656 results about "Error state" patented technology

A medical robotic system comprises a number of components that may be monitored to determine their preventive maintenance needs by recording usage-related information for the monitored components into associated non-volatile memories. When usage of the component exceeds a specified usage threshold, the system displays a warning message on its display screen to have preventive maintenance performed for the component. If the usage continues without such maintenance and exceeds a higher usage threshold, the system displays an error message on its display screen and the system transitions into an error state during which medical procedures are not allowed to be performed. The usage-related information may also be communicated to a remote computer which gathers and processes usage-related information from a number of medical robotic systems to estimate resource requirements for timely performing preventive maintenance on the medical robotic systems, and anticipated service revenues from such maintenance.

A patient-worn energy delivery apparatus for imparting electrical therapy to the body of a patient responsive to an occurrence of a treatable condition includes a voltage converter for converting electrical energy from an initial voltage to a final voltage, and a defibrillator electrically coupled between the converter and the patient and having an energy reservoir for receiving the electrical energy. The defibrillator produces preshaped electrical pulses such as defibrillation pulses and cardioversion pulses. The apparatus additionally includes an energy delivery controller electrically coupled to the patient and the converter and the defibrillator. The controller causes the converter to provide the electrical energy to the defibrillator at a specific charging rate in response to an energy level in the reservoir. The apparatus may include a plurality of electrodes interposed between the defibrillator and the patient and each electrode preferably has an impedance reducing means contained therein. One embodiment of the apparatus may include a H-bridge to produce a positive-going pulse segment and the negative-going pulse segment within the biphasic exponential signals. The apparatus periodically measures the energy as it is being delivered to the patient and can pre-emptively stop or truncate the pulse in the event an error condition is detected, such as an overvoltage condition or if the energy level approaches a predetermined level. The electrical components which store and release the energy minimize the size and expense of the apparatus, while isolating the microcomputer from the high energy levels as the therapeutic pulse is delivered.

Method and apparatus for locating position of a satellite signal receiver is described. In one example, pseudoranges are obtained that estimate the range of a satellite signal receiver to a plurality of satellites. An absolute time and a position are computed using the pseudoranges at a first time. The absolute time is then used to compute another position at a subsequent time. In another example, a plurality of states associated with a satellite signal receiver are estimated, where the plurality of states includes a time tag error state. A dynamic model is then formed relating the plurality of states, the dynamic model operative to compute position of the satellite signal receiver.

It is an object of the present invention to improve reliability of defect management. By providing a plurality of management data areas each including a defect management area typically in a lead-in zone of a disc inner-side region enclosed by a circumference having a predetermined radius on a disc-shaped recording medium, reliability of the defect management can be obtained. In addition, by placing a plurality of the defect management areas (information areas Info1 and Info2) at locations, which are separated from each other in the radial direction of the disc-shaped recording medium, sandwiching a recording / reproduction condition adjustment area OPC having a relatively large size, the reliability of the defect management areas can be further improved. Furthermore, by providing each of the defect management areas with a plurality of recording areas, which include a currently used recording area for recording defect management information and spare recording areas each usable as a substitute for the currently used recording area, the currently used recording area can be replaced with one of the spare recording areas in accordance with an update count of the currently used recording area or error status of this currently used recording area.

A method and apparatus for providing three-dimensional navigation for a node comprising an inertial measurement unit for providing gyroscope, acceleration and velocity information (collectively IMU information); a ranging unit for providing distance information relative to at least one reference node; at least one visual sensor for providing images of an environment surrounding the node; a preprocessor, coupled to the inertial measurement unit, the ranging unit and the plurality of visual sensors, for generating error states for the IMU information, the distance information and the images; and an error-state predictive filter, coupled to the preprocessor, for processing the error states to produce a three-dimensional pose of the node.

A medical robotic system comprises a number of components that may be monitored to determine their preventive maintenance needs by recording usage-related information for the monitored components into associated non-volatile memories. When usage of the component exceeds a specified usage threshold, the system displays a warning message on its display screen to have preventive maintenance performed for the component. If the usage continues without such maintenance and exceeds a higher usage threshold, the system displays an error message on its display screen and the system transitions into an error state during which medical procedures are not allowed to be performed. The usage-related information may also be communicated to a remote computer which gathers and processes usage-related information from a number of medical robotic systems to estimate resource requirements for timely performing preventive maintenance on the medical robotic systems, and anticipated service revenues from such maintenance.

A system, method and data structure for error correction for use in the transmission of content data distribution networks uses a compressed memory, for example a bitmap, to identify portions of transmitted content data files where transmission errors have occurred. The error memory, is used to generate an error status report that is returned to a transmission controller via a low bandwidth back channel, for example the Internet. The information in multiple error status reports is aggregated by the control system of the transmitter and used to re-transmit those portions of previously transmitted content data files that were not properly received due to error. By re-transmitting only the data packets of the transmitted content data files that contain errors, overall transmission speed is increased and bandwidth usage is conserved.

Agents are instructed execute network tests during monitoring intervals. Results of the tests are stored. After expiration of a dampening window period the results are retrieved and evaluated. The evaluation is used to update an error state stored in a data structure in a database as required. Notification of detected errors is provided if certain notification dampening criteria are satisfied.

A display system includes a host that provides digital data, and a display that processes and displays the digital data, wherein the host and display are connected by connectors. The connectors generate a sensing signal that differs according to whether the host and the display are connected or disconnected. A host controller determines whether the display is authenticated by high-bandwidth digital content protection (HDCP), interrupts a digital data transmission when an HDCP authentication error occurs, and restarts the digital data transmission upon determining that the display changes to a connection state from a disconnection state based on the sensing signal. A display controller outputs the sensing signal to allow the host controller to determine a state of the display is as if the display is changed to a connection state from a disconnection state, when the display is in an error state causing the HDCP authentication error.

An apparatus for providing three-dimensional pose comprising monocular visual sensors for providing images of an environment surrounding the apparatus, an inertial measurement unit (IMU) for providing gyroscope, acceleration and velocity information, collectively IMU information, a feature tracking module for generating feature tracking information for the images, and an error-state filter, coupled to the feature track module, the IMU and the one or more visual sensors, for correcting IMU information and producing a pose estimation based on at least one error-state model chosen according to the sensed images, the IMU information and the feature tracking information.

A system and method for precision fastening of a fastener. The fastening system includes a motor and a sensor that provides a feedback signal from the motor to a controller. The controller compares the feedback signal to a threshold value to determine if an error condition exists. If the error condition exists, the controller oscillates a rotor to the motor between a first and a second position. In one construction, a resolver provides a signal to the controller representing a position of the oscillating rotor. The oscillating rotor vibrates the housing, thereby alerting an operator of the error condition. In one construction, the fastener device can alert the operator that the fastener is not tightened to a proper torque, and that the fastener is not rotated through a proper angle of rotation.

A motor starter system comprises solid state switches for connection to an AC line for controlling application of AC power to the motor. A fault contactor has contacts. A motor wiring circuit operatively connects the solid state switches and fault contactor contacts with motor winding terminals. A voltage sensor senses AC line voltage and motor terminal voltage. A control circuit controls operation of the solid state switches and the fault contactor, including de-energizing the fault contactor in an off mode where AC line power is not supplied to the motor winding terminals. The control circuit detects AC line voltage and motor terminal voltage in the off mode and detect an error condition responsive to sensed AC line voltage being substantially different from motor terminal voltage in the off mode.

A system and method to adaptively control a process of distributing video information over a network. Each client data terminal subscribing to video services has a performance level reporting unit which sends a performance level message Da indicating what resources and computing power the terminal has. Each terminal also has an error status monitor which sends an error status message De. A video coder produces coded data Dc by coding source video signals, based on the received performance level messages Da and error status messages De. The traffic of this coded data Dc is dynamically varied by a dynamic traffic controller, and a distribution unit transmits the resultant video stream Di over the network, using IP multicasting techniques. A video decoder in each client terminal adaptively decodes the received video stream Di.

Agents are instructed execute network tests during monitoring intervals. Results of the tests are stored. After expiration of a dampening window period the results are retrieved and evaluated. The evaluation is used to update an error state stored in a data structure in a database as required. Notification of detected errors is provided if certain notification dampening criteria are satisfied.

A method, apparatus, and computer instructions for halting input / output error propagation in the logically partitioned data processing system. All components associated with the bridge are identified to form a set of failed components in response to detecting an error state in a bridge within a set of bridges in the logical partitioned data processing system. An identification of the failed components is stored in which the identification is used by each partition during a boot process.

A sending node of a networked system includes an encoding module configured to receive a series of data groups with each data group comprising a data block comprising data bits, and control / status bits including at least one error status bit having a state indicative of a presence or absence of at least one type of data block error. The sending node is configured to generate for at least one of the data groups of the series an expected cyclic redundancy code (CRC) comprising a plurality of bits that is a function of the data block and control / status bits, not including the at least one error status bit. The sending node is further configured to encode the expected CRC with the state of the at least one error status bit to thereby generate for the at least one data group an encoded CRC comprising a plurality of bits.

Disclosed are systems and methods that time correlate input at a point of entry of consumer data of least two identifications for products, prescriptions, vouchers, or codes, uses positive correlation determinations for triggering output of predetermined information. The time correlation of identifications may be used to build a time correlation database, and thereafter use that database for targeted communications. Related inventions include an intelligent Y cable or the like to filter data transmitted from a scanner at a point of entry of consumer data, and a novel POS CS configured to receive bar codes that would otherwise cause the POS CS to enter an error condition.

The invention discloses a fault-tolerance autonomous navigation method of a multi-sensor of a high-altitude long-endurance unmanned plane. The method comprises the following steps of: firstly, carrying out theory analysis on work environment and work characteristics of three navigation sensors including GPS (Global Position System), CNS (astronomy) and SAR (Synthetic Aperture Radar), and establishing an observation linearity measurement equation by combining a geography system based on a position combined observation principle of inertia / GPS, inertia / astronomy and inertia / SAR under an airborne geography system; then analyzing error characteristics of a navigation sensor and simulating the output during the fault of GPS, and establishing a corresponding fault detection algorithm unit to carry out fault detection and isolation on a filter; and finally, designing and completing an inertia / GPS combined navigation system mathematic model based on the assistance of astronomy and SAR, and optimally evaluating the error state of the inertia navigation by means of federated filtering. The invention has high navigation precision, and can fully play the role of evaluating the error state quantity of an airborne inertia navigation system by the combined navigation of the multi-sensor under the geography system.

A system, method and data structure for error correction for use in the transmission of content data distribution networks uses a compressed memory, for example a bitmap, to identify portions of transmitted content data files where transmission errors have occurred. The error memory, is used to generate an error status report that is returned to a transmission controller via a low bandwidth back channel, for example the Internet. The information in multiple error status reports is aggregated by the control system of the transmitter and used to re-transmit those portions of previously transmitted content data files that were not properly received due to error. By re-transmitting only the data packets of the transmitted content data files that contain errors, overall transmission speed is increased and bandwidth usage is conserved.

Detection, notification and / or processing of events, such as errors associated with adapters, are facilitated. Hardware detects an event, places one or more adapters in an error state to prevent access to / from the adapters, and notifies the operating system of the event.

Disclosed are a system, a method, and a computer program product to provide improved error handling in an embedded system. When the embedded system encounters a fatal error, information pertaining to the error is saved and an indication that the error has occurred is also saved. The embedded system resets itself to allow normal operation to resume. Before or after the reset, the embedded system sets an indication of the prior error so that a human or a machine will be alerted to the fact that the embedded system had encountered the error. At some point in time, the error information may be retrieved, collected or sent for post error analysis. The error flag and / or error status is then cleared to remove the current error condition and / or allow a subsequent error to be managed.

The invention discloses an overcurrent and overvoltage-undervoltage drive protection system based on a SiC MOSFET. The system comprises an overcurrent detection unit, an overvoltage-undervoltage detection unit, a control unit, a drive unit, a clamping and soft turnoff unit and a first MOSFET. In combination with the characteristics of overcurrent protection of the SiC MOSFET, overvoltage-undervoltage protection of a gate and strong anti-interference property of a detection system, clamping of the gate and soft turnoff of the SiC MOSFET are realized when the number of error states is accumulated to a preset value. When the number of error states is not accumulated to the preset value, the gate is clamped and periodically reset, so that the stability of the SiC MOSFET in an application circuit is improved and the anti-interference property of the system is detected and fed back.

The invention relates to a speedometer-assisted vehicle-mounted dynamic alignment method. The method is technically characterized by comprising steps as follows: in an inertial navigation system, inertial navigation calculation is performed, and attitude heading, speed and position information is output and updated; mileage decomposition is performed by use of an attitude angle of vehicle displacement increment output and inertial navigation calculation of a speedometer, and speedometer navigation position calculation is completed; an error model of the inertial navigation system and an errormodel of navigation position calculation are taken as equations of propagation of an error state, an attitude angle error of the inertial navigation system is estimated and calibrated by use of a Kalman filter. Deep integration is performed through the Kalman filter by use of displacement increment information provided by the vehicle-mounted speedometer and gyroscope and accelerator data providedby an inertial measurement assembly, in the running process of a vehicle, a combined navigation technology of accurate alignment of attitude heading and correction function of position errors is completed, the starting process of the vehicle-mounted navigation system can be simplified, the reaction time is shortened and the maneuvering characteristics of a carrying vehicle are improved.

The invention aims to provide a relay contact state detection device capable of effectively detecting the state of a relay contact in an automotive high voltage circuit and a detection method thereof. The detection device comprises a power supply circuit, a failure predication unit, a high voltage current detection unit for detecting the current in the automotive high voltage circuit, a relay state detection unit for detecting the pull-in state of a relay and a prompt unit for prompting a failure, wherein the high voltage current detection unit, the relay state detection unit and the failure prompt unit are electrically connected with the failure predication respectively. The failure predication unit determines the state of the relay contact by detecting the current in the automotive high voltage circuit and the pull-in state of the relay and gives a prompt for alarming through the failure prompt unit when the relay contact is in an error state. The detection device of the invention has a simple structure, can effectively detect the state of the relay contact, and can timely remind a driver to repair break-down relay and reduce potential safety hazards in an automobile.

The invention discloses a double-shaft continuous rotation-based hybrid type platform inertial navigation system calibration method. The method comprises the following steps: (1) performing coarse alignment to obtain a coarse initial attitude matrix; (2) controlling an outer ring shaft and a platform body shaft of a platform system to rotate at the same angular speed, enabling an inner ring shaftto be under a locked state, and acquiring gyroscope and accelerometer output in the rotating process; (3) resolving an error state equation and an observation equation and calibrating gyroscope scalefactor error, gyroscope mounting error and accelerometer equivalent zero offset; (4) controlling an outer ring frame angle, an inner ring frame angle and a platform body frame angle to lock in a zerostate, rotating the platform body shaft by 180 degrees and locking, and acquiring output data of the gyroscope; (5) controlling the outer ring frame angle, the inner ring frame angle and the platformbody frame angle to lock in the zero state, rotating the outer ring shaft by 180 degrees and locking, and acquiring output data of the gyroscope; and (6) calculating the constant drift of the gyroscope. By the method, the calibration time is effectively shortened and the calibration efficiency is improved.

A battery management system and method for a battery pack that includes multiple battery cells are disclosed. The battery management system includes a detector coupled to the battery cells, multiple temperature sensors coupled to the battery cells, a current sensor coupled to the battery cells in series, and a processor coupled to the current sensor. The detector generates first monitoring signals corresponding to cell voltages across the battery cells. The temperature sensors generate second monitoring signals corresponding to temperatures of the battery cells. The current sensor generates third monitoring signals corresponding to currents of the battery cells. The processor determines whether an undesired condition is present according to the first, second, and third monitoring signals, wherein the processor calculates a plurality of factors according to the cell voltages and the combination of the temperature and the current upon detecting an abnormal condition if the summation of the multiple factors is larger than a threshold value. The battery management system and method is able to detect whether an undesired condition is present, and take protection measures, thus preventing the undesired condition from developing into a false state.

Provided is a method, system, and program for handling errors in a service program including service functions capable of being called from application programs. A call is received for one service function from a service function call within one application program. A series of test operations are performed when executing the service function call. Each test operation returns an identifier if the test operation failed where each identifier is associated with one error state. If one test operation failed, then the identifier for the failed test operation is transferred to an error handling agent, wherein the error handling agent accesses error information associated with the identifier and generates error information describing a specific cause of the error that caused the test operation to fail and then returns to the application program with a generic return code.