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6854021 |
Communications between partitions within a logically partitioned computer
Method and apparatus for sending data from one partition to a second partition within a logically partitioned computer. In a data processing system having multiple logical partitions, a send queue...
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6854022 |
Disk drive using rotational position optimization algorithm to facilitate write verify operations
A disk drive is disclosed wherein a write command is verified according to a rotational position optimization (RPO) algorithm rather than immediately after the write command to better optimize...
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6845403 |
System and method for storage virtualization
The present invention is generally directed to a system and method for virtualizing storage in a networked system. In accordance with one aspect of the invention, in a system having an initiator...
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6845405 |
Disk drive executing part of a linked disk command
A disk drive is disclosed which links disk commands that access near sequential data sectors. The linked and non-linked disk commands are inserted into an input/output queue and selected for...
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6842792 |
Method and/or apparatus to sort request commands for SCSI multi-command packets
An apparatus comprising a plurality of IO queues and a logic circuit. The plurality of IO queues each may be configured to receive a respective IO request and present the IO request in response to...
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6842793 |
Method and apparatus for verifying data in a storage system
A method for verifying data in a storage system is disclosed. A host computer transmits area management data to a storage controller. The area management data specifies a range of a storage area in...
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6842803 |
Computer system with privileged-mode modem driver
A communications system includes physical layer hardware and a processing unit. The physical layer hardware is adapted to communicate data over a communications channel in accordance with a...
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6839772 |
Chip card reader having contact and contactless operating modes
The invention relates to a chip card reader ( 10 ) comprising a central processing unit ( 20 ) comprising means (MP2, MEM2, PG20, 23) for emitting and receiving, on a communication bus ( 60 ),...
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6839774 |
Single-chip data processing apparatus incorporating an electrically rewritable nonvolatile memory and method of operating the same
A microcontroller includes an electrically erasable and programmable nonvolatile memory and a memory controller for controlling the nonvolatile memory. Upon writing a control program for the...
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6834314 |
Method and apparatus for reordering packet transactions within a peripheral interface circuit
An apparatus for reordering packet transactions within a peripheral interface circuit. The apparatus includes a source tagging unit and a control unit. The source tagging unit may be configured to...
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6829659 |
Method, system and program product for logically disconnecting in fibre channel communication without closing the exchange
The present invention provides fiber channel networks the ability to logically disconnect without closing an exchange pair wherein the control unit signals the channel that the channel can elect to...
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6826629 |
Apparatus and method for enhancing learning ability and behavior for a computer peripheral device
A computer peripheral device learning apparatus includes a host computer, a communication path, and a computer peripheral device. The host computer includes a peripheral device driver configured to...
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6826631 |
System and method for indicating the status of a communications link and traffic activity on non-protocol aware modules
A system, device, method and computer program to control and set LEDs associated with ports that are non-protocol aware is accomplished. This system, device, method and computer program does not...
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6826630 |
Prioritizing commands in a data storage device
A unique system and method for ordering commands to reduce disc access latency while giving preference to pending commands. The method and system involves giving preference to pending commands in a...
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6823398 |
File system management embedded in a storage device
A file system for accessing information on digital storage media is provided by a storage device controller embedded within the storage device. The storage device controller includes an interface...
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6820140 |
Method, system, and program for returning data to read requests received over a bus
Provided are a method, system, and program for receiving a read request that is one of a plurality of read requests directed toward sequential data and determining whether at least one previous...
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6820151 |
Starvation avoidance mechanism for an I/O node of a computer system
A starvation avoidance mechanism for an input/output node of a computer system. A scheduler unit includes a first buffer circuit and a second buffer circuit. The first buffer circuit includes a...
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6819323 |
Structure and method for gaining fast access to pixel data to store graphic image data in memory
A memory chip having fast access to pixel data of graphics image to be stored therein is described. The memory chip consists of data inputs and outputs (I/Os) divided into a plurality of blocks;...
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6816926 |
Storage system
For using a plurality of files contained in one logical device with a plurality of processing systems, sharing of a data storage unit among the plurality of processing systems is realized without...
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6816917 |
Storage system with LUN virtualization
An apparatus comprises a data path capable of coupling a physical device to a plurality of initiators. An interface is coupled to the data path and forms a command pathway between the plurality of...
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6816916 |
Data storage system having multi-cast/unicast
A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The...
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6816928 |
Packet communication apparatus with first and second processing circuits which access a storage circuit during first and second time periods, respectively
A packet communication apparatus processes consecutively transmitted fixed-length packets. The apparatus includes a storage circuit, a first processing circuit which accesses the storage circuit...
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6813649 |
Onboard user manual for a printing capable device
A printing capable device includes a printing mechanism for printing on a printable medium and an onboard user manual storage device communicating with the printing mechanism and storing an onboard...
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6813653 |
Method and apparatus for implementing PCI DMA speculative prefetching in a message passing queue oriented bus system
Speculative prefetching during DMA reads in a message-passing, queue-oriented bus system is controlled by creating a special data structure, called a “DMA scoreboard”, for each work queue entry...
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6813646 |
Controlling electronics across an RF barrier using a serial interface bus
A method for controlling electronics across an RF barrier is disclosed. The method comprises a serial data control method that requires a limited number of signals passing through an RF barrier and...
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6810447 |
Hierarchical approach to identifying changing device characteristics
Determining device characteristics includes obtaining a first globally accessible value, if the first globally accessible value corresponds to a stored first value, obtaining device characteristics...
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6810434 |
Multimedia interface having a processor and reconfigurable logic
An integrated circuit architecture for multimedia processing. A single integrated circuit (IC) operates as a system or subsystem, and is adaptable to processing a variety of multimedia algorithms,...
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6807585 |
Method and system for parsing section data
A system and methods are shown for accommodating high-speed data retention. Multimedia packetized stream data packets are received through a receiving hardware system. Program Specific Information...
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6804732 |
Port sampling circuit apparatus incorporated in a microcomputer
A signal output section of a port sampling circuit 6 periodically changes the output level of an output port 11 based on a sampling period stored in a register which is set by CPU 2. A data...
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6804725 |
IC with state machine controlled linking module
A TAP linking module provides for control and access of plural TAPs on an IC through one set of JTAG signal pins. The IC includes plural circuit modules, each with its own TAP, and boundary scan...
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6804743 |
Two step memory device command buffer apparatus and method and memory devices and computer systems using same
A command buffer for use in packetized DRAM includes a two stage shift register for shifting for sequentially storing two of four 10-bit command words in each packet. After the first two words of...
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6801955 |
System and method for automatically selecting a digital sending functionality
Systems and methods for automatically selecting digital sending functionality are provided. In one embodiment, the method comprises receiving input of a character, determining the nature of the...
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6799134 |
Characterization of self-timed sequential circuits
A method and circuit for verifying the burst-mode operation and the frequency characterization of a self-timed sequential circuit 2 in burst mode by detecting and measuring an output 15 of the...
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6799225 |
Controllerless modem
A computer system implements a standard modem without the use of a microcontroller. Instead, a digital signal processor is provided on an expansion card, but with direct links to the computer...
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6795879 |
Apparatus and method for wait state analysis in a digital signal processing system
In order to analyze the conditions leading to a stall or a wait state in a digital signal processing unit, READY signals, that are typically applied to the execution unit of a central processing...
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6795873 |
Method and apparatus for a scheduling driver to implement a protocol utilizing time estimates for use with a device that does not generate interrupts
The present invention provides a method and apparatus for a scheduling driver to implement a protocol using time estimates for use with a device that does not generate interrupts. An application...
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6795870 |
Method and system for network processor scheduler
A system and method uses grouped calendars, flow queues, pointers and stored rules to process information packets so that different flow control characteristics associated with the information...
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6792476 |
Storage medium, and method and apparatus for information processing
An information processing apparatus, disposed between a controlling portion and hardware, for performing a process corresponding to a program that contains capsulated process portions for...
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6792485 |
Data output control apparatus connected via a network to a portable terminal and a plurality of printing apparatuses
The invention provides a data output control apparatus which is suitable for allowing detailed information on a network to be readily obtained. A data output control terminal selects one of...
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6789133 |
System and method for facilitating use of commodity I/O components in a legacy hardware system
A system and method for processing I/O requests in a computing system. I/O packets are created via an operating system associated with the computing system, where the I/O packets include I/O...
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6789132 |
Modular disc drive architecture
A data storage device control module for controlling operational processes in a data storage device comprises a number of preemptive modules, a number of non-preemptive modules, and a scheduler...
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6785745 |
Recording/reproducing device
A recording/playback apparatus includes an upper control unit which transmits a composite command, which includes a real processing command and a virtual command, to a disk device. The disk device...
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6785744 |
Mapping SCSI medium changer commands to mainframe-compatible perform library function commands
Emulation of a small computer system interface (SCSI) library storage is provided in a virtual data storage subsystem having an automated tape library. This allows the ability to access or store a...
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6785751 |
Method and apparatus for minimizing bus contention for I/O controller write operations
Inform writes to inform a controller of availability of a plurality of replacement data buffers are optimally batched as a single message. Batching the inform writes lets the controller maintain...
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6782432 |
Automatic state savings in a graphics pipeline
A method, apparatus, and system are described for processing an operation code (op-code) to be transmitted over a data path of a graphics pipeline. If the op-code comprises context state...
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6779044 |
Access control for an information processing device
The invention relates to an information processing device with an access control function. This device comprises a first storage section storing at least one access information item that can be...
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6779052 |
Electronic apparatus, system and method for controlling communication among devices coupled through different interfaces
An electronic apparatus, system and method are provided for controlling different types of electronic devices coupled through a serial bus. The electronic apparatus may include an Integrated Drive...
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6779045 |
System and apparatus for increasing the number of operations per transmission for a media management system
The present invention is in the field of flash memory. More particularly, embodiments of the present invention can enhance an interface of a flash memory device by increasing the number of...
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6775722 |
Efficient data retrieval from input coupling queues
An architecture for data retrieval from a plurality of coupling queues. At least first and second data queues are provided for receiving data thereinto. The data is read from the at least first and...
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6772231 |
Structure and process for distributing SCSI LUN semantics across parallel distributed components
Briefly, the present invention provides a system and method for distributing SCSI semantics throughout a network. Specifically, the present invention distributes the SCSI semantics through multiple...
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