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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7382320 | Circularly polarized antenna The present invention relates to a circularly polarized antenna and, more particularly, to a compact circularly polarized antenna for transmitting and receiving a circularly polarized signal. The circularly polarized antenna comprises a substrate having an upper sur... | 06/03/2008 |
| 7362272 | Circularly polarized antenna The present invention relates to techniques to excite a circularly polarized antenna and, more particularly, to a circularly polarized antenna having a QUAD-EMC unit structure. It comprises plural polarized antenna elements; a signal distributor; and a signal coupli... | 04/22/2008 |
| 7126556 | Digital indoor antenna device A digital indoor antenna device having a casing, a pivotal seat, a circular antenna having two ends and a PCB in the casing. The pivotal seat attached to the casing has two mounting holes respectively in which the two ends of circular antenna are mounted. The circul... | 10/24/2006 |
| 7061441 | Stripline fed stub-loop doublet antenna system and method A stub-loop based antenna doublet array having an offset feed and adjustably positioned stub-loops is provided that enables improved isolation of the horizontal versus vertical polarization characteristics from the impedance. Consequently, conventional VSWR adjustme... | 06/13/2006 |
| 6992630 | Annular ring antenna The antenna includes a substrate, such as a dielectric material, and an electrically conductive circular ring on the substrate and having an outer diameter and an inner diameter concentrically arranged. The outer diameter is less than 1/10 an operating wavelength, a... | 01/31/2006 |
| 6930639 | Dual-element microstrip patch antenna for mitigating radio frequency interference Method and apparatus for reducing radio frequency interference (RFI) using a dual-element patch antenna [10]. The antenna possesses two antenna elements [13, 14] having distinct radiation patterns. Either element may be independently selected using a D... | 08/16/2005 |
| 6879299 | Induction antenna loop for low-level digital tablets The present invention provides an antenna loop and its layout for low-level digital tablets. The antenna loop for low-level digital tablets in the present invention consists of enameled wire; the layout comprises a single antenna loop consisting of enameled wire. Ea... | 04/12/2005 |
| 4160978 | Circularly polarized loop and helix panel antennas An antenna including a conductive support for supporting a plurality of radiating elements in line next to one another above the conductive support and transmission lines serially connecting the radiating elements. The radiating elements of the loop or he... | 07/10/1979 |
