Assignee

AMDAHL CORP

US169 patents

Top patents by PatentIndex Score

US5596752AJan 21, 1997

System for creating, editing, displaying, and executing rules-based programming language rules having action part subsets for both true and false evaluation of the conditional part

AMDAHL CORP219 citations97

US5594899AJan 14, 1997

Operating system and data base having an access structure formed by a plurality of tables

AMDAHL CORP194 citations97

US5586330ADec 17, 1996

Access control mechanism controlling access to and logical purging of access register translation lookaside buffer (ALB) in a computer system

AMDAHL CORP181 citations96

US4993030AFeb 12, 1991

File system for a plurality of storage classes

AMDAHL CORP213 citations96

US4841355AJun 20, 1989

Three-dimensional microelectronic package for semiconductor chips

AMDAHL CORP138 citations96

US4654790AMar 31, 1987

Translation of virtual and real addresses to system addresses

AMDAHL CORP78 citations96

US4620215AOct 28, 1986

Integrated circuit packaging systems with double surface heat dissipation

AMDAHL CORP89 citations96

US5586329ADec 17, 1996

Programmable computer with automatic translation between source and object code with version control

AMDAHL CORP99 citations95

US4682281AJul 21, 1987

Data storage unit employing translation lookaside buffer pointer

AMDAHL CORP115 citations95

US4612612ASep 16, 1986

Virtually addressed cache

AMDAHL CORP74 citations95

US5584026ADec 10, 1996

Computer method for implementing a GET instruction

AMDAHL CORP56 citations94

US5553285ASep 3, 1996

File system for a plurality of storage classes

AMDAHL CORP82 citations94

US5426783AJun 20, 1995

System for processing eight bytes or less by the move, pack and unpack instruction of the ESA/390 instruction set

AMDAHL CORP110 citations94

US5095424AMar 10, 1992

Computer system architecture implementing split instruction and operand cache line-pair-state management

AMDAHL CORP64 citations94

US4855947AAug 8, 1989

Microprogrammable pipeline interlocks based on the validity of pipeline states

AMDAHL CORP56 citations94

US4576900AMar 18, 1986

Integrated circuit multilevel interconnect system and method

AMDAHL CORP80 citations94

US4395438AJul 26, 1983

Low pressure chemical vapor deposition of silicon nitride films

AMDAHL CORP108 citations94

US4343877AAug 10, 1982

System for design and production of integrated circuit photomasks and integrated circuit devices

AMDAHL CORP71 citations94

US4142243AFeb 27, 1979

Data processing system and information scanout employing checksums for error detection

AMDAHL CORP74 citations94

US5072376ADec 10, 1991

Measuring utilization of processor shared by multiple system control programs

AMDAHL CORP69 citations93

US5016167AMay 14, 1991

Resource contention deadlock detection and prevention

AMDAHL CORP64 citations93

US4954313ASep 4, 1990

Method and apparatus for filling high density vias

AMDAHL CORP90 citations93

US5410668AApr 25, 1995

Reconfigurable cache memory which can selectively inhibit access to damaged segments in the cache memory

AMDAHL CORP32 citations92

US5365526ANov 15, 1994

Trace system for an I/O channel

AMDAHL CORP20 citations92

US5166863ANov 24, 1992

Liquid-cooled assembly of heat-generating devices and method for assembling and disassembling

AMDAHL CORP69 citations92

US4920485AApr 24, 1990

Method and apparatus for arbitration and serialization in a multiprocessor system

AMDAHL CORP36 citations92

US4835728AMay 30, 1989

Deterministic clock control apparatus for a data processing system

AMDAHL CORP58 citations92

US4780809AOct 25, 1988

Apparatus for storing data with deferred uncorrectable error reporting

AMDAHL CORP51 citations92

US4731739AMar 15, 1988

Eviction control apparatus

AMDAHL CORP52 citations92

US4631660ADec 23, 1986

Addressing system for an associative cache memory

AMDAHL CORP33 citations92

US4578750AMar 25, 1986

Code determination using half-adder based operand comparator

AMDAHL CORP63 citations92

US4347446AAug 31, 1982

Emitter coupled logic circuit with active pull-down

AMDAHL CORP35 citations92

US5517668AMay 14, 1996

Distributed protocol framework

AMDAHL CORP122 citations91

US5490250AFeb 6, 1996

Method and apparatus for transferring indication of control error into data path of data switcher

AMDAHL CORP78 citations91

US5423025AJun 6, 1995

Error handling mechanism for a controller having a plurality of servers

AMDAHL CORP98 citations91

US5175849ADec 29, 1992

Capturing data of a database system

AMDAHL CORP90 citations91

US5122978AJun 16, 1992

Pulse width measurement technique

AMDAHL CORP88 citations91

US4888689ADec 19, 1989

Apparatus and method for improving cache access throughput in pipelined processors

AMDAHL CORP36 citations91

US4851993AJul 25, 1989

Cache move-in bypass

AMDAHL CORP45 citations91

US4773035ASep 20, 1988

Pipelined data processing system utilizing ideal floating point execution condition detection

AMDAHL CORP31 citations91

US4742454AMay 3, 1988

Apparatus for buffer control bypass

AMDAHL CORP29 citations91

US4244019AJan 6, 1981

Data processing system including a program-executing secondary system controlling a program-executing primary system

AMDAHL CORP33 citations91

US4149244AApr 10, 1979

Data processing system including a program-executing secondary system controlling a program-executing primary system

AMDAHL CORP32 citations91

US5487166AJan 23, 1996

Computer with two-dimensional merge tournament sort using offset-value coding

AMDAHL CORP39 citations90

US5168560ADec 1, 1992

Microprocessor system private split cache tag stores with the system tag store having a different validity bit for the same data line

AMDAHL CORP30 citations90

US4881163ANov 14, 1989

Computer system architecture employing cache data line move-out queue buffer

AMDAHL CORP31 citations90

US4875159AOct 17, 1989

Version management system using plural control fields for synchronizing two versions of files in a multiprocessor system

AMDAHL CORP382 citations90

Showing the top 50 of 169 patents by PatentIndex Score.

AMDAHL CORP

Top patents by PatentIndex Score

System for creating, editing, displaying, and executing rules-based programming language rules having action part subsets for both true and false evaluation of the conditional part

Operating system and data base having an access structure formed by a plurality of tables

Programmable computer with automatic translation between source and object code

Pressurized interconnection system for semiconductor chips

Operating system and data base using table access method with dynamic binding

Access control mechanism controlling access to and logical purging of access register translation lookaside buffer (ALB) in a computer system

File system for a plurality of storage classes

Three-dimensional microelectronic package for semiconductor chips

Translation of virtual and real addresses to system addresses

Integrated circuit packaging systems with double surface heat dissipation

Programmable computer with automatic translation between source and object code with version control

Data storage unit employing translation lookaside buffer pointer

Virtually addressed cache

Computer method for implementing a GET instruction

File system for a plurality of storage classes

System for processing eight bytes or less by the move, pack and unpack instruction of the ESA/390 instruction set

Computer system architecture implementing split instruction and operand cache line-pair-state management

Microprogrammable pipeline interlocks based on the validity of pipeline states

Integrated circuit multilevel interconnect system and method

Low pressure chemical vapor deposition of silicon nitride films

System for design and production of integrated circuit photomasks and integrated circuit devices

Data processing system and information scanout employing checksums for error detection

Measuring utilization of processor shared by multiple system control programs

Resource contention deadlock detection and prevention

Method and apparatus for filling high density vias

Reconfigurable cache memory which can selectively inhibit access to damaged segments in the cache memory

Trace system for an I/O channel

Liquid-cooled assembly of heat-generating devices and method for assembling and disassembling

Method and apparatus for arbitration and serialization in a multiprocessor system

Deterministic clock control apparatus for a data processing system

Apparatus for storing data with deferred uncorrectable error reporting

Eviction control apparatus

Addressing system for an associative cache memory

Code determination using half-adder based operand comparator

Emitter coupled logic circuit with active pull-down

Distributed protocol framework

Method and apparatus for transferring indication of control error into data path of data switcher

Error handling mechanism for a controller having a plurality of servers

Capturing data of a database system

Pulse width measurement technique

Apparatus and method for improving cache access throughput in pipelined processors

Cache move-in bypass

Pipelined data processing system utilizing ideal floating point execution condition detection

Apparatus for buffer control bypass

Data processing system including a program-executing secondary system controlling a program-executing primary system

Data processing system including a program-executing secondary system controlling a program-executing primary system

Computer with two-dimensional merge tournament sort using offset-value coding

Microprocessor system private split cache tag stores with the system tag store having a different validity bit for the same data line

Computer system architecture employing cache data line move-out queue buffer

Version management system using plural control fields for synchronizing two versions of files in a multiprocessor system