U.S. patents available from 1976 to present.
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...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Class 345/70 - Including transformer


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter in which the resistor-diode arrangement utilizes
No. of patents: 28
Last issue date: 07/22/2008


NumberTitleIssue Date
7403174Method and apparatus for improving gray-scale linearity of plasma display
A method and an apparatus for improving the gray-scale linearity of a plasma display. At least two types of gray-scale allocations are mixed for forming the original gray scale, or different gray scales are mixed to derive the original gray scale, so as to obtain th...
07/22/2008
7375722Driving circuit and display device
In a circuit driving a capacitive load Cp, current passed through a transistor Q3, a diode D1 and a recovering coil L is passed through lines L1, L2, and the inductance components of the lines L1 and L2, and the drain-source...
05/20/2008
7312574Plasma display panel having display electrode terminals located on the same side, and plasma display device incorporating the same
For reducing EMI and simplifying driving circuits, a plasma display panel includes a first substrate and a second substrate disposed facing each other, a plurality of barrier ribs disposed between the first and second substrates and forming a plurality of discharge ...
12/25/2007
7304436Generator for sustaining pulse of plasma display panel
It is disclosed that there is a sustaining pulse generator of a plasma display panel capable of simplifying a circuit configuration thereof. A sustaining pulse generator of a plasma display panel according to an embodiment of the present invention includes a ...
12/04/2007
7222981EL display device and electronic device
A cover member is adhered onto a substrate on which an EL element is formed with a filler as an adhesive. Further, a sealing member is provided so as to cover a side surface (an exposing surface) of the filler, and a frame member is adhered using the sealing member....
05/29/2007
7148873Entrance intercom specific color panel module
An entrance intercom specific color panel module provides higher lumens and more consistent brightness, lower production cost, upgraded image quality, longer service life, summary manufacturing process, easy assembly and fast replacement of parts, comprised of chip ...
12/12/2006
6977642Back light and liquid crystal display
A back light is provided with light sources, lighting control circuits for lighting the light sources, respectively, and a brightness control circuit for outputting light volume adjusting signals to the lighting control circuits, respectively. The brightness control...
12/20/2005
6762566Micro-component for use in a light-emitting panel
An improved light-emitting panel having a plurality of micro-components sandwiched between two substrates is disclosed. Each micro-component contains a gas or gas-mixture capable of ionization when a sufficiently large voltage is supplied across the micro-component ...
07/13/2004
6731255Progressive sustain method of driving a plasma display panel
A method of driving a plasma display panel showing images having frames composed of odd and even fields. The plasma display panel has scan electrodes and address electrodes perpendicular to the scan electrodes. In the method, first the odd and then the even scan ele...
05/04/2004
6617802Apparatus for recovering energy using magnetic coupled inductor in plasma display panel driving system and method for designing the same
An apparatus for recovering energy using a magnetic coupled inductor so as to drive a plasma display panel (PDP) and a method for designing the same. Accordingly, reactive power and heat dissipation amount are reduced without having an additional isolatio...
09/09/2003
6456264Method of driving plasma display panel with automatic power control function
In an address-while-display (AWD) driving method in which addressing and sustaining are simultaneously performed, a plasma display panel (PDP) is driven with an automatic power control function for reducing power consumption when there are lots of ON pixe...
09/24/2002
6404411Display panel driving method and discharge type display apparatus
The present specification and drawings disclose a technique to display image on the display panel using subfield. Particularly, it is disclosed that the technique for conducting the reset operation by impressing, to the electrode of cells, a plurality of ...
06/11/2002
6160531Low loss driving circuit for plasma display panel
The present invention discloses a driving method utilizing a driving circuit for driving a plasma display unit of a plasma display panel. The plasma display unit is repeatedly charged for sustaining an image signal. The driving circuit comprises an induct...
12/12/2000
6150999Energy recovery driving circuit for driving a plasma display unit
The present invention provides a driving circuit for driving a plasma display unit. The plasma display unit can be repeatedly charged for sustaining a display of an image signal. The driving circuit comprises two driving circuits, a control circuit, and a...
11/21/2000
6034657Plasma display panel
A plasma display panel includes a front substrate; a plurality of row electrodes provided on an inner surface of the front substrate; a dielectric layer provided on the inner surface of the front substrate so as to cover the row electrodes; a rear substra...
03/07/2000
5821923Picture display device
Picture display device with one or more resonant selection pulse drivers for generating selection pulses for selecting rows of pixels. The resonant selection pulse driver has two driver output electrodes to which selection electrode(s) are connected for s...
10/13/1998
5763139Plasma display panel and method for manufacturing the same
A plasma display panel includes a light-transmittable first substrate, a plurality of first electrodes provided in correspondence with pixels on the first substrate and partition walls provided on the first substrate so that each of the partition walls su...
06/09/1998
5629716Luminescent panel for color video display and its driving system, and a color video display apparatus utilizing the same.
A plurality of filaments are stretched in parallel on a rear plate, and an insulating plate is provided so as to cover the filaments. In the insulating plate, a plurality of through-holes are formed along the longitudinal direction of the respective filam...
05/13/1997
4347509Plasma display with direct transformer drive apparatus
A system for driving a plasma display panel is disclosed in which a transformer operated at a system clock frequency supplies voltage pulses to both the electrodes in the cells of the display device. Switching members operated by control signals generated...
08/31/1982
4346379AC Drive system for plasma display panels
An improved drive scheme for a plasma display panel having a cell formed at the crossover point of each of the panel's column and segment electrodes and a control system for implementing this drive scheme. The drive scheme of the present invention compris...
08/24/1982
4303918Gas panel with improved drive circuits
A driving circuit for a gas-discharge display device includes a pair of switching members and the secondary windings of a transformer wired in series with one of the switching members. The switching members in response to receiving out-of-phase control si...
12/01/1981
4110663Plasma display panel driving circuit including apparatus for producing high frequency pulses without the use of clock pulses
In a circuit for driving a plasma display panel, a blocking oscillator produces pulses varying between a positive and a negative voltage. Transistors controlled by first selection signals selectively supply first electrodes of the panel with either the co...
08/29/1978
4056806Interfacing circuitry and method for multiple discharge gaseous display and/or memory panels
An interface circuit and method for multiple discharge gaseous display and/or memory panels utilizing the slope characteristics of individual discharge units in a multiple discharge panel to control the status of individual units without effecting the sta...
11/01/1977
4027196Bilateral selective burst erase system
Erase waveforms effecting improved erase action are provided for a gas panel of the type in which light emitting cells are formed in an ionizable medium at the crossover point of a set of horizontally and vertically extending insulated wires. The erase wa...
05/31/1977
4002946Latching driver circuit for a gas panel display
The circuit and structure of a high voltage switch with latchup is disclosed for a latching driver used in a gas panel display. The driver circuit functions as a high voltage, single pole, double throw switch with memory. A plurality of the latching drive...
01/11/1977
3973253Floating addressing system for gas panel
A system for addressing and controlling a gaseous discharge display or memory device is adapted for intercommunication between a processor or controller, control logic and panel driving circuits in a gaseous discharge display system. By application of wri...
08/03/1976
3969715Gas panel with improved write circuit and operation
An improved write waveform is provided for a gas panel of the type in which light emitting cells are formed in an ionizable medium at the cross points of a set of horizontally and vertically extending insulated wires. A write pulse of high amplitude is fo...
07/13/1976
3959669Control apparatus for supplying operating potentials
There is disclosed a system for supplying operating potentials which is particularly useful with load devices wherein at least two transversely oriented conductors are dielectrically isolated from a gaseous discharge medium between the conductors. The sys...
05/25/1976
 
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