EP0462708A3 - Video random access memory - Google Patents
Video random access memory Download PDFInfo
- Publication number
- EP0462708A3 EP0462708A3 EP19910304736 EP91304736A EP0462708A3 EP 0462708 A3 EP0462708 A3 EP 0462708A3 EP 19910304736 EP19910304736 EP 19910304736 EP 91304736 A EP91304736 A EP 91304736A EP 0462708 A3 EP0462708 A3 EP 0462708A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- random access
- access memory
- video random
- video
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/12—Frame memory handling
- G09G2360/126—The frame memory having additional data ports, not inclusive of standard details of the output serial port of a VRAM
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54054690A | 1990-06-19 | 1990-06-19 | |
US540546 | 1990-06-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0462708A2 EP0462708A2 (en) | 1991-12-27 |
EP0462708A3 true EP0462708A3 (en) | 1992-04-22 |
EP0462708B1 EP0462708B1 (en) | 1996-11-27 |
Family
ID=24155915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910304736 Expired - Lifetime EP0462708B1 (en) | 1990-06-19 | 1991-05-24 | Video random access memory |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0462708B1 (en) |
JP (1) | JP2744854B2 (en) |
DE (1) | DE69123291D1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688032A (en) * | 1982-06-28 | 1987-08-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Image display control apparatus |
US4825411A (en) * | 1986-06-24 | 1989-04-25 | Mitsubishi Denki Kabushiki Kaisha | Dual-port memory with asynchronous control of serial data memory transfer |
US4855959A (en) * | 1986-07-04 | 1989-08-08 | Nec Corporation | Dual port memory circuit |
EP0398510A2 (en) * | 1989-05-16 | 1990-11-22 | International Business Machines Corporation | Video random access memory |
EP0427114A2 (en) * | 1989-11-07 | 1991-05-15 | Micron Technology, Inc. | High speed bit mask register architecture |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60162287A (en) * | 1984-01-23 | 1985-08-24 | 三菱電機株式会社 | Access processor for image memory |
JPH01112592A (en) * | 1987-10-26 | 1989-05-01 | Matsushita Electric Ind Co Ltd | Semiconductor storage device |
JPH0281397A (en) * | 1988-09-19 | 1990-03-22 | Hitachi Ltd | Picture memory device |
-
1991
- 1991-04-18 JP JP3112195A patent/JP2744854B2/en not_active Expired - Lifetime
- 1991-05-24 DE DE69123291T patent/DE69123291D1/en not_active Expired - Lifetime
- 1991-05-24 EP EP19910304736 patent/EP0462708B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688032A (en) * | 1982-06-28 | 1987-08-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Image display control apparatus |
US4825411A (en) * | 1986-06-24 | 1989-04-25 | Mitsubishi Denki Kabushiki Kaisha | Dual-port memory with asynchronous control of serial data memory transfer |
US4855959A (en) * | 1986-07-04 | 1989-08-08 | Nec Corporation | Dual port memory circuit |
EP0398510A2 (en) * | 1989-05-16 | 1990-11-22 | International Business Machines Corporation | Video random access memory |
EP0427114A2 (en) * | 1989-11-07 | 1991-05-15 | Micron Technology, Inc. | High speed bit mask register architecture |
Non-Patent Citations (2)
Title |
---|
WORLD PATENTS INDEX LATEST Week 8942, Derwent Publications Ltd., London, GB; AN 89-308294 ANONYMOUS: "Continuous read row addressable random access memory- has data divided into segments that can be independently loaded into read-out shift register to provide long continuous data stream". EP 91304736030 * |
WORLD PATENTS INDEX LATEST Week 8942, Derwent Publications Ltd., London, GB; AN 89-308298 ANONYMOUS: "Row addressable random access memory for video monitor storage, allows serial read-out to begin at arbitrary column location, while retaining column redundancy". * |
Also Published As
Publication number | Publication date |
---|---|
JP2744854B2 (en) | 1998-04-28 |
DE69123291D1 (en) | 1997-01-09 |
JPH04229485A (en) | 1992-08-18 |
EP0462708A2 (en) | 1991-12-27 |
EP0462708B1 (en) | 1996-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0593152A3 (en) | Random access memory design | |
EP0514017A3 (en) | Serial access memory | |
EP0487288A3 (en) | Synchronous dynamic random access memory | |
GB2225657B (en) | Random access memory system | |
AU690462B2 (en) | Optical random access memory | |
EP0481759A3 (en) | Direct access storage device | |
EP0486145A3 (en) | Direct memory access controller | |
EP0444601A3 (en) | Memory access control | |
DE69016094D1 (en) | Video random access memory. | |
EP0594347A3 (en) | Synchronous static random access memory | |
DE69016697T2 (en) | Video random access memory. | |
EP0470742A3 (en) | Dynamic random access memory | |
EP0486794A3 (en) | Dram having extended refresh time | |
GB2254487B (en) | Full CMOS type static random access memories | |
EP0447051A3 (en) | Random access memory with access on bit boundaries | |
GB9103954D0 (en) | Random access memory built-in write buffer | |
EP0499853A3 (en) | Memory access scheme | |
EP0544012A4 (en) | Serial access memory | |
GB2277390B (en) | Random access memory | |
EP0487254A3 (en) | Memory addressing device | |
KR970008600B1 (en) | Memory access system | |
EP0456394A3 (en) | Video memory array having random and serial ports | |
EP0447937A3 (en) | Image memory | |
EP0420339A3 (en) | Multi-plane random access memory system | |
AU8298491A (en) | Random access cache memory |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19911219 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB |
|
17Q | First examination report despatched |
Effective date: 19950428 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19961127 |
|
REF | Corresponds to: |
Ref document number: 69123291 Country of ref document: DE Date of ref document: 19970109 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19970228 |
|
EN | Fr: translation not filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19990428 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000524 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20000524 |