| Patent Number |
Title Of Patent |
Date Issued |
| 5793258 |
Low cross polarization and broad bandwidth |
August 11, 1998 |
| An antenna/downconverter directed to the subscription television distribution industry having low cross polarization and broad bandwidth. The antenna/downconverter includes a director mounted to a housing which defines a reflector cup, side lobe suppression rim and a housing defining |
| 5682426 |
Subscriber site method and apparatus for decoding and selective interdiction of television chann |
October 28, 1997 |
| An decryption system which facilitates simultaneous decryption of multiple encrypted television channel signals thus making them simultaneously available for direct tuning in television receivers. The system is characterized by the utilization of a plurality of channel signals time s |
| 5666126 |
Multi-staged antenna optimized for reception within multiple frequency bands |
September 9, 1997 |
| An antenna suitable for use at subscriber sites in a television distribution system having a high front-to-back ratio and optimized for reception within multiple frequency bands. The antenna is comprised of multiple tapered antenna stages including a primary antenna stage for receivi |
| 5488659 |
Encryption/decryption process and apparatus for a multichannel television system |
January 30, 1996 |
| An encryption/decryption system which facilitates simultaneous decryption of multiple encrypted television signals thus making them simultaneously available for direct tuning in television receivers. The system is characterized by the utilization of a plurality of channel signals each |
| 5440319 |
Integrated microwave antenna/downconverter |
August 8, 1995 |
| An antenna/downconverter directed to the subscription television distribution industry. The antenna/downconverter (20) includes an integral multidisc director mounted to a housing (51) which defines a reflector cup (54), side lobe suppression ears (38) and a chamber (66) which provides |
| 5331332 |
Waveguide coupling structure |
July 19, 1994 |
| A structure (20) coupling a microwave signal to a waveguide (30) is provided. Transmission walls (26) are supported in the waveguide to only partially surround a probe (22) extending longitudinally from the waveguide wall. The probe preferably terminates at one end in a transmit/rece |
| 5225799 |
Microwave filter fabrication method and filters therefrom |
July 6, 1993 |
| A microwave filter (30) and method of fabrication in which an integral housing (22) defining a cavity (23) is formed from a blank (20) cut from a conductive sheet. The blank is bent to form the housing. The resultant housing includes resonators, resonator taps, tuning holes and tap a |
| 5216432 |
Dual mode/dual band feed structure |
June 1, 1993 |
| A feed structure (24) is disclosed which facilitates reception of orthogonal linearly polarized signals from communication satellites. The structure includes probes (34, 36) combined in a cavity (28) with transmission members (50, 52) and an isolation member (54). The structure is pa |
