Patent EP0251811A2 successfully refreshed from Google Patents.
EP0251811A2
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Flat panel display control apparatus
Assignee: Toshiba Corp
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Filing: 1987-07-03
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Granted: —
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Expires: 2007-07-03
Abstract
Abstract An apparatus for controlling a flat panel display, comprising: a video memory (3) for storing character codes and associated attribute code data relating to a CRT display, a character generator (6) connected to the video memory (3) to receive the character codes, means (1) for providing an output for the display from the output of the character generator (6) under the control of the attribute data, characterised in that the display output control means includes means for modifying the attribute data from data suitable for a CRT display to data suitable for a flat panel display, and producing a modified display output on the basis of the modified attribute data.
Inventors
- 👤 Akifumi C/O Patent Division Toshiba Corp. Inoue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:06
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/02; G09G5/028; G02; G02F; G02F1/00; G02F1/01; G02F1/23; G06; G06F; G06F3/00; G06F3/14; G06F3/147; G06F3/1475; G09G3/00; G09G3/20; G09G5/22; G09G5/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
An apparatus for controlling a flat panel display, comprising: a video memory (3) for storing character codes and associated attribute code data, a character generator (6) connected to the video memory (3) to receive the character codes, means (1) for providing an output for the display from the output of the character generator (6) under the control of the attribute data, characterised in that the display output control means includes means for modifying the attribute data, and producing a modified display output on the basis of the modified attribute data.
Claim 2
Independent Claim
90 words
An apparatus for controlling a flat panel display, comprising: a video memory (3) for storing character codes and associated attribute code data, a character generator (6) connected to the video memory (3) to receive the character codes, means (1) for providing an output for the display from the output of the character generator (6) under the control of the attribute data, characterised in that the display output control means includes means for modifying the attribute data, and producing a modified display output on the basis of the modified attribute data.
Claim 3
Independent Claim
109 words
An apparatus for controlling a flat panel display, comprising: a video memory (3) for storing character codes and associated attribute code data relating to a CRT display, a character generator (6) connected to the video memory (3) to receive the character codes, means (1) for providing an output for the display from the output of the character generator (6) under the control of the attribute data, characterised in that the display output control means includes means for modifying the attribute data from data suitable for CRT display to data suitable for a flat panel display, and producing a modified display output on the basis of the modified attribute data.
Claim 4
Independent Claim
109 words
An apparatus for controlling a flat panel display, comprising: a video memory (3) for storing character codes and associated attribute code data relating to a CRT display, a character generator (6) connected to the video memory (3) to receive the character codes, means (1) for providing an output for the display from the output of the character generator (6) under the control of the attribute data, characterised in that the display output control means includes means for modifying the attribute data from data suitable for CRT display to data suitable for a flat panel display, and producing a modified display output on the basis of the modified attribute data.
Claim 5
Dependent Claim
78 words
A flat panel display control apparatus as claimed in claim 1 or 2, wherein the display output control means has means (12) for classifying the attribute data into categories, a data store means (13) for storing data, supplementary attribute for modifying attribute data, and means for processing the output of the character generator according to attribute data as modified by the supplementary data under the control of the attribute classification means (12) and for generating the display signal.
Claim 6
Dependent Claim
50 words
A flat panel display control apparatus as claimed in claim 1, 2 or 3, wherein: a color signal is produced and there is a logic means (15) for executing an OR operation of the RGB color signal, to convert the signal into the display signal for the flat panel display.
Claim 7
Dependent Claim
33 words
A flat panel display control apparatus as claimed in claim 2, wherein the attribute classification means (12) has means for extracting the data, relating to the assignment of the foreground and background colors.
Claim 8
Dependent Claim
54 words
A flat panel display control apparatus according to claim 5, in which the attribute classification means (12) is for classifying the attribute data into a class "A" where the attribute data is for a color foreground on a black background, and class "B" where the attribute data is for color foreground or color background.
Claim 9
Dependent Claim
99 words
A flat panel display control apparatus as claimed in any of claims 1 to 6, wherein the display control means (14) carries out one or more, or a combination of the following operations on the basis of the supplementary attribute data: a) a reverse operation of the data output from the character generator according to the data which is set by said register, b) an intense processing of the data output from the character generator, c) an intense operation by reading different data from that initially read from the character generator and making the display output different from usual.
References Cited (Backward Citations)
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