1066results about How to "Improve error" patented technology

The present disclosure describes a device and methods for safely and accurately placing screws into bones with a powered driving device. By employing multiple layers of fail-safe features and image-guidance systems, the powered driving device provides safe, accurate, and efficient screw placement. That is, the powered driving device may continuously monitor a screw advancement and placement and may automatically shutdown when improper placement is detected. Monitoring placement may be conducted by a microcurrent-monitoring system, by an image-guidance system, or by any other appropriate sensory system. Additionally, upon detecting that screw insertion is complete, the powered driving device may be automatically shutdown. As screw placement is continuously simulated by image-guidance in real time, multiple redundant verification steps are eliminated, providing highly accurate screw placement while decreasing clinician error, device contamination, and surgical time, the decreased surgical time associated with decreased patient-recovery time and associated medical costs.

A system and method for increasing the amplitude of accommodation and / or changing the refractive power of lens material of a natural crystalline lens is provided. Generally, there is provided methods and systems for delivering a laser beam to a lens of an eye in a plurality of sectional patterns results in the shaped structural weakening of the lens. There is also provided a method and system for determining adjustments to refractive errors in the lens of an eye relating to the treatment of presbyopia. The change to refractive error can be a predicted error or an actual error that has been determined.

Calibration methods and structures are provided for wireless communications devices that compensate across a signal bandwidth for relative gain and phase errors between spatial communication channels while utilizing existing transceiver structures and facilitating the use of frequency-domain spatial processing. The methods and structures are directed to time-division duplex (TDD) systems, and are particularly suited to those that incorporate orthogonal frequency division multiplexing (OFDM).

A system and method for increasing the amplitude of accommodation and / or changing the refractive power of lens material of a natural crystalline lens is provided. Generally, there is provided methods and systems for delivering a laser beam to a lens of an eye in a plurality of sectional patterns results in the shaped structural weakening of the lens. There is also provided a method and system for determining adjustments to refractive errors in the lens of an eye relating to the treatment of presbyopia. The change to refractive error can be a predicted error or an actual error that has been determined.

Graphic displays, which display information about process elements and the manner in which these elements are connected within a process, process modules, which simulate the operation of the elements depicted within the graphic displays and control modules, which perform on-line control activities within a process, may be communicatively connected together to provide a combined control, simulation and display environment that enables enhanced control, simulation and display activities. Smart process objects, which have both graphical and simulation elements, may used to create one or more graphic displays and one or more process simulation modules, each having elements which may communicate with one another to share data between the graphic displays and the process modules. Additionally, function blocks within control modules executed in the process plant may reference the elements within the graphic displays and the process modules (and vice versa) so that control modules may use simulated data developed by the process modules to perform better control, so that process modules may perform better simulation using actual pant data from the control modules, and so that the graphic displays may be used to illustrate actual process data and / or simulated process data as developed by the control modules and the process modules.

This relates to an improved delivery system for accurately loading and controlling the delivery of flowable material to a patient. Particularly, the system may be used in the injection of hard tissue implant materials such as PMMA under pressures up to about 4000 psi. The system includes an applicator with a first column having an implant material introduction section adapted to provide for effective loading of the implant material and a second column housing a piston. The introduction section has a larger size than that of a vessel section or bore in which the requisite pressure seal between the piston and bore wall is formed. The first column may include an introduction section flared open to an included larger funnel-like opening or a separate funnel may be used that interfaces with the introduction section to facilitate the introduction of implant material. Handles on the first and second columns to be turned relative to each other to advance the columns toward each other may be provided for manual actuation of the applicator to drive implant material through a cannula and deliver implant material to a desired site.

A discriminative grammar framework utilizing a machine learning algorithm is employed to facilitate in learning scoring functions for parsing of unstructured information. The framework includes a discriminative context free grammar that is trained based on features of an example input. The flexibility of the framework allows information features and / or features output by arbitrary processes to be utilized as the example input as well. Myopic inside scoring is circumvented in the parsing process because contextual information is utilized to facilitate scoring function training.

In some embodiments, a comprehensive computer system and method (See FIGS. 1, 1a, 2) for automating and facilitating the performing and processing of tasks, information transfer, and information storage associated with the home sale (See FIG. 3a), mortgage origination (See FIG. 3b), and settlement process (See FIG. 3c), and the home mortgage refinancing origination and settlement process (See FIGS. 1b, 1c, 2a) (or performing other business processes), over a distributed computing network are disclosed. One aspect of the invention is a greatly simplified process for a home buyer to search for a home and simultaneously receive accurate and competitive bids for mortgages and services from multiple lenders and service providers. The process includes an automated underwriting process which generates complete, accurate information on the costs of buying and owning a home at very beginning of the home buying process. Another aspect of the invention is greatly automating the entire sale, loan and settlement process.

Improved memory devices, circuitry, and data methods are described that facilitate the detection and correction of data in memory systems or devices by increasing the data area of user data being covered by the ECC code. This averages any possible bit errors over a larger data area and allows a greater number of errors to be corrected by a combining the ECC codes in the coverage area without substantially changing the overall size of ECC codes being stored over a single sector approach. In one embodiment of the present invention, the size of the data block utilized for ECC coverage is variable and can be selected such that differing areas of the memory array or data types can have a differing ECC data coverage sizes. It is also noted that the ECC algorithm, math base or encoding scheme can also be varied between these differing areas of the memory array.

An autonomous unmanned space flight system and planetary lander executes a discrete landing sequence including performing an initial velocity braking maneuver to remove velocity at altitude, coasting during which the planet surface is imaged and correlated to reference maps to estimate cross-track and along-track navigation errors and one or more lateral braking maneuvers are performed to reduce cross-track navigation error, and performing a terminal velocity braking maneuver(s) to reduce the along-track braking maneuver and remove the remainder of the velocity just prior to landing. A bi-propellant propulsion system provides a very high T / M ratio, at least 15:1 per nozzle. Short, high T / M divert maneuvers provide the capability to remove cross-track navigation error efficiently up to the maximum resolution of the reference maps. Short, high T / M terminal velocity braking maneuver(s) provide the capability to remove along-track navigation error to a similar resolution and remove the remaining velocity in a very short time window, approximately 3-15 seconds prior to touchdown. The propulsive efficiency frees up mass which can be allocated to a fuel to remove the unknown navigation errors, perform hazard avoidance and / or relocate the lander by flying it to another site or be allocated to additional payload.

A badge (26) for locating and tracking a hospital asset (11) includes a motion sensor (30) carried by the asset (11) that generates a motion signal when the asset (11) is in motion. The motion signal varies with changes in the speed of the moving asset (11). The badge (26) further includes a transmitter (34) coupled to the motion sensor (30) that transmits an information signal at a transmission rate that varies as a function of the variable motion signal. The badge (26) may be configured to provide fault tolerant reception by transmitting information in packets including periodic error codes.

A method of encoding data for transmissions from a source to a destination over a communications channel is provided. The method operates on an ordered set of source symbols and may generate zero or more redundant symbols from the source symbols, wherein data is encoded in a first step according to a simple FEC code and in a second step, data is encoded according to a second FEC code, more complex than the first FEC code. The first FEC code and / or the second FEC code might comprise coding known in the art. These steps result in two groups of encoded data in such a way that a low-complexity receiver may make use of one of the groups of encoded data while higher complexity receivers may make use of both groups of encoded data.

A DSP based SERDES performs compensation operations to support high speed de-serialization. A receiver section of the DSP based SERDES includes one or more ADCs and DSPs. The ADC operates to sample (modulated) analog serial data and to produce digitized serial data (digital representation of the modulated analog serial data). The DSP communicatively couples to the ADC and receives the digitized serial data. Based upon the known characteristics of the digitized serial data and the digitized serial data itself, the DSP determines compensation operations to be performed upon the serial data to compensate for inadequacies of the receiver and / or channel response. These compensation operations may be (1) performed on the analog serial data before digitization by the ADC; (2) applied to the ADC to modify the operation of the ADC; and / or (3) performed on the digitized serial data by the DSP or another device.

Methods and apparatus which characterize the ionospheric error across a network of GNSS reference stations are presented. The method relies on dual-frequency phase measurements in a geometry-free linear combination. The data are filtered for ambiguities and the characteristic parameters of the ionosphere. In combination with filter results from other combinations of phase measurements (ionosphere free combination), the physically-based model provides rapid and reliable ambiguity resolution.

The present invention relates to systems and methods for the measurement of analytes such as glucose. Raman and reflectance spectroscopy are used to measure a volume, of material such as a blood sample or tissue within a subject and determine a concentration of a blood analyte based thereon. The present invention further relates to a calibration method, constrained regularization (CR), and demonstrates its use for analyzing spectra including, for example, the measurement glucose concentrations using transcutaneous Raman spectroscopy.

This invention relates in general to vibroseis and, more specifically, but not by way of limitation, to the enhancement and / or signal strength optimization of low frequency content of seismic signals for use in surveying boreholes and / or subsurface earth formations. In embodiments of the present invention, physical properties of a seismic vibrator may be analyzed and used to provide for determination of a driving force necessary to drive a reaction mass to produce a sweep signal with enhanced low frequency content for injection into the ground for vibroseis. In certain aspects, the physical properties may be considered independent of any geophysical properties related to operation of the seismic vibrator.

An autonomous moving apparatus arranged to travel autonomously in a surrounding environment preferably includes: a distance measuring sensor arranged to output detection waves, detect a distance between the apparatus and an object which has reflected the detection wave based on a reflection state of the detection wave, and acquire information about the distance between the apparatus and the object which exists in the surroundings of the apparatus; an inclination sensor arranged to detect an inclination of the distance measuring sensor; and a control unit arranged to estimate the self-position in the surrounding environment and generate the global map of the surrounding environment based on the distance information. When the distance measuring sensor is determined to be inclined based on a detection result of the inclination sensor, the control unit stops estimating the self-position based on the distance information and stops generating the global map based on the distance information.

A constant detecting apparatus 15 comprising a detecting unit 26 and a calculating unit 27. The detecting unit 26 is structured comprising a rotation sensor 41, a torque sensor 42, a position sensor 43, a rotor temperature sensor 44, a winding temperature sensor 45, a phase voltage detector 46, and phase current detectors 47 and 47. The calculating unit 27 calculates the induced voltage constant Ke that changes depending on the motor temperature Tmag while the motor 11 is being driven based on each of the detected signals from the detecting unit 26, and at the same time, the d axis current Id and the q axis current Iq are calculated after elimination of the iron loss, and the d axis inductance Ld and the q axis inductance Lq in the actual operating state of the motor 11 are calculated.

An on-foot pedestrian navigation module useful for pedestrian navigation when operated with at least a control unit and another on-foot pedestrian navigation module, comprising (a) at least a first sensor unit and a second sensor unit, wherein each sensor unit including an up / down sensor adapted for sensing an ‘up’ condition and a ‘down’ condition associated with relative displacement of the module with respect to a surface, and a signal transmitter / receiver adapted, in response to an activation signal coming from a module controller, for generating a propagating signal (b) a module controller for controlling the operation of the module in response to a control signal coming from the control unit and (c) a communication unit for enabling said module to communicate with said at least the control unit and other module, thereby facilitating collecting motion data at the control unit and integrating the motion data with motion data coming from the other module, the motion data being indicative of a condition of each up / down sensor and receipt of the propagating signal by at least two sensor units of said other module, and wherein the motion data is useful for determining a momentary position of the pedestrian's foot during motion.

In some embodiments, a comprehensive computer system and method (See FIGS. 1, 1a, 2) for automating and facilitating the performing and processing of tasks, information transfer, and information storage associated with the home sale (See FIG. 3a), mortgage origination (See FIG. 3b), and settlement process (See FIG. 3c), and the home mortgage refinancing origination and settlement process (See FIGS. 1b, 1c, 2a) (or performing other business processes), over a distributed computing network are disclosed.

A direct conversion quadrature receiver and method are provided according to the invention. The receiver according to one embodiment includes a primary local oscillator (LO) that down-converts a received RF signal to a quadrature intermediate frequency (IF) signal. The receiver further includes a dithering controller responsive to the quadrature IF signal generated by the primary LO. The dithering controller communicates a feedback signal back to the primary LO. The feedback signal controls the primary LO in order to offset down-conversion of the RF signal by the quadrature IF signal. The dithering controller offsets the primary LO from a zero-IF signal in order to reduce a phase and gain error of the quadrature IF signal.

Systems and method for treating organic tissue of a patient's body in precisely controlled regions of the body such as the parathyroid glands. The systems and methods include introducing an energy or substance into contact with target tissue to control functionality of the target tissue and preventing the energy or substance from contacting surrounding non-target tissues sufficiently that functionality of critical non-target tissues is substantially not affected.

Use of a multilayer etching mask that includes a stud mask and a removable spacer sleeve for MTJ etching to form a bottom electrode that is wider than the rest of the MTJ pillar is described. The first embodiment of the invention described includes a top electrode and a stud mask. In the second and third embodiments the stud mask is a conductive material and also serves as the top electrode. In embodiments after the stud mask is formed a spacer sleeve is formed around it to initially increase the masking width for a phase of etching. The spacer is removed for further etching, to create step structures that are progressively transferred down into the layers forming the MTJ pillar. In one embodiment the spacer sleeve is formed by net polymer deposition during an etching phase.

An apparatus and system for providing improved monitoring errors in a medical setting. The apparatus includes a storage medium, display and scanner that allow medical personnel to quickly and reliably track and monitor samples collected from patients, such as information about the type, location, and timing of a collected sample. An unable to complete function labels incompletely collected samples or otherwise notifies the processing facility. Label sets and / or messages are generated to guide medical personnel when performing orders. Errors are linked to collection events for variance tracking. Temporary identifier labels are generated for containers and such when no order is pending. Order of draw procedures are communicated to medical personnel at the collection site.

A method and system for improving accuracy of a position correction data in a differential global positioning system (DGPS) using vehicle to vehicle (V2V) communication, capable of correcting a DGPS data received from a road side unit (RSU) into information calculated by a sensor, and providing neighbouring vehicles with the corrected value as the DGPS data using the V2V communication, are provided.

A method and apparatus of configuring the byte structure of a memory storage device, including a flash memory device, to enhance the security and error correction capability is described. In one embodiment, the method includes increasing the security of data stored in the storage device by encrypting data with a unique initialization vector and storing the initialization vector in the storage device. The method also includes using a unique initialization vector for encrypting data, to be stored in each datablock, each time data are encrypted. In one embodiment, the apparatus includes an AES controller that includes encryption and decryption modules to encrypt and decrypt data prior to writing data to or reading from the storage device. The apparatus also includes an encoder module and decoder circuits to encode and decode data prior to writing or reading from memory storage devices. The apparatus optionally includes a state machine that generates and provides the initialization vector and also activates different components of AES controller and ECC module depending on the operation of the device.