Abstract: Example channel circuits, data storage devices, and methods for asynchronous sampling from an oversampled analog-to-digital converter are described. The channel circuit may include an analog-to-digital converter configured to generate an oversampled digital signal from an analog data signal using a sample rate that is an integer multiple of the baud rate of the channel circuit. A digital sample interpolator may then interpolate interpolated digital signal values from multiple signal values of the oversampled digital signal and select values at baud rate to generate a baud rate digital signal. The baud rate digital signal may be used by an iterative detector in a timing loop and, once a target timing is achieved, for the iterative detector to detect data bits from the interpolated digital signal.

Abstract: A concentric flow valve for a dual zone completion tool includes an upper seal bore sleeve, lower inner sleeve, ported sub, opening sleeve, and piston positioned within an outer sub. The upper seal bore sleeve, ported sub, and outer sub define an upper flow bore, and the lower inner sleeve, ported sub, and outer sub define a lower flow bore. The ported sub includes an upper ported sleeve coupled to the upper seal bore sleeve and a lower ported sleeve coupled to the lower inner sleeve, each ported sleeve including a valve port selectively fluidly coupling the respective flow bore to a valve flow path defined by the opening sleeve and ported sub, such that the upper and lower seal bores are fluidly coupled when the opening sleeve is in an open position. The piston is mechanically coupled to the opening sleeve and defines an opening chamber.

Abstract: A concentric flow valve for a dual zone completion tool includes an upper seal bore sleeve, lower inner sleeve, ported sub, opening sleeve, and piston positioned within an outer sub. The upper seal bore sleeve, ported sub, and outer sub define an upper flow bore, and the lower inner sleeve, ported sub, and outer sub define a lower flow bore. The ported sub includes an upper ported sleeve coupled to the upper seal bore sleeve and a lower ported sleeve coupled to the lower inner sleeve, each ported sleeve including a valve port selectively fluidly coupling the respective flow bore to a valve flow path defined by the opening sleeve and ported sub, such that the upper and lower seal bores are fluidly coupled when the opening sleeve is in an open position. The piston is mechanically coupled to the opening sleeve and defines an opening chamber.

Abstract: The present disclosure describes a sealing processes and structure for sealing air cavity electronic packages using a thermosetting, thermal plastic, other known or as yet unknown adhesives, or hybrid combinations of such adhesive(s). Processes disclosed comprise steps of providing a base and a lid, with at least one of the base and the lid having a mating surface coated with the adhesive. Initially, an air gap is maintained between the base, the lid, and the adhesive and a vacuum is generated around the base, the lid, and the adhesive. Once the vacuum has been generated, the base and the lid are mated to create a mated package assembly with a vacuum therein. After the mating, the mated package assembly is heated to a curing temperature to cure the adhesive, and pressure may be applied as well. Because the air within the mated package assembly has been evacuated prior to heating, there is no air pressure build-up therein, reducing or eliminating the presence of blowouts and pin holes.

Abstract: The present disclosure describes a sealing processes and structure for sealing air cavity electronic packages using a thermosetting, thermal plastic, other known or as yet unknown adhesives, or hybrid combinations of such adhesive(s). Processes disclosed comprise steps of providing a base and a lid, with at least one of the base and the lid having a mating surface coated with the adhesive. Initially, an air gap is maintained between the base, the lid, and the adhesive and a vacuum is generated around the base, the lid, and the adhesive. Once the vacuum has been generated, the base and the lid are mated to create a mated package assembly with a vacuum therein. After the mating, the mated package assembly is heated to a curing temperature to cure the adhesive, and pressure may be applied as well. Because the air within the mated package assembly has been evacuated prior to heating, there is no air pressure build-up therein, reducing or eliminating the presence of blowouts and pin holes.

Abstract: A slow pressure triggered valve for a downhole tool may include an outer housing and a sliding sleeve. The sliding sleeve may slide within the outer housing such that apertures formed on the sliding sleeve do not align with fixed apertures of the outer housing until the sliding sleeve moves from a closed position into an open position. The sliding sleeve may be mechanically coupled to a damping piston. The damping piston may be positioned within a damping chamber and may have a flowpath formed therethrough such that as the damping piston moves with the sliding sleeve from the closed position to the open position, fluid within the damping chamber flows through the flowpath. The flowpath may include a low pressure relief valve and a flow restrictor. The sliding sleeve may be held in the closed position by a lock piston temporary retainer until a predetermined pressure is reached within the valve.

Abstract: A pressure actuated valve is disclosed which includes a plurality of flow openings, and first and second pistons. The first and second pistons are independently actuatable relative to one another, and are releasable coupled to one another by a release sleeve. The pressure actuated valve also includes a closing sleeve that is operatively coupled to the second piston. In an initial position of the second piston, the closing sleeve covers or blocks the plurality of flow openings. The pressure actuated valve includes a ratchet mechanism coupling the release sleeve to the first piston, the ratchet mechanism being adapted to allow movement of the first piston between its initial position and an intermediate position and back to its initial position while allowing the release sleeve to release the second piston after a predetermined number of cycles of movement of the first piston between its initial position and the intermediate position and back to its initial position.

Abstract: A protective modular package assembly with one or more subassemblies, each having a base element, a sidewall element coupled to the base element, and a semiconductor device disposed within and coupled to the sidewall element and the base element; a protective modular package cover having fastening sections located at opposing ends of the cover, torque elements disposed on the opposing ends and configured to fasten the cover to a core, and subassembly receiving sections disposed between the fastening sections with each subassembly receiving section operable to receive a subassembly and having a cross member along the underside of the cover; and an adhesive layer configured to affix subassemblies to respective subassembly receiving sections. The torque elements are configured to transfer a downward clamping force generated at the fastening elements to a top surface of the subassemblies via the cross member of each of the one or more subassembly receiving sections.

Abstract: A radial flow valve is disclosed which includes a plurality of flow openings, a first piston and a second piston, the first and second pistons being independently actuable relative to one another, and a sleeve operatively coupled to the second piston, the sleeve adapted to be positioned so as to cover the plurality of flow openings. A method is also disclosed which includes positioning a radial flow valve in a subterranean well bore having an upper zone pressure and a lower zone pressure, increasing a pressure within the valve to a value above the upper zone pressure to release a first piston within the valve and, after releasing the first piston, reducing the pressure within the valve to a value that is less than the lower zone pressure to thereby cause a second piston within the valve to move and thereby permit fluid flow through the valve.

Abstract: A method of designing a desired modular package assembly: determining the configuration and dimensions of the assembly from received user input design data, the assembly having a protective modular package cover with first and second fastening sections, subassembly receiving sections disposed between the fastening sections and having a cross member formed along the underside of the protective modular package cover and configured to receive a subassembly, and one or more subassemblies to be received by the subassembly receiving sections; determining an adhesive deposition strategy for deposition of an adhesive layer to the cross members of the subassembly receiving sections sufficient to affix the top side of the subassemblies to the cross members on the underside of the subassembly receiving sections; and incorporating the configuration and dimensions of the modular package assembly and the adhesive deposition strategy into a manufacturing assembly process configured to manufacture the modular package assembl

Abstract: A step ratchet mechanism that allows for the incremental movement of an assembly that may be adapted to incrementally open or close an adjustable orifice. The step ratchet mechanism may be comprised of a modified body lock ring that permits incremental movement along a mandrel in either direction along the mandrel. The step ratchet mechanism may be actuated a designated distance by the application of pressure to the mechanism. The step ratchet mechanism may be ideal for using pressure to drive a downhole multi-position device. The modified body lock ring is adapted to both secure the mechanism at each set position as the mandrel is pumped down as well as allowing the mechanism to ratchet when the mandrel is pumped back.

Abstract: A method of designing a modular package: determining a package outline of a modular package assembly from package outline design data; determining seating plane and overall package length characteristics of the assembly from seating plane and package length design data; the design tool calculating minimum package height of the modular package assembly from the seating plane and package length design data; designing the dimensions and configuration of one or more subassemblies from subassembly design data; defining dimensions and configuration of a plurality of mechanical layers of a protective modular package cover given the defined package outline, the seating plane, overall package length, the minimum package height, and the subassemblies; defining an adhesive deposition strategy to join mechanical layers of the cover; designing the cover in accordance with the dimensions and configuration of the mechanical layers; and incorporating the assembly and the adhesive deposition strategy into a manufacturing asse

Abstract: A radial flow valve is disclosed which includes a plurality of flow openings, a first piston and a second piston, the first and second pistons being independently actuable relative to one another, and a sleeve operatively coupled to the second piston, the sleeve adapted to be positioned so as to cover the plurality of flow openings. A method is also disclosed which includes positioning a radial flow valve in a subterranean well bore having an upper zone pressure and a lower zone pressure, increasing a pressure within the valve to a value above the upper zone pressure to release a first piston within the valve and, after releasing the first piston, reducing the pressure within the valve to a value that is less than the lower zone pressure to thereby cause a second piston within the valve to move and thereby permit fluid flow through the valve.

Abstract: A protective modular package cover has first and second fastening sections located at opposing first and second ends with one or more subassembly receiving sections disposed thereto and is configured to fasten the protective modular package cover to a core. Each fastening section has a foot surface located on a bottom surface of a fastening section and configured to make contact with the core, a mounting hole configured to receive a fastener, and a torque element. Each subassembly receiving section is configured to receive a subassembly and has a cross member formed along the underside of the protective modular package cover. Activation of the first torque element transfers a downward clamping force generated at the fastening element to a top surface of one or more subassemblies disposed in the one or more subassembly receiving sections via the cross member of each of the one or more subassembly receiving sections.

Abstract: A radial flow valve includes a plurality of flow openings, a first piston and a second piston, the first and second pistons being independently actuable relative to one another, and a sleeve operatively coupled to the second piston, the sleeve adapted to be positioned so as to cover the plurality of flow openings. A method includes positioning a radial flow valve in a subterranean well bore having an upper zone pressure and a lower zone pressure, increase a pressure within the valve to a value above the upper zone pressure to release a first piston within the valve and, after releasing the first piston, reducing the pressure within the valve to a value that is less than the lower zone pressure to thereby cause a second piston within the valve to move and thereby permit fluid flow through the valve.

Abstract: A method of manufacturing a protected package assembly: providing a protective modular package cover in accordance with a modular design; selectively applying an adhesive to the cross member of each subassembly receiving section of the protective modular package cover that will receive a subassembly to form an adhesive layer of the protective modular package cover; encapsulating the one or more subassemblies in the subassembly receiving sections on the selectively applied adhesive layer to generate a protected package assembly; and controlling application of a distributed downward clamping force applied to the top surfaces of the subassemblies received by the protective modular package cover and useful for mounting the protected package assembly to a core through activation of fastener elements and cross members of the subassembly receiving sections.

Abstract: A pressure actuated valve is disclosed which includes a plurality of flow openings, and first and second pistons. The first and second pistons are independently actuatable relative to one another, and are releasable coupled to one another by a release sleeve. The pressure actuated valve also includes a closing sleeve that is operatively coupled to the second piston. In an initial position of the second piston, the closing sleeve covers or blocks the plurality of flow openings. The pressure actuated valve includes a ratchet mechanism coupling the release sleeve to the first piston, the ratchet mechanism being adapted to allow movement of the first piston between its initial position and an intermediate position and back to its initial position while allowing the release sleeve to release the second piston after a predetermined number of cycles of movement of the first piston between its initial position and the intermediate position and back to its initial position.

Abstract: A method of manufacturing a protected package assembly: providing a protective modular package cover in accordance with a modular design; selectively applying an adhesive to the cross member of each subassembly receiving section of the protective modular package cover that will receive a subassembly to form an adhesive layer of the protective modular package cover; encapsulating the one or more subassemblies in the subassembly receiving sections on the selectively applied adhesive layer to generate a protected package assembly; and controlling application of a distributed downward clamping force applied to the top surfaces of the subassemblies received by the protective modular package cover and useful for mounting the protected package assembly to a core through activation of fastener elements and cross members of the subassembly receiving sections.

Abstract: A method of designing a modular package: determining a package outline of a modular package assembly from package outline design data; determining seating plane and overall package length characteristics of the assembly from seating plane and package length design data; the design tool calculating minimum package height of the modular package assembly from the seating plane and package length design data; designing the dimensions and configuration of one or more subassemblies from subassembly design data; defining dimensions and configuration of a plurality of mechanical layers of a protective modular package cover given the defined package outline, the seating plane, overall package length, the minimum package height, and the subassemblies; defining an adhesive deposition strategy to join mechanical layers of the cover; designing the cover in accordance with the dimensions and configuration of the mechanical layers; and incorporating the assembly and the adhesive deposition strategy into a manufacturing asse

Abstract: A protective modular package cover has first and second fastening sections located at opposing first and second ends with one or more subassembly receiving sections disposed thereto and is configured to fasten the protective modular package cover to a core. Each fastening section has a foot surface located on a bottom surface of a fastening section and configured to make contact with the core, a mounting hole configured to receive a fastener, and a torque element. Each subassembly receiving section is configured to receive a subassembly and has a cross member formed along the underside of the protective modular package cover. Activation of the first torque element transfers a downward clamping force generated at the fastening element to a top surface of one or more subassemblies disposed in the one or more subassembly receiving sections via the cross member of each of the one or more subassembly receiving sections.