316 results about "Kinescope" patented technology

The radius of curvature of the outer surface of a panel is 10,000 mm or more, and a shadow mask is made of a material containing 95% or more of iron. A sagging amount change curve along a curve C1 on the surface of the shadow mask, which a plane passing through a center P0 of a useful area of the shadow mask and parallel to a tube axis and a major axis crosses, satisfies a particular Condition 1. Assuming that an intersection between the curve C1 and a useful area end of the shadow mask is a major axis end PL, a distance from the center P0 to the major axis end PL along a major axis is W, and a point on the curve C1 away from the center P0 by ⅔×W in the major axis direction is P1, a sagging amount change curve along a curve C2 on the surface of the shadow mask, which a plane passing through the point P1 and parallel to the tube axis and the minor axis crosses, satisfies a particular Condition 2. Consequently, a color picture tube can be realized, which has satisfactory visibility, and less degradation in color purity caused by doming while having a shadow mask made of an inexpensive material with satisfactory moldability.

This invention discloses a sort of high speed dynamic checking device of the railroad delimitation, it relates to a sort of railroad delimitation checking device. This invention uses synthetically several high-new technique in that the GPS global positioning system, the body measurement system, the dead rocking system, the auto-control, and so on. It realizes the measure and collection of the space geographical data and the attribute data to the objects which is in or near the railroad. It notes the actual photograph along the railroad real time. It provides the measurement result of the delimitation scene by the measurement function of the post treatment. This invention can shoot clear sight kinescope along the railroad too, it choices one point in the wheel path map, it can obtain expediently and fleetly the sight kinescope of this point and progress play. It helps to obtain the status message of the railroad establishment, and it progresses the conduction to the railroad capital. This invention is the same with this checking area of internal railroad delimitation, and has remarkable use value and economic returns.

An automatic picture tube cutting machine is provided. The machine includes a transporting mechanism for transporting a tray carrying a picture tube into a moving-up-and-down base, which automatically adjusts the vertical position of the picture tube based upon its size. The machine also includes a positioning and cutting device wherein a plurality of clamp units cooperatively set tungsten heating filaments in contact with the picture tube to circumscribe that picture tube at a preset cutting height. Upon heating via the tungsten heating filaments and subsequent cool water quenching, the picture tube is broken at its circumscribed portion into separated front and rear stages.

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 portable ultrasonic diagnostic apparatus which comprises a main frame, a CRT kinescope, a CRT drive plate, a power panel, a mainboard and a probe plate. The CRT kinescope and the CRT drive plate are installed on the main frame. The power panel is arranged at one side of the main frame vertically. The mainboard and the probe plate are arranged at the other side of the main frame vertically. As the proposal is adopted, a mainboard and probe plate component is apart from the power panel in space, thereby reducing space radiation coupling and improving image output quality. The mainboard and probe plate component and the power panel are arranged symmetrically and are as close as possible in weight, thereby ensuring the gravity center of a whole machine is balanced. The mainboard and the probe plate are connected from board to plate instead of cable, and the mainboard and the probe plate are piled up and shielded, thereby ensuring a compact structure and also avoiding the mutual interference between the mainboard and the probe plate and the interference caused by the connection by a long cable. The whole machine has compact and stable structure, strong anti-interference capacity and good image quality.

An object is to remove unnaturalness of the picture caused by inferior flatness of the apparent screen and provide a safety-designed color picture tube device having a flatter apparent screen without deterioration of static strength of the picture tube. The upper half of the panel (the part above the Z-axis) shows the vertical-axis (V) section and the lower half (the part below the Z-axis) shows the horizontal-axis (H) section. The outside surface of the panel is in a convex form with respect to the Z-axis in the vertical-axis (V) section with a radius of curvature of ROV and is in a convex form with respect to the Z-axis in the horizontal-axis (H) section with a radius of curvature of ROH. The inside surface of the panel is in an almost linear form in the vertical-axis (V) section with a radius of curvature of RIV and is in a convex form with respect to the Z-axis in the horizontal-axis (H) section with a radius of curvature of RIH.

A gamma correction circuit for a television receiver includes a low pass filter for filtering a luminance signal gamma-corrected in a transmitter side and outputting a low frequency zone component luminance signal, a luminance signal corrector for compensating for a high frequency zone component with regard to a color signal transmitted from the transmitter side and the low frequency zone component luminance signal outputted from the low pass filter, an operator for applying a subtraction and a division with regard to the low frequency zone component luminance signal outputted from the low pass filter and the corrected luminance signal, and a color signal restoration unit for restoring a original color signal using the color signal corrected in the corrector and the luminance signal outputted from operator, for thereby being provided to a CPT (color picture tube). The circuit decreases a picture quality degradation and a detail aggravation in accordance with a gamma correction and a zone confinement of a color signal in the transmitter side.

The invention discloses a virtual transaction evidence-obtaining method based on data signature and video technology. The method comprises the following steps: (1) performing kinescope recording to the virtual transaction process of a game through a software; (2) generating video data after the recording is stopped, calculating the video data obtained through transaction to obtain a video summary; (3) combining the video summary with the related information of the virtual transaction in the step (1) to form an original text to be signed, then performing signature of the original text; and (4) combining the original text to be signed with the signature information to obtain an electronic evidence and storing the electronic evidence in a video file. The invention can provide the video evidence which conforms to the electronic signatures law and be applicable to the evidence-obtaining of virtual transactions, the evidence-obtaining of electronic commerce on-line transactions, evidence-obtaining of chatting records, etc.

A method for controlling dissipation in a video amplifier for a display signal. The method comprises the steps of setting a first current for establishing a first gain bandwidth product in the video amplifier. Generating a control signal in accordance with a slew rate of the display signal. Modifying the first current responsive to the control signal such that the video amplifier gain bandwidth product is controlled in accordance with the slew rate of said display signal.

A method for evaluating a color picture tube includes displaying on a display surface of a color picture tube a measurement pattern including a plurality of first patterns arranged at different positions relative to fluophor dots of said color picture tube and a plurality of second patterns near said first patterns and sufficiently large relative to said fluophor dots. A first image is obtained using an imaging element to image said displayed measurement pattern. A second image is obtained using said imaging element to image while controlling light intake to allow brightness components of no more than about 1% of maximum luminance from said first image to be separated from noise and imaged. A third image is created by combining said first image and said second image while adjusting scales according to a light intake ratio. From said third image, display center positions of said plurality of first patterns is calculated using said second pattern positions. Discrete fluophor emission intensity distributions is calculated for each of said plurality of first patterns. An electron beam intensity distribution is obtained by matching display center positions of said plurality of first patterns and combining said plurality of first patterns.

An imaging tube (30) includes multiple high voltage elements (64). A voltage-clamping device (70) is coupled between the high voltage elements (64) and prevents the occurrence of overvoltage transients in the minor insulation of an imaging tube (30).

A CPU for adjusting color purity and color displacement at the center of a screen is provided on an outer circumferential surface of a neck portion. BVM coils for modulating a scanning velocity in a horizontal direction of electron beams are provided at a position where they are overlapped with the CPU in a tube-axis direction. A ring-shaped ferrite core is provided at a position where it is overlapped with the BVM coils in the tube axis direction. Two surfaces vertical to a tube axis of the ring-shaped ferrite core are covered with resin layers. Because of this, the ring-shaped ferrite core can be prevented from being cracked.

The invention discloses a display tube inner inspiratory solution barium membrane inspiratory capacity test device and method, its technical programs installations include sampling system, common gas coefficient tester, inlet pressure-measuring instrument, testing data automatic processing system, the ultra-high spectrometry analysis and exhaust system and test gas supply, storage and steady-pressure system; testing method including pretreatment, residual gas analysis, charging CO gas, measuring tube inlet pressure and the tube-inner pressure, calculating inspiratory rate and inspiratory capacity. This invention uses finished product colorful display tube as measured container, the CRT electron gun as the sensor to measure the vacuum rate in the tube. This invention is applied to accurate, convenient, and rapid test for the colorful display tube inner inspiratory solution barium membrane inspiratory capacity.

The invention provides a device for accomplishing change of standard definition video frequency to high definition video frequency by 4DSP processor array. The systematic device directly up-converts video frequency outputted by original standard definition digital kinescope to high definition digital video frequency signal and inputs the signal to high definition digital video tape recorder. It is characterized in that the data is processed by 4DSP constituted processor array; bilinear Interpolation can be accomplished at DSP multi-processor hardware platform, video frequency is sharpened and contrast is regulated. The system can accomplish real time conversion and up-converts video frequency file of any resolution format, and be agilely and conveniently operated, be subject to functional upgrading.

This invention relates to a method for recovering and utilizing glass shell glass of waste kinescope. The method comprises: (1) classifying glass shell glass of waste kinescope into panel glass, cone glass or mixed glass, separating, washing, and pulverizing into 1-5 mm glass particles; (2) sending the glass particles to the production process of kinescope glass shell as the raw material (not higher than 30%). The method can lower the production cost, improve the melting quality of glass shell glass, reduce environmental pollution caused by abandoning glass shell glass of waste kinescope, and has high social benefit.

The invention relates to a television automatic waiting device, which comprises image collecting module, image processing module and executing module. Wherein, the image collecting module collects the external image at the front of television; the image processing module receives and stores the collected images and compares the images to send instruction; the executing module receives said executing instruction to process automatic wait function. The invention can adjust the time space of image comparison to optimize the waiting condition for different families to save energy and prolong the service life of television.

The invention relates to an inductor for a respiratory volume kinescope. The inductor has a wave-type symmetrical winding structure and comprises a first part and a second part, wherein the first part and the second part are symmetrical about an axial mirror image of the inductor; the first part comprises a first tap, a plurality of coil wave valves and a first connecting part; the plurality of coil wave valves are positioned between the first tap and the first connecting part; the second part comprises a second tap, a plurality of coil wave valves and a second connecting part; the plurality of coil wave valves are positioned between the second tap and the second connecting part; the number of the coil wave valves in the first part and the number of the coil wave valves in the second part are same; the first tap and the second tap are positioned on the same side of the coil and are electrically connected with a plug; and the first connecting part and the second connecting part are mechanically and electrically connected together. Because the two taps are positioned on the same side of the coil and are connected with the plug, the inductor can be connected with a detector or a coupler only by single plugging operation. Therefore, the experimental operation is simple and convenient, and the success rate is high.

Connected between output end of secondary side of power transformer inside video device and cathode of display tube, the time delay circuit includes power supply circuit of output end, followed power supply circuit and voltage comparison circuit. When general power of the video device is turned off or standby state is entered, the power supply circuit of output end and followed power supply circuit are discharged so as to provide reference voltage and comparison voltage for voltage comparison circuit respectively. When comparison voltage is larger than reference voltage, the voltage comparison circuit is turned to on. Current released by followed power supply circuit is provided to cathode of display tube. As discharge is weakened step by step, the display tube enters into shrinking state gradually. Comparing with prior art, the invention prevent unhealthy tendency such as bright spot and color spot on display tube at time of shutting down tube so as prolong service time of tube.

The invention discloses an intelligent measuring apparatus for shadow mask screen aperture, which comprises a light source, a base, a camera lens, a camera, an image collection card, an image treatment unit, a control drive unit, a mechanical drive, and an apparatus system integration unit to support the image process software and shadow mask screen aperture measurement software, set measurement parameter, select function, and modify data. This invention is used mainly to detect the product of color kinescope shadow mask screen aperture for size, shape and light transmittance with speed less than 5s/point and error less than 3%, which is ahead in this industry.

The composition of R2O-BaO (SrO)-ZnO-ZrO2-SiO2 system glass for projection kinescope tube screen is formed from (weight%): SiO2 50-60, Al2O3 0.1-1.0, Li2O 0.5-2.5, Na2O 2-5, K2O 6-12, Li2O+Na2O+K2O 13-20, K2O/Li2O+Na2O+K2O 0.5-0.7, BaO 10-15, SrO 3-10, BaO+SrO 15-24, ZnO 5-7, ZrO2 1-3, CeO2 0.3-1, TiO2 0.25-1, CeO2+TiO2 0.6-1.5, Sb2O3 0.5-1.2, Fe2O3 is less than or equal to 0.020 and the CeO2 and TiO2 are introduced. It has good anti-electron-bombardment discolouration capability and x-ray irradiation discolouration capability, its 0.6A wavelength X-ray absorption coefficient mu is greater than 37 cm (-1), and its melting clarification temp. is less than 1400 deg.C, so that it has good precision press-forming capability.

This invention relates to a method for pre-tuning the volume of a TV to zero when switching on a TV to avoid various problems resulted in over loud volume output in the transient period of switching on the TV including: 1, receiving í‹offíŒ signal from the supplier switch 2, the teletube displays the formation that if the volume is tuned then the viewer selects and inputs the information, 3, judging the information first, if the input information is í‹adjusting the volumeíŒ, then the volume of the storage is set to be zero, 4, ending the operation of the TV when the storage receives the volume information.

The invention discloses a melt sealing technique for a chromoscope sealing, which uses the electro thermal blowing novel technique for the preheating and the annealing during the sealing, namely the sealing mainly completes the high-temperature melt sealing of the tube neck portion and the electron gun glass dish portion of the chromoscope, which belongs to the glass hot-working category, relates to the melt sealing between the tube neck glass and core column glass, the matching sealing-in between glass and a core column wire, and must solve the key techniques, such as the matching between the glass thermal expansion coefficient and the wire, the glass transformation temperature, the glass softening temperature, the glass anneal temperature and the like, since the preheating treatment and the annealing treatment directly affect the success rate of good sealing products, thereby the preheating treatment and the anneal treatment must be solved well to solve the techniques. With the novel technical technique which is disclosed by the invention, the yield of the sealing manufacture of the chromoscope can be greatly improved, and the sealing of products with novel tube type with various tube neck types can be guaranteed.

The present invention relates to a method for melt-making projection kinescope tube screen glass by adopting full-oxygen combustion technique. The full-oxygen combustion technique can be used for medium-sized and small-sized glass tank furnace. The area of tank furnace is 25-40 sq.m, and its full-oxygen combustion fuel is kerosene, diesel oil, heavy oil, antural gas, liquefied petroleum gas and LPG. Said invention adopts 99% oxygen gas and fuel to make combustion, and its produced waste gas only has CO2 and H2O, so that it is favorable for environmental protection, and its melting rate can be raised by above 30%, its glass composition is stable, and the service life to tank furnace also can be raised.

The invention relates to a magnetostriction control alloy sheet advantageously used as a high resolution shadow mask having a low coefficient of thermal expansion, superior magnetic properties and a high Young's modulus after a blackening process, a manufacturing process for the same, and a part for a color Braun tube such as a shadow mask. The magnetostriction control alloy sheet comprises C at 0.01 wt. % or less, Ni at 30 to 36 wt. %, Co at 1 to 5.0 wt. %, and Cr at 0.1 to 2 wt. %, the remainder Fe and unavoidable impurities, and having a magnetostriction lambda after the softening and annealing of (-15x10<-6>) to (25x10<-6>).

A color picture tube is disclosed, that comprises an outer sheath having a electron gun, the outer sheath being airtightly sealed, a face plate having light transmissivity and disposed on the front surface of the outer sheath, and a large number of red, blue, and green pixels regularly arranged inside the face plate, wherein the pixels have a fluorescent substance layer and a color filter, the fluorescent substance layer being lit by a radiation of an electron beam, the color filter being disposed between the fluorescent substance layer and the face palate, and wherein green pixels have a chromaticity that is plotted in the fourth quadrant of a coordinate system of a (L*a*b*) color system where a* is the horizontal axis and *b is the vertical axis when light of a standard light source C is reflected on the outside of the face plate.