42results about How to "Change resolution" patented technology

The invention provides a network video transmission method and system and a sending / receiving end processing method and device. The network video transmission method comprises the steps that a receiving end reports a playing window of each network video; a sending end sets the resolution ratio of output video data according to the resolution ratio of the playing windows of the receiving end, the video data are transmitted to the corresponding receiving end; after the receiving end receives the video data, the video data are played in the corresponding play windows. The size of playing windows can be defined by the receiving end of network video communication, and video quality cannot be affected.

An object of the invention is to provide a traffic information provision system which can arbitrarily set a position resolution and a traffic representation resolution and flexibly support a traffic information prediction service.The traffic information provision system of the invention quantizes the state quantity of traffic information changing along a road, converts said quantized state quantity to a value having statistical deviation, performs encoding of said value, and provides the encoded value to traffic information utilization apparatus such as a car navigation system. The traffic information utilization apparatus decodes said encoded state quantity to reproduce the traffic information on said road.

The invention is applicable to the technical field of picture processing and discloses a picture superposition method and a system. The method includes that by means of a map based application program interface, a first picture is loaded to be used as a base picture, each point on the base picture corresponds to a geographical coordinate, and a second picture is added to the position of a geographical coordinate corresponding to a base picture required to be placed in a labeling form; the picture superposition system comprises a first picture loading module and a second picture adding module, the first picture loading module is used for loading the first picture to be used as the base picture through the map based application program interface, and each point on the base picture corresponds to a geographical coordinate; and the second picture adding module is used for adding the second picture to the position of the geographical coordinate corresponding to the base picture required to be placed in a labeling form. By means of the picture superposition method and the system, the geographical coordinate is bound during picture superposition so that original positions can not be deviated under the condition that monitor resolution is changed.

The invention relates to a measurement device of stimulated Brillouin frequency shift during the amplification of a single single-frequency pulse, comprising a single-frequency pulse signal source with the repetition frequency of 1 Hz, two 2*1 wavelength division multiplexers WDM, an F-P interferometer and a CCD display, wherein the single-frequency pulse signal source is connected with one end of one 2*1 wavelength division multiplexer WDM, and the output end of the 2*1 wavelength division multiplexer WDM 1 is connected with an optical fiber signal amplifier; the optical fiber signal amplifier is connected with one end of the other 2*1 wavelength division multiplexer WDM; the other end of one 2*1 wavelength division multiplexer WDM is welded with the other end of the other 2*1 wavelength division multiplexer WDM, and the output end of the other 2*1 wavelength division multiplexer WDM is connected with the F-P interferometer; and the output end of the F-P interferometer is connected with the CCD display. The invention can flexibly change the free spectral range and achieve high measurement precision, simple experimental equipment and low price.

A spherical aberration compensation actuator (200) and an optical pickup system are provided. The spherical aberration compensation actuator (200) mounts an element for compensating a spherical aberration and operates to a single-axis direction on an optical path using electromagnetic force. The optical pickup system includes a laser diode (321), an object lens (335), a spherical aberration compensation actuator (200), an optical path changer, and an optical detector (327). The spherical aberration compensation actuator (200) is installed on an optical path between the laser diode (321) and the object lens (335) and includes a lens holder having a spherical aberration compensation element for compensating a spherical aberration generated due to light passing through the object lens (335) and operating in an optical-axis direction using electromagnetic force. A spherical aberration compensation servo (329) controls the spherical aberration compensation actuator (200) on the basis of a jitter signal from a jitter signal detector (328) from the optical detector (327).

The invention relates to the technical field of gas flow measuring and particularly discloses a trace gas flow meter with an adjustable resolution ratio. The trace gas flow meter comprises a closed container, a gas inlet pipe, a gas outlet pipe, a liquid medium, a center pivot, a balance tank, a gravity regulator, a first cavity gas collection unit, a second cavity gas collection unit and a counter. The balance tank is arranged in the liquid medium in the closed container through the center pivot, the gravity regulator is arranged in the balance tank and can freely slide along the balance tank, the first cavity gas collection unit and the second cavity gas collection unit are connected to be inverted on the lower side of the balance tank and located on the two sides of the center pivot respectively, a gas inlet of the gas inlet pipe is located below the joint of the first cavity gas collection unit and the second cavity gas collection unit, and the counter is connected with the center pivot. Lifting force can be adjusted so as to change the resolution ratio of a measuring unit to adapt to measurement in different gas flow ranges. Meanwhile, gas leakage in the measuring process can be avoided to guarantee measurement accuracy.

Provided is an image processing device for changing resolution of image data in accordance with a distance from a reference point arbitrarily set in a screen of the image data. The image processing device includes: selection means for selecting from the image data, operation object pixels arranged in such a manner that the pixel interval is increased as the distance from the reference point is increased; smoothing process means for smoothing the operation object pixels selected by the selection means, by using the pixel values of the operation object pixels and the pixel values of the pixels positioned around the operation object pixels; and interpolation process means for interpolating the pixel values of the pixels not selected as the operation object pixels by the selection means from the pixel values of the operation object pixels positioned around them and smoothed by the smoothing process means.

The invention relates to a multifunctional intelligent air quality detection system with adjustable resolution ratio and a detection method. The system is equipped with one or more air quality detection device distributed in a monitoring area in the form of one main node or one main node and one or more secondary node; each air quality detection device is equipped with a photosensitive sensing unit, a light source unit and an outer shell; the light source unit and the photosensitive sensing unit are respectively connected with the two sides of the end part of the outer shell in the manner of adjustable light beam length through the threads; the outer shell has a cylindrical structure; an air inlet is formed on the outer shell. A large-diameter lens is adopted by the invention, so that air intake volume in the light beam scope can be increased; the detection sensitivity of the device can be increased; the length of the light beam can be changed by changing the length of a ruler, so that the resolution ratio of the device can be changed; data can be conveniently uploaded; the traditional single point test is replaced; the detection result is more true and valid; the scope of the monitoring area is widened.

A color image sensor includes a plurality of image elements, a plurality of read gate sections, a plurality of vertical scanning charge transfer sections, and a plurality of transfer switch sections. The plurality of image elements are arranged in a matrix of rows and columns and each of the plurality of image elements generates an electric charge in response to incidence of light. The plurality of read gate sections are provided for the plurality of image elements, and each of the plurality of image elements controls transfer of the electric charge generated in a corresponding one of the plurality of image elements. Each of the plurality of vertical scanning charge transfer sections is provided for every column of the matrix to hold and transfer the electric charges transferred from a corresponding column of the plurality of read gate sections. Each of the plurality of transfer switch sections is provided for a termination section of a corresponding one of the plurality of vertical scanning charge transfer sections to control transfer of the electric charges from the corresponding vertical scanning charge transfer section. The horizontal scanning charge transfer section is provided for the plurality of transfer switch sections to hold and transfer the electric charges transferred from the plurality of vertical scanning charge transfer sections via the plurality of transfer switch sections.

The invention discloses a control framework based on unidirectional and bidirectional LED arrangement display. The control framework includes a computer, an HDMI / DP / USB module, an LED display controller, a signal distributor and a display unit. The output end of the LED display screen controller is connected to the input end of the signal distributor, and the LED display screen controller receives video image-text information, control information programs and overhaul information transmitted from the HDMI / DP / USB module, and processes the information. The output end of the signal distributor is connected to the display unit, and the signal distributor is used for distributing the video image-text information, the control information programs and overhaul information processed by the LED display screen controller to the display unit according to the need. The control framework based on the unidirectional and bidirectional LED arrangement display changes a display of a computer into an LED display screen for display, outputs a video to the LED display screen after scaling processing, and no change of the resolution ratio of the LED display screen is needed.

The invention provides an inkjet recording apparatus of a line head type where a resolution can be changed simply, and locating of nozzles can be performed simply and accurately is provided. The present invention is an inkjet recording apparatus 100 performing recording to a recording medium 1 using line heads H, wherein the inkjet recording apparatus 100 is provided with a rectangular first base plate 11, a rectangular second base plate 21, and a plurality of the line heads H arranged on the first base plate and the second base plate, wherein a side end of one side of the first base plate 11 has a step-like upper projection portion 12, a side end of the other side of the second base plate 21 has a step-like lower projection portion 22, the upper projection portion 12 and the lower projection portion 22 overlap each other so as to come in surface contact with each other in a vertical direction, and the first base plate 11 and the second base plate 21 are provided side by side in a state where a distal end of the lower projection portion 22 has been caused to abut on the first base plate 11, wherein a resolution is changed by finely moving the second base plate 21 to the first base plate 11 in a longitudinal direction.

The invention discloses a ferromagnetic pipeline tiny defect magnetic detection sensor. The detection sensor is integrally cuboid, and the lower surface of the detection sensor is in an arc shape consistent with the radian of the wall of a pipeline. The magnetic detection sensor comprises an arched excitation part, a circuit part and a detection part, the circuit part and the detection part are arranged in the arched cavity of the arched excitation part, and the circuit part is arranged between the arched excitation part and the detection part. According to the invention, an excitation devicewith a large volume in a traditional magnetic flux leakage detection device is simplified into the excitation part of the sensor, the integration of the excitation part and the detection part is achieved, and the implementation mode of the detection part is designed, so that the acquired magnetic field signal information amount is larger and more accurate.

The invention discloses a method to control and compensate error of programmable standard resistance generator. It comprises 16 exactitude resistances at most and connected with each other to form resistance network in series according to binary principle; eliminating the error brought from the winding process of the exactitude resistances; and deciding the resistance value. And the contacting resistance error of programmable standard resistance generator relay contacts must make hardware to compensate. The invention would make the standard resistance output the absolute error less than 0.2ohm in the range between 0 and 6553.6ohm.

The invention relates to the technical field of fiber sensing distance measurement and particularly relates to a fiber distance measurement device with high sensitivity. The device is composed of a first laser device, a second laser device, a first condensing collimating lens, an imaging lens, a second condensing collimating lens, a first sending fiber, a second sending fiber, a first receiving fiber, a second receiving fiber, a filtering spectroscope, a second photoelectric receiver and a first photoelectric receiver. The first laser device and the second laser device subjected to frequency modulation emit lasers with similar wavelengths respectively, the lasers enter the first sending fiber and the second sending fiber through the first collimating focusing lens and the second collimating focusing lens respectively, the light emitted by the first sending fiber is totally transmitted through the filtering spectroscope, the light emitted by the second sending fiber is totally reflectedby the filtering spectroscope, the transmission light and the reflection light are emitted to a measured object through the imaging lens, are reflected by the measured object, return along the same path and are respectively received by the first photoelectric receiver and the second photoelectric receiver, and end faces of the first transmitting fiber and the second transmitting fiber are imagedby the imaging lens in front of the measured object.

The invention relates to an optical sensing based impulse testing method and a device. The optical sensing based impulse testing method is characterized by comprising the following steps that: a guide rail is arranged along the tested impulse direction, a mass block capable of moving along the impulse direction is arranged on the guide rail, a linear raster is fixed at the side of the mass block, and a measurement device is arranged on the guide rail to measure a reflection light intensity-time curve of the linear raster, thereby impulse parameters are calculated. In the device, the pulse impulse parameters are measured by optical sensing, so that the anti-electromagnetic interference capability of a testing system is improved; the low-loss characteristics of optical fiber are utilized to realize the long-distance transmission of measurement signals so as to ensure the safety of a light source, an optoelectronic converter and other devices; the device can be applied to explosion and radiation field, and other special occasions, the testing range, resolution and the like can be changed by adjusting the weight of the mass block, the length of the linear raster, a line space and other parameters according to the tested object, and the method is adapted to the measurement requirements of different occasions and different parameters; and a testing probe has a small volume and a compact structure, and is convenient to install and disassemble.