| Patent Number |
Title Of Patent |
Date Issued |
| 5229781 |
Fine pointing system for reflector type antennas |
July 20, 1993 |
| A pointing system for reflector type antennas providing a high degree of accuracy with low loss over wide scan areas, including a fixed illuminator retained in fixed position at the focal point of the reflector of the antenna. Surrounding the illuminator is a Cardanic joint which acts as |
| 5194874 |
Satellite antenna tracking system |
March 16, 1993 |
| An integrated antenna system for signal error tracking and correction capable of performing a mechanical conical scan. The mechanical conical scan imposes a modulation upon a received RF signal. This modulation is in turn imposed on an AGC circuit in the receiver of the antenna system, |
| 5111354 |
Process for the perfecting of the grounding of multi-layer insulations (thermal blankets) for sp |
May 5, 1992 |
| A method and apparatus for grounding multi-layer insulations (MLI) by electric contact, of either of each layer with the other or of all the layers with the underlying structure by means of one or more points of attachment of mechanical type. This makes it possible to simplify the co |
| 5075649 |
Adaptive phase and amplitude distributor |
December 24, 1991 |
| Adaptive phase and amplitude distributor for use with satellite antennae which require distribution of transmitter-generated microwave power over many elementary radiators having predetermined amplitude and phase characteristics thus achieving required radiation patterns. It consists |
| 4963890 |
Antenna tracking system using sequential lobing |
October 16, 1990 |
| A fine tracking radio frequency sensor system capable of locating ground beacons within an angular field which is substantially larger than -3dB antennae beamwidth beams, to be used preferably on board artificial telecommunication satellites equipped with single or multiple beam ante |
| 4926422 |
On-board switching controller for a satellite with on-board switching |
May 15, 1990 |
| A controller is provided for a baseband switching matrix with one space switching stage. The matrix supplies the controller with a number of service channels (IOTS, CH) of the uplink frames, which channels comprise encoded commands that are decoded by the controller which generates s |
| 4894841 |
Digital direct-sequence spread-spectrum modem |
January 16, 1990 |
| A direct-sequence digital spread spectrum modem in which the given functions are implemented by software algorithms utilizing a microprocessor architecture. The modem is especially effective for telesurveillance, teledetection, telemonitoring, telecontrol and telecommunications gener |
| 4843397 |
Distributed-array radar system comprising an array of interconnected elementary satellites |
June 27, 1989 |
| A radar system for primary and secondary airspace surveillance, and especially for the detection and tracking of moving targets, consisting of a number of elementary satellites connected to nonrigid structures and of a main satellite, which performs accurate measurement of the position a |
| 4800570 |
Concatenated code-decode system for the protection against interference of digital transmissions |
January 24, 1989 |
| A digital signal to be transmitted (TXSG) is encoded through an external code device (EXCD); digital signal TXSG' so obtained (with a bit rate greater than TXSG) is used to modulate, through modulator MOD 1, a transmission carrier later amplified by transmitter TEQ 1 and radiated by |
| 4763129 |
SS-TDMA technique telecommunication satellite systems |
August 9, 1988 |
| Improvement to satellite telecommunication systems using SS-TDMA (Satellite Switch Time Domain Multiple Access) technique equipped with on board regenerative repeaters consisting of: 1. Transmitting from ground to the satellite a signal (CM) with high frequency stability and in harmonic |
| 4678933 |
Solid state relay for aerospace applications |
July 7, 1987 |
| A solid state relay for aerospace applications utilize a transistor circuit for selectively short-circuiting and open-circuiting a secondary winding of a current transformer whose primary winding is in series with an alternating current source and an alternating current load. |
