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| Number | Title | Issue Date |
| 7369084 | Two-sectional controlling method and device for satellite antenna A controlling device for a satellite antenna is provided. The controlling device includes a first signal generating device generating an inertial compensating signal having a compensating direction; a second signal generating device assembling a received signal from... | 05/06/2008 |
| 6778097 | Remote radio operating system, and remote operating apparatus, mobile relay station and radio mobile working machine The present invention relates to remote radio control technology, and a remote radio control system includes a radio movable working machine (1), a remote control apparatus (6A), and a movable repeater station (7). First bidirectional communicat... | 08/17/2004 |
| 5661488 | Antenna drive apparatus equipped with a stepping motor An apparatus is disclosed which computes the full-step number of full-step drive pulses at each control period, generates microstep drive pulses on the basis of the full step number so as to make a drive angle at each control period correspond to a full-s... | 08/26/1997 |
| 5519405 | Direction adjustment indicator for a satellite radio wave receiving antenna A direction adjustment indicator for a satellite radio wave receiving antenna comprises a demodulating circuit to demodulate a satellite radio wave received by the antenna, a peak holding circuit always to output a held peak value of the demodulated outpu... | 05/21/1996 |
| 5424750 | Stationary satellite signal receiving device A device for rotating a parabolic antenna (10) by an actuator (20) to enable reception of electric waves transmitted from a plurality of satellites with the antenna (10). A data for rotating the antenna (10) to enable reception from each satellite at a pr... | 06/13/1995 |
| 5274382 | Antenna system for tracking of satellites In an antenna system for tracking a satellite, a prediction of the angular orientation of the satellite relative to the antenna as a function of time is obtained from the orbital parameters of the satellite. The mechanisms for controlling the angular posi... | 12/28/1993 |
| 4906969 | Method and system for protecting automotive appliances against theft A system for use in an automobile to indicate that the user has failed to remove an appliance, such as a radio, when the ignition switch is turned off. The system includes a circuit including an audible or visual alarm, the automobile battery for powering... | 03/06/1990 |
| 4862179 | Satellite receiver A satellite receiver which selects one of radio waves from a plurality of satellites and receives the selected radio wave. This receiver comprises; a satellite number designation switch; an antenna controller for allowing a parabola antenna to face the de... | 08/29/1989 |
| 4696053 | Antenna alignment system and method A method for effecting communication between first and second antennas, includes the steps of (a) mutually displacing the antennas and determining received signal strength at each antenna and positioning said antennas accordingly to obtain a first quality... | 09/22/1987 |
| 4586050 | Automatic tracking system for antenna An automatic tracking system for an antenna device for satellite communications and using step tracking principles is disclosed which repeatedly effects tracking at predetermined intervals so that the receive electric field from the satellite becomes maxi... | 04/29/1986 |
| 4531125 | Three-dimensional air space surveillance radar A three-dimensional air space surveillance radar in which the radar receiver is connected to a target tracking means which stores target data and does extrapolation of target data for target trace formations, including a panoramic antenna which illuminate... | 07/23/1985 |
| 4358767 | Method of tracking for telecommunications antennae A method of tracking for telecommunications antennae. It consists in carrying out continuous measurements along each axis (X,Y) of displacement and in returning backwards by a measured amount before proceeding to change the axis.... | 11/09/1982 |
| 4331960 | Automatic tracking methods and apparatus A tracking antenna system includes coarse (CEA), medium (MEA) and fine (FEA) antenna arrays symmetrically disposed with respect to a boresight (BST) and controllably connectable to signal processing units (SPU) such that the antenna platform (PTF) is move... | 05/25/1982 |
| 4247857 | Method for controlling an antenna of an earth station for telecommunication via satellites Method for controlling an antenna of an earth station for telecommunication via satellites, which antenna is provided with means to determine the position of the antenna and with means to ascertain the strength of the received signal, the direction of eac... | 01/27/1981 |
| 4223312 | Directive radio communication transmission system for maintaining the alignment of transmission and receiver antenna A directive radio communication transmission system in which the radiation between the receiver and transmitting antenna is automatically and continuously changed in direction by causing the antenna pattern to vary in the vertical direction from a referen... | 09/16/1980 |
| 4090201 | Rate augmented step track system A step track antenna system adapted for tracking rapidly moving signal sources, in which systematic step commands cause antenna rotation in fixed angular increments about each of two orthogonal axes so as to maximize the strength of the received signal. I... | 05/16/1978 |
| 4035805 | Satellite tracking antenna system A satellite tracking antenna system for use on board ship as part of a maritime communications satellite terminal is disclosed. The system has a directional antenna which is continually trained in the direction of the satellite so as to receive signals th... | 07/12/1977 |
