47results about How to "Improve read reliability" patented technology

A nonvolatile memory device includes a memory cell array including a plurality of nonvolatile memory cells each having a resistance corresponding to one of a plurality of first resistance distributions, a temperature compensation circuit including one or more reference cells each having a resistance corresponding to one among one or more second resistance distributions, and a data read circuit including a compensation unit and a sense amplifier, the compensation unit being adapted to supply compensation current to a sensing node, an amount of the compensation current varying based on the resistance of each reference cell, and the sense amplifier being adapted to compare the level of the sensing node with a reference level and to output a comparison result.

A read method of a non-volatile memory device includes reading an initial threshold voltage value of an index cell from threshold voltage information cells that store information indicating the initial threshold voltage, determining a current threshold voltage value from the index cell, and comparing the initial threshold voltage value and the current threshold voltage value to calculate a shifted threshold voltage level of the index cell. A read voltage is changed by the shifted threshold voltage level to read user data using the changed read voltage.

A read method of a non-volatile memory device includes reading an initial threshold voltage value of an index cell from threshold voltage information cells that store information indicating the initial threshold voltage, determining a current threshold voltage value from the index cell, and comparing the initial threshold voltage value and the current threshold voltage value to calculate a shifted threshold voltage level of the index cell. A read voltage is changed by the shifted threshold voltage level to read user data using the changed read voltage.

A nonvolatile memory device includes a memory cell array including a plurality of nonvolatile memory cells each having a resistance corresponding to one of a plurality of first resistance distributions, a temperature compensation circuit including one or more reference cells each having a resistance corresponding to one among one or more second resistance distributions, and a data read circuit including a compensation unit and a sense amplifier, the compensation unit being adapted to supply compensation current to a sensing node, an amount of the compensation current varying based on the resistance of each reference cell, and the sense amplifier being adapted to compare the level of the sensing node with a reference level and to output a comparison result.

The invention discloses a method and an apparatus for creating an elementary optical disc master with but a single layer to be applied to a disc substrate to form pits having ideal shapes and without berm buildup. These ideally shaped pits are improvements in the technology of disc mastering, due to the manufacturing and data playback advantages that are inherent in the ideally shaped pits. An optically active lamina consisting of a dye polymer solution of nitrocellulose and a increased dye additive is spin coated directly to a pregrooved polycarbonate substrate to enable the recording of data on the disc by laser means in the form of pits. The pits are created by having a data modulated laser focusing on the optically active lamina which reacts to the irradiation causing a pit to be formed. The resulting pit more often than not possesses a residual raised berm area surrounding the pit, in what is considered to be a less than ideal shape for a pit. The residual berm, however, is eliminated by an additional process and step of passing the recently recorded disc under a UV illumination source before application of a final conductive layer to the disc.

The present invention relates to the computer vision field, especially to a blurred license plate image identification algorithm based on image fusion and blind deconvolution. The algorithm comprises 5 steps: 1, multi-frame image fusion for enhancement of distinguishing degree of low-illumination images of a license plate; 2, blurred image processing based on the blind deconvolution algorithm; 3, license plate location and inclination estimation; 4, segmentation of license plate characters; and 5, character identification and output after segmentation of the license plate characters. The blurred license plate image identification algorithm based on the image fusion and the blind deconvolution is high in reading reliability of license plate characters, good in identification degree and good in robustness in the condition of blurred license plate and low-quality imaging of license plate images caused by low illumination at night or vehicle overspeed and the like; and moreover, the step calculation is simple, the high efficiency is maintained, and the timeliness can satisfy the requirement.

A nonvolatile memory device comprises a nonvolatile cell array comprising a memory cell and a reference cell, a clamping circuit electrically connected to the memory cell and configured to clamp a voltage applied to a data sensing line during a read operation, and a clamping voltage generation unit configured to generate a clamping voltage responsive to a first voltage having a level based on the reference cell, and to feed back the clamping voltage to the clamping circuit.

The present invention relates to the computer vision field, in particular to a license plate identification system based on integral channel features and the gray projection. Aiming at the specific problem of the license plate identification, the system comprises three steps of 1 license plate positioning; 2 license plate character segmentation; 3 character identification and output after the license plate character segmentation. The system of the present invention effectively overcomes the difficulties in the image processing that the acquired images are complicated in background, non-uniform in illumination and low in resolution, the license plates are old and dirty, etc., and an identification method provided by the present invention is high in license plate character reading reliability and good in identification degree and robustness, at the same time, is simple in step calculation, can keep a high efficiency, has a real-time performance capable of satisfying the demands, and has the important promotion effect for the road traffic and the parking lot vehicle management.

As memory geometries continue to scale down, current density of magnetic tunnel junctions (MTJs) make conventional low current reading scheme problematic with regard to performance and reliability. A body-voltage sense circuit (BVSC) short pulse reading (SPR) circuit is described using body connected load transistors and a novel sensing circuit with second stage amplifier which allows for very short read pulses providing much higher read margins, less sensing time, and shorter sensing current pulses. Simulation results (using 65-nm CMOS model SPICE simulations) show that our technique can achieve 550 mV of read margin at 1 ns performance under a 1V supply voltage, which is greater than reference designs achieve at 5 ns performance.

A read method of a semiconductor memory device includes performing a read operation on target cells by using a first read voltage, terminating the read operation on the target cells if, as a result of the read operation on the target cells, error correction is feasible, performing a read operation on first cells next to the target cells along a first direction if, as a result of the read operation on the target cells, error correction is unfeasible, performing the read operation again on the target cells by selecting one of a plurality of read voltages in response to a result of the read operation on the first cells and by using the selected read voltage for reading data of the target cells, and terminating the read operation on the target cells if error correction is feasible.

An antenna system that allows increasing the reading reliability of RFId systems by dynamically changing the shape or the polarization of the electromagnetic field radiated by the RPId reader. The system includes at least one reconfigurable antenna, a variable DC bias unit and a methodology to efficiently use the system in RFId applications. The system allows changing the direction in which the energy is radiated or the polarization of the radiated field in order to “move” the electromagnetic field and to also read RFid tags that receive faint signals with standard RFid systems. Polarization alignment between the reader's antenna and the transponder allows for maximum power transfer, while changing the direction of radiation allows concentrating the electromagnetic field towards the transponder.

A three-dimensional measuring machine (measurement device) which supplies a probe having a measurement head able to make contact with a measured object and a contact detection sensor which detects the contact of a measurement head with a measured object and outputs a touch signal; a displacement structure which displaces a probe along three axial directions orthogonal to one another; scale sensors which detect the position coordinates of a probe and output a coordinate detection signal; a control circuit board having an integrated circuit on which are installed a touch counter which counts touch signals and a scale counter which counts coordinate detection signals; and a latch controller which latches a touch counter value and a scale counter value at the same time.

To provide a semiconductor device capable of securely executing a reading operation to improve a reliability of read data, an IC tag including the semiconductor device, and a control method for the IC tag. A semiconductor device according to an embodiment of the present invention includes: a power supply voltage generating circuit for generating a power supply voltage based on a received radio signal; a power supply voltage generating circuit for detecting the power supply voltage; a memory area for storing predetermined data; a reading / writing circuit using different operation voltages for reading data from the memory area and writing data to the memory area; and a control circuit for executing a data reading operation for the memory area based on a detected power supply voltage.

The present invention belongs to the computer vision field and relates to a gray projection-based license plate character segmentation method. According to the specific problem of license plate character segmentation, the objective of the invention is to improve the accuracy and reliability of license plate character segmentation and satisfy a requirement for real-time performance. The method includes the following two steps of: 1, removing the license plate borders of an input license plate area image: the upper border and lower border of a license plate are removed, and the left border and right border of the license plate are removed; and 2, segmenting license plate characters. With the method of the invention adopted, difficulties caused by complicated picture background, the influence of whether and illumination, the burring of license plate regions of the license plates of old vehicles and the license plates of illegal vehicles, and the like in an image processing process can be effectively eliminated, and therefore, the high reliability of the reading of license plate characters is high, the recognition of the license plate characters is high, robustness is good, step calculation is simple, high efficiency can be maintained, a requirement for real-time performance can be satisfied, the accuracy of the license plate recognition of a monitoring system is improved, and road traffic and parking lot vehicle management can be greatly promoted.

An MRAM according to the present invention has: a memory cell array; a first word line and a second word line each connected to a group of memory cells arranged in a first direction; a plurality of blocks arranged in a matrix form; a common word line connected to a group of blocks arranged in the first direction; and a bit line pair connected to a group of blocks arranged in a second direction. Each block has a plurality of memory cells, and each memory cell has a first transistor and a magnetoresistance element. Each block further has a second transistor to which the plurality of memory cells are connected in parallel. A gate of the second transistor is connected to the common word line. A gate of the first transistor is connected to the first word line. One of source / drain of the first transistor is connected to the first bit line, and the other thereof is connected to one end of the magnetoresistance element and connected to the second bit line through the second transistor. The other end of the magnetoresistance element is connected to the second word line.

The invention discloses a low-illumination imaging license plate recognition method, and the method comprises the steps: inputting an original license plate low-illumination image obtained through a camera module into a multi-scale context aggregation network based on deep learning, and carrying out the image processing, so as to obtain a license plate image with an improved recognition degree; performing license plate positioning and license plate inclination correction processing on the license plate image to obtain a positioned license plate image; segmenting the positioned license plate image into a plurality of license plate characters; and recognizing each license plate character. The invention further discloses a license plate recognition system, computer equipment and a storage medium. According to the technical scheme, the problems that in an existing method, image details are not clear enough, recognition details are not accurate enough, and the processing effect often changes greatly according to different environments are solved.

A method for operating a non-volatile memory device which includes a plurality of memory cells serially coupled between a source selection transistor and a drain selection transistor, a first dummy memory cell coupled between the source selection transistor and the memory cells, and a second dummy memory cell coupled between the drain selection transistor and the memory cells includes applying a verification voltage to a gate of a selected memory cell, applying a first voltage to gates of unselected memory cells, and applying a second voltage that is lower than the first voltage to a gate of at least one of the first dummy memory cell and the second dummy memory cell, during a program verification operation.

An optical pickup apparatus aiming at reduction of adverse effect on a tracking control signal and a data signal by preventing the reflected light from the adjacent layers of a multilayer disc changing to a stray light. In this optical pickup apparatus, the reflected light from the optical disc including the stray light from the adjacent layer is once focused with a focusing lens and is then reflected with the reflection plate. A flat attenuation element is provided between the lens and the reflection plate parallel to the optical axis with inclusion of the optical axis under the condition separated from the reflection plate. The reflection plate reflects the reflected light from the relevant layer and the attenuation element shields the reflected light from the adjacent layer. The light returning to the focusing lens includes less influence of the stray light. This light is detected with a detector to become a control signal and a data signal.

In an optical disk drive, in order to cancel a lens offset which may occur when performing a seek followed by a read, a seek position must be set several sectors before a target position for the read, resulting in a delay in access time. A lens offset amount is measured when a seek followed by read is started, and how many sectors before a read target position a seek position must be set is determined on the basis of two parameters, namely, the lens offset amount and a number of seek tracks. Thereby, an optimum seek position at which the lens offset is canceled can be set with no waste, resulting in an improvement in access time.

The present application relates to a pouch location device (18) for a machine (10) for dispensing beverages or foods, and in particular to a device for enabling a soft pouch (31) containing beverage or food ingredients to be accurately located in a bar code reader (37). The pouch location device comprises a slot (17) for receiving at least an end of a flexible pouch. The slot (17) has an entry aperture (32) at one end, an end wall (34) at the opposing end, a substantially transparent window (30) defining the top of the slot, a spring biased platen (33) defining the base of the slot. The platen (33) defines the lower lip of the entry aperture (32) and is angled to taper the slot (17) towards the end wall (34).

An optical pickup apparatus aiming at reduction of adverse effect on a tracking control signal and a data signal by preventing the reflected light from the adjacent layers of a multilayer disc changing to a stray light. In this optical pickup apparatus, the reflected light from the optical disc including the stray light from the adjacent layer is once focused with a focusing lens and is then reflected with the reflection plate. A flat attenuation element is provided between the lens and the reflection plate parallel to the optical axis with inclusion of the optical axis under the condition separated from the reflection plate. The reflection plate reflects the reflected light from the relevant layer and the attenuation element shields the reflected light from the adjacent layer. The light returning to the focusing lens includes less influence of the stray light. This light is detected with a detector to become a control signal and a data signal.