Abstract: A reluctance machine includes a stator and a rotor. The stator and rotor have a same number of poles. The rotor is configured to rotate about an axis of rotation. Each stator pole is formed of a primary stator pole and an auxiliary stator pole. The auxiliary stator pole is axially aligned with the primary stator pole in the direction of the axis of rotation. Each rotor pole has a length extending in the direction of the axis of rotation sufficient to at least partially cover the primary stator pole and axially aligned auxiliary stator pole. The primary stator poles are actuated with an alternating magnetic field orientation, and the auxiliary stator poles are also actuated with an alternating magnetic field orientation. The field orientations for the primary and auxiliary stator poles are, however, opposite each other such that a primary stator pole its axially aligned auxiliary stator pole have opposite magnetic field orientations.
Abstract: A fail-safe level shifter switching with high speed and operational for a wide range of voltage supply includes a cascode module, and one or more speed enhancer modules. The cascode module receives one or more input logic signal for generating a plurality of output signals with a reduced switching time. The speed enhancer modules are coupled to the cascode module for facilitating faster charging and discharging of nodes of the cascode module and improving the robustness and operating voltage range of cascode module.
Type:
Grant
Filed:
May 12, 2009
Date of Patent:
July 10, 2012
Assignee:
STMicroelectronics Pvt. Ltd.
Inventors:
Amit Tandon, Promod Kumar, Abhishek Lal
Abstract: Exemplary mobile drying containers and related methods are provided. In one embodiment, the mobile drying container includes a first side wall, a second side wall, a first end wall, a second end wall having a gate, an interior bottom, an upper volume and a lower volume separated by a ventilated floor supported by support members, wheels positioned below the lower volume, and one or more support legs positioned below the lower volume to provide support between the mobile drying container and the ground. The upper volume holds the crop to be dried, and the gate of the second end wall is operable to open and provide a path to dump or remove the crop. The lower volume is operable to receive a flow of air from an opening to assist with the drying of the crop. The present invention also encompasses other embodiments and methods.
Abstract: A CMOS single photon avalanche diode (SPAD) design uses conventional, or at least known, CMOS processes to produce a device having a breakdown region in which the main p-n junction is formed of a deep n-well layer, and optionally on the other side, a p-add layer. The SPAD may also have a guard ring region which comprises the p-epi layer without any implant. The SPAD may have curved or circular perimeters. A CMOS chip comprises SPADs as described and other NMOS devices all sharing the same deep n-well.
Abstract: An accumulation and conveyor integrations system is provided which incorporates at least two separated conveying apparatus to convey, accumulate, and meter the output of product onto a downstream line. When a downstream apparatus goes offline, a method of controlling reentry or integration of upstream and downstream lines is provided. The system and method can maximize product output from the downstream line by enabling continued loading of an upstream conveyor at a given rate and subsequent downloading at a temporary increased rate.
Abstract: A portable housing capable of being carried by a certain person includes a circuit. The circuit includes a memory for storing private data concerning that certain person, a circuit operable to effectuate storage of the private data in the memory in a secure manner, and a processing unit operable to control access to the memory for purposes of reading private data concerning the certain person from the memory and storing private data concerning the certain person to the memory. The conditions under which access to the memory for read and write operations with respect to the private data is permitted are governed by parameters that are specified by the certain person to whom the stored private data concerns. A biometric sensor may also be included to capture identification information useful in implementing the operations for controlling access to the memory.
Abstract: A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid passages on the bit face. The blades extend radially outwardly to the gage. The continuous segments may be either straight or spiral in design. Furthermore, the design of the segments supports varying one or more of: diamond content, width, back rake angle and/or relief angle along a length of the segment.
Abstract: A zoom lens system includes a variator lens group, a compensator lens group and a third lens group. The compensator lens group is arranged to only partially compensate for movement of the variator group. In order to provide further compensation for the zoom lens, an image enhancer implement wavefront coding and artifact reduction techniques. The compensator group may be fixed or alternatively, its movement relative to the variator may be effected by a simple cam mechanism.
Abstract: An LED array includes a plurality of LED segments connected in a common cathode configuration at a common cathode node. A high side driver is operable responsive to segment control signals to selectively supply current to certain LED segments. A low side driver is provided to sink current from the common cathode node. A plurality of selectively actuated current sink paths are provided in each low side driver. A control logic circuit actuates a current sink path within the low side driver for each LED segment that is selectively supplied current by the high side driver. A substantially constant low side voltage drop through these sink paths is provided regardless of the number of LED segments that are supplied current by the high side driver so as to achieve a substantially constant LED segment brightness. A common anode configuration operating in an analogous way is also disclosed.
Abstract: A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid passages on the bit face. The blades extend radially outwardly to the gage. The continuous segments may be either straight or spiral in design. Furthermore, the design of the segments supports varying one or more of: diamond content, width, back rake angle and/or relief angle along a length of the segment.
Abstract: A method and integrated circuit for preserving a battery's charge and protecting electrical devices is disclosed. A maximum and a minimum battery voltage value at the output port are stored in a memory. A steady state battery voltage at the output port is measured and stored in the memory. A processor compares the measured steady battery voltage value to the maximum and the minimum battery voltage values. If the measured steady state battery voltage value is greater than the maximum battery voltage value, an over voltage state is reported by the processor. If the measured steady state battery voltage value is less than the minimum battery voltage value, a low battery voltage state is reported by the processor.
Abstract: An integrated-circuit semiconductor device includes external electrical connection pads on one face and electrical connection vias under said pads. The electrical connection vias are arranged with a defined pitch in a defined direction. Each via is respectively associated with one of a plurality of adjacent zones of the face. These zones extend perpendicularly to the pitch direction. The electrical connection pads are grouped in adjacent pairs. An insulation space is located between the pads of each pair of electrical connection pads. In a direction perpendicular to the pitch direction, the pads in the pair are spaced apart. The pads of each pair of electrical connection pads extend over a pair of adjacent zones and are associated with two adjacent vias.
Type:
Grant
Filed:
August 11, 2009
Date of Patent:
June 5, 2012
Assignees:
STMicroelectronics S.A., STMicroelectronics (Crolles 2) SAS
Inventors:
Eric Sabouret, Laurent Hoareau, Yves Salmon
Abstract: A cutter is configured with a diamond table made from a thin hard facing material layer of polycrystalline diamond bonded to a backing layer made from cemented tungsten carbide. The face of the diamond table includes a concavity formed with a curved shape wherein at least a portion of the face in a center of the cutter is recessed with respect to at least some portion of the face about the perimeter of the cutter. This concave curved shape is formed in the diamond table itself such that the diamond table has a varying thickness depending on the implemented concavity.
Abstract: A raised source-drain structure is formed using a process wherein a semiconductor structure is received in a process chamber that is adapted to support both an etching process and an epitaxial growth process. This semiconductor structure includes a source region and a drain region, wherein the source and drain regions each include a damaged surface layer. The process chamber is controlled to set a desired atmosphere and set a desired temperature. At the desired atmosphere and temperature, the etching process of process chamber is used to remove the damaged surface layers from the source and drain regions and expose an interface surface. Without releasing the desired atmosphere and while maintaining the desired temperature, the epitaxial growth process of the process chamber is used to grow, from the exposed interface surface, a raised region above each of the source and drain regions.
Type:
Grant
Filed:
December 6, 2010
Date of Patent:
May 29, 2012
Assignee:
STMicroelectronics, Inc.
Inventors:
Prasanna Khare, Nicolas Loubet, Qing Liu
Abstract: An integrated circuit includes a number of pads. The integrated circuit further includes a cascode transistor having an open drain connection to a first one of the pads. A bias generator circuit is included in the integrated circuit. The bias generator circuit has an output connected to a gate terminal of the cascode transistor. In a first mode of operation, the bias generator outputs a bias signal that is derived from an integrated circuit supply voltage present at a second one of the pads. However, in a second mode of operation provided when the integrated circuit supply voltage is not present, the bias generator generates the bias signal derived from a voltage present at the first one of the pads.
Abstract: The gripping element of a coiled tubing injector has a carrier and a removable gripping shoe mounted to the carrier. The removable shoe slides onto slots formed on the carrier and is floated on the carrier by inserting an elastomeric pad sandwiched between the carrier and shoe. A manually depressible spring along ones side of the carrier prevents the shoe from sliding out of the slots during operation of the injector.