Data General Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 37410
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 4152
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 298
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
  
 
H03K PULSE TECHNIQUE 2129
 
  
 
H04J MULTIPLEX COMMUNICATION 2123
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2283
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6766519 Generic software interface for hardware environments having executing code registers itself and the code for a next suboperationMar 26, 99Jul 20, 04[G06F]
6480882 Method for control and communication between computer systems linked through a networkJun 25, 99Nov 12, 02[G06F]
6392872 Computer systemMar 15, 99May 21, 02[H05K]
6195706 Methods and apparatus for determining, verifying, and rediscovering network IP addressesJul 07, 98Feb 27, 01[G06F]
6181552 Computer assemblyOct 27, 98Jan 30, 01[G06F]
6144552 Handheld computer systemApr 26, 99Nov 07, 00[G02F, H05K]
6081875 Apparatus and method for backup of a disk storage systemMay 19, 97Jun 27, 00[G06F]
6061753 Apparatus and method of accessing target devices across a bus utilizing initiator identifiersJan 27, 98May 09, 00[G06F]
6038595 Information/communication device for network based services and a system for use of information/communication based servicesMar 02, 98Mar 14, 00[G06F]
6026461 Bus arbitration system for multiprocessor architectureDec 09, 98Feb 15, 00[G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6034516 Soft-start switch with voltage regulation and current limitingWithdrawnJul 11, 97Mar 07, 00[]
5343357 Disk array subsystem for use in a data processing systemExpiredJun 24, 93Aug 30, 94[H01R, H05K]
D348259 Combined front panel and handle for a disk drive carrierExpiredOct 02, 92Jun 28, 94[]
5301280 Capability based communication protocolExpiredOct 02, 89Apr 05, 94[G06F]
D344072 Data processing equipment cabinetExpiredOct 02, 92Feb 08, 94[]
5235685 Interface bus with independent data, command and direct control sections for parallel transfer of information between host and intelligent storageExpiredMay 11, 89Aug 10, 93[G06F]
5172379 High performance memory systemExpiredFeb 24, 89Dec 15, 92[G06F]
5155818 Unconditional wide branch instruction accelerationExpiredSep 28, 88Oct 13, 92[G06F]
5146584 Keyboard interface system allowing a synchronous keyboard to communicate with a host processor asynchronously by manipulating the keyboard clock's stateExpiredFeb 27, 89Sep 08, 92[G06F]
D328286 Data processing equipment cabinet or similar articleExpiredMar 27, 90Jul 28, 92[]
5095404 Arrangement for mounting and cooling high density tab IC chipsExpiredFeb 26, 90Mar 10, 92[H05K]
5070475 Floating point unit interfaceExpiredNov 14, 85Dec 03, 91[G06F]
5051982 Methods and apparatus for implementing switched virtual connections (SVCs) in a digital communications switching systemExpiredJul 27, 89Sep 24, 91[H04Q, H04J]
5051984 Methods for flexibly allocating bandwidth for a point-to-point serial, bidirectional communication pathExpiredJul 30, 90Sep 24, 91[H04J]
5027344 Integrated office controller (IOC)ExpiredJun 28, 89Jun 25, 91[H04J]
5020081 Communication link interface with different clock rate toleranceExpiredSep 19, 89May 28, 91[H04L]
5016162 Contention revolution in a digital computer systemExpiredMar 30, 88May 14, 91[G06F]
4987530 Input/output controller for a data processing systemExpiredNov 15, 85Jan 22, 91[G06F]
4987570 Methods and apparatus for performing time interleaved multiplexed rate adaptation for sub-rate channels in a digital data communication systemExpiredFeb 09, 89Jan 22, 91[H04J]
4979141 Technique for providing a sign/magnitude subtraction operation in a floating point computation unitExpiredSep 28, 88Dec 18, 90[G06F]

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