135 results about "Transfer error" patented technology

An AC-to-DC power converter that is capable of generating a regulated, isolated DC voltage output from a power factor corrected AC voltage input with improved efficiency. The AC-to-DC power converter is a two-stage power converter including a PFC stage connected in series to a power conversion stage. The PFC stage performs power factor correction using a zero current switching technique, and the power conversion stage includes a zero voltage switched half-bridge converter. The power conversion stage includes a transformer for providing the isolated DC voltage output. The AC-to-DC power converter includes a single feedback control loop for transferring error information from the DC voltage output to the PFC stage, thereby obtaining regulation of the DC voltage output.

The present invention may be regarded as a video recording system and method of transferring a non-time-critical, error-intolerant data segment stored on a disk drive, which is responsive to a set of data transfer commands generated by a host processor and which is operating in a mode optimized for transferring time-critical, error-tolerant streaming data segments stored or to be stored on the disk drive. The method includes sending a sequence of data transfer commands generated by the host processor to the disk drive to transfer a respective sequence of time-critical, error-tolerant streaming data segments at a required data transfer rate. The method further includes selectively interposing a first data transfer command into the sequence of data transfer commands, the first data transfer command initiating a first transfer of the non-time-critical, error-intolerant data segment from a first storage location. The method further includes transmitting a data transfer error signal generated by the disk drive to the host processor, the data transfer error signal having a state that indicates whether any data transfer errors have occurred with respect to the first transfer of the non-time-critical, error-intolerant data segment. The method further includes selectively interposing a second data transfer command into the sequence of data transfer commands, the second data transfer command initiating a second transfer of the non-time-critical, error-intolerant data segment from a second storage location, thereby utilizing storage redundancy to achieve an accuracy required for the non-time-critical, error-intolerant data segment while maintaining the required data transfer rate of the sequence of time-critical, error-tolerant data segments.

An RNIC implementation that performs direct data placement to memory where all segments of a particular connection are aligned, or moves data through reassembly buffers where all segments of a particular connection are non-aligned. The type of connection that cuts-through without accessing the reassembly buffers is referred to as a “Fast” connection because it is highly likely to be aligned, while the other type is referred to as a “Slow” connection. When a consumer establishes a connection, it specifies a connection type. The connection type can change from Fast to Slow and back. The invention reduces memory bandwidth, latency, error recovery using TCP retransmit and provides for a “graceful recovery” from an empty receive queue. The implementation also may conduct CRC validation for a majority of inbound DDP segments in the Fast connection before sending a TCP acknowledgement (Ack) confirming segment reception.

The invention relates to the coding of speech at a variable bit rate, whereby the bit rates can vary from frame to frame, and more specifically to the methods and filters used for improving the quality of the decoded speech. In the solution according to the invention the weighting factors of the postfilter are not adapted on the basis of the momentary bit rate or the bit rate used in the coding of each frame, but the weighting factors are adapted according to the average bit rate calculated on the basis of a predetermined length of time. In addition to this, the weighting factors of the postfilter are also adjusted on the basis of whether the frame in question contains a voiced speech signal, an unvoiced speech signal or background noise. At frames containing an unvoiced speech signal or background noise, postfiltering is weakened so as to avoid the distortion of the signal tone because the postfiltering is adapted to a voiced signal. The weighting factors of the postfilter can also be adapted on the basis of the error rate or other parameter describing the quality of the signal or the data transfer channel. For example, postfiltering can conveniently be adjusted so that when the channel error rate and the amount of coding error increase, postfiltering is increased, whereby the effect of data transfer errors on the decoded speech signal is reduced and the tolerance of the system with regard to data transfer errors increases.

A method for detecting transfer errors in an address bus is provided. In this method, a first address parity is generated using a memory address. Next, at least two data error-correction-code (ECC) check bits are scrambled using the first address parity. Subsequently, the data ECC check bits are written to a memory and the data ECC check bits enable detection of transfer errors in the address bus. A system for detecting transfer errors in an address bus is also described.

An improved biopsy kit for the collection, storage, transportation, and processing of biopsy tissue samples is disclosed. The disclosed biopsy kit consists of a typical specimen container and an improved tissue cassette with adhesively attached polyvinyl alcohol foam pads on both the base and lid portions. An excised tissue sample is sandwiched between the pads upon cassette closure, simultaneously isolating and securing the sample in its original orientation. Superior wicking, absorbency, and moisture retention rate of these polyvinyl alcohol pads allows maximum tissue fixation as well as maintains sample integrity. Once the tissue is placed by the physician at the patient's side, it remains there until the tissue is ready to be processed. This eliminates transfer errors as well as tissue loss.

The invention discloses an automatic butt assembling method for a large part as well as a system. The method comprises steps as follows: kinematic parameters of a servo posture adjusting positioner under the loading condition are calibrated firstly, an actual mathematical model of a butt part is established according to measurement data of the butt part, the butt part is corrected or reworked through comparison of the actual mathematical model and an ideal mathematical model of the butt part, then the relative position between a butt feature point of the butt part and a support measurement point arranged on a support device is calibrated, the butt part is mounted on the servo posture adjusting positioner, the position of the butt part in an overall reference coordinate system is determined, then a path of the butt part is planned with the optimum matching algorithm, the driving amount of each shaft of the servo posture adjusting positioner is obtained through inverse solution, finally, the butt part is moved by the servo posture adjusting positioner, and butt assembly of the butt part is completed. According to the automatic butt assembling method for the large part as well as the system, transfer errors are reduced, and errors caused by utilization of the ideal mathematical model or non-measurable property of the butt feature point are avoided, so that the quality and the success rate of automatic assembly are guaranteed.

A method and system for monitoring data transfers over a one-way data link from a send node to a receive node. A send log file monitoring and transmitting module associated with the send node on a first server outputs a send log file containing information about data sent by the send node. A receive log file monitoring and transmitting module associated with the receive node on a second server outputs a receive log file containing information about data received by the receive node. A reconciliation module on a third server receives the send log file and the receive log file and identifies any data transfer errors by comparing the send log file with the receive log file. A web server is coupled to the reconciliation module to provide user access to the identified data transfer errors.

An imprint apparatus, which performs an imprint process for forming a pattern of a mold on a resin coated on a substrate, includes an imaging unit configured to image the resin on which the pattern is formed, and a controller configured to control the imprint process. When the pattern is continuously formed on the substrate, the controller compares an image of at least a partial area imaged by the imaging unit and an image of a reference state, which is obtained in advance, and when patterns each having a difference, which falls outside an allowable range, between the images are continuously formed, it determines a transfer error.

Methods and apparatus for reducing the impact of latency associated with decrypting encrypted data are provided. Rather than wait until an entire packet of encrypted data is validated (e.g., by checking for data transfer errors), the encrypted data may be pipelined to a decryption engine as it is received, thus allowing decryption to begin prior to validation. In some cases, the decryption engine may be notified of data transfer errors detected during the validation process, in order to prevent reporting false security violations.

The present invention provides a reliable and high-speed data transfer method that achieves a high transfer efficiency and a high application processing efficiency concurrently and a disk control unit (disk controller) using such a method. In reliable data transfer in which, when data is transferred from an initiator to a target, the data received by the target is checked for validity by using an error check code attached to the data, a transfer status indicating whether the data is valid is returned from the target to the initiator, and, if a transfer error occurring during the data transfer is detected by the transfer status, the initiator retries to transfer the data to the target, a data transfer method for logical records that are units of data transfer between the initiator and the target is disclosed. This method is characterized in that: when each logical record transferred by a transfer request issued by the initiator arrives correctly on the target, the target posts a completion status corresponding to the transfer request for the logical record to a completion queue existing in the target; a plurality of logical records in a block are batch transferred; the initiator confirms the transfer status at every batch transfer; and, for each logical record that meets a predetermined batch transfer condition, the target posts a completion status corresponding to the transfer request for the logical record to the completion queue existing in the target upon correct reception of the logical record.

Embodiments of the present invention include a storage-shelf-router-to-disk-drive interconnection method within a high-availability storage shelf amenable to dynamic reorganization in order to ameliorate error conditions that arise within the high-availability storage shelf. In one embodiment, each path-controller card within the storage shelf is interconnected to two storage-shelf routers on separate storage-shelf-router cards via two serial management links and two serial data links. Different types of errors that may arise within the storage shelf are carefully classified with respect to a number of different error-handling techniques, including local path failovers, single path failovers, error reporting and logging, and other types of error handling techniques. In many implementations, particular error handling methods are conifigurably associated with particular errors, in order to adapt error behavior in a storage shelf to the needs and requirements of a system that includes the storage shelf. Additional embodiments of the present invention concern detection and diagnosis of errors, in addition to handling errors that arise within a storage shelf.

Systems, method, and computer program products for utilizing a spare lane for additional checkbits. Systems include computer, storage or communications systems with bitlanes for transferring error correcting code (ECC) words in packets over a bus in multiple cycles, a spare bitlane available to the bus, a spared mode and an initial mode. The spared mode is executed when the spare bitlane has been deployed as a replacement bitlane for carrying data for one of the other bitlanes. The initial mode is executed when the spare bitlane has not been deployed as a replacement bitlane. The initial mode includes utilizing the spare bitlane for carrying one or more additional ECC checkbits. The initial mode provides at least one of a more robust error detecting function for the bus than the spared mode and a more robust error correcting function for the bus than the spared mode.

The invention discloses a quaternion-based five-coordinate spline interpolation control method, and relates to a numerical control system. In order to solve the problems that the transfer error between a CAD/CAM system and CNC, the discontinuity between segments destroys the track precision, and the movement speed becomes nonuniform and discontinuous, the quaternion-based five-coordinate spline interpolation control method comprises the following implementing processes: 1, CAM software reads track data on a curve of a parts design drawing, and establishes a CAM tool path; 2, the CAM tool path is converted into a numerical control code format of the five-coordinate spline interpolation, wherein the numerical control code format of the five-coordinate spline interpolation is divided into three formats: a linear-translation numerical control code format of the five-coordinate spline interpolation, a linear-rotation numerical control code format of the five-coordinate spline interpolation, and a universal numerical control code format of the five-coordinate spline interpolation; 3, converting the three numerical control code formats of the five-coordinate spline interpolation into a joint movement program through an inverse dynamics transformation formula; and 4, finishing processing parts. The quaternion-based five-coordinate spline interpolation control method is widely applied to the field of numerical control systems.

A method for processing sheet material, in particular papers of value such as bank notes, checks, etc., wherein different groups of sheet material are processed one after the other, the different groups of sheet material being separated for processing. A container for each group of sheet material is used for separating and processing each group of sheet material. The separating means or container thus delimits the individual groups of sheet material clearly from each other. Designing the separating means as a container obtains reliable separation of the individual groups of sheet material. Since the different groups of sheet material are already clearly separated and grouped before actual processing, one can avoid mixups, misallocations and transfer errors as can occur with later, simultaneous grouping of the different groups of sheet material.

The invention discloses a multi-camera system calibration method based on a multi-plane stereoscopic target. The multi-plane stereoscopic target is manufactured. At least three target planes of the multi-plane stereoscopic target are photographed by different cameras at the same time, and at least two target planes photographed by any two cameras coincide. The homography between the target plane and the photographed image plane is used to calculate the intrinsic parameters of the camera. The conversion relationship between each camera coordinate system and the world coordinate system corresponding to the coincident target plane is solved, and the conversion relationship between camera coordinate systems of each camera is solved, and the external parameters of the multi-camera system is determined. The calibration process of the invention is fast and simple, and the calibration result has high precision. Only one image needs to be photographed, and there is no transfer error; The process of target processing is simple. Feature circle contour and rectangular pattern can be easily detected.

The invention relates to a kinetic parameter determination method of an extended tooth contact considered crack gear rotor system. The method comprises the following steps: obtaining a basic parameter of a healthy gear and a basic parameter and a crack parameter of a crack gear; establishing a gear meshing rigidity model, which comprises matrix rigidity, of the gear; calculating the matrix rigidity of a driving wheel of the gear and the matrix rigidity of a driven wheel of the gear by a finite element method; determining a gear matrix rigidity correction coefficient of the meshing rigidity model which comprises the matrix rigidity; determining the gear tooth deformation of the gear by a method that a gear transferring error is solved to obtain extended tooth contact considered gear time varying meshing rigidity; obtaining the basic parameters of a shaft and a bearing of a gear rotor system; obtaining a rigidity matrix K of the gear rotor system; and according to the rigidity matrix K of the gear rotor system, constructing an extended tooth contact considered rotor system vibration response analysis model, and determining a system vibration response result of the healthy gear and the crack gear.

In the controller circuit of a non-volatile memory system, data is protected by CRC (cyclic redundancy code) between functional blocks of the controller: Before a data set is transmitted from one functional block (such the host interface) to another functional block (such as data encryption or ECC), corresponding CRC is generated and transferred with the data. At the second block, the data set can be checked with the CRC at the second block before it operates on the data. This allows the controller to check for internal transfer errors early, allow for corrupted data to be re-requested, such as from a host when this process is applied to a data write operation. After the second block finishes with the data, a new CRC can then be generated to protect the data on its next internal transfer. This arrangement can particularly useful for functional blocks that transform the data set.

This invention is directed to real time detection of occurrence of a transfer error and feedback of the detection result to a printing apparatus in consideration of a possible risk that a signal transfer error occurs on a transfer path that becomes longer as the printhead is elongated. To accomplish this, in a printhead configured by cascade-connecting a plurality of element substrates, information of a transfer error detected in real time in each element substrate during transfer of a print data signal is output to an element substrate on the next stage by taking account of information input from an element substrate on the preceding stage. Information containing pieces of information from all element substrates is output from an element substrate on the final stage.

The invention provides an error information transfer and escape method, an error information transfer and escape device and an error information transfer and escape system. The method includes: receiving a message sent by a server side and subjecting the message to error parsing so as to obtain error information; subjecting the error information to escaping according to a predefined error conversion standard; recording the error information subjected to escaping to a conversion error message and returning the conversion error message. The error information transfer and escape method, the error information transfer and escape device and the error information transfer and escape system have the advantages that the problem in the prior art that error codes are difficult to transfer and apply is solved, and defining and transferring error information in large-scale enterprise-level IT (information technology) systems are facilitated, so that the purposes that the error information is parsed correctly and transferred accurately are achieved, and better customer experience and a more perfect error code transfer system are provided.

An interface for controlling the transmission of data between integrated circuit (IC) chips. The interface comprises a data bus for transmitting data from a first integrated circuit chip to a second integrated circuit chip, and a control bus for transmitting control signals between the first and second integrated circuits. The first IC has a memory for receiving data for transmission to the second IC, and the second IC has a scheduler and a data output port, the scheduler being arranged to control the transfer of data from the memory of the first IC to the data output port of the second IC via the data bus. The interface is capable of stopping and reinitiating data transmission on detection of errors in transmitted data, and the interface may include a code transfer bus for transferring error detection code separately from associated data.

Charged-particle beam lithography method and system. The lithography system has a map creation unit and a lithographic data creation unit. The map creation unit creates a proximity effect correction amount map from pattern data supplied from a pattern data file, pattern layout information, a foggy error correction amount map, loading effect correction amount maps, a process error correction amount map, a transfer error correction amount map, proximity effect correction parameters, and a proximity effect correction map. The lithographic data creation unit creates lithographic data based on the pattern data from the pattern data file, creates shot time data based on the proximity effect correction amount map from the map creation unit, and attaches the created shot time data to the lithographic data.

The invention relates to a method for calibrating the relative spectral response characteristic of a CCD imaging device. The method comprises the following steps: A. taking a light source with known spectral radiation distribution as a measurement object, utilizing the CCD imaging device to be calibrated for the imaging of the measurement object, and acquiring and analyzing the image to obtain a measured value; B. changing the spectral radiation flux entering the CCD imaging device through adjusting the thermodynamic temperature of the light source and/or adopting a color filter; C. constructing an equation set of mathematical physics for describing the corresponding relation between the measured value and the relative spectral response characteristic according to the known equation of mathematical physics of radiative transfer of the CCD imaging device; D. taking the measured value of the CCD imaging device under different spectral radiation flux as known quantity and solving the equation of mathematical physics, so as to calibrate the relative spectral response characteristic of the CCD imaging device. The invention further discloses a system for calibrating the relative spectral response characteristic of the CCD imaging device. The method is simple and efficient, and can avoid the introduction of instrument measurement transfer errors.