Claim 4
Dependent Claim
97 words
A system according to claim 1, characterized in that said means for driving said plasma display comprises: display control signal generating means (1), used for display timing control of said CRT display, for generating a display control signal for distinguishing a vertical blanking period including a vertical sync signal output from said CRT controller and a back porch period following the vertical sync signal from an effective display period; and display drive means (Fig. 2) for driving display electrodes of said plasma display responsive to the display control signal generated by said display control signal generating means.
Claim 5
Dependent Claim
28 words
A system according to claim 2, characterized in that said cathode ray tube (CRT) controller generates different timing signals in correspondence with different display resolutions to display data.
Claim 6
Dependent Claim
28 words
A system according to claim 3, characterized in that said cathode ray tube (CRT) controller generates different timing signals in correspondence with different display resolutions to display data.
Claim 7
Dependent Claim
51 words
A display control method for a plasma display included in a CRT controller, which allows a CRT display to be connected as an option, for alternatively drive-controlling the plasma display and the CRT display, characterized by the step of driving said plasma display at a display timing of a CRT display.
Claim 8
Dependent Claim
51 words
A display control method for a plasma display included in a CRT controller, which allows a CRT display to be connected as an option, for alternatively drive-controlling the plasma display and the CRT display, characterized by the step of driving said plasma display at a display timing of a CRT display.
Claim 9
Dependent Claim
62 words
A method according to claim 6, characterized in that said driving step comprises: detecting a vertical sync signal and a back porch period following the vertical sync signal so as to perform display timing control of said CRT display; setting an effective display period on the basis of the back porch period; and display-driving said plasma display responsive to the display period.
Claim 10
Dependent Claim
73 words
A method according to claim 6, characterized in that said driving step comprises: generating a display control signal for distinguishing a vertical blanking period including a vertical sync signal output from said CRT controller and a back porch period following the vertical sync signal from an effective display period to perform display timing control of said CRT display; and driving display electrodes of said plasma display responsive to the generated display control signal.
Claim 11
Dependent Claim
25 words
A method according to claim 7, characterized in that said CRT controller generates different timing signals in correspondence with different display resolutions to display data.
Claim 12
Dependent Claim
28 words
A method accordance to claim 8, characterized in that said cathode ray tube (CRT) controller generates different timing signals in correspondence with different display resolutions to display data.
References Cited (Backward Citations)
No citation records indexed.
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