Abstract: One embodiment is a method that divides a cluster file system into multiple segments with each segment including one or more local counters. The method then checks for inconsistencies and corrects discovered inconsistencies in each of the local counters while the file system remains online and available for use.

Abstract: One embodiment is a method that stores metadata about files separately from directories for the files in storage devices and represents the directories as a tree structure in which entries refer to separate storage blocks that include the metadata with each of the separate storage blocks storing metadata for only a single file.

Abstract: This invention provides a process for producing high-purity dense polycrystalline III-nitride slabs. A vessel which contains a group III-metal such as gallium or an alloy of group III-metals of shallow depth is placed in a reactor. The group III-metal or alloy is heated until a molten state is reached after which a halide-containing source mixed with a carrier gas and a nitrogen-containing source is flowed through the reactor vessel. An initial porous crust of III-nitride forms on the surface of the molten III-metal or alloy which reacts with the nitrogen-containing source and the halide-containing source. The flow rate of the nitrogen-containing source is then increased and flowed into contact with the molten metal to produce a dense polycrystalline III-nitride. The products produced from the inventive process can be used as source material for III-nitride single crystal growth which material is not available naturally.

Abstract: A system and method thereof, comprising means for: communicating through at least one computer network interface with each of (i) a plurality of providers of accountable resources, and (ii) a plurality of registrars which register clients, each client having access to accountable resources of providers, and maintain client-associated accounts therewith; generating a token verifying that a client is authenticated by a registrar; logging accountable transactions identifying a client-associated account and a transaction valuation, maintained by the registrar; and periodically accounting for the logged accountable transactions between respective registrars and respective providers; wherein a valuation of the accountable transaction is dependent at least on information conveyed in the token.

Abstract: A system and method thereof, comprising means for: communicating through at least one computer network interface with each of (i) a plurality of providers of accountable resources, and (ii) a plurality of registrars which register clients, each client having access to accountable resources of providers, and maintain client-associated accounts therewith; generating a token verifying that a client is authenticated by a registrar; logging accountable transactions identifying a client-associated account and a transaction valuation, maintained by the registrar; and periodically accounting for the logged accountable transactions between respective registrars and respective providers; wherein a valuation of the accountable transaction is dependent at least on information conveyed in the token.

Abstract: A method of hydrothermally synthesizing sapphire single crystals doped with trivalent metal ions in a crystal-growth autoclave including a crystal-growth zone and nutrient-dissolution zone in fluid communication with the crystal-growth zone is provided. Implementations of the method including situating within the crystal-growth zone at least one sapphire-based seed crystal and situating within the nutrient-dissolution zone an aluminum-containing material to serve as nutrient. An acidic, trivalent-metal-ion-containing growth solution is introduced into the cavity in a quantity sufficient, at least when heated to a predetermined average temperature, to immerse the at least one seed crystal and the nutrient in the growth solution. The growth solution is selected such that sapphire exhibits retrograde solubility therein and the growth process is carried out while maintaining an interior-cavity pressure within a range between and including each of 3.

Abstract: One embodiment is a method that divides a cluster file system into multiple segments with each segment including one or more local counters. The method then checks for inconsistencies and corrects discovered inconsistencies in each of the local counters while the file system remains online and available for use.

Abstract: One embodiment is a method that stores metadata about files separately from directories for the files in storage devices and represents the directories as a tree structure in which entries refer to separate storage blocks that include the metadata with each of the separate storage blocks storing metadata for only a single file.

Abstract: A system and method are disclosed for providing multi-node environment comprising a first node associated with a first operating system; a second node associated with a second operating system, wherein the second operating system is independent of the first operating system; a storage; and an interconnect coupling the first node with the storage and coupling the second node with the storage; and wherein the first node directly accesses the storage and the second node directly accesses the storage.

Abstract: A servo control circuit provides seamless transition between seek and track modes while enabling both rapid seek mode operation and accurate tracking. The control circuit includes an analog-to-digital converter having a non-linear characteristic. The non-linear characteristic provides disproportionately large control voltages to derive speed and settling in the seek mode and essentially linear control voltages in the track mode to provide low noise and accurate tracking operation.

Abstract: A system and method thereof, comprising means for: communicating through at least one computer network interface with each of (i) a plurality of providers of accountable resources, and (ii) a plurality of registrars which register clients, each client having access to accountable resources of providers, and maintain client-associated accounts therewith; generating a token verifying that a client is authenticated by a registrar; logging accountable transactions identifying a client-associated account and a transaction valuation, maintained by the registrar; and periodically accounting for the logged accountable transactions between respective registrars and respective providers; wherein a valuation of the accountable transaction is dependent at least on information conveyed in the token.

Abstract: According to the invention a well-switching arrangement, with a semiconductor circuit including a switch having an input terminal, an output terminal and a body region and at least one comparator having a first input coupled to at least one of the terminals and a second input coupled to a positive voltage rail, and logic coupled to an output of the comparator and responsive to the output to selectively couple the body-well region to one of the terminals or to the positive voltage rail.

Abstract: A system for managing user accounts and controlling anonymous access to resources over data networks for a plurality of provider members in a manner to preserve the secrecy of the identity of a user who is in a home provider's user/customer base. The system includes a means for sharing non-identifying user information and charges among a plurality of service provider members, including a home provider and an outside provider, a means for enabling a user who is registered as a customer with the home provider to anonymously access the resources of the outside provider, a sharing means adapted to allow the system to permit the home provider to enable access by the user to the resources of the outside provider without requiring either personal identification or an open account for the user at the outside provider, and a verification means separate from the home provider adapted to allow the outside provider to determine the user's access privileges and criteria.

Abstract: An integrated circuit is disclosed that includes a semiconductor substrate having a major body portion with a conductive layer having a predefined boundary and located on a first surface of the major body portion. An insulating layer is located over the conductive layer, over which an integrated inductor is located. An amplifier is connected between the integrated inductor and the conductive layer.

Abstract: A servo control circuit provides seamless transition between seek and track modes while enabling both rapid seek mode operation and accurate tracking. The control circuit includes an analog-to-digital converter having a non-linear characteristic. The non-linear characteristic provides disproportionately large control voltages to derive speed and settling in the seek mode and essentially linear control voltages in the track mode to provide low noise and accurate tracking operation.

Abstract: Methods and structures for ensuring the highly linear discharge of a capacitor used for slew rate control of a power driving stage from a maximum voltage to a minimum supply voltage, such as ground. A voltage ramp generator uses a single cascoded current source to achieve the linear ramp-down.

Abstract: Methods and structures for ensuring the highly linear discharge of a capacitor used for slew rate control of a power driving stage from a maximum voltage to a minimum supply voltage, such as ground. A voltage ramp generator uses a single cascoded current source to achieve the linear ramp-down.

Abstract: A current amplifier comprising an amplifier circuit with overall negative feedback and an output current amplification circuit. In one embodiment, a photodiode provides a current to be amplified and the amplifier circuit and the output current amplification circuit are implemented using MOS technology.

Abstract: A servo control circuit provides seamless transition between seek and track modes while enabling both rapid seek mode operation and accurate tracking. The control circuit includes an analog-to-digital converter having a non-linear characteristic. The non-linear characteristic provides disproportionately large control voltages to derive speed and settling in the seek mode and essentially linear control voltages in the track mode to provide low noise and accurate tracking operation.

Abstract: Methods and structures for ensuring the highly linear discharge of a capacitor used for slew rate control of a power driving stage from a maximum voltage to a minimum supply voltage, such as ground. A voltage ramp generator uses a single cascoded current source to achieve the linear ramp-down.