170 results about "Color television" patented technology

A set top box (“STB”) apparatus configurable for handling broadcast, cable television and Internet protocol television (“IPTV”) formats by multiple operators via a single flexible operating system is provided. The set top box is enabled to receive and run different operating systems from multiple providers or operators. In another aspect, a dual mode display feature enables viewing of digital content via a first display device while enabling browsing and e-commerce functionality via an associated remote device.

This method and system allow a subscriber to a cable television service to receiving a listing or menu of programming available for that subscriber's set-top terminal to upgrade or enhance the features available over the cable system. A Directory of Services (DoS) message is transmitted over the cable system to the subscriber's set-top terminal. The terminal can then display for the subscriber the menu of programming available. This display may include a price for downloading each programming object. The subscriber can then, using a remote control unit or a user input device on the terminal, direct the set-top terminal to acquire a listed programming object. The DoS message will provide information enabling the set-top terminal to download the indicated programming object from the cable system in response to the subscriber's input. The subscriber can then have immediate access to upgraded or enhanced programming, the purchase of which is billed to the subscriber's account.

The invention relates to a color gamut expansion mapping system of laser television and a method thereof. The method thereof, which is simple and convenient, can sufficiently represent wide color gamut of laser display equipment and comprises the steps: 1) evenly sampling on RGB color cube surface and storing according to a set order; 2) computing the CIELUV values of sampling points under PLA-system color television standard color gamut and laser display color gamut, so as to form two color gamut boundaries; 3) evenly dividing RGB space into 16x16x16 small cubes and computing the CIELUV values of the peaks of the small cubes; in CIELUV space, solving the intersection points between a straight line, determined by inputting color points and a central point of lightness axis, and two color gamut boundaries; 4) determining the proportion for extension according to the ratio of two intersection points; 5) converting LUV values after extension into RGB drive values for the laser display equipment; and 6) storing the mapping values of the peaks of the small cubes, namely the obtained RGB drive values for the laser display equipment, in a three-dimensional lookup table to construct the color gamut mapping system, and implementing color gamut expansion mapping on any input RGB value in a manner of table lookup and interpolation.

A Y/C separator improving characteristics of dot crawl elimination and cross-color interference elimination even at a sampling frequency unequal to an integer multiple of a color subcarrier frequency of an NTSC television signal. A received composite color television signal is quantized by a clock signal with a frequency synchronized to the horizontal sync signal of an input signal. Chrominance component values are extracted in various directions of a target sample by using neighboring samples of the target sample. The chrominance component is obtained by selecting and outputting the extracted chrominance component values in accordance with correlation values of the corresponding samples from which the color component is removed. The calculation of the chrominance component extraction value is carried out by detecting the phase rotation angle of the color subcarrier signal per clock near the target sample, and in response to the detected value.

The invention discloses a white balance automatic adjustment system for a color TV set and a method thereof, belonging to the field of system debug of the color TV set, and solving the problem that the white balance of the color TV set is adjusted with low efficiency and high cost. The system comprises a white balance measuring apparatus and the color TV set to be measured, wherein the white balance measuring apparatus is connected with a radio-frequency head of the color TV set to be measured through a cable, and a high-brightness probe and a low-brightness probe of the white balance measuring apparatus are respectively positioned in a high-brightness display area and a low-brightness display area outside a kinescope of the color TV to be measured; and the white balance measuring apparatus is connected with a microprocessor of the color TV to be measured through a communication interface. The method comprises the following steps: a measuring standard for the white balance is set; the white balance measuring apparatus sends a television signal used for the measurement of the white balance to the radio-frequency head of the color TV set to be measured; the high-brightness probe and the low-brightness probe capture white balance measured data; the microprocessor of the color TV set to be measured receives the measured data through the communication interference; and the microprocessor of the color TV set to be measured performs the white balance adjustment according to the measured data and the set measuring standard. The invention is suitable for the white balance adjustment for the color TV set.

The invention discloses a coverage type karst multi-line simultaneous detection and survey method under a strong interference condition. The coverage type karst multi-line simultaneous detection and survey method under the strong interference condition comprises the following steps of: researching the background of areal geology and regional hydrogeology, collecting and analyzing background information and early-stage survey data of areal geology and regional hydrogeology, and determining spacing between survey points and a geophysical prospecting CT profile line net arrangement form accordingto the project type, the design scheme and the early-stage survey data; adopting an intuitional method to observe a drilled rock core, adopting a drilling color television to perform in-situ observation of an karst cave or a soil cave, acquiring a hole wall image in real time by an imaging system, and performing primary image on an all-hole wall; knowing karst cave distribution, a shape and a large-scale basic development rule according to detection and survey; comprehensively explaining and delineating an abnormal point according to geophysical prospecting results, and performing planar projection synthesis on abnormal regions delineated on different CT profiles; and performing comprehensive drilling, test, geophysical prospecting and hydrogeological conditions to analyze the karst development rule. The coverage type karst multi-line simultaneous detection and survey method has the advantage of being capable of accurately reflecting a karst development condition.

The invention relates to digital television and wide color gamut theory and technology, in particular to a coding scheme based on the acquisition of three primary colors with the widest sensible color gamut and corresponding to ITU-R BT.1361. The coding scheme based on the acquisition of the three primary colors with the widest sensible color gamut uses an ergodic point taking calculation method which comprises the following steps: taking values at random in a range of -0.25 to 1.33 respectively by gamma correction input signals LR, LG and LB; and comparing a color formed by each group of taken values with a tongue-shaped spectrum curve to obtain all sensible colors; and deducing to obtain the three primary colors with the widest sensible color gamut corresponding to the ITU-R BT.1361 according to the characteristics of a color bar signal, and deducing the coding realization scheme based on the three primary colors with the widest sensible color gamut. The invention is mainly applied to compatible data transmission in a color television system.

The invention discloses a method for judging and processing a fissure development zone of a goaf. The method comprises the steps that drilling is carried out to acquire a core in an unsteady region ofa surrounding rock of the coal mine goaf where significant deformation, movement or destruction occurs; the coal rock sample of the drilled part is ground into powder; the distribution characteristics of the pore size of the coal rock sample are acquired through experiments; small coal rock samples of 1 to 2cm<2> are taken with a small hammer from the drilled coal rock sample; a relatively flat nature section is selected as an observation surface; under a scanning electron microscope, the pores of the coal rock samples, the uniformity of fissures and the coordination number of pores are observed; the pore type and pore fissure development and connectivity are comprehensively analyzed to determine a fissure development zone; drilling is continued in the direction of drilling in the first step; the morphological characteristics of the three-dimensional fissure field distribution of the surrounding rock in the goaf are observed through a borehole color television to determine the thickness of an effective aquifer, the cracking position of a fissure and the range of the fissure development zone; and slurry is injected into the range of the fissure development zone to achieve water shutoff and reinforcement.

The invention discloses a water-based tape casting method for sheet-shaped positive temperature coefficien heat-sensitive ceramics. The method comprises the following steps: 1) adding deionized water and dispersing agent in nano-sized BaTiO3-based positive temperature coefficient heat-sensitive ceramic powder, and mixing by a ball mill for 3-5 hours to obtain a BaTiO3 slurry; 2) adding binder and plasticizer in the BaTiO3 slurry, mixing by the ball mill for 2-3 hours, and sieving to obtain a water-based casting slurry; 3) performing casting treatment of the water-based casting slurry, drying the wet film obtained after casting treatment to obtain a ceramic blank; and 4) cutting the ceramic blank to square shape and sintering to obtain sheet-shaped positive temperature coefficien heat-sensitive ceramic. The produced ceramic blank has smooth surface, high strength, good flexibility and adaptivity for winding and curling. The produced sheet-shaped positive temperature coefficien heat-sensitive ceramic is widely used for the overcurrent protection and overheat protection in the fields of portable mobile telephones, high-resolution color televisions, auto electronics and hybrid integrated circuits.

Embodiments of the invention provide a method for automatic correction of projection imaging. The method comprises the following steps of obtaining designated area images through preset image acquisition equipment, wherein the designated area images include projection imaging of an original image and a screen image; determining coordinates of each vertex angle of the projection imaging of the original image and coordinates of each vertex angle of the screen image; computing a horizontal distance and a vertical distance between each vertex angle of the projection imaging of the original image and the vertex angle corresponding to the screen image; judging whether a target vertex angle whose horizontal distance and/or vertical distance from the corresponding vertex angle in the screen imageare/is greater than a preset distance threshold exists in each vertex angle of the projection imaging of the original image; and if yes, correcting horizontal coordinates and/or vertical coordinates of the vertex angle corresponding to the target vertex angle of the projection image of the original image in the preset original image according to a preset step. According to the embodiments of the invention, no user operation is needed, so that the debugging of a laser television is also carried out without the professional debugging personnel.

The invention discloses a method for recovering yttrium and europium in waste fluorescent powder to prepare yttrium europium oxide, and belongs to the technical field of waste recovery. The method includes following steps: a. mixing the waste fluorescent powder, ammonium chloride and potassium pyrosulfate powder, and moving the mixture into a roasting furnace to be roasted at the temperature of 340-400 DEG C; b. water immersing solid after roasting, and then obtaining solution including the yttrium and the europium; c. adding sodium sulphide into the solution including the yttrium and the europium to refine; and d. the potential of hydrogen (PH) value of the solution after refinement is adjusted to range from 1.5 to 2, and then adding oxalic acid to enable the yttrium and the europium to precipitate to obtain yttrium oxalate hydrate and oxalic acid europium. According to requirements of fluorescent powder of a color television or a three band fluorescent lamp for raw materials, at least one of the yttrium oxalate hydrate or the oxalic acid europium or yttrium oxide or europium oxide is added into the yttrium oxalate hydrate and the oxalic acid europium, and ytterbium europium oxide is obtained after the reaction. The method can reduce production cost, and improves the recovery rate of the yttrium and the europium; and the obtained ytterbium europium oxide can be directly used for preparing the fluorescent powder of the color television or the three band fluorescent lamp.

The invention discloses a macro block mode fast selecting method based on just noticeable distortion. A just noticeable distortion image of a time-space domain corresponding to each color image in color television video sequences to be processed is obtained, a just noticeable distortion value of each image block in the just noticeable distortion image of the time-space domain is calculated, and then an optimal macro block encoding mode of each macro block in a B-frame color time-space domain is confirmed according to the just noticeable distortion value of each image block in the just noticeable distortion image of the time-space domain. The macro block mode fast selecting method can effectively save encoding time of color videos on the premise that color video visual perception quality is guaranteed and greatly reduces the encoding complexity level of the color videos, and saved encoding time can reach to 72.7% averagely.

The invention discloses a light source module of a laser television and a laser projection television, and relates to the technical field of the laser television. By the light source module, the problem of excessively high sealing cost caused by the adoption of airtight-level sealing of the whole light source module is solved. The light source module of the laser television comprises a shell, wherein a cavity is formed in the shell, a partition structure is arranged in the cavity and is used for dividing the cavity to a first chamber and a second chamber which do not communicate with each other, the light source module also comprises a laser module and an optical lens module, the optical lens module comprises a first transmitting optical lens and a second optical lens module, the second optical lens module is arranged in an output light path of the first transmitting optical lens, the partition structure comprises the first transmitting optical lens and a support part, the support partis used for supporting the first transmitting optical lens, the laser module is arranged in the first chamber, and the second optical lens module is arranged in the second chamber. The light source module is used for the laser television.

Embodiments of the invention provide a cloud television system upgrading method and device. The method comprises the following steps: decompressing a system upgrading file package so as to obtain a plurality of upgrading files; carrying out statistics on extra data space required to be occupied after the upgrading according to the plurality of upgrading files, wherein the extra data space is a data space except the data space occupied by the current system; and judging whether the residual space of the current data space is greater than or equal to the extra data space required to be occupied after the upgrading, and if the judging result is positive, carrying out system upgrading by adopting the decompressed upgrading file package. According to the method and device, the upgrading failure caused by space lack in the re-upgrading process is avoided, so that the upgrading can be completed at a time and the upgrading efficiency is improved.

A luminance and color separation filter unit (300) for extracting a luminance signal (Y) and two color signals (U, V) from a composite color television signal (CVBS). The filter unit (300) comprises: acquisition means (302) to acquire a first sample of the composite color television signal, corresponding to a first pixel and other samples, corresponding to other pixels in a neighborhood of the first pixel; correlation estimation means (304) to estimate a first set of correlation values representing correlations between the first sample and the respective other samples; penalty estimation means (306) to estimate a second set of penalty values representing relations between the first sample and the respective other samples; computing means (308) to compute a third set of combined values by means of combining respective elements of the first set and the second set; selection means (310) to select a particular sample of the composite color television signal on basis of the corresponding combined value; and decoding means (312) to determine a final luminance value and two color values corresponding to the first pixel, on basis of the first sample and the particular sample.

The invention relates to a Eu complex red luminous crystal material containing two ligands and a preparation method of the Eu complex red luminous crystal material. The chemical formula of the luminous material is {[Eu(TFBA)].(HMIMDA)].H2O]}n, wherein n is greater than 1. The material can be motivated by visible lights and emits bright red fluorescence. The Eu complex red luminous crystal material containing two ligands prepared by the invention can emit strong red visible lights to satisfy the display demands of electronic industry, public places, home appliances and the like as well as the display demands of three-primary-color fluorescent lamps and large-screen and high-definition color televisions, and has wide application in the luminous material field such as beacon lights in stations and wharves. The luminous material provided by the invention is simple in synthetic method, the raw materials are cheap and are easily available, and the crystallinity of the product is relatively good. The luminous material is free of toxicity and pollution, high in thermal stability, good in water solubility and excellent in luminous performance.

The invention discloses a high-definition drilling color television-based rock mass structure surface search method. The method comprises the implementation steps of extracting information such as spatial coordinates, occurrence, characters and the like of a structure surface according to geological surveying and mapping, exploratory adit geological recording and high-definition drilling color television interpretation; establishing a spatial planar geometric equation of the structure surface; comparing spatial positions and characters of two structure surfaces; and judging whether a spatial relationship between the two structure surfaces belongs to the same structure surface or not. The method is used for finding out characteristics of spatial distribution, characters and the like of thestructure surface in rock mass; structure surface information disclosed by drilling is fully utilized; the limitation of a conventional method is overcome; the search range is expanded; the search reliability is improved; and the method has the characteristics of simple operation and high reliability.

The present invention discloses an LCD television, and relates to the technical field of display devices. The technical problems that a front housing of a conventional LCD television is disposed at an outer side of a screen iron frame, the screen iron frame needs to be fully wrapped, a certain covering distance needs to be left, and the side frame width of the LCD television is thus thick and cannot be reduced are solved. The LCD television comprises a liquid crystal panel and a backlight module, the backlight module comprises a rubber frame, an optical film assembly and a back plate, the optical film assembly is arranged on the back plate, the rubber frame is arranged on the back plate and surrounds the optical film assembly, the liquid crystal panel is arranged above the rubber frame and the optical film assembly, the LCD television also comprises an outer frame, the outer frame comprises a front frame part, a rear frame part and a side frame part, the front frame part contacts the liquid crystal panel so as to support the liquid crystal panel, the rear frame part contacts the back plate side so as to realize supporting of the back plate, and the side frame part is used for connecting with the front frame part and the rear frame part to form a receiving space, thereby fixing the liquid crystal panel and the backlight module in the receiving space.

The invention discloses a digital-analog integrated color television receiver system, including a tuner, a main controller, an audio processor and a video processor, wherein, the tuner inputs radiofrequency signals for watching the programs and outputs IF intermediate frequency signal of programs required to watch; the main controller performs magnification and chrominance encoding to the IF signal of the watching program, outputs the audio signal onto the audio processor and outputs the video signal onto the video processor, the main controller is connected to a digital signal processor, which performs demodulation and decoding process to the IF signal of the watching program output by the tuner and outputs audio signals to the audio processor. Compared with the existing technology, the invention can not only receive digital TV signals but also can receive analog TV signals, digital TV can not be resolved to receive analog signals, analog television to receive digital signals can not be the problem, realizes the transition from analog TV to digital TV, and the invention can complete the entire operation only by a remote controller, for simplifying the users' operations.

The invention discloses multilayer synchronous lifting equipment which is characterized by being provided with a support framework mechanism, a lifting mechanism and plane conveying mechanisms, wherein the support framework mechanism consists of an upper rectangular frame, a lower rectangular frame and four support rods connected between four vertex angles of the upper rectangular frame and four vertex angles of the lower rectangular frame; the lifting mechanism consists of servo motors, transmission screws and transmission nuts; and the plane conveying mechanisms consist of conveying plates, conveying belts and driving motors. The equipment can carry out multilayer synchronous lifting on flat color television sets or electronic products for different technical processing, so that simultaneous implementation of multiple technologies is realized on the basis of occupying site area of a single production line, the positioning accuracy after lifting is high, an equipment failure incidence rate is greatly decreased, and the maintenance intensity during production is reduced.

To provide an A/D converting circuit capable of improving an S/N ratio regardless of a color television system. An over-sampling A/D converting circuit according to an embodiment of the present invention includes: an A/D converter for over-sampling an analog video signal; a digital low-pass filter allowing passage of a signal component in a predetermined passing band out of the over-sampled signal; a down-sampling circuit for down-sampling the passed signal; and a color television system determining circuit for switching the passing band.