80 results about "Scan types" patented technology

A method for eliminating front-line hidden bright of LED display device in scanning type includes detecting variation of line selection signal of said LED display device, generating a discharge control signal to discharge electric charge at output end of line actuator connected with positive pole of a front-line LED for eliminating off hidden bright of said front-line LED when certain LED is lightened up and variation of line selection signal of said LED display device is detected. The LED display device of scanning type applying said method is also disclosed.

The invention provides a method for non uniformity correction of range finding of an array push-scan type laser radar. An array push-scan type laser radar with N laser channels are used for detecting a target plate, the relative position of the array push-scan type laser radar and the target plate is changed, and the target plate is detected for M times, so laser radar data and total station data corresponding to each laser channel are obtained. By carrying out operation like coordinate transformation, a non uniformity correction model is established, and an actual range finding value of any one laser channel is used as a reference correction value to correct actual range finding values of other laser channels.

The invention relates to a scan type automatic zooming iris image acquisition system and acquisition method, wherein the acquisition system comprises an image acquisition unit and a control unit; the image acquisition unit comprises a camera, a chilled mirror, a light source, a focus-variable optical lens set and an image acquisition card; the control unit comprises a light source control circuit, a zooming motor control circuit, a zooming motor and a computer; the chilled mirror, the focus-variable optical lens set and the chilled mirror are connected together in turn with the central axial lines being at one straight line; the light source which is positioned around the chilled mirror is used to illuminate the eyes of acquisition object; the zooming motor which is connected with the focus-variable optical lens set is used to regulate the imaging distance of the focus-variable optical lens set to move between farthest and nearest positions; the image acquisition card is used to receive images collected by the camera and to transmit the images to the computer; the computer controls switch on/off of the light source through the light source control circuit; the zooming motor control circuit connects the zooming motor and the computer, while the computer controls the zooming motor control circuit to make the zooming motor rotate. The invention has the advantages of a simple structure, low cost and short acquisition time.

A document search apparatus capable of an index-type search and a scan-type search performs a search in a combination of the two search types while compensating for the disadvantages of the two search types with each other. A search query for index-type search and a search query for scan-type search are constructed based on a search query consisting of a logical formula of keywords. Then, a character 2-gram for performing an index search is set to shorten the whole search time, and the index-type search is performed. Finally, a scan-type search is performed on this search result of the index-type search.

A scan type digital X-ray imaging apparatus comprising an X-ray generator for emitting X-ray slit beams, an X-ray detector for detecting X-ray transmitted through an object to be examined, and an object fixing means disposed between the X-ray generator and the X-ray detector, for holding the object in an appropriate position for X-ray photography, in which X-ray beam scanning is performed in a manner that the X-ray slit beam is emitted from the X-ray generator for the object while the X-ray generator and the X-ray detector are synchronously moved in the same direction with the object interposed therebetween, thereby producing an X-ray image of the object. In the X-ray imaging apparatus, the scanning speed of the X-ray slit beam is controlled depending on the X-ray transmitted amount through the object to be examined detected by the X-ray detector during the X-ray beam scanning is performed, whereby soft and hard tissues appearing in the X-ray image are amended in each contrast and/or in each density.

A customizable and upgradable imaging system is provided. Imaging detector columns are installed in a gantry to receive imaging information about a subject. Imaging detector columns can extend and retract radially as well as be rotated orbitally around the gantry. The gantry can be partially populated with detector columns and the detector columns can be partially populated with detector elements. The system can automatically adjust an imaging operation based on installation information related to partial population or other factors such as scan type or subject specific information. This system can be a Nuclear Medicine (NM) imaging system to acquire Single Photon Emission Computed Tomography (SPECT) image information.

An electronic scan type ultrasound diagnostic instrument employing an ultrasound transducer which is constituted by an array of transducer elements in a predetermined direction and adapted to drive a plural number of adjacent located transducer elements in simultaneous or delayed action mode. Arrayed transducer elements are divided into a plural number of transducer assembly units in the arrayed direction. Each one of the transducer elements is provided with a separate electrode which is connected with a signal line separately from other transducer elements, and a common electrode which is connected commonly with one or a plural number of transducer elements. A signal line from a separate electrode of a transducer element is short circuited with a signal line from a transducer element in a different transducer assembly unit and connected together to a single wiring cable.

In order to generate a risk index of stress symptoms triggered by flashing lights on a scan type video display screen, a video signal processor is provided which operates such as to implement temporal filtering and spatial filtering on a video signal applied thereto every field and detect low temporal frequency components while excluding effects due to high spatial frequencies. A risk index generator receives the low frequency components from the video signal processor and determines the risk index based thereon.

The present invention relates to a plasma display apparatus of scanning a scan electrode Y with one or more scan types among a plurality of scan types. The present invention has an effect of preventing the excessive displacement current from beign generated by scanning the scan electrodes with any one of a plurality of scan types, and thus preventing electrical damage to the data driver integrated circuit. The present invention is preferred to include a plurality of scan electrodes, a plurality of data electrodes intersecting the plurality of scan electrodes, a scan driver for scanning the scan electrode with one scan type among a plurality of scan types in which an order of scanning the plurality of scan electrodes is different from each other in an address period, and causing the width of scan pulse supplied to a first scan electrode among the plurality of scan electrodes upon scanning the scan electrode to be different from the width of scan pulse supplied to a second scan electrode having a different scan order from the first scan electrode, and a data driver of supplying a data pulse to the data electrode corresponding to the one scan type.

An ultrasonic probe of a radial scan type mountable on an ultrasonic observation apparatus, which inputs and outputs M numbers of signals in parallel, comprises the following: N (N>M) numbers of ultrasonic transducers disposed on an outer periphery of a tip, and grouped into plural sensor element groups activated in sequence, each of which has M numbers of ultrasonic transducers; N numbers of first signal lines respectively connected to the N numbers of ultrasonic transducers for transmitting a drive signal for driving the ultrasonic transducers and an echo signal from within a living organism; M numbers of second signal lines connected to the ultrasonic observation apparatus; and a multiplexer disposed between the first signal lines and the second signal lines, which selectively switches M numbers of the first signal lines for respectively connecting to the second signal lines according to the sensor element group to be activated.

A scan type exposure apparatus wherein a pattern of an original is lithographically transferred to a substrate sequentially while the original and the substrate are scanningly moved relative to exposure light, the apparatus including a photodetector disposed at a position optically conjugate with the original, and a storing device for storing correction information with respect to an output of the photodetector, in relation to different positions of the original to be illuminated with the exposure light, such that, in the lithographic pattern transfer, the output of the photodetector can be corrected by use of the correction information.

The present invention relates to an apparatus and method for driving a plasma display panel, and more particularly, to a scan drive apparatus and method of a plasma display panel. The present invention includes a data conversion unit converting video data to converted video data suitable for the PDP, a subfield mapping unit mapping a subfield corresponding to the converted video data, a data comparison unit computing a size of a displacement current by comparing video data of a cell bundle including at least one cell situated on a specific scan line to video data of a cell bundle situated in vertical and horizontal directions of the cell bundle according to each scan type of a plurality of scan types, and a scan sequence decision unit deciding a scan sequence according to the scan type having a small displacement current inputted from the data comparison unit.

A push-scan type space camera image on-orbit real-time restoration method. The method is based on a relatively mature linear filtering method, components except for frequency domain information of an image to be restored in a frequency domain expression of the linear filtering restoration method are separately put forward and are converted to a spatial domain, a main part of energy distribution in the spatial domain is captured as a small-sized spatial domain deconvolution template, and in combination with an embedded hardware system, spatial domain convolution real-time restoration of ground scene information obtained by a camera is performed, thereby solving the problem of real-time restoration of a space camera image. By adoption of a space camera system provided by the invention, a degraded remote sensing image is no longer output, and a reconstructed image by estimation of restoration of a photographed scene is output.

The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus and driving method thereof, in which scan electrodes are scanned according to one of a plurality of scan types and a last sustain pulse of sustain pulses applied to scan electrodes or sustain electrodes is controlled. The plasma display apparatus of the present invention comprises a plasma display panel comprising a plurality of scan electrodes, a plurality of sustain electrodes, and a plurality of data electrodes crossing the plurality of scan electrodes and the sustain electrodes, and a controller for scanning the scan electrodes using one of a plurality of scan types in which the order of scanning the plurality of scan electrodes is different in an address period, applies a data pulse to the data electrodes corresponding to one scan type, and controls a difference between an application time point of a last sustain pulse of sustain pulses, which are applied to the scan electrodes or the sustain electrode in a sustain period subsequent to the address period, and a application time point of a reset pulse, which is applied to the scan electrodes in a reset period of a next sub-field, to be greater than a difference between application time points of the two sustain pulses, in at least one of sub-fields of a frame.

A sonar system for parallel scan type focused ultrasonic-field tomography is composed of signal acquisition module, motor controlling and moving module, parallel scan membrane type sonar device, and computer.

The invention relates to a push-scan type optical remote sensing load original image bad line automatic detection method and system. The method comprises the following steps: reading an original image to be detected; setting an initial effective column of the original image, and by taking the initial valid column as a reference column, simultaneously scanning the two sides of the reference column; calculating a difference of a normalization exponent between a current column and the reference column in the scanning process, and comparing absolute value of the difference with a threshold T; if the absolute value of the difference is greater than the threshold T, marking that the current column is an invalid column; otherwise, marking that the current column is a valid column, taking the current column as a reference column of a next comparison process, and repeating the step until all columns are marked; and counting the quantity n of all invalid columns, and taking a ratio of the quantity n of all the invalid columns to the total quantity number N of the original image as a bad line rate. According to the method and system provided by the invention, bad lines in the original image in an optical remote sensing load in-orbit operation process can be automatically detected.

There is provided a plasma display apparatus which scans the scan electrodes (Y) with at least one scan type among a plurality of scan types and a driving method thereof. Therefore, it is possible to prevent an excessive displacement current and thus protecting a data driver integrated circuit from electrical damage, by scanning the scan electrodes (Y) with at least one scan type among the plurality of scan types. The plasma display apparatus comprises a plurality of scan electrodes; a plurality of sustain electrodes formed in parallel to the scan electrodes; data electrodes intersecting the scan electrodes and the sustain electrodes; a scan driver scanning scan electrodes with one scan type among a plurality of scan types having different scan orders which scan the plurality of scan electrodes in an address period; a data driver supplying data to the data electrodes corresponding to the one scan type; and a sustain driver supplying a first sustain bios voltage that is less than a second sustain bios voltage supplied to the sustain electrodes in the address period from a setdown period of a reset period before the address period to a period before a first scan pulse is supplied to the scan electrodes.

A fall detection device and a passenger transporter, which can reliably detects the fall of a user (or a passenger). The fall detection device possesses scan type distance sensors (7); the scan type distance sensors (7) are arranged at each entrance and exist (2, 3) near the entrance and exist of a lower layer station. A laser beam is emitted horizontally in the scan area of a floor layer plate (4) and a passage (6) for accessing. The scan type distance sensors calculate the standard deviation of the data distance change with time of the data in the preset detection area according to the detected distance at each angle, and the standard deviation of the standard deviation is caculated. Under the condition that the standard deviation of the standard deviation is taken as the threshold, the surface dimension (which is the length) of the object in the area is caculated, and when the surface dimension (which is the length) of the object continuously exceeds the threshold, the state is determined to be a fall state.

The invention provides an asset detection method and device and electronic equipment, and the method comprises the steps: obtaining an asset detection task; extracting a scanning type included in the asset detection task and a detection strategy corresponding to the scanning type; identifying a surviving asset based on the scanning type and a probing policy, wherein the scanning type indicates probing one or more of a surviving host, a surviving port, and a service fingerprint. According to the invention, the scanning type can be self-defined, and the identification of the survival assets is completed according to the detection strategy corresponding to the scanning type included in the asset detection task, so that the problem that the detection range is relatively limited is solved, and the method can be suitable for asset detection in various service scenes; meanwhile, by detecting one or more of the survival host, the survival port and the service fingerprint, the accuracy of a detection result is improved.

The present invention provides a touch detection method and apparatus. The touch detection apparatus includes: a plurality of sensor nodes comprising a single area node configured as a part of a single sensor pad among sensor pads disposed in multiple rows and columns on a single layer, and a shared area node configured so that parts of at least two sensor pads are alternately arranged; a touch detection unit configured to detect a first touch generation signal according to a change in touch capacitance generated between each sensor pad and a touch generation means, and to detect a second touch generation signal according to a change in mutual capacitance generated between sensor pads adjacent in a first direction; and a touch information processing unit configured to process touch information generated in the single area node and the shared area node based on the first and second touch generation signals.