358results about How to "Speed efficient" patented technology

An actively controlled rotary steerable drilling system for directional drilling of wells having a tool collar rotated by a drill string during well drilling. A bit shaft has an upper portion within the tool collar and a lower end extending from the collar and supporting a drill bit. The bit shaft is omni-directionally pivotally supported intermediate its upper and lower ends by a universal joint within the collar and is rotatably driven by the collar. To achieve controlled steering of the rotating drill bit, orientation of the bit shaft relative to the tool collar is sensed and the bit shaft is maintained geostationary and selectively axially inclined relative to the tool collar during drill string rotation by rotating it about the universal joint by an offsetting mandrel that is rotated counter to collar rotation and at the same frequency of rotation. An electric motor provides rotation to the offsetting mandrel with respect to the tool collar and is servo-controlled by signal input from position sensing elements such as magnetometers, gyroscopic sensors, and accelerometers which provide real time position signals to the motor control. In addition, when necessary, a brake is used to maintain the offsetting mandrel and the bit shaft axis geostationary. Alternatively, a turbine is connected to the offsetting mandrel to provide rotation to the offsetting mandrel with respect to the tool collar and a brake is used to servo-control the turbine by signal input from position sensors.

A prosthetic tri-leaflet valve formed by involuting a portion of a tubular structure inside itself. The valve can be made by a method comprising providing a tubular segment in which three equidistant longitudinal incisions are made in one end of the tube creating three flaps which are involuted, i.e., folded, in toward the inside of the tube and the edges of the flaps secured to the inner wall of the tube to form leaflets. The tube can be formed of a single sheet of synthetic, organic or biological material and can be solid, woven, braided or the like. A braided configuration permits the valve to be annularly compressed and delivered to the site using a minimally invasive delivery mechanism, then expanded at the implantation site.

Bacteriorhodopsin protein variants and methods using the bacteriorhodopsin variants for performance in holographic and three-dimensional (3D) memory storage devices are described. The amino acid and chemical modifications of bacteriorhodopsin provided herein achieve greatly enhanced protein performance. The memory storage devices write, read and erase data proficiently. The bacteriorhodopsin protein variants are useful in optical memory storage and associative processor systems. Irradiation of the light-sensitive protein with light of known wavelength causes the protein to switch between different states. The variants enter the branched photocycle via a single or a two photon process and form the permanent ‘Q’ state more efficiently than the wild-type bacteriorhodopsin protein. This branching photocycle of the variants is exploited in the fabrication of 3D memory storage devices.

The invention relates to a method of more efficient data transmission, in particular transmission of structured data, such as web pages, in a system comprising a server means and a client means which are interconnected via a plurality of proxy means, including a server proxy means and a client proxy means.

The present invention provides a very flexible, digital system for capturing and storing panoramic images using progressive scan (that is, non interlaced) technology. The system includes a digital image input device and an associated control computer. Since the image capture device is digital it can be easily and flexibly controlled by software in the control computer. The image input device has six lenses positioned on the six faces of a cube. While the image input system can have other lens configurations, the use of six lenses in a cubic configuration is optimal for a system that is used to capture a spherical panorama. The six lenses simultaneously focuses different images on six CCDs (Charge Coupled Devices). The image input device also includes an embedded controller, and data compression circuitry. The embedded controller controls the exposure time of the CCDs (i.e. the effective aperture and effective shutter speed) and reads image data from the CCDs. The image data read from the CCDs is compressed, multiplexed, and sent to the control computer. The control computer stores the images in frames, each of which have one image from each of the six lenses. Each frame includes six images that were simultaneously recorded and any associated information, such as audio tracks, textual information, or environmental information such as GPS (Global Position System) data or artificial horizon data. The control computer includes a user interface which allows a user to specify control information such as frame rate, compression ratio, gain, etc. The control computer sends control information to the embedded controller which in turn controls the CCDs and the compression circuitry. The images can be sent from the control computer to a real time viewer so that a user can determine if the correct images are being captured. The images stored at the control computer are later seamed into panoramas and made into panoramic movies.

A transform-enabled integrated circuit for use in cryptographic proof-of-work systems is provided. The transform-enabled integrated circuit includes a transformation block embedded among other circuitry components within the cryptographic datapath of the transform-enabled integrated circuit. The transformation block may be configured at a time subsequent to the manufacture of the integrated circuit to embody as circuitry any one of a plurality of mathematical transformation functions, thus enabling a user to systemically modify the results of cryptographic operations performed by the integrated circuit while retaining the high performance and efficiency characteristics of application-specific integrated circuits. Embodiments of the technology disclosed herein provides an hereto unachievable level of flexibility in the deployment of application-specific integrated circuits within proof-of-work verification systems, such as private block chain systems, public block chain systems, digital rights management, secure token and other cryptography-related fields.

A two mode power-split electric hybrid system and a method of control said hybrid system. The hybrid system is comprised of an engine, a transmission, an energy storage device and a control system for effecting said control method. Said transmission is a reconfigurable power split system, comprising a power-splitting device and an output power path selecting device. The power splitting device includes a compound planetary gear system and two electric machines which form a local series electric hybrid system. Said transmission regulates the output power state of said hybrid system by controlling power flow within said local series hybrid system. The hybrid system provides at least two operating mode, an output power split mode and a compound power split mode. Said control system includes multiple controllers and control modules. In accordance with the operating conditions of the hybrid system, said control system computes and sets system power requirement, allocates ob board power resources and sets engine operating speed and torque. In addition, said control system sets the operation mode of the transmission and controls the engine speed by adjusting operating torque of electric machines, based on the differential signal between reference engine speed and actual engine speed. Said control system is also capable of controlling engine torque through engine controller.

An internal combustion engine has a plurality of cylinders, and each cylinder has at least one first and one second exhaust port with associated respective first and second exhaust valves. At least one first and one second exhaust manifold are flow-connected to the respective first and second exhaust ports. A turbo unit for supercharging the charge air delivered to the cylinders comprises at least one first and one second exhaust gas turbine respectively flow connected to the first and the second exhaust manifolds. An exhaust gas chamber flow-connects the first and the second exhaust manifolds upstream of the exhaust gas turbines. The first and second exhaust valves can be deactivated/activated during operation. A throttle valve in the exhaust gas chamber may assume a closed position in order to separate the first and the second exhaust manifolds. A method of operating includes opening and closing different valves at different engine speeds.

A process for continuously extracting oil from a solid or liquid oil-bearing material comprises (a) removing air from the extraction system, (b) introducing an inert gas into the extraction system at a pressure sufficient to maintain a normally gaseous solvent in liquid state, (c) introducing an oil-bearing material into a silo, (d) passing the oil-bearing material from the to a jet pump mixing device, (e) introducing a liquified normally gaseous solvent into the jet pump mixing device, (f) mixing the oil-bearing material and the solvent in the jet pump mixing device for a time sufficient to permit complete wetting of oil-bearing material by the solvent to form a mixture, (g) heating the mixture to near supercritical conditions; (h) passing the mixture through an extractor having a screw conveyor adapted to rotate at a first rpm range and a centrifugal drum adapted to rotate at a second rpm range, (i) treating the mixture within the extractor in such a manner that supercritical temperature and pressure are attained, wherein treating the mixture includes a combination of increasing the rpms of the centrifugal drum, increasing the temperature inside the extractor and increasing the inert gas pressure inside the extractor, (j) extracting oil from the mixture by pressure diffusion provided by the combination of increased rpms, increased temperatures and increased inert gas pressures at supercritical conditions, (j) removing liquids extracted from the mixture through a liquids exit port, and (k) removing solids extracted from the mixture through a solids exit port.

A method and system unifying existing data of a target industry from existing sources of the data by designing a data model by applying varying data integrity methods to define characteristics, features and/or functions of items in the target industry as data elements, electronically reading, parsing and transforming data from existing electronic data sources of the target industry to input to the data model, designing user interfaces to the data model, the user interfaces corresponding to user segments of the target industry, and dynamically maintaining normalization of the data model according to the varying data integrity methods during any type of access to the data model by the user segments. A data entry access to the data model comprises dynamically constructing search indexes, each search index defined as a unique data field and a text searchable concatenation of other fields' data in any given data table of the data model.

A mechanical power transmission system for transforming and delivering power effectively and efficiently using external pressure to propel a vehicle. The mechanical power transmission system includes a case; rotational members; a gear set being in operable communication to at least one of the rotational members; and a clutch system being in operable communication to the gear set and using external fluid pressure from a fluid source to effectively change speeds.

Video tracking systems and methods include a peripheral master tracking process integrated with one or more tunnel tracking processes. The video tracking systems and methods utilize video data to detect and/or track separately several stationary or moving objects in a manner of tunnel vision. The video tracking system includes a master peripheral tracker for monitoring a scene and detecting an object, and a first tunnel tracker initiated by the master peripheral tracker, wherein the first tunnel tracker is dedicated to track one detected object.

The invention discloses a system and method for full disk encryption based on hardware. The method comprises the following steps: (1) performing registration and binding on a blank encryption hard disk of a host and a certification UKey through a registration center; storing a certification program and an identity key to a reserved area of the encryption hard disk; storing the identity key, an encryption Key and the certification program through the UKey; (2) prior to electrification of the host, inserting the UKey in the host; (3) after electrification, executing encryption hard disk and UKey mutual authentication; (4) after the authentication is successful, through the encryption hard disk, storing the Key obtained from the UKey in a buffer area memory undergoing power down loss; through an encryption and decryption module, using the Key to decrypt data and starting an operating system of the host; and (5) after the operating system is started, through the encryption and decryption module, utilizing the Key to decrypt read data, encrypt read-in data and then store the read-in data to an encrypted data storage area of the encryption hard disk. The system and method for full disk encryption based on the hardware greatly improves hard disk data security.

The invention relates to a chaos medical image encryption method applied to privacy protection, and belongs to the technical field of image encryption. The chaos medical image encryption method includes the steps that driving is carried out through three independent logistic chaotic maps, in the scrambling stage, each pixel point in an image is exchanged with another pixel point, and the position of a target pixel point is generated by two logistic chaotic maps; key streams used in the diffusion stage are generated by the third logistic chaotic map; in the key stream generating process, each key stream element is controlled by plaintext pixels to conduct circulating shifting operation to achieve the aim of relating the key streams and plaintexts. By means of the medical image encryption method, the scrambling effect and the scrambling speed overall performance are superior to those of an existing scrambling method, and the overall speed of an encryption system is remarkably superior to a common grouping encryption method in the modern cryptography; the cryptography analysis results show that the provided encryption method can effectively resist to various common attack techniques.

Provided are a data storage device using magnetic domain wall movement and a method of operating the same. The data storage device includes a magnetic layer having a plurality of magnetic domains, a write head provided at an end portion of the magnetic layer, a read head to read data written to the magnetic layer, and a current controller connected to the write head and the read head. The method of operating the data storage device includes reading data of an end portion of the magnetic layer using a read head provided at the end portion of the magnetic layer in which a write head is provided at the other end portion thereof, moving a magnetic domain wall of the magnetic layer by a distance corresponding to the length of one magnetic domain toward the end portion, and writing the read data to the other end portion of the magnetic layer using the write head and a current controller provided between the write head and the read head.

Apparatus and method are disclosed for converting an internal combustion engine from a normal engine operation (20) to an engine braking operation (30). The engine has an exhaust valve train containing at least one exhaust valve (300a or 300) and an exhaust valve lifter (200). The apparatus has an actuation means (100) including a dedicated load supporting system and a hydraulic system. The hydraulic system is integrated into the exhaust valve train and has a hydraulic piston (160) that can slide between an inoperative position (0) and an operative position (1). In the inoperative position (0), the hydraulic piston (160) is retracted and separated from the dedicated load supporting system, and the actuation means (100) is disengaged from the at least one exhaust valve (300a or 300). In the operative position (1), the hydraulic piston (160) is extended and engaged with the dedicated load supporting system, and the actuation means (100) opens the at least one exhaust valve (300a or 300) for the engine braking operation (30). The dedicated load supporting system includes a dedicated valve lifter (200b) for the engine braking operation (30). The dedicated load supporting system may also includes a housing (125) that is used to hold the at least one exhaust valve (300a or 300) open when the hydraulic piston (160) is at the extended or operative position (1), which is reached after the at least one exhaust valve (300a or 300) is actuated by the normal exhaust valve lifter (200). The apparatus also has a control means (50) for moving the hydraulic piston (160) between the inoperative position (0) and the operative position (1).