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Patent Agency Ranking
公开(公告)号：JP2002328891A
公开(公告)日：2002-11-15
申请号：JP2002046075
申请日：2002-02-22
Applicant: IBM
Inventor： ARNDT RICHARD L , FOSTER ROBERT K , LIPP WALTER M , LUCAS KERRY A , MCCREARY CASEY L , MEALEY BRUCE , POIMBOEUF JOSHUA N
Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for providing a computer system having a plurality of logical partitions with a virtual terminal. SOLUTION: The computer system is coupled to an external display device through a single communication interface. The method and system include allowing the logical partitions to share the communication interface by multiplexing communication to the display device for each of the logical partitions over the communication interface. Windows are displayed on the display device for each of the logical partitions, and the communication from each of the logical partitions is then routed to the corresponding window for display on the display device.
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公开(公告)号：FR2369631A1
公开(公告)日：1978-05-26
申请号：FR7727689
申请日：1977-09-09
Applicant: IBM
Inventor： ARNDT RICHARD L , MEYERHOFER WILFRED L JR , STEINBAUER DAVID M
Abstract: A reader for badges having rows of data representative holes therethrough, the reader including a row of data reading photo-sensitive devices or the like for sensing light passing through a row of the badge holes, a stationary encoder bar having two rows of holes therethrough and a carriage movable with the badge as it is moved across the row of data reading devices for reading the holes in the badge and carrying a pair of control photo-sensitive devices for sensing light passing through the holes of the encoder bar. The holes in the two rows in the encoder bar are slightly staggered with respect to each other so as to provide main composite states in which the two control photo-sensitive devices are either both activated or inactivated and transition states in which just one of the two control photo-sensitive devices is activated, and means are provided responsive to the transition states for reading the data representative holes in the badge at the time of occurence of the transition states during movement of the badge and carriage.
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公开(公告)号：CA2344597A1
公开(公告)日：2001-12-08
申请号：CA2344597
申请日：2001-04-17
Applicant: IBM
Inventor： ARNDT RICHARD L
IPC: G06F9/46 , G06F9/06 , G06F9/50 , G06F12/08 , G06F13/00 , G06F13/10 , G06F13/38 , G06F15/16 , G06F15/167 , G06F15/76 , G06F17/00
Abstract: A logically partitioned data processing system in which shared resources are emulated to provide each partition a separate copy of the shared resource is provided. I n one embodiment, the logically partitioned data processing system includes a plurality of logical partitions, a plurality of operating systems executing within the data processing system and a pluralit y of assignable resources. Each of the plurality of operating systems is assigned to a separate one of the plurality of logical partitions, such that no more than one operating system is assign ed to any given logical partition. Each of the plurality of assignable resources is assigned to a single one of the plurality of logical partitions. The logically partitioned data processing system also includes a hypervisor. The hypervisor emulates shared resources, such as an operator panel and a system console, and provides a virtual copy of these shared resources to each of the plurality of logical partitions.
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公开(公告)号：CA2123447A1
公开(公告)日：1995-03-21
申请号：CA2123447
申请日：1994-05-12
Applicant: IBM
Inventor： ARNDT RICHARD L , NICHOLSON JAMES O , SILHA EDWARD J , THURBER STEVEN M , YOUNGS AMY M
IPC: G06F15/16 , G06F9/46 , G06F9/48 , G06F13/24 , G06F15/177
Abstract: An interrupt subsystem within a data processing system is scalable from low-end uniprocessor systems to high-end multi-processor (MP) systems. This interrupt subsystem provides for queuing of interrupts from many sources, and for queuing of interrupts to the best processor in a multi-processor system. The external interrupt mechanism is separated into two layers, an interrupt routing layer and an interrupt presentation layer. The interrupt routing layer routes the interrupt conditions to the appropriate instance of an interrupt management area within the interrupt presentation layer. The interrupt presentation layer communicates the interrupt source to the system software which is to service/process the interrupt. By providing two layers within the interrupt subsystem, application or system software can be written which is independent from the types or sources of interrupts. The interrupt routing layer hides the details of a particular hardware implementation from the software. The interrupt presentation layer interfaces to the system and/or application software, and provides hardware independent functionality.
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公开(公告)号：CA2344597C
公开(公告)日：2008-12-30
申请号：CA2344597
申请日：2001-04-17
Applicant: IBM
Inventor： ARNDT RICHARD L
IPC: G06F9/46 , G06F15/76 , G06F9/06 , G06F9/50 , G06F12/08 , G06F13/00 , G06F13/10 , G06F13/38 , G06F15/16 , G06F15/167 , G06F17/00
Abstract: A logically partitioned data processing system in which shared resources are emulated to provide each partition a separate copy of the shared resource is provided. I n one embodiment, the logically partitioned data processing system includes a plurality of logical partitions, a plurality of operating systems executing within the data processing system and a pluralit y of assignable resources. Each of the plurality of operating systems is assigned to a separate one of the plurality of logical partitions, such that no more than one operating system is assign ed to any given logical partition. Each of the plurality of assignable resources is assigned to a single one of the plurality of logical partitions. The logically partitioned data processing system also includes a hypervisor. The hypervisor emulates shared resources, such as an operator panel and a system console, and provides a virtual copy of these shared resources to each of the plurality of logical partitions.
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