Did You Know...
...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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| Number | Title | Issue Date |
| 6510125 | Storage medium having electronic circuit, apparatus communicating information with the electronic circuit, and system including them The present invention provides a storage medium having intelligence that has, in one-piece, a storage medium and an electronic circuit, and has communication structure with an external apparatus to reduce loads of a main-frame of a system, and that can fu... | 01/21/2003 |
| 6133888 | Polarization-agile multi-octave linear array with hemispherical field-of-view An antenna including a plurality of radiating elements disposed in mutually orthogonal pairs arranged in a predetermined pattern to radiate and receive RF signals over multi-octave frequency bands; and divergent lens means to provide stability for the pre... | 10/17/2000 |
| 5969694 | Telescopic rod antenna and method for manufacturing the same A telescopic rod antenna according to the present invention includes an antenna element and a waterproof ring-shaped seal member which is inserted in a ring-shaped gap in a joint between two rods of the antenna element. The ring-shaped seal member is obta... | 10/19/1999 |
| 5892484 | E-field generator An E-field generator for r.f. susceptibility testing comprises first and second conductive arms, each comprising a conductor having a U-shaped portion. A driving circuit connected to first ends of each conductor delivers r.f. power to the arms. A load res... | 04/06/1999 |
| 5600332 | Wideband, low frequency, airborne vivaldi antenna and deployment method A wire antenna having a Vivaldi taper that is used to radiate or receive low frequency RF energy from or to an airborne platform. The antenna comprises two conducting wires that trail from the platform, and which comprise a radiator having a Vivaldi taper... | 02/04/1997 |
| 4498086 | Broad band liquid loaded dipole antenna A broad band dipole antenna of short length is formed by two tubular linear radiators which are spaced apart at their adjacent inner ends. Each of the radiators is encased in an electrically insulative sleeve and the antenna is liquid loaded along its len... | 02/05/1985 |
| 4382260 | Two channel transmit only antenna The two channel transmit only antenna includes a balanced antenna and a ground plane disposed between the two radiators of the balanced antenna. The two radiators are fed by a three wire arrangement having one conductor connected to ground and the ground ... | 05/03/1983 |
| 4062010 | Underground pipe detector An apparatus and method wherein an electrical impulse source transmits a radar-type signal through an antenna into the ground and is reflected by a target. The reflected signal or echo is detected by the antenna and an analog-to-digital converter converts... | 12/06/1977 |
