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Cooling computer systems
A modular computer system, for example a high density server system, includes an enclosure for receiving a number of computer system modules. A number of...
Reconfigurable hardware filter for texture mapping and image processing
A programmable filter comprising a tree of computational units, where each computational unit is configured to receive multiple inputs and generate multiple...
External dirty tag bits for 3D-RAM SRAM
An external cache management unit for use with a 3D-RAM frame buffer and suitable for use in a computer graphics system is described. The unit may reduce power...
Phase locked loop input receiver design with delay matching feature
A phase locked loop that includes a receiver circuit for matching delays of a system clock and a feedback clock at an input of the phase locked loop is provided....
Device including a resistive path to introduce an equivalent RC circuit
Structures for providing devices that include resistive paths specifically designed to provide a predetermined resistance between the bulk material of the device...
Aggregation of storage elements into stations and placement of same into an
integrated circuit or design
The present invention describes a method and apparatus for placing flops in a complex circuit design. Initially, the method calculates a physical range for every...
Boosting simulation performance by dynamically customizing segmented object
codes based on stimulus coverage
A method for dynamically customizing object code for simulation includes obtaining a statically generated object (SGO) and a first test vector, segmenting the...
Method, system and computer product to produce a computer-generated
integrated circuit design
The present invention provides a method, a system and a computer product for designing an integrated circuit using control software and employing the control...
Post-silicon control of an embedded temperature sensor
A temperature sensor adapted to produce a temperature-independent voltage and temperature-dependent voltage dependent on an internal control signal, generated...
Method and apparatus for recovering encryption session keys
A method and apparatus allows a session key for a encrypted message to be recovered even if the recipient loses or forgets his private key. A session key...
Modular spring loaded PCI card retaining device
According to one embodiment, a computer system is disclosed. The computer system includes an enclosure and a card retaining assembly. The card training assembly...
Cascode SSTL output buffer using source followers
A cascode SSTL output buffer using a source follower circuit includes a biasing circuit arranged to generate a first bias signal. The source follower circuit is...
Two-pin thermal sensor calibration interface
A sensor and method are provided for sensing a physical stimulus in an integrated amount, such as thermal energy and produce a signal that indicates a...
Housing having refractive illumination device
A housing for computer or the like includes a front wall, a refractive planer member attached to the housing and having a rib or a swelling engaged into the...
Method and apparatus for wet trapping with energy-curable flexographic
The present invention is for a method and associated apparatus whereby low viscosity flexograhic printing inks having a viscosity controlling diluent are used in...
Using link-layer address to obtain device drivers
Methods and systems consistent with the present invention utilize a unique hardware address of a first network device to determine and locate an appropriate...
System observation bus
A method and mechanism for configuring a node in a computing system to route data to a predetermined observation point. A node in a computing device or system is...
Method and apparatus for using an assist processor and value speculation to
facilitate prefetching for a...
One embodiment of the present invention provides a system that prefetches from memory by using an assist processor that performs data speculation and that...
Method and apparatus for caching with variable size locking regions
A method of managing data in a cache memory includes mapping a member of a plurality of memory addresses in a main memory onto a first member of a plurality of...
Method and apparatus facilitating automatic persistence in asymmetric
One embodiment of the present invention provides a system that facilitates storage of objects in a persistent memory with asymmetric access characteristics. The...
Method and apparatus for using a non-committing data cache to facilitate
One embodiment of the present invention provides a system that facilitates speculative execution of instructions within a computer system. Upon encountering a...
Method and apparatus for filtering lock requests
Method and apparatus for locking by sharing lock states. Each resource is associated with a lock state that represents its lock. Lock states are made of one set...
PCI riser card bracket assembly
The present invention discloses methods and apparatus for installing printed circuit boards within an electronic assembly. One embodiment is a riser card bracket...
Queuing delay limiter
A method for identifying stale transactions in a queueing system with transaction processors. The method includes identifying actual processing times of...
Apparatus and method for generating a partial fullness indicator signal in
Techniques for indicating partial fullness levels of a FIFO comprising a plurality of stages using a partial fullness detector, such as a m-out-of-n detector....
Host controller interface descriptor fetching unit
The present invention relates to a method and circuit for prefetching direct memory access descriptors from memory of a computer system, and storing the...
Interaction protocol for managing cross company processes among
A general purpose application interaction protocol, referred to herein as the Commerce Exchange Interaction Protocol (CXIP), governs the exchange of data between...
Parallel greater than analysis method and apparatus
Disclosed herein is an apparatus and method for determining if a first number is greater than or equal to a second number. By analyzing nibbles of a multi-bit...
Method for efficient modular division over prime integer fields
The invention provides a method for performing modular division adapted for division in integer fields. Integer modular divisions are used in the computation of...
Method and apparatus for managing remote data replication in a distributed
A three-tiered data replication management system is used on a distributed computer system connected by a network. The lowest tier comprises management facade...
Method, system, program, and computer readable medium for indexing object
oriented objects in an object...
Provided is a method, system, program, and data structures for indexing object oriented objects in an object oriented database. An object data structure is...
Lease renewal service
In accordance with methods and systems consistent with the present invention, a lease manager is provided for managing leases between clients and other network...
Implementation of nested databases using flexible locking mechanisms
Techniques have been developed whereby concurrency control mechanisms such as nested databases can be expressed in terms of operations implemented by various...
Graphics system having a super-sampled sample buffer with hot spot
A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects...
Blood pump and ventricular assist device
The blood pump according to the present invention comprises a casing having a blood inlet and a blood outlet, and an impeller for circulating blood by rotating...
Protective collar for golf bag
Methods and apparatus for managing computer processes
A number of methods, apparatus, and data structures are disclosed for managing computer processes. In one aspect, a daemon process which manages server processes...
Method to simplify and speed up design rule/electrical rule checks
A method, apparatus and computer program product for checking of integrated circuit design files using rules files. Each of the rules files has a rule associated...
Reconfigurable built-in self-test engine for testing a reconfigurable
A reconfigurable built-in self-test ("BIST") engine for testing a reconfigurable memory is disclosed. The BIST engine executes a test on a memory for detecting...
Cache synchronization method, system and apparatus for a distributed
application and an object located in a...
A cache synchronization method and apparatus for a distributed application having a client side, a server side, and an object located on either the client side...
Method and apparatus for dynamically altering configurations of clustered
Improved techniques for dynamically altering configurations of clustered computing systems are disclosed. The improved techniques can be implemented to allow...
Adder circuit with a regular structure
One embodiment of the present invention provides an apparatus for facilitating an addition operation between two N-bit numbers, wherein the apparatus has a...
Method and system for incorporating filtered roles in a directory system
Several types of roles are disclosed herein. The difference between the role types relates to their capabilities, which in turn derive from how they are...
Adjustment and calibration system for post-fabrication treatment of phase
locked loop charge pump
An adjustment and calibration system for post-fabrication treatment of a phase locked loop charge pump is provided. The adjustment and calibration system...
Coordinating loop-free forwarding table updates
A central node in a network computes for, and sends to, each node a forwarding table which consists of the set of neighbors to which the node should forward a...
System and method for small read only data
A system and method is provided for minimizing read-only data retrieval time and/or area through the use of combinatorial logic. In one embodiment of the present...
Computer system employing redundant cooling fans
A computer system employing redundant cooling fans. A system includes a first and a second array of circuit boards and a first and a second cooling fan. The two...