U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 348/819 - Radiation protection for user


Subclass of Class 348 - Television
Definition: Subject matter wherein the protective structure is intended
No. of patents: 75
Last issue date: 10/28/2008


1    
NumberTitleIssue Date
7443697Electronic device having bezel structure
An electronic device having a bezel structure includes a case, an installation element, part of which is installed to the case, a conductive bezel having a loop shape to fixedly couple the installation element to the case, and an electronic unit provided in the case...
10/28/2008
7338705Static dissipation treatments for optical package windows
An optically transparent conductive material is disposed directly or indirectly on an inside surface of a cover material for static dissipation in an optical switching device. The optically transparent conductive material forms an electrically continuous film. The o...
03/04/2008
7315334Controlling viewing distance to a television receiver
A child is encouraged not to sit close to the screen of television receiver. A base unit on the television receiver has a proximity detector that senses whether the child is within a preset range forward of the television receiver. In response to a range violation, ...
01/01/2008
7068293Method of automatic monitor display adjustments
A method of automatic monitor display adjustments is disclosed. After the monitor is connected to the power and receives a display signal from a computer host, NTAA (No Touch Auto Adjustment) is initiated to automatically adjust the display range and other display s...
06/27/2006
7057609Electromagnetic interference prevention apparatus for flat panel display
An electromagnetic interference (EMI) prevention apparatus for a flat panel display which is capable of modulating the frequency of an input clock signal using a spread spectrum clocking method to increase the frequency of the clock signal and reduce the amplitude t...
06/06/2006
7033672Static dissipation treatments for optical package windows
An optically transparent conductive material is used for static dissipation of a cover material for an optical switching device. The optically transparent conductive material is deposited directly or indirectly on the cover material. The optically transparent conduc...
04/25/2006
7011416Projection television
A projection television having a CRT assembly projecting image beams and front and rear casings, respectively provided in a front and a back of the CRT assembly, and further having a pair of CRT brackets provided between the front and rear casings, to support the CR...
03/14/2006
6991849Near infrared ray shielding film
A near infrared screening film which consists of a biaxially oriented film made from a polyester containing a near infrared light absorber having a weight reduction start temperature of at least 280° C. and which has a haze value of 5% or less and a total transmitt...
01/31/2006
6927696Viewing distance safety system
A viewing distance safety system, utilizing a viewing distance safety device having two ultrasonic sensor modules at a particular angle to each other to achieve a wide field of view, and includes an adjustable, user selected, distance threshold setting that activate...
08/09/2005
6906758Cooling structure for projection television
Disclosed is a cooling structure for a projection television, which keeps the inside of the projection television clean and effectively cools the heated projection television. The cooling structure for the projection television comprises a heat blocking unit for sep...
06/14/2005
6894684Computer system and image processing method therefor
Disclosed are a computer system and an image processing method, that can easily reduce the EMI (electromagnetic interference), introduced into a liquid crystal display using the spread spectrum. The computer system includes a graphic processing unit for converting t...
05/17/2005
6884936Electromagnetic shield film, electromagnetic shield unit and display
An electromagnetic wave shield film (1) comprises a transparent base (2), a conductor (4) positioned on the transparent base (2) via an adhesive (3) and having a mesh geometric pattern, and an earth portion (5) arranged arou...
04/26/2005
6873374Shielding apparatus of projection television
A shielding apparatus of projection television is disclosed. A metal shield casing made of metal plate members shields an optical block and a circuit block. Metal plate printed board holding sections are connected to the metal shield casing detachably at predetermin...
03/29/2005
6847404Video display protection circuit
An apparatus and a method for protecting a video display device, having an anode and a cathode, against excessive beam current conditions. In particular, the present invention protects the video display device against zero-biasing of the device, wherein the cathode ...
01/25/2005
6833665Flat display panel with a front protection plate
A flat display panel comprising a flat display panel main body, and a front protective plate which comprises an antireflection layer, a translucent electrically conductive layer, containing a metal having an electromagnetic wave shielding property and a near infrare...
12/21/2004
6797876Image display device
There is provided an image display device including a panel of good work efficiency which can prevent the destruction of its conductive coat due to discharge and can highly efficiently reduce the leakage of unwanted radiation electric fields. The image display devic...
09/28/2004
6717048Electromagnetic shielding plate and method for producing the same
An electromagnetic shielding plate having a glass substrate and a geometric pattern formed on the substrate, in which the geometric pattern contains (a) an inorganic filler selected from the group consisting of metals and metal oxides, and (b) a glass component havi...
04/06/2004
6693679Monitor front case with gate landings
A monitor front case with gate landings is disclosed. Each of the gate landings is formed on the CRT seating surface of the front case at a position around each gate flash remaining on the case due to a gate of an injection mold. Each gate landing is depr...
02/17/2004
6686536Method of forming electrode section on inner surface of transparent electromagnetic wave shielding plate, and transparent electromagnetic wave shielding plate formed thereby
This invention provides a method of forming an electrode section on the inner surface of the transparent, electromagnetic wave shielding plate, composed of a transparent substrate coated with an electroconductive member and transparent film in this order....
02/03/2004
6674491Method for reducing the electromagnetic irradiation of an OSD system
The invention relates to a software method for reducing the electromagnetic irradiation of the Phase Lock Loop (PLL) within an On-Screen Display Menu system. The method includes the steps as follows: setting the resolution of an OSD system to a predetermi...
01/06/2004
6575581Image projection method and image projector
An image projection method for projecting laser beams and an image projector that projects laser beams are adapted to shut down the laser beams instantaneously when an obstacle intruding into the projection area of the laser beams is detected. A detection...
06/10/2003
6498630X-ray protection circuit
An x-ray protection circuit for a video processor, to disable a horizontal output pulse when a voltage level on the x-ray input exceeds a reference voltage. The x-ray protection circuit comprises a comparator and a bistable device, and incorporates a rese...
12/24/2002
6492587EMI shield filter and display apparatus having EMI shield filter
An EMI (ElectroMagnetic Interference) shield filter for a display unit has a conductive mesh in which a plurality of first and second conductors are arranged in horizontal and vertical directions. A gap in one of the first and second conductors is set lar...
12/10/2002
6448492Transparent member for shielding electromagnetic waves and method of producing the same
The invention provides a transparent member for use as a shield against electromagnetic waves characterized in that an electrically conductive reticular pattern is provided on a substrate (1) by forming a thin-film layer (2) of copper or an alloy thereof ...
09/10/2002
6429750Method for attenuating electromagnetic interference using resonant cavities of dissimilar dimensions
An EMI attenuation device comprising at least two substrates such that the spacing between these substrates is selected to maximize shielding performance at a particular frequency. The device further comprises additional substrates arranged at predetermin...
08/06/2002
6144416Apparatus of shielding VLF electric field emitted from front face of CRT in video appliance
An apparatus of shielding a very low frequency (VLF) electric field on the front face of a cathode ray tube (CRT) in a video appliance. The apparatus includes a signal detection section, connected to the flyback transformer, for detecting an anode voltage...
11/07/2000
6067188Apparatus for providing a near-IR emission suppressing/color enhancing accessory device for plasma display panels
The present invention is directed to apparatus for enhancing the performance of visual display units which utilize plasma display panels. More specifically, the present invention provides apparatus for providing an electrical noise suppressing/chromaticit...
05/23/2000
6040878Apparatus, methods and material for absorbing magnetic radiation
Hook- and loop-type tapes are selectively attached to a video display unit and to flexible elongated strips of magnetic material so that the strips of magnetic material may be removably mounted around the video display unit in orthogonally intersecting pl...
03/21/2000
6034744Magnetism shield for cathode ray tube
A magnetism shield for a color cathode ray tube is disclosed including: a shadow mask through which an electron beam passes; a mask frame to which the shadow mask is fixed; an inner shield fixed to the mask frame and for preventing the path of the electro...
03/07/2000
6020939Method and apparatus for reducing electromagnetic interference radiated by cathode ray tube displays
Electromagnetic interference ("EMI") is reduced in a CRT video display system by spreading-out the EMI-producing spectra present in the video pixel data and/or clock signals. A clock dropping circuit coupled between the display generator main oscillator a...
02/01/2000
5990625LCD having noise counteracting parallel resonant circuit
In an electrical assembly with an electrical or electronic component part that generates a noise signal with a disturbing frequency, a parallel resonant circuit tuned to the frequency is arranged in the immediate proximity of the component part....
11/23/1999
5969775Video display appliance including a device for eliminating electric field emitted from a cathode ray tube
A video display appliance having a device for eliminating the radiation wave emitted from a cathode ray tube. The appliance includes a shielding wire wound one to several times along the periphery of a degaussing coil. The pulses having the same level and...
10/19/1999
5874879Leakage flux canceling device
A leakage flux canceling device is provided which requires a small number of parts and which has high space factor. A leakage flux canceling device 30 is mounted to a funnel side of a deflecting apparatus for reducing leakage flux to a panel side attribut...
02/23/1999
5841227Radiation shield with opaque and transparent portion
An auxiliary radiation shield for a CRT-type video display terminal includes a generally flat front portion having an at least partially transparent conductive central shield and an opaque frame-like conductive outer shield surrounding the central shield,...
11/24/1998
5831390CRT with a transparent film and a compensating electrode
A transparent conductive film is formed on an outer surface of a face portion of a face panel and a phosphor screen is formed on an inner surface thereof. A conductive explosion proof band is wound around an outer periphery of a skirt portion of the face ...
11/03/1998
5814941Device for eliminating low frequency radiation of monitor
A device for eliminating low frequency radiation of a computer monitor is disclosed, including a pair of first conductive plates disposed on two opposite sides of a cathode ray tube of the monitor to generate a radiation signal thereon that is induced by ...
09/29/1998
5811923Plasma display panel with infrared absorbing coating
The present invention is directed to methods and apparatus for enhancing the performance of visual display units which utilize plasma display panels. More specifically, the present invention provides methods and apparatus for providing an optically enhanc...
09/22/1998
5805201Device for automatically controlling a television
An automatic control device is provided for automatically controlling a television. The automatic control device comprises a distance measuring portion (17) for measuring a distance between a screen of the television and a viewer watching the television, ...
09/08/1998
5757338EMI reduction for a flat-panel display controller using horizontal-line based spread spectrum
A graphics controller uses spread-spectrum techniques to modulate the pixel clock over a range of frequencies, reducing the maximum intensity of EMI emissions. When the clock input to the graphics controller is replaced with a modulated clock, the image o...
05/26/1998
5701061Cathode-ray tube apparatus and yoke
A cathode-ray tube apparatus capable of reducing a high frequency electric field radiated from the deflection yoke and the deflection and high voltage circuit to the outside of the cathode-ray tube apparatus. Mounted on the deflection yoke or on the catho...
12/23/1997
1    
 
Sign InRegister
Username  
Password   
forgot password?