US Patent No: 5,751,979

Number of patents in Portfolio can not be more than 2000

Video hardware for protected, multiprocessing systems

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Abstract

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A video controller that enables applications operating in a protected, multiprocessing system to update a video memory at native speeds. In this system and method, each application is assigned a separate physical address region that identifies an alias of an application's window in the video memory. The separate physical address regions provide an addressing mechanism for an application to identify a referenced set of pixels sought to be accessed. A window mapping function within the video controller that performs only those portions of a video memory access request that references pixels contained within a visible portion of an application's window as defined by priority, size and position information in a control structure.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
UNISYS CORPORATIONBLUE BELL, PA1322

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McCrory, Duane J Malvern, PA 19 471

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (4)
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HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (4)
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BURROUGHS CORPORATION (1)
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SAMSUNG ELECTRONICS CO., LTD. (1)
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INGERSOLL-RAND COMPANY (1)
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SUN MICROSYSTEMS, INC. (2)
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E-M TECHNOLOGY, LNC. (1)
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NEC CORPORATION (1)
* 4,594,587 Character oriented RAM mapping system and method therefor 28 1983
 
E-SYSTEMS, INC. (1)
* 4,845,640 High-speed dual mode graphics memory 16 1987
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
* 4,882,683 Cellular addressing permutation bit map raster graphics architecture 87 1987
 
Reflection Technology, Inc. (1)
* 5,136,695 Apparatus and method for updating a remote video display from a host computer 68 1989
 
KABUSHIKI KAISHA TOSHIBA (1)
* 4,933,877 Bit map image processing apparatus having hardware window function 13 1988
 
Quarterdeck Office Systems, Inc. (1)
* 4,823,108 Display system and memory architecture and method for displaying images in windows on a video display 107 1988
 
TEKTRONIX, INC. (1)
* 5,185,599 Local display bus architecture and communications method for Raster display 78 1990
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
* 2006/0203,001 Clipping of media data transmitted in a network 5 2003
 
QUALCOMM INCORPORATED (5)
* 6,731,295 Graphics display system with window descriptors 8 1999
6,661,422 Video and graphics system with MPEG specific data transfer commands 65 2000
7,256,790 Video and graphics system with MPEG specific data transfer commands 23 2003
7,598,962 Graphics display system with window descriptors 2 2004
* 2004/0150,652 Graphics display system with window descriptors 1 2004
 
CHIRAZ, ROBERT CARMINE (1)
* 6,411,302 Method and apparatus for addressing multiple frame buffers 81 1999
 
CALLAHAN CELLULAR L.L.C. (2)
* 6,912,615 Control means for burst access control 18 2002
* 2003/0074,517 Control means for burst access control 0 2002
 
LU, YANG (1)
* 7,830,388 Methods and apparatus of sharing graphics data of multiple instances of interactive application 21 2007
 
LINKEDIN CORPORATION (1)
* 6,473,103 Conveying urgency via a control 13 1999
 
ROZMAN, MORGAN LEE (6)
7,484,247 System and method for protecting a computer system from malicious software 36 2004
* RE43528 System and method for protecting a computer system from malicious software 2 2010
* RE43500 System and method for protecting a computer system from malicious software 3 2010
* RE43103 System and method for protecting a computer system from malicious software 11 2010
* RE43529 System and method for protecting a computer system from malicious software 3 2010
* RE43987 System and method for protecting a computer system from malicious software 0 2011
 
BANK OF AMERICA, N.A., AS SUCCESSOR AGENT (5)
* 2004/0246,257 Graphics accelerator 6 2004
* 2005/0044,175 Transport processor 6 2004
* 2007/0030,276 Video and graphics system with parallel processing of graphics windows 5 2006
* 2006/0268,012 Video, audio and graphics decode, composite and display system 12 2006
* 2007/0285,440 GRAPHICS DISPLAY SYSTEM WITH VIDEO SYNCHRONIZATION FEATURE 13 2007
 
AMERICAN MEGATRENDS, INC. (1)
* 7,868,896 Method, apparatus, and computer-readable medium for utilizing an alternate video buffer for console redirection in a headless computer system 0 2005
 
KINGLITE HOLDINGS INC. (1)
* 6,222,562 Fast processed screen image 24 1998
 
FUJITSU LIMITED (1)
* 7,228,322 Data management apparatus of switching system 0 2000
 
BROADCOM CORPORATION (63)
6,927,783 Graphics display system with anti-aliased text and graphics feature 8 1999
6,744,472 Graphics display system with video synchronization feature 28 1999
6,738,072 Graphics display system with anti-flutter filtering and vertical scaling feature 15 1999
6,700,588 Apparatus and method for blending graphics and video surfaces 68 1999
6,661,427 Graphics display system with video scaler 28 1999
6,630,945 Graphics display system with graphics window control mechanism 12 1999
6,608,630 Graphics display system with line buffer control scheme 10 1999
6,570,579 Graphics display system 71 1999
7,446,774 Video and graphics system with an integrated system bridge controller 19 2000
6,975,324 Video and graphics system with a video transport processor 67 2000
6,853,385 Video, audio and graphics decode, composite and display system 88 2000
6,768,774 Video and graphics system with video scaling 39 2000
6,636,222 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 72 2000
6,573,905 Video and graphics system with parallel processing of graphics windows 119 2000
6,538,656 Video and graphics system with a data transport processor 160 2000
6,529,935 Graphics display system with unified memory architecture 5 2000
* 2002/0106,018 Single chip set-top box system 44 2001
6,819,330 Graphics display System with color look-up table loading mechanism 1 2001
6,781,601 Transport processor 76 2002
6,721,837 Graphics display system with unified memory architecture 8 2002
8,913,667 Video decoding system having a programmable variable-length decoder 0 2003
* 2004/0028,141 Video decoding system having a programmable variable-length decoder 24 2003
6,870,538 Video and graphics system with parallel processing of graphics windows 20 2003
7,057,622 Graphics display system with line buffer control scheme 1 2003
7,277,099 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 7 2003
* 2005/0012,759 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 44 2003
7,530,027 Graphics display system with graphics window control mechanism 5 2003
7,538,783 Graphics display system with video scaler 7 2003
7,002,602 Apparatus and method for blending graphics and video surfaces 7 2003
* 2004/0130,558 Apparatus and method for blending graphics and video surfaces 1 2003
9,077,997 Graphics display system with unified memory architecture 0 2004
7,015,928 Graphics display system with color look-up table loading mechanism 1 2004
* 2004/0169,660 Graphics display system with color look-up table loading mechanism 3 2004
6,879,330 Graphics display system with anti-flutter filtering and vertical scaling feature 3 2004
* 2004/0207,644 Graphics display system with anti-flutter filtering and vertical scaling feature 1 2004
7,991,049 Video and graphics system with video scaling 5 2004
* 2004/0208,245 Video and graphics system with video scaling 17 2004
7,227,582 Graphics display system with video synchronization feature 3 2004
7,365,752 Video and graphics system with a single-port RAM 14 2004
8,063,916 Graphics layer reduction for video composition 1 2004
7,110,006 Video, audio and graphics decode, composite and display system 42 2004
* 2005/0122,335 Video, audio and graphics decode, composite and display system 39 2004
7,071,944 Video and graphics system with parallel processing of graphics windows 7 2005
* 2005/0122,341 Video and graphics system with parallel processing of graphics windows 25 2005
* 2005/0168,480 Graphics display system with anti-flutter filtering and vertical and vertical scaling feature 1 2005
7,098,930 Graphics display system with anti-flutter filtering and vertical scaling feature 6 2005
7,184,058 Graphics display system with anti-aliased text and graphics feature 4 2005
7,667,710 Graphics display system with line buffer control scheme 2 2006
7,659,900 Video and graphics system with parallel processing of graphics windows 5 2006
7,667,715 Video, audio and graphics decode, composite and display system 16 2006
7,310,104 Graphics display system with anti-flutter filtering and vertical scaling feature 5 2006
7,746,354 Graphics display system with anti-aliased text and graphics feature 0 2006
7,545,438 Graphics display system with video synchronization feature 2 2007
7,848,430 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 12 2007
7,554,553 Graphics display system with anti-flutter filtering and vertical scaling feature 4 2007
7,554,562 Graphics display system with anti-flutter filtering and vertical scaling feature 2 2007
7,920,151 Graphics display system with video scaler 9 2009
8,390,635 Graphics accelerator 0 2010
* 2011/0193,868 GRAPHICS ACCELERATOR 1 2010
8,493,415 Graphics display system with video scaler 0 2011
8,199,154 Low resolution graphics mode support using window descriptors 1 2011
8,848,792 Video and graphics system with video scaling 0 2011
9,111,369 Graphics accelerator 0 2013
 
SCIMED LIFE SYSTEMS, INC. (1)
7,911,483 Graphics display system with window soft horizontal scrolling mechanism 2 1999
 
CSR TECHNOLOGY INC. (1)
* 6,466,220 Graphics engine architecture 64 1999
* Cited By Examiner