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Class Information
Number: 345/531
Name: Computer graphics processing, operator interface processing, and selective visual display systems > Computer graphics display memory system > Graphic display memory controller
Description: Subject matter including means for controlling the read/write operations of the graphics display memory.










Sub-classes under this class:

Class Number Class Name Patents
345/534 Memory access timing signals 204
345/535 Memory arbitration 180
345/532 Plural memory controllers 117
345/533 Using different access modes 111


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
5392391 High performance graphics applications controller Feb. 21, 1995
5388208 Gerbil wheel memory Feb. 7, 1995
5379073 Still image signal processing device Jan. 3, 1995
5379052 VGA and EGA video controller apparatus using shared common video memory Jan. 3, 1995
5375205 Method and apparatus for controlling the buffer scan in a printer controller Dec. 20, 1994
5367632 Flexible memory controller for graphics applications Nov. 22, 1994
5357267 Image information control apparatus and display system Oct. 18, 1994
5353405 Method of controlling image memory system for non-interlace/interlace conversion Oct. 4, 1994
5321811 Information processing system and apparatus Jun. 14, 1994
5301272 Method and apparatus for address space aliasing to identify pixel types Apr. 5, 1994
5299300 Interpolation processing of digital map imagery data Mar. 29, 1994
5291582 Apparatus for performing direct memory access with stride Mar. 1, 1994
5285193 Data base system Feb. 8, 1994
5276831 Memory cartridge having a multi-memory controller with memory bank switching capabilities and data processing apparatus Jan. 4, 1994
5276780 Filing system Jan. 4, 1994
5265201 Master-slave processor human interface system Nov. 23, 1993
5251296 Methods and apparatus for generating arbitrarily addressed, arbitrarily shaped tiles in computer graphics systems Oct. 5, 1993
5241642 Image memory controller for controlling multiple memories and method of operation Aug. 31, 1993
5233331 Inking buffer for flat-panel display controllers Aug. 3, 1993
5233690 Video graphics display memory swizzle logic and expansion circuit and method Aug. 3, 1993
5226119 Graphic display controller Jul. 6, 1993
5202962 Graphic processor suitable for graphic data transfer and conversion processes Apr. 13, 1993
5198804 Video memory with write mask from vector or direct input Mar. 30, 1993
5185859 Graphics processor, a graphics computer system, and a process of masking selected bits Feb. 9, 1993
5161220 Data write control circuit having word length conversion function Nov. 3, 1992
5146558 Data processing system and apparatus Sep. 8, 1992
5113487 Memory circuit with logic functions May. 12, 1992
5109348 High speed image processing computer Apr. 28, 1992
5107251 Method and apparatus for detecting cursors Apr. 21, 1992
5099231 Image output system for outputting multi-level information stored as transition points Mar. 24, 1992
5068650 Memory system for high definition television display Nov. 26, 1991
5067097 Image memory controller Nov. 19, 1991
5056041 Data processing apparatus with improved bit masking capability Oct. 8, 1991
5027290 Computer workstation including video update arrangement Jun. 25, 1991
5021977 Image data read out system in a digital image processing system Jun. 4, 1991
4975857 Graphic processing apparatus utilizing improved data transfer to reduce memory size Dec. 4, 1990
4970636 Memory interface controller Nov. 13, 1990
4970501 Method for writing data into an image repetition memory of a data display terminal Nov. 13, 1990
4965750 Graphic processor suitable for graphic data transfer and conversion processes Oct. 23, 1990
4943937 Apparatus for processing images having desired gray levels including a three-dimensional frame memory Jul. 24, 1990
4943801 Graphics display controller equipped with boundary searching circuit Jul. 24, 1990
4941107 Image data processing apparatus Jul. 10, 1990
4933877 Bit map image processing apparatus having hardware window function Jun. 12, 1990
4933879 Multi-plane video RAM Jun. 12, 1990
4931785 Display apparatus Jun. 5, 1990
4912771 Image memory apparatus Mar. 27, 1990
4896146 Color image processor Jan. 23, 1990
4887224 Image data processing apparatus capable of high-speed data encoding and/or decoding Dec. 12, 1989
4882710 FIFO memory including dynamic memory elements Nov. 21, 1989
4882578 Character display device Nov. 21, 1989

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