109results about How to "Clear signal" patented technology

An apparatus and method for controlling power of a display device is disclosed. Dynamic contrast is widened by controlling contrasts of each LED in the backlight of the display device. The apparatus comprises a video signal analyzer, a liquid crystal display (LCD), vertical gate drivers and horizontal drain drivers, a backlight, a power controller, and a controller. By controlling each LED, clearer video signal, lower dissipating power, and lower heat can be achieved.

A memory module includes a memory chip MC1 disposed at a position opposite to a memory buffer via a module substrate, a memory chip MC3 disposed at a position not opposite to the memory buffer via the module substrate, and a memory chip MC11 disposed at a position opposite to the memory chip MC3 via the module substrate. A branch point at which a wiring part connected to the memory chip MC1 and a wiring part connected to the memory chips MC3 and MC11 are branched is positioned at the memory buffer side from the viewpoint of the intermediate point between the planar mounting position of the memory buffer and the planar mounting position of the memory chips MC3 and MC11. Accordingly, the wiring length of the wiring part can be made sufficiently short.

The present invention is one kind of reagent for quick immune histohcemical detection of lymphatic metastasis of mammary cancer and corresponding detecting method. Several kinds of directly marked antibody capable of distinguishing metastatic cancer cell and inherent lymph node cell are mixed into reagent and one-step reacted to stain the metastatic cancer cell in lymph node specifically. The present invention is used in the fast pathological diagnosis of early lymphatic metastasis of mammary cancer, and has raised sensitivity, high accuracy and high specificity.

The present invention relates to a system for processing of an audio signal relating to a diver in a deep diving environment. The system comprises an input device structured to receive the signal, a pitch changing module configured to change the pitch of the received signal, a plurality of processing modules collectively configured to process the pitch changed signal and produce a processed signal. The present invention is further directed to a method for processing of an audio signal relating to a diver in a deep diving environment.

One embodiment of the present disclosure is directed to a method used in the making of a dental restoration, which comprises the steps of determining a tooth flat at a patient's tooth, and evaluating the tooth flat to provide a geometric characteristic data of the first tooth flat. The characteristic data are used to provide a computer model of a jaw motion under occlusal contact between teeth in the patient's upper and lower jaws. In one embodiment, the method helps facilitating the preparation of dental restorations.

The invention discloses a pipeline detection method and device through exciting axial guided waves by utilizing annular laser. The pipeline detection method comprises the steps of: converting a round laser beam into an annular laser beam; adjusting the size of the radius of the annular laser beam to enable the radius to be in consistence with the radius of the annular end face of a pipeline; when the annular laser is projected on the annular end face of the pipeline, exciting guided waves in an axial symmetrical mode by generated impact load; and receiving echo signals which are generated when the guided waves meet with a defect by a signal reception device so that detection for a pipeline defect is realized. The pipeline detection method and device through exciting axial guided waves by utilizing the annular laser is good for exciting guided waves in the axial symmetrical mode of the pipeline; as a conical lens group is utilized to collect round flare energy on the annular end face of the pipeline, the effect of the applied impact load is enhanced and SNR (Signal to Noise Ratio) is increased; and as the size of the radius of the annular laser beam is controlled through adjustment of a relative position between the lens group and the end face of the pipeline to adapt to the detection of pipelines with different radiuses, the pipeline detection method and device through exciting axial guided waves by utilizing the annular laser, disclosed by the invention, has the advantages of high efficiency, wide range, relatively low cost and the like.

A system and method for filtering and detecting faint signals in noise by placing a filter prior to an amplifier. In particular, a system for filtering differential signals includes: a signal receiver for receiving a differential signal; a prefiltering network connected to the receiver for filtering the differential signal prior to amplification, the prefiltering network including a high-pass filter and/or a low-pass filter; and an amplifier connected to the filtering network. In contrast with the conventional approach of connecting the filter to the amplifier's inputs, the filtering network in a preferred embodiment of the invention is connected to the amplifier through the amplifier's gain resistor such that the input impedance and common mode rejection ratio of the amplifier is not adversely affected by the filtering. Band-pass filtering prior to amplification reduces the noise in the signal and allows higher gain to provide a clearer signal following amplification.

A pod, particularly for indoor use, consisting of a vertically movable bollard adapted to present utilities and optionally provide security function, presented in a watertight or waterproof housing is disclosed. The pod can provide a watertight or waterproof seal in both its distended and retracted state and also provides a substantially flush, cleanable top surface with respect to the surrounding floor, table, or surface when retracted. The pod may optionally be adapted with a universal adaptor for presenting gas and other like utilities. All utilities are sourced from beneath the ground or from a source outside the pod. The pod is powered and may be controlled directly on the bollard or distant to the bollard by a wired or wireless connection thereto. Finally, the pod may be placed in a floor, table, or other structure as a single stand-alone unit and may work in conjunction with other pods.

A cobalt-chromium (Co-Cr) magnetic film electrodeposited on the surface of an aluminum alloy. A process for making an aluminum alloy electrodeposited a cobalt-chromium (Co-Cr) magnetic film comprises the steps of chemically polishing an aluminum alloy substrate, pretreating either with phosphate or with zincate and electrodepositing in a plating bath containing cobalt and chromium ions to prepare the cobalt-chromium thin film on the aluminum alloy. Chromium content in the film can be designed by adjusting the parameters of pretreatment and electroplating. The produced cobalt-chromium film can flexibly adjust the magnetic characteristics (e.g. coercive force (Hc) and ramanence magnetization (Mr)) and is suitable for use in a magnetic recorder. The chemical composition, adhesion, microhardness, magnetic properties of the deposits indicate that the Co-Cr films produced are satisfactory for magnetic recording service.

The invention relates to a device for protecting selective cutting machines against overload, in which the selective cutting machine has cutting tools, in particular cutting rollers, rotatably supported on a pivotable cantilevered arm, and both the cutting tools and the cutting arm are connected to separate drive mechanisms. At least one strain or deformation measuring sensor is disposed on the pivotable cantilevered arm, and its signals are delivered to an evaluation circuit; the evaluation circuit is connected via control lines at least to the drive mechanisms of the cutting arm and the cutting tool.

The invention discloses a portable receiver of external TV signals based on DVB-H, comprising an antenna, a video signal tuned unit, a video signal demodulation unit and an output unit which are connected in order; the video signal tuned unit tunes DVB-H digital TV signals received by the antenna and transmits the signals to the video signal demodulation unit; the video signal demodulation unit demodulates received tuned signals processed by the video signal tuned unit and compacts into video streams; the output unit is used for outputting the video streams to an external portable terminal. The invention does not need any structure changes of prior portable terminals such as mobile phones, only needs a play software to be installed, then is connected with the output unit of the external TV signal portable terminal based on DVB-H, mobile phone digital TV programs provided by traders can be received.

PCT No. PCT/NZ95/00123 Sec. 371 Date Jun. 13, 1997 Sec. 102(e) Date Jun. 13, 1997 PCT Filed Nov. 24, 1995 PCT Pub. No. WO96/17440 PCT Pub. Date Jun. 6, 1996A method and device for detecting on an electric fence system a communication signal from a total signal including noise and also electrical interference from electrical energizer pulses supplied to the fence. A signal detector detects, directly or indirectly, the level of noise or electrical interference in the total signal on the system, at least one of a filter associated with the signal detector and the amplitude of the total signal received is adjusted until the threshold of the filter blocks sufficient electric noise so that a sufficient part of the total signal received after filtering is the communication signal, and the adjustment of the filter threshold is not dependent on the communication signal alone. The validity of the communication signal is checked and the electrical energizer pulses are transmitted on the fence system in coordination with reception of the communication signals to reduce the interference.

An antenna seat comprises a female joint having a connecting cylinder; an inner side of the connecting cylinder having a buckle ring; and a male joint having a tapered inner cylinder corresponding to the buckle ring; a left end of the tapered inner cylinder having a flange; an inner space of the tapered inner cylinder being formed with a terminal for receiving one end of an antenna, wherein the tapered inner cylinder has a tapered shape so that as it is inserted into the connecting cylinder of the female joint, the male joint will rotatably and tightly engage with the female joint. Thereby in another case, the female joint has a tapered inner cylinder near an opening of the female joint.

The invention provides a set of paddy rice SSR molecular markers suitable for capillary electrophoresis detection technology, and applications thereof. The set of paddy rice SSR molecular markers suitable for capillary electrophoresis detection technology comprises 13 SSR molecular markers. The invention also provides a primer combination which is used for detecting the SSR molecular markers and is suitable for capillary electrophoresis platforms. The 13 SSR molecular markers can be used for 1, construction of a paddy rice variety SSR labeled fingerprint database; 2, paddy rice maternal line source tracing analysis; 3, paddy rice variety identification and genetic diversity analysis, and 4, distinguishing of Beidao 7 and Longjing 29. Applications of the paddy rice SSR molecular markers arecapable of widening paddy rice available marker-site range in genome level, and providing novel tools in paddy rice variety and germplasm resources identification, genetic relationship evaluation, and cytoplasm hereditary character study, and the application prospect is promising.

The invention relates to a sensor performance on-line test device and method based on a multi-threshold wavelet under strong interference. First, a test point environmental parameter signal detected by a sensor is subjected to filtering and collection; then the collected signal is subjected to noise reduction processing through fuzzy multi-threshold wavelet transformation; wavelet decomposition is carried out, wavelet coefficients are obtained, the membership degree of each wavelet coefficient is obtained, the wavelet coefficients with the membership degrees exceeding the preset threshold are rejected, wavelet reconstruction is carried out by utilization of the wavelet coefficients with the membership degrees within the preset threshold, detection data after noise reduction is obtained, sensor characteristic indexes are calculated according to the detection data after noise reduction and environmental parameter values of the test point, and sensor performance on-line automatic test is finished. Noise reduction processing is carried out with combination of filtering and fuzzy multi-threshold wavelet transformation, the signal outline after noise reduction is obvious and clear, no detail signals are lost, fidelity with an original signal is kept, and the signal to noise ratio of the signal is raised obviously.

The invention provides a group of SSR molecular markers for identifying corn varieties and application of the molecular marker. The number of the SSR molecular markers is two. An SSR molecular markerdetection method suitable for a polyacrylamide gel electrophoresis platform is provided. The two SSR molecular markers can be used for rapidly distinguishing Heyu187 and Denghai18 varieties of corn, the SSR markers are combined with efficient and high-sensitivity technologies, the cost is reduced, the test efficiency is fully improved in the aspect of time, and the method has the advantages of being quick, convenient to operate, short in time, accurate and reliable in result and the like. The primers can be used for corn fingerprint spectrum construction, variety identification, genetic diversity analysis and the like, and have very wide application prospects.

The present invention provides methods and assays for screening cells, such as stem cells, for chromosomal aberrations. In particular, the present invention provides a rapid, sensitive assay platform for detecting high and low levels of chromosomal aberrations present in a cell population. This includes, but is not limited to, detection of extra chromosomes (trisomies) as well as insertions of small segments that are undetectable using standard cytogenetic studies, wherein the abnormal cells comprise a low percentage of the total cell population.

The invention provides a signal conditioning circuit used for high-voltage SF6 switching equipment electric life monitoring. The circuit includes a signal extraction module, a signal filtering module and a signal amplification module; the signal extraction module is used for obtaining electrical life monitoring signals and transmitting the signals to the signal filtering module, wherein the signals are processed by the signal filtering module, and then, are transmitted to the signal amplification module; the signal filtering module is used for filtering out power frequency noise interferences and other frequency noise interferences in the signals and includes a multiplier and a band-pass filter; the signal amplification module adopts a low-noise voltage feedback amplifier and is used for amplifying the filtered signals so as to realize signal conditioning; and the electrical life monitoring signals are different voltage signals which reflect distributed impedance in opening and closing situations of a main contact in high frequency. When the circuit is designed through the above manner, extracted signals are clearer, and the accuracy of subsequent data processing by utilizing the electric life signals can be guaranteed.

The invention discloses a method for automatically generating a satellite measurement and control information flow diagram. The satellite measurement and control information flow diagram can be automatically generated, and the problems that time for manually drawing a traditional satellite measurement and control information flow diagram is long, and errors occur easily are solved. In-time or synchronous updating of the information flow diagram and an IDS data source can be achieved, and the information flow diagram is convenient to read and maintain. Relative data scattered in subsystems X in satellite interface data sheets (IDS) are extracted and integrated into information flows; the information flows are ranked according to code names of sending devices, the code name of a receiving device and the code number of a receiving device electric connector; finally, the information flows are ranked in sequence through device segments, electric connector segments and signal segments which are built in visio, and information flow diagram drawing is carried out on each sending device; drawing processing is carried out on each sending device according to the drawing sequence from the receiving device to the sending devices; the receiving device is drawn according to the three-layer circulating drawing sequence.