41results about How to "Reduce suddenness" patented technology

According to an embodiment, an interrogator includes a beam generator operable to scan a variable-power beam across a field of view, a detector aligned to receive an electromagnetic signal from the field of view and generate a corresponding detection signal, and a controller operatively coupled to the detector and the beam generator and operable to vary the power of the beam as it scans across the field of view responsive to the detection signal. According to an embodiment, an illumination system includes an illumination source operable to provide spatially-varying illumination, a detector configured to receive scattered energy from the spatially-varying illumination, and an electronic controller operable to vary the spatial variation of the illumination responsive to the scattered energy received by the detector. According to an embodiment, a method includes illuminating a field of view with a variable power illumination pattern, receiving scattered light from the field of view, and modifying the pattern of the variable power illumination responsive to the scattered light

According to aspects of embodiments of the invention, a method of encoding a sequence of frames of image data, each frame including a number of lines of pixels equal to a frame height, and each line having a number of pixels equal to a line length, comprises: encoding as an encoded symbol stream a sequence of pixels of a frame without including an end-of-line code after each line; identifying as a run having a run length, a sequence of pixels having values less than a threshold; and encoding the run using digit encoding. According to other aspects, the digit encoding may further comprise: identifying a set of most frequently used symbols; assigning a symbolic digit to each of the set of most frequently used symbols; assigning a start symbol; and encoding using digit encoding may include inserting in the encoded symbol stream the start symbol; and inserting in the encoded symbol stream after the start symbol a sequence of symbolic digits identifying the run length of the run. The method may yet further comprise: assigning an end symbol; and inserting the end symbol in the encoded symbol stream after the sequence of symbolic digits. According to yet another variation, the method may further comprise: defining the assigned start symbol to include a field indicating how many of the symbolic digits are required to identify the run length of the run.

According to aspects of embodiments of the invention, a method of encoding a sequence of frames of image data, each frame including a number of lines of pixels equal to a frame height, and each line having a number of pixels equal to a line length, comprises: encoding as an encoded symbol stream a sequence of pixels of a frame without including an end-of-line code after each line; identifying as a run having a run length, a sequence of pixels having values less than a threshold; and encoding the run using digit encoding. According to other aspects, the digit encoding may further comprise: identifying a set of most frequently used symbols; assigning a symbolic digit to each of the set of most frequently used symbols; assigning a start symbol; and encoding using digit encoding may include: inserting in the encoded symbol stream the start symbol; and inserting in the encoded symbol stream after the start symbol a sequence of symbolic digits identifying the run length of the run. The method may yet further comprise: assigning an end symbol; and inserting the end symbol in the encoded symbol stream after the sequence of symbolic digits. According to yet another variation, the method may further comprise: defining the assigned start symbol to include a field indicating how many of the symbolic digits are required to identify the run length of the run.

The invention provides a power supply protection device, which is connected in series with a power supply source; the switch action ends of a first electric control switch and a second electric control switch are sequentially connected in series with a sampling resistor and are connected to the power supply source / a power supply end; the serially connected switch action ends of the first electriccontrol switch and the second electric control switch are integrally connected with the input end of an electric control switch monitoring circuit; the two ends of the sampling resistor is connected with the differential input end of a first differential amplification circuit; the output end of the first differential amplification circuit is respectively connected with the first input end of a first comparison circuit and the first input end of a second comparison circuit; the output ends of the first comparison circuit, the second comparison circuit and the electric control switch monitoringcircuit are connected with the triggering end or input end of a logic conversion circuit; the output end of the logic conversion circuit is connected with the triggering end of a triggering circuit and / or a warning circuit. Compared with the prior art, the power supply protection device has the advantages that the safety is higher; after the work switch fails, the secondary fault due to short circuit can be timely avoided.

A method for preventing and controlling water inrush and sand inrush in coal mining, comprising the following steps: Step 1: obtaining various geological parameters before coal mining; Classification of water and sand inrush conditions; divided into 3 categories; Step 4: Pretreatment of the sand layer before coal mining; Step 5: Monitoring of sand layer groundwater and potential water and sand inrush channels during coal mining; Step 6 : the prevention and control of lagging occurrence of water and sand inrush after coal mining; Step 7: the mining of coal resources has been completed, and no water and sand inrush accidents have occurred; The advantages of pertinence and good security.

A woodwind mouthpiece has a tone chamber in communication with a central bore running through the mouthpiece and a window exposing the tone chamber. A table is located at a first end of the window, and a tip rail is located at a second end of the window opposite the first end. A pair of side rails run along opposite sides of the window from the table to the tip rail. Each side rail includes a side rail top surface. A pair of flanges are provided in the mouthpiece such that each flange extending out from one of the side rail top surfaces in a direction opposite the window. This arrangement reduces the intensity of the shock fronts at the aperture into the tone chamber.