Assignee
DATA GENERAL CORP
US·307 granted patents·12,116 citations·filing 1973–1999
Top patents by PatentIndex Score
307 records- 0199US4525780AData processing system having a memory using object-based information and a protection scheme for determining access rights to such informationDATA GENERAL CORP·Filed 1984·Granted Jun 25, 1985·357 cites·17 claims
- 0298US5745778AApparatus and method for improved CPU affinity in a multiprocessor systemDATA GENERAL CORP·Filed 1994·Granted Apr 28, 1998·551 cites·32 claims
- 0397US5247427ADisk array subsystem having elongated T-shaped guides for use in a data processing systemDATA GENERAL CORP·Filed 1992·Granted Sep 21, 1993·126 cites·14 claims
- 0497US4825403AApparatus guaranteeing that a controller in a disk drive system receives at least some data from an invalid track sectorDATA GENERAL CORP·Filed 1986·Granted Apr 25, 1989·189 cites·6 claims
- 0595US4920483AA computer memory for accessing any word-sized group of contiguous bitsDATA GENERAL CORP·Filed 1985·Granted Apr 24, 1990·224 cites·6 claims
- 0695US4056642AMethod of fabricating metal-semiconductor interfacesDATA GENERAL CORP·Filed 1976·Granted Nov 1, 1977·117 cites·4 claims
- 0794USD288566SPortable computer or similar articleDATA GENERAL CORP·Filed 1984·Granted Mar 3, 1987·50 cites·1 claims
- 0894US4513368ADigital data processing system having object-based logical memory addressing and self-structuring modular memoryDATA GENERAL CORP·Filed 1981·Granted Apr 23, 1985·122 cites·2 claims
- 0994US4445177ADigital data processing system utilizing a unique arithmetic logic unit for handling uniquely identifiable addresses for operands and instructionsDATA GENERAL CORP·Filed 1981·Granted Apr 24, 1984·146 cites·3 claims
- 1094US4356545AApparatus for monitoring and/or controlling the operations of a computer from a remote locationDATA GENERAL CORP·Filed 1979·Granted Oct 26, 1982·108 cites·12 claims
- 1193US5305326AHigh availability disk arraysDATA GENERAL CORP·Filed 1992·Granted Apr 19, 1994·200 cites·2 claims
- 1293US4772812ATri-state output buffer circuit including a capacitor and dynamic depletion mode switching deviceDATA GENERAL CORP·Filed 1981·Granted Sep 20, 1988·69 cites·3 claims
- 1393US4636748ACharge pump for use in a phase-locked loopDATA GENERAL CORP·Filed 1985·Granted Jan 13, 1987·69 cites·10 claims
- 1493US4493027AMethod of performing a call operation in a digital data processing system having microcode call and return operationsDATA GENERAL CORP·Filed 1981·Granted Jan 8, 1985·148 cites·1 claims
- 1593US4229699AMultiple clock selection systemDATA GENERAL CORP·Filed 1978·Granted Oct 21, 1980·73 cites·10 claims
- 1693US4069462APhase-locked loopsDATA GENERAL CORP·Filed 1976·Granted Jan 17, 1978·67 cites·8 claims
- 1792US5859966ASecurity system for computer systemsDATA GENERAL CORP·Filed 1995·Granted Jan 12, 1999·385 cites·13 claims
- 1892US4742478AHousing for a portable computerDATA GENERAL CORP·Filed 1984·Granted May 3, 1988·143 cites·16 claims
- 1991US6026461ABus arbitration system for multiprocessor architectureDATA GENERAL CORP·Filed 1998·Granted Feb 15, 2000·190 cites·8 claims
- 2091US5887146ASymmetric multiprocessing computer with non-uniform memory access architectureDATA GENERAL CORP·Filed 1996·Granted Mar 23, 1999·190 cites·18 claims
- 2190US6324692B1Upgrade of a programDATA GENERAL CORP·Filed 1999·Granted Nov 27, 2001·213 cites·30 claims
- 2290US4514800ADigital computer system including apparatus for resolving names representing data items and capable of executing instructions belonging to general instruction setsDATA GENERAL CORP·Filed 1981·Granted Apr 30, 1985·104 cites·14 claims
- 2389US5922077AFail-over switching systemDATA GENERAL CORP·Filed 1996·Granted Jul 13, 1999·142 cites·33 claims
- 2489US5287537ADistributed processing system having plural computers each using identical retaining information to identify another computer for executing a received commandDATA GENERAL CORP·Filed 1992·Granted Feb 15, 1994·205 cites·2 claims
- 2589US4455602ADigital data processing system having an I/O means using unique address providing and access priority control techniquesDATA GENERAL CORP·Filed 1981·Granted Jun 19, 1984·143 cites·7 claims
- 2689US4394736AData processing system utilizing a unique two-level microcoding technique for forming microinstructionsDATA GENERAL CORP·Filed 1980·Granted Jul 19, 1983·41 cites·10 claims
- 2789US3978318AHand-operated scannerDATA GENERAL CORP·Filed 1975·Granted Aug 31, 1976·68 cites·8 claims
- 2888US5535381AApparatus and method for copying and restoring disk filesDATA GENERAL CORP·Filed 1993·Granted Jul 9, 1996·238 cites·9 claims
- 2988US4644535APCM channel multiplexer/demultiplexerDATA GENERAL CORP·Filed 1984·Granted Feb 17, 1987·87 cites·6 claims
- 3088US4627046AProgrammable feature cardDATA GENERAL CORP·Filed 1984·Granted Dec 2, 1986·45 cites·3 claims
- 3187US5937159ASecure computer systemDATA GENERAL CORP·Filed 1997·Granted Aug 10, 1999·213 cites·25 claims
- 3287US4829427ADatabase query code generation and optimization based on the cost of alternate access methodsDATA GENERAL CORP·Filed 1984·Granted May 9, 1989·196 cites·11 claims
- 3387US4191976ACircuit indicating phase relationshipDATA GENERAL CORP·Filed 1978·Granted Mar 4, 1980·31 cites·20 claims
- 3487US4097729AScanning system and methodDATA GENERAL CORP·Filed 1975·Granted Jun 27, 1978·64 cites·18 claims
- 3586US4131805ALine power cord adaptorDATA GENERAL CORP·Filed 1977·Granted Dec 26, 1978·51 cites·9 claims
- 3686US4042972AMicroprogram data processing technique and apparatusDATA GENERAL CORP·Filed 1974·Granted Aug 16, 1977·58 cites·14 claims
- 3786US4005405AError detection and correction in data processing systemsDATA GENERAL CORP·Filed 1975·Granted Jan 25, 1977·70 cites·9 claims
- 3885US5490723ADisk array subsystem for use in a data processing systemDATA GENERAL CORP·Filed 1994·Granted Feb 13, 1996·27 cites·8 claims
- 3985US5095404AArrangement for mounting and cooling high density tab IC chipsDATA GENERAL CORP·Filed 1990·Granted Mar 10, 1992·106 cites·11 claims
- 4085US5051982AMethods and apparatus for implementing switched virtual connections (SVCs) in a digital communications switching systemDATA GENERAL CORP·Filed 1989·Granted Sep 24, 1991·81 cites·19 claims
- 4185US4901232AI/O controller for controlling the sequencing of execution of I/O commands and for permitting modification of I/O controller operation by a host processorDATA GENERAL CORP·Filed 1987·Granted Feb 13, 1990·105 cites·16 claims
- 4285US4513372AUniversal memoryDATA GENERAL CORP·Filed 1982·Granted Apr 23, 1985·45 cites·10 claims
- 4385US4229801AFloating point processor having concurrent exponent/mantissa operationDATA GENERAL CORP·Filed 1978·Granted Oct 21, 1980·56 cites·20 claims
- 4484US4532590AData processing system having a unique address translation unitDATA GENERAL CORP·Filed 1982·Granted Jul 30, 1985·79 cites·16 claims
- 4584US4477867ACore saturation control circuitDATA GENERAL CORP·Filed 1983·Granted Oct 16, 1984·40 cites·6 claims
- 4683US5809256ASoft power switching for hot installation and removal of circuit boards in a computer systemDATA GENERAL CORP·Filed 1996·Granted Sep 15, 1998·152 cites·5 claims
- 4783US4821184AUniversal addressing system for a digital data processing systemDATA GENERAL CORP·Filed 1984·Granted Apr 11, 1989·60 cites·19 claims
- 4883US4644545ADigital encoding and decoding apparatusDATA GENERAL CORP·Filed 1983·Granted Feb 17, 1987·25 cites·18 claims
- 4983US4434459AData processing system having instruction responsive apparatus for both a basic and an extended instruction setDATA GENERAL CORP·Filed 1980·Granted Feb 28, 1984·67 cites·8 claims
- 5083US4387425AMasterless and contentionless computer networkDATA GENERAL CORP·Filed 1980·Granted Jun 7, 1983·81 cites·31 claims
Showing the top 50 of 307 patent records by PatentIndex Score.
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