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| Number | Title | Issue Date |
| 7365151 | Solvent for treating polystyrene resin and method of treating polystyrene resin with the same A solvent for polystyrene resin treatment is used for reducing the volume of a polystyrene resin by contacting it with the solvent; and a method of treating polystyrene resins. The solvent is characterized by comprising 20 to 70 wt. % of diethylene glycol dimethyl e... | 04/29/2008 |
| 7262563 | Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation “twister” coil and a vertical deflection coil, scan lines can be uniformly spaced ... | 08/28/2007 |
| 7091677 | Deflection yoke and cathode ray tube device An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a fi... | 08/15/2006 |
| 6828741 | Deflecting yoke apparatus and television receiver A deflecting yoke apparatus comprising first and second frame coils configured to correct a vertical horizontal misconvergence first and second main coils and first and second sub-coils which are wound around a core and configured to deflect in a vertical direction ... | 12/07/2004 |
| 6707510 | Deflection yoke having horizontal deflection coils and a balance coil and method for constructing thereof A deflection yoke has first and second horizontal deflection coils formed of a solid wire. A first bobbin and a second bobbin are formed in one-piece construction with each other. The first coil-end lead of the first horizontal deflection coil and the second coil-en... | 03/16/2004 |
| 6686707 | Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation "twister" coil and a vertical deflection coil, scan lines can be uniformly ... | 02/03/2004 |
| 6636006 | Deflection yoke with multiple pairs of vertical coils and switched deflection current A deflection yoke for use in a cathode ray tube includes a switching circuit, which is coupled to each vertical coil. The deflection yoke employs two pairs of vertical coils. The vertical coil pairs can be two pairs of saddle type coils, one pair of saddl... | 10/21/2003 |
| 6633141 | Display device with deflection means and means for influencing the distance between electron beams A cathode ray tube display having an in-line tube includes an electromagnetic unit for dynamically influencing the path or shape of the electron beams. The power for supplying current to the electromagnetic unit is drawn from the line deflection circuit, ... | 10/14/2003 |
| 6483558 | Color television receiver or color monitor having a flat screen Color television apparatus and color monitors are provided with a device, in particular with an electron lens system, to vary the mutual spacing of the electron beams generated in an electron beam generating system. By reducing the mutual spacing between ... | 11/19/2002 |
| 6388401 | Color display device having quadrupole convergence coils The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6,7,8), a deflection unit (51) for deflecting the electron beams (6,7,8) and a convergence unit (14') for dynamically influencing t... | 05/14/2002 |
| 6307333 | Color display device with a deflection-dependent distance between outer beams A color display device comprises an electron gun, a display screen with a curved inner surface and a flat color selection electrode as well as a deflection means. The distance between the electron beams is dynamically varied, whereby the distance in the d... | 10/23/2001 |
| 6291948 | Image distortion correction circuit An image distortion correction circuit is provided in which a horizontal deflection current (IH) flows through horizontal correction coils (L1, L2) and a vertical deflection current (IV) flows through either of vertical correction coils (L3, L4). The vert... | 09/18/2001 |
| 6097163 | Electron beam deflection apparatus using an auxiliary deflection coil and a compensation coil An apparatus for electron beam deflection in a cathode ray tube, in particular in a picture tube of a television set, comprises a deflection coil arrangement for horizontal and vertical deflection of the electron beam, an auxiliary deflection coil arrange... | 08/01/2000 |
| 6046713 | Color display device including electron beam deflection arrangement for landing-correction A color display device including a shadow mask and a correction deflection system for correcting landing-errors. The correction deflection system comprises first and second correction deflection devices which are arranged one behind the other in the direc... | 04/04/2000 |
| 5982458 | Convergence correction circuit and three tube type projector having the same A convergence correction circuit for use in a projection CRT of the electrostatic focusing type, including a neck portion provided with a sub-deflection yoke for convergence correction. A coupling correction filter and an eddy current correction filter ar... | 11/09/1999 |
| 5936363 | User controlled deflection apparatus for correcting upper and lower distortions of a CRT A system to correct and adjust horizontal-direction pincushion and barrel distortions of scanning lines caused at upper and lower portions of a picture screen of a cathode-ray tube includes a pair of coils provided at a neck portion of the cathode-ray tub... | 08/10/1999 |
| 5838098 | Deflecting apparatus with one piece core and one piece coil bobbin A deflecting apparatus capable of reducing assembling man-hour and improving deflection efficiency is provided. A coil bobbin 12 has an inner peripheral surface on which horizontal deflection coils are wound and includes a bobbin body 15 and a rear bend m... | 11/17/1998 |
| 5786672 | Deflection apparatus for cathode ray tube A deflection apparatus arranged on the outer circumference of a funnel of a cathode ray tube includes a deflection yoke having vertical deflection coils and horizontal deflection coils. A compensation coil is provided on the outer circumference of a front... | 07/28/1998 |
| 5705899 | CRT display having compensation for image rotation and convergence errors A color display device comprising a cathode ray tube and a deflection unit also includes a compensation coil or a compensation-coil system, for example, on the outside of the yoke of the deflection unit, so as to compensate for frame errors and convergenc... | 01/06/1998 |
| 5668447 | Deflection yoke and cathode-ray tube apparatus comprising the same A color cathode-ray tube which includes a deflection yoke having a convergence correcting device and an electron gun provided to the deflection yoke for generating a multiplicity of electron beams. In the deflection yoke, a vertical deflection coil is mad... | 09/16/1997 |
| 5426407 | High accuracy CRT deflection unit A deflection unit comprising a set of preformed diametrical deflection coils. A hollow coil support of synethic material includes at least two lugs into which respective permanent deformations are impressed. The coils are mechanically anchored to the lugs... | 06/20/1995 |
| 5274308 | Convergence correcting device A convergence correcting device is disclosed in which a first correcting element varies an inductance of horizontal correcting coils so as to correct a misconvergence in a saturable region of a flux generated according to the horizontal correcting coils o... | 12/28/1993 |
| 5248920 | Cathode ray tube dynamic electron-optic eyebrow effect distortion correction In a color CRT with an in-line gun and a pin cushion correcting yoke, there is disclosed an eyebrow effect electronoptical distortion correction device comprising two pair of coils, each pair having a coil on each outer electron beam side of the neck in t... | 09/28/1993 |
| 5142205 | Deflection yoke device This invention relates to a deflection yoke device provided with a correction circuit in which horizontal and vertical misconvergences appearing on a screen of a color cathode-ray tube are corrected.... | 08/25/1992 |
| 4894593 | Method of correcting electron beam misconvergence in a color display tube and a color display tube system A method of post deflection correction of electron beam misconvergence in a color display tube, the method comprising: providing at least one permanently magnetizable substantially annular element externally of the tube envelope on the screen side of the ... | 01/16/1990 |
| 4833370 | Electron beam deflector Subcoils are provided on the core portion that serves as a deflection yoke, and a current for correcting convergence is supplied to the subcoils to correct convergence. Further, means is provided to suppress harmful current that is produced by mutual indu... | 05/23/1989 |
| 4749918 | System for correcting for color impurities due to horizontal beam landing errors in flat panel display devices A flat panel display device is divided into channels and includes deflection electrodes for scanning electron beams horizontally across the channels. Convergence electrodes are voltage biased to converge the electron beams at points along the transverse l... | 06/07/1988 |
| 4677349 | Self converging deflection yoke for in-line gun color CRT An apparatus for applying convergence corrections to correct positional and misconvergence errors in a CRT employing a self-converging deflection yoke for magnetic deflection of an inline color gun assembly. Convergence correction coil windings are couple... | 06/30/1987 |
| 4431949 | Lateral convergence correction system An improved lateral convergence deflection system for a delta-gun shadow mask color CRT includes first, second and third lateral convergence coils mounted on the CRT neck radially outward from the paths of the electron beams from the three guns. The coils... | 02/14/1984 |
| 4280080 | Deflection-coil system for color picture tubes The 45°/45° four-pole field required to correct dynamic covergence errors in a color-picture tube have in the past been produced by four auxiliary coils wound around the core of the vertical deflection toroidal-coil. According to the present invention, ... | 07/21/1981 |
| 4172309 | Method of correcting deflection defocusing in self-converged color CRT display systems This disclosure pertains to the production of self-converged color CRT display systems, and in particular to a method of reducing the effects of off-axis deflection defocusing of electron beams in such systems. The disclosed method comprises installing in... | 10/30/1979 |
| 4042857 | Cathode ray tube convergence system A cathode ray tube convergence system includes a cathode ray tube with a plurality of electron beam sources formed to provide electron beams which are underconverged inside of and converged outside of the screen of the tube and a deflection yoke associate... | 08/16/1977 |
| 3935506 | Device for radial, static and dynamic convergence of electron beams in a colour television display tube Thus far a substantial amount of energy was required for the two coils for the dynamic line frequency convergence in a device for radial, static and dynamic convergence. So as to improve this situation, a magnetic bridge is arranged between the two legs o... | 01/27/1976 |
