US4835530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphics display device
Assignee: Mitsubishi Electric Corp
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Filing: 1987-03-16
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Granted: 1989-05-30
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Expires: 2007-03-16
Abstract
Abstract Disclosed is a graphics display device comprising a graphics control board provided between a computer for outputting an output command of a picture image (hereinafter referred to as an image-depiction command) to be displayed on a display device such as a cathode ray tube (CRT) and said display device to process the image-depiction command from the computer by signal conversion processing and to control a display output when the display device displays a picture image, the graphics control board being divided into two boards of a signal conversion board provided within a housing case in which the computer is installed to process the image-depiction command from the computer by signal conversion processing and a display output board for controlling a supply of an output required to display the picture image by the display device on the basis of the image-depiction command.
Inventors
- 👤 Shunji Morita
- 👤 Takahiko Yamamuro
- 👤 Nobuo Fukushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:25
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/18; G06F1/181; G06F3/00; G06F3/14; G06F3/153
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
A graphics display device comprising a display device; a computer for processing image-depiction information and having a bus for receiving the image-depiction information which corresponds to a picture image to be displayed by the display device; and graphics control means for inputting the image-depiction information on the bus of said computer to convert said image depiction information into a display signal suitable for operating the display device to display the picture image on said display device; a rotatable swivel stand on said computer for supporting said display device; said graphics control means including two boards comprising a signal conversion board mounted in said computer and connected to said computer bus for converting said image-depiction information into a standard signal, a display output board mounted in said swivel stand and connected to said display device for responding to the standard signal to generate the display signal, and a cable connecting said two boards together to supply the standard signal to the display output board.
Claim 2
Dependent Claim
163 words
A graphics display device comprising a display device; a computer for processing image-depiction information and having a bus for receiving the image-depiction information which corresponds to a picture image to be displayed by the display device; and graphics control means for inputting the image-depiction information on the bus of said computer to convert said image depiction information into a display signal suitable for operating the display device to display the picture image on said display device; a rotatable swivel stand on said computer for supporting said display device; said graphics control means including two boards comprising a signal conversion board mounted in said computer and connected to said computer bus for converting said image-depiction information into a standard signal, a display output board mounted in said swivel stand and connected to said display device for responding to the standard signal to generate the display signal, and a cable connecting said two boards together to supply the standard signal to the display output board.
Claim 3
Dependent Claim
69 words
A graphics display device according to claim 1, wherein said computer has a computer body with an open-top recess and bus connectors exposed in the bottom of the recess for connecting boards to the computer bus, and said signal conversion board is installed within the open-top recess provided in said computer body and connected in a one touch manner to one of said bus connectors provided in said recess.
Claim 4
Dependent Claim
47 words
A graphics display device according to claim 1, wherein said computer includes a bus connector, said signal conversion board is connected through said bus connector to the computer bus, and there is included a second connection cable to connect said display output board to said display device.
Claim 5
Dependent Claim
119 words
A graphics display device according to claim 1, wherein said swivel stand comprises a swivel stand base formed from an open-top flat box having said display output board installed therein and having a power source device for converting an external alternating current power into a suitable power for operating the display output board, and a swivel stand cover having a top plate for closing the open top of said swivel stand base, said top plate having formed a raised portion on the upper surface thereof and into which is fitted a fitting recess of a bottom surface of said display device, and said raised portion being provided with a swivel mechanism by which said display device may be rotated.
Claim 6
Dependent Claim
24 words
A graphics display device according to claim 4, wherein said display output board is horizontally installed on the bottom of the swivel stand base.
References Cited (Backward Citations)
US4542872A
Cited
US4626837A
Cited
US4640485A
Cited
US4621782A
Cited
US4684089A
Cited
US4570892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-29 | 1992-11-28 | 1993-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-29 | 1996-11-28 | 1997-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-29 | 2000-11-28 | 2001-05-30 | $7700.00 | Window Closed / Lapsed |